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 CRD4622-6
Advanced Product Databook
FEATURES
s PCI Audio Accelerator add-in card designed to meet AC '97 specifications s High quality, 2-layer, single sided adapter board s CS4622/24 SoundFusionTM PCI Audio Accelerator s CS4297 SoundFusion Audio Codec '97 s Complete suite of Analog and Digital I/O connections: s External connections on the mounting bracket: Optical Digital Out, Headphone Out, Line Out, Line In, Mic In s Internal connections on the board: Coaxial Digital In/Out, Modem Audio In/Out, CD Audio In, Video In, Aux In s Sound Blaster ProTM compatible, MPU-401 and Gameport interfaces s Optional hardware volume control connector s Meets or exceeds Microsoft's(R) PC 97, PC 98, and PC 99, both required and advanced, audio performance requirements. ORDERING INFO CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
DESCRIPTION
The CRD4622-6 PCI add-in board reference design showcases Cirrus Logic's Crystal Audio AC '97 add-in card solution using the CS4622/24 SoundFusion Audio Accelerator and the CS4297 SoundFusion Audio Codec '97. This design is a PCI 2.1 compliant, variable height short card measuring only 4.2" high by 4.7" long. The CRD4622-6 reference design includes a customer ready manufacturing kit. Included in the kit are a full set of schematic design files, PCB job files, PCB artwork files, bracket drawings, and bill of materials. The design is production ready as is, or can be easily modified to incorporate specific OEM changes. Documentation source files are available to assist the OEM to quickly provide an accurate end user manual.
MIC IN LINE IN LINE OUT
CD IN
CD IN
VIDEO IN
AUX IN MODEM
CRD4622-6 REV. B
LINE OUT HEADPHONE
CS4297
VOLUME CONTROL
S/PDIF S/PDIF CS4622
JOYSTICK/ MIDI
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK DS293RD6B1
Copyright (c) Cirrus Logic, Inc. 1998 (All Rights Reserved)
JUL `98
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
The following preliminary results have been found when testing the CRD4622-6 with the Portable One Plus system from Audio Precision: Frequency response 32.5 Hz...15 kHz (-3 dB) 12.5 Hz...20 kHz (-0.08 dB) 16.5 Hz...20 kHz (0.1 dB) Dynamic Range (A-weighted) 91.4 dB FS A 92.6 dB FS A 84.5 dB FS A THD+N (-3 dB FS, unweighted) -84 dB FS -89 dB FS -83 dB FS
ANALOG CHARACTERISTICS
Mic In to Line Out (A-A) Line In to Line Out (A-A) Line In to Line Out (A-D-A) Notes:
V line in FS = 2 Vrms, V mic in FS = 125 mVrms, f = 1 kHz (sine), all gain registers set to 0 dB
GENERAL INFORMATION
The CRD4622-6 is a reference design of a production-grade AC `97 PCI Audio card using the CrystalClear CS4622/24 SoundFusion PCI Audio Accelerator and the CS4297 SoundFusion Audio Codec `97. These two integrated circuits demonstrate Cirrus' powerful DSP controller and unsurpassed CrystalClear audio quality in a single PCI add-in card reference design. The design can be based either on the CS4622 or the CS4624 PCI Audio Accelerator, which are functionally identical, except for the increased processing power available with the CS4622 and its ability to perform Dolby(R) Digital (AC-3(R)) decoding in hardware. Customers should base their decision as to which part to use on whether Dolby Digital (AC-3) decoding is required or not. The remainder of this document will refer to the CS4622 only, but every reference to this part is equally valid for the CS4624, except where noted. Today's multimedia applications demand high quality PC audio and many audio connections. To meet this demand Intel(R) defined the AC `97 (Audio Codec `97) specification that defines a two chip audio solution [1]. The idea behind the two-chip solution is to have a separate audio controller chip connected to the PCI bus to accelerate increasingly popular audio processing functions such as Microsoft DirectX(R), wavetable synthesis, and Dolby Digital (AC-3) decoding. A separate audio codec is connected to the controller for analog mixing and data conversion. Audio data is transferred between the controller
chip and the audio codec through a standard digital interface called an AC Link at a 48 kHz frame rate. For more information on AC `97 and the AC Link, please consult the AC `97 specification [1]. The advantage of a two chip audio solution is that the analog section of a system can be completely separated from the noisy digital environment of a personal computer. A 5-wire digital link is all that is required to connect the audio codec to the PCI bus-based AC'97 controller. This allows the audio section to reach the required dynamic range of ~90 dB while making the layout and placement of the audio section easier to implement. In the Windows(R) 95 environment, a MIDI stream and a number of simultaneous audio streams from Windows 95 applications may be sent to the CS4622 over the PCI bus. The CS4622 performs hardware accelerated audio stream mixing and processing, including sample rate conversion, 3D positional audio processing and wavetable synthesis, then sends the output stream over the AC Link to the CS4297. The CS4297 performs the Digital to Analog Conversion (DAC) for this digital audio output stream and also provides multiple analog audio inputs and outputs, analog mixing and Analog to Digital Conversion (ADC). In the native DOS environment, the CS4622 provides legacy games compatibility in hardware. DOS applications may directly address the legacy register set for SoundBlaster(R) and SoundBlaster Pro as well as the gameport. The CS4622 also provides an MPU-401 interface in native DOS. In this environment the CS4622 receives the MIDI data
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
2
DS293RD6B1
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design directly from the PCI bus via legacy compatible I/O. The CS4622 performs the wavetable synthesis function and sends the synthesized audio stream to the CS4297 via the AC Link for digital to analog conversion. This card is designed to provide the highest possible functionality, along with industry leading audio performance at a low manufacturing cost. Care was taken with component placement and signal routing to minimize sources that can degrade audio performance. The CRD4622-6 is FCC Class B certified for EMC emissions. Cirrus' analog design know-how has resulted in a board that preserves the exceptional analog performance of the CS4297. * Dolby Digital (AC-3) 5.1 channel decoding which can be virtualized on two channels (CS4622 only)
The area around the CS4622 includes the required bypass capacitors, PLL power supply filter components, an EEPROM, the components for the joystick connection and a buffer circuit for the external MIDI connection. The layout of this section complies with the PCI specification version 2.1 [2] for add-in cards. Please refer to the Schematic and Layout sections of this document for more information. For more information on the CS4622, refer to the CS4622 Data Sheet [3].
External EEPROM
The CS4622 EEPROM contains the required Subsystem Vendor ID and Subsystem ID values as well as two configuration registers which configure the software driver of the CS4622 to operate in AC `97 Link mode and enable the IEC 958 digital I/O ports. The CS4622 currently requires 8 data bytes in the EEPROM for configuration. The PCI Special Interest Group assigns manufacturers a Subsystem Vendor ID. To meet WHQL standards, the Subsystem ID must be a non-zero value. Please call Cirrus Logic PC Products Audio Division at (512) 445-7222 to have a Subsystem ID assigned to a particular project. A utility, PCIRSRC.EXE, is supplied in this kit to download configuration and OEM specific data to the EEPROM. For information regarding the programming and timing of the EEPROM, refer to the CS4622 Data Sheet [3].
REFERENCE DESIGN FEATURES
The CRD4622-6 reference design illustrates a high quality, 2-layer, single sided add-in card layout. The card is sectioned into two main parts: the CS4622 PCI Audio Accelerator (digital) section, and the CS4297 Audio Codec `97 (analog) section.
CS4622 PCI Audio Accelerator Section
The CS4622, a PCI 2.1 compliant device, is a bus mastering, 300 MIPS DSP optimized for audio signal processing. The CS4624 is a reduced cost version of the CS4622, providing 255 MIPS instead. An efficient on-chip DMA controller and stream processor DSP core provide a number of signal processing functions including: * Hardware acceleration for Microstoft DirectSoundTM, DirectSound 3DTM, and DirectShowTM API's 3-D positional processing for DirectSound 3D API calls using HRTF-based 3D algorithms Mixing and sample rate conversion for multiple concurrent 2D and 3D digital audio streams Concurrent General MIDI compliant, wavetable synthesis with 64-note polyphony and chorus/reverb effects processing
* * *
Joystick/MIDI connection
The DB-15 connector allows a joystick and/or an external MIDI device to be connected to the CS4622. In the AC' 97 configuration, the CS4622 handles the joystick operation. The connector can also take MIDI data from an external source to the CS4622. A buffer circuit allows the CS4622 to drive an external MIDI interface.
3
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
DS293RD6B1
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
Digital I/O
The CS4622 provides both, digital in and out in a format compatible with the consumer portion of IEC 958. An older version of this standard is also known as S/PDIF. The optical TOS-LINK output requires only a few additional components to hook up, but the optional RS422A compliant input/output requires a driver/receiver IC and a transformer to electrically isolate it from the rest of the board.
for the CS4297 and their placement are discussed in the CS4297 Data Sheet [4]. Refer to the Grounding and Layout section of the data sheet for the recommended routing of the audio section.
Power Requirements
The CS4297 requires both a digital +3.3 V and an analog +5 V supply. The digital power is supplied from the same LT1117CST-3.3 regulator that powers the CS4622. A separate regulator is recommended for the analog voltage supply to provide good audio signal quality. A Motorola MC78M05ACDT is used to regulate the +12 V supply from the PCI bus down to a clean +5 V analog supply. This regulator can provide up to 500 mA of current, which is enough for the CS4297, the headphone amp, and the microphone pre-amp.
Hardware Volume Control
The hardware volume control feature of the CS4622 acts as a master volume control. There are no volume control buttons on the board, but a 4-pin (0.1 inch center) shrouded right-angled connector can be populated to provide a cable connection to buttons placed elsewhere in the system. The design allows for a volume up button and a volume down button. Pressing both buttons at the same time toggles the mute function.
Audio Inputs and Outputs
A full feature set of the CS4297's analog I/O and the CS4622's digital I/O is represented on the reference design card through internal and external connectors: * * * * * * * * * * Line Out Headphone Out Line In Mic In CD Audio In Aux In Video In Modem Audio In/Out Optical Digital Out Coaxial Digital In/Out
Power Requirements
A Linear Technologies LT1117CST-3.3 voltage regulator derives the +3.3 V supply for the CS4622 and the CS4297 from the +5 V on the PCI connector. This regulator is unnecessary on mother boards with a +3.3 V supply, but was used in this reference design because the +3.3 V PCI bus power pins are not present on some older PCI bus connectors. The card is also designed to be used in a 5 V PCI connector [2]. Power consumption will vary based upon the processing tasks being executed. The maximum current requirement for the +3.3 V power supply is 300 mA with a typical operating current in the 150-200 mA range during normal audio processing tasks.
CS4297 Audio Codec `97 Section
This section contains the components for the various analog audio connections. It also includes a 24.576 MHz crystal that acts as the master clock in an AC `97 configuration. The capacitors required
Four external 1/8" jacks, one external TOS-LINK jack, and eight internal header connections are used for analog and digital inputs and outputs.
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
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DS293RD6B1
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
Line Out
The Line Out connection can either be made through the external 1/8" jack or the optional internal 4-pin (0.1 inch center) header. If the 1/8" jack is used, the internal 4-pin connector becomes disabled. This output can only drive input impedances greater than 10 k. * Maximum output level: 1 Vrms
two 4-pin (2 mm center) shrouded straight connectors that comply with the PANASONIC and MITSUMI standards respectively have been added as well. Populating more than one header is optional and only one of the headers should be connected to a driving source at any one time. * * Maximum input level: 2 Vrms Differential input using the CD Common pin as the ground
Headphone Out
An external 1/8" jack is provided for a headphone connection. This output is driven by an amplifier for low impedance loads such as 32 headphones. * * Maximum output level: 1.4 Vrms (no load); 1 Vrms (32 load) Maximum output power: 35 mW/channel (32 load) * *
Aux In
Internal 4-pin (0.1 inch center) shrouded rightangled connector Maximum input level: 2 Vrms
Video In
* * Internal 4-pin (0.1 inch center) shrouded rightangled connector Maximum input level: 2 Vrms
Line In
The Line In 1/8" jack provides an input to the Line In pins of the CS4297. * Maximum input level: 2 Vrms
Modem Audio Connection
The modem audio connection can be made through the internal 4-pin (0.1 inch center) shrouded rightangled connector. This connector carries both a mono input and a mono output. * * * Maximum input level: 1 Vrms Maximum output level: 1 Vrms Minimum load impedance: 10 k
Mic In
The Microphone In 1/8" jack provides an input to a microphone pre-amplifier circuit that applies 18 dB of gain to the signal. * Maximum input level: * Microphone Boost enabled: 12.5 mVrms Microphone Boost disabled: 125 mVrms
Optical Digital Out
Digital out is provided through a Toshiba TOTX173 TOS-LINK jack on the board edge. The signal is IEC 958 and CP-1201 compliant.
Supports 3-pin electret (power on ring) and 2pin dynamic microphones
CD Audio In
The CD Audio input provides a 4-pin (0.1 inch center) shrouded right-angled connector that is compatible with the SONY and ATAPI standards. To accommodate various legacy cable connections,
Electrical Digital In/Out
Optional internal digital in and out connections are provided through a 4-pin (0.1 inch center) shrouded right-angled connector. Both the driving and receiving ends are IEC 958 and RS422A compliant.
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
DS293RD6B1
5
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
SCHEMATIC DESCRIPTION
Figures 1 through 13 show the schematics for the CRD4622-6 card. This section will describe particular pages of the schematic that need to be discussed.
joystick buttons. C48-51/54-58/61 also provide EMC protection on the external connector.
Figure 6: S/PDIF Interface
S/PDIF (IEC 958 consumer) output is available in both the optical and coaxial format. S/PDIF input is coaxial only. The coaxial input/output circuit uses a Texas Instruments SN75179B differential driver/receiver pair and a Schott Corporation 29398 digital audio transformer. This section may be omitted if no coaxial S/PDIF functionality is required. R85 must then be populated instead.
Figure 2: PCI Bus Interface
The +12 V power pin is fed directly to the analog power regulator. The +5 V power pins are buffered and decoupled through C96/97 and C100/101. The -12 V and +3.3 V supplies are not used in this design. The PCI 2.1 specification, chapter 4.4.2.1. requires each unused +3.3 V power pin to be ACdecoupled with an average of 0.01 F per pin and trace lengths not to exceed 1/4 inch [2]. A scheme of 7 caps, which are shared between the 12 power pins, has been devised to satisfy both of these requirements. The TDI and TDO pins are tied together according to PCI 2.1 spec, chapter 2.2.10.
Figure 7: CS4297
A 10 F electrolytic capacitor should be added next to pins 25 and 26 if the capacitor connected to the output of the power regulator is located far away from the CS4297. For the best audio performance, the analog voltage regulator should be located near the CS4297. R20 and R21 are termination resistors in the serial AC Link between the CS4297 and the CS4622. NPO type capacitors should be used on all loading capacitors of audio signals to ensure minimal distortion. A population option for different footprints (HC49S and CA-301) has been provided for the clock crystal.
Figure 4: CS4622
The 0.1 F capacitors connected to the power pins of the CS4622 should be as close as possible to the chip. The inductor L8 is used to filter the power supply for the internal PLL circuit. R60 can be removed from a production design, and pin 65 can be connected directly to digital ground. R53 and R54 are termination resistors in the serial AC Link between the CS4297 and the CS4622. All unused input and bi-directional pins are tied to their respective inactive levels through 10 k resistors.
Figure 8: Analog Outputs
The line out is driven directly by the CS4297. A Philips TDA1308 low noise headphone amplifier IC drives the headphone out. This IC uses a single ended supply and is biased with Vref from the CS4297. R45/46 are added for short-circuit protection.
Figure 5: MIDI and Joystick Interface
A buffer driver circuit is used on the MIDIOUT pin to provide the necessary 5 V TTL compatible output on the DB-15 connector. This circuit can be removed, and R37 populated to bypass the buffer driver circuit if a 3.3 V CMOS compatible output is sufficient. Pull-up resistors are required for the joystick buttons and the MIDI input. C44-47 and R28-30/36 provide the correct RC constant for the joystick coordinates and C48-51 de-bounce the
Figure 9: Analog Inputs
The inputs for AUX, VIDEO, CD, and LINE are passed through a divider circuit that reduces the voltage by 50% to allow connection of line level sources up to 2 Vrms. Each divider also contains some EMC filtering components and a 1 F cap to AC-couple into the CS4297. An optional second cap of the same size may be connected in parallel
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
6
DS293RD6B1
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design to improve low-end frequency response. Please note that the internal CD audio connection utilizes a pseudo-differential interface with CD_GND as the common return path for both the left and right channels. Therefore, the input impedance of this block should be half of that of the other inputs. The modem connection is both a mono input and output. The output is fed from the CS4297's MONO_OUT pin through a divider made of R66/67. The divider ratio is preset to 0 dB for an output voltage of 1 Vrms. If a lower output voltage is desired, the resistors can be replaced with appropriate values, as long as the total load on the output is kept greater than 10 k. The input is not divided to accommodate line level sources up to 1 Vrms.
EMC Components
A number of capacitors and inductors are included to help the board meet EMC compliance tests, such as FCC Part 15. These components are outlined in the schematic. The bill of materials has been optimized to reflect which parts are needed to pass the tests for compliance with FCC Part 15 Class B. Modifying this selection of components is likely to fail the board in EMC compliance tests and is therefore strongly discouraged.
GROUNDING AND LAYOUT
The routing of the CRD4622-6 provides a good example of how a PCI add-in card should look. PCI bus based add-in cards have explicit requirements on trace lengths that are not imposed on motherboard designs. These trace length limits for add-in cards are as follows: * * * * * Maximum trace length for 32-bit signals on 32bit and 64-bit cards is 1.5 inches. Maximum trace lengths for signals on the 64bit extension are 2 inches. Trace length for the PCI CLK signal is 2.5 inches 0.1 inch. The PCI CLK signal must drive only one load. Please refer to the PCI 2.1 specification chapter 4.3.6. for information on routing PCI bus signals on a motherboard [2].
Figure 13: Microphone Pre-amp and Bias
A Motorola MC33078D low noise dual op-amp is used to provide a +18 dB gain stage for the microphone and to buffer the phantom power supply for the mic. The phantom power is derived from the +5 V analog supply and buffered by U8A to provide a maximum of 4.2 V with no load and a minimum of 2.0 V under a 0.8 mA load on the ring as required by the PC 99 spec [6].
Component Selection
Great attention was given to the particular components used on the CRD4622-6 board with performance and package selection as the most important factors. Listed are some of the guidelines used in the selection of components: * * * * no components smaller than 0805 package individual parts, no resistor packs all parts except connectors and the crystal are surface mount right-angled shrouded headers for all internal connections to provide sufficient headroom for the jacks and prevent wrong hookups by the user
Partitioned Voltage and Ground Planes
The CRD4622-6 is partitioned into a digital and an analog section. Correspondingly, the ground plane is partitioned to keep digital and analog ground currents from crossing. Ground currents from digital signals are inherently noisy with respect to analog signals and should be isolated from the audio section. The first rule in laying out mixed signal PCB's is to keep all digital signals over the digital ground plane and all analog signals over the analog ground plane. When digital and analog signals cross
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
DS293RD6B1
7
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design planes, they introduce noise into the audio section, reducing performance. The pinout of the CS4297 allows the ground split to completely separate digital signals on one side and analog signals on the other. This split is located very close to the CS4297 so analog and digital ground return currents originating from the CS4297 may flow through their respective ground planes. A bridge is made across the split to maintain the proper reference potential for each ground plane. A separate chassis ground is also used for EMC purposes. All of the components that are placed for EMC compliance are referenced to this plane. The chassis ground plane is connected to the analog ground plane at the external jacks.
REFERENCES
1) Intel, Audio Codec `97 Component Specification, Revision 1.03, September 15, 1996. http://developer.intel.com/pc-supp/ platform/ac97/ 2) PCI Special Interest Group, PCI Local Bus Specification, Revision 2.1, June 1, 1995. http://www.pcisig.com/ 3) Cirrus Logic, CS4622/24 SoundFusion PCI Audio Accelerator Data Sheet, July 1998. http://www.cirrus.com/products/overviews/ cs4622.html 4) Cirrus Logic, CS4297 SoundFusion Audio Codec `97 Data Sheet, July 1998. http://www.cirrus.com/products/overviews/ cs4297.html 5) Steve Harris, Clif Sanchez, Personal Computer Audio Quality Measurements, Ver 0.5 http://www.cirrus.com/products/papers/ meas/meas.html 6) Microsoft, PC Design Guidelines http://www.microsoft.com/hwdev/desguid/ 7) M. Montrose. Printed Circuit Board Design Techniques for EMC Compliance, IEEE Press, New York: 1996.
CS4297 Layout Notes
Please refer to the CS4297 Data Sheet [4] on how the area under the chip should be partitioned and how the bypass capacitors should be placed. Pay close attention to the suggestions for the bypass capacitors on REFFLT, AFLT1, AFLT2, and the power supply capacitors. The pinout of the CS4297 is designed to keep digital and analog signals from crossing when laying out the board.
ADDENDUM
* * * * Schematic drawings Layout drawings Bracket drawing Bill of materials
SoundFusion and CrystalClear are trademarks of Cirrus Logic, Inc. Sound Blaster is a registered trademark and Sound Blaster Pro is a trademark of Creative Technology Ltd. Dolby and AC-3 are registered trademarks of Dolby Laboratories Licensing Corporation. Intel is a registered trademark of Intel Corporation. Microsoft, Windows, and DirectX are registered trademarks of Microsoft Corporation. All other names are trademarks, registered trademarks, or service marks of their respective companies.
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
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DS293RD6B1
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
Figure 1. Block Diagram
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
DS293RD6B1
9
10
+12VD +5V_PCI +5V_PCI
P1
PCI BUS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62
P2
TRST# +12V TMS TDI +5V(1) INTA# INTC# +5V(2) RSVD(1) +5V(3) RSVD(2) GND(1) GND(2) RSVD(3) RST# +5V(4) GNT# GND(3) PME# AD[30] +3.3V(1) AD[28] AD[26] GND(4) AD[24] IDSEL +3.3V(2) AD[22] AD[20] GND(5) AD[18] AD[16] +3.3V(3) FRAME# GND(6) TRDY# GND(7) STOP# +3.3V(4) SDONE SBO# GND(8) PAR AD[15] +3.3V(5) AD[13] AD[11] GND(9) AD[9] KEY1 KEY2 C/BE[0]# +3.3V(6) AD[6] AD[4] GND(10) AD[2] AD[0] +5V(5) REQ64# +5V(6) +5V(7)
Side A
INTA# AD[31..0] C/BE[3..0]# RST# CLK GNT# REQ# PME# +3.3V_PCI_A
A D 28 A D 26 A D 24 A D 30 A D 31 A D 29 A D 27 A D 25
+3.3V_PCI_B C/BE3
+3.3V_PCI_B
IDSEL
A D 22 A D 20 A D 18 A D 16
A D 23 A D 21 A D 19
+3.3V_PCI_C
A D 17
+3.3V_PCI_C FRAME# TRDY# +3.3V_PCI_E STOP#
C/BE2 IRDY# DEVSEL# PERR# SERR# +3.3V_PCI_E +3.3V_PCI_F +3.3V_PCI_D
PAR +3.3V_PCI_F
A D 15 A D 14 A D 13 A D 11 AD9 AD8 AD7 AD6 AD4 AD2 AD0 AD5 AD3 AD1 A D 12 A D 10
C/BE1
C/BE0
+3.3V_PCI_G
+3.3V_PCI_G
-12V TCK GND11 TDO +5V(8) +5V(9) INTB# INTD# PRSNT1# RSVD(4) PRSNT2# GND(12) GND(13) RSVD(5) GND(14) CLK GND(15) REQ# +5V(10) AD[31] AD[29] GND(16) AD[27] AD[25] +3.3V(7) C/BE[3]# AD[23] GND(17) AD[21] AD[19] +3.3V(8) AD[17] C/BE[2]# GND(18) IRDY# +3.3V(9) DEVSEL# GND(19) LOCK# PERR# +3.3V(10) SERR# +3.3V(11) C/BE[1]# AD[14] GND(20) AD[12] AD[10] GND(21) KEY3 KEY4 AD[8] AD[7] +3.3V(12) AD[5] AD[3] GND(22) AD[1] +5V(11) ACK64# +5V(12) +5V(13)
Side B
TDI and TDO must be connected if IEEE 1149.1 is not used
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
PRSNT1#, PRSNT2# = 00 Power Requirement = 7.5W max PCI Bus +5V_PCI supply. Place near pin 1 of the PCI edge connector. C97 0.1uF Z5U
+5V_PCI
+
C96 10uF ELEC
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
DGND +5V_PCI
PCI Bus +5V_PCI supply. Place near pin 62 of the PCI edge connector. C100 0.1uF Z5U
+
C101 10uF ELEC
DGND
Unused PCI Bus +3.3V supply pins. Must be plated and decoupled according to PCI spec 2.1, chapter 4.4.2.1. Place near PCI edge connector within 1/4" of pin[s]. +3.3V_PCI_A P1.21 C98 0.022uF Z5U +3.3V_PCI_B P1.27/P2.25 C99 0.047uF Z5U +3.3V_PCI_C P1.33/P2.31 C128 0.047uF Z5U +3.3V_PCI_D P2.36 C129 0.022uF Z5U
DGND
DGND
DGND
DGND
+3.3V_PCI_E P1.39/P2.41 C130 0.047uF Z5U
+3.3V_PCI_F P1.45/P2.43 C131 0.047uF Z5U
+3.3V_PCI_G P1.55/P2.54 C132 0.047uF Z5U
DGND
DGND
DGND
PCI BUS 5V A
DGND DGND
PCI BUS 5V B
CRD4622-6
DS293RD6B1
Figure 2. PCI Bus
U6 1 C102 0.1uF Z5U
+
4
2
1
DS293RD6B1
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CRD4622-6
POWER SUPPLIES
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
+5V_PCI +12VD +5VA +5V_PCI +3.3VD
U7 2
+
IN GND
OUT
3
+
3 C104 10uF ELEC C105 0.01uF X7R
+
TAB (OUT) IN OUT GND
L9 31@100MHz C107 100uF ELEC C108 0.1uF Z5U F1
+5V_JOY
C103 10uF ELEC
MC78M05ACDT
C106 10uF ELEC
LT1117CST-3.3
FUSE 0.5A
DGND
AGND
DGND
Connect AGND to DGND with a 50 mil trace near the 4297 Connect CGND to DGND with a 50 mil trace near the finger edge of the board.
HOLE
H1
CGND
Figure 3. Power Supplies
11
12
optional hardware volume control -- do not populate unless otherwise specified
+3.3VD
CS4622 AUDIO ACCELERATOR
U4 CS4622 AD[0] AD[1] AD[2] AD[3] AD[4] AD[5] AD[6] AD[7] AD[8] AD[9] AD[10] AD[11] AD[12] AD[13] AD[14] AD[15] AD[16] AD[17] AD[18] AD[19] AD[20] AD[21] AD[22] AD[23] AD[24] AD[25] AD[26] AD[27] AD[28] AD[29] AD[30] AD[31] CBE[0]# CBE[1]# CBE[2]# CBE[3]# CRYVDD CRYGND CGND[0] CGND[1] CGND[2] CGND[3] CGND[4] PCIGND[0] PCIGND[1] PCIGND[2] PCIGND[3] PCIGND[4] PCIGND[5] PCIGND[6] PCIGND[7] ZLRCLK ZSCLK ZSDATA SPDIFI SPDIFO 56 A D 0 55 A D 1 54 A D 2 53 A D 3 52 A D 4 51 A D 5 50 A D 6 49 A D 7 45 A D 8 44 A D 9 43 A D 10 42 A D 11 41 A D 12 40 A D 13 37 A D 14 36 A D 15 11 A D 16 10 A D 17 A D 18 9 A D 19 6 A D 20 5 A D 21 4 A D 22 3 A D 23 2 125 A D 24 124 A D 25 123 A D 26 120 A D 27 119 A D 28 118 A D 29 117 A D 3 0 116 A D 3 1 ABITCLK ASDOUT ASDIN ASYNC ARST# JACX JACY JBCX JBCY JAB1 JAB2 JBB1 JBB2 R59 10K MIDIIN MIDIOUT VOLUP VOLDN EECLK EEDATA R60 10K R53 47 R54 47 96 97 98 99 100 66 67 68 69 70 71 72 73 74 77 88 92 93 101 102 65 108 109 110 111 112 113 15 24 25 28 31 32 33 34 127 95 ABITCLK/SCLK ASDOUT/SDOUT ASDIN/SDIN ASYNC/FSYNC ARST# JACX JACY JBCX JBCY JAB1/SDO2 JAB2/SDO3 JBB1/LRCLK JBB2/MCLK MIDIIN MIDIOUT SDIN2/GPIO VOLUP/XTALI VOLDN/XTALO EECLK/PCREQ# EEDAT/PCGNT# TEST PME# INTA# RST# PCICLK PCI_GNT# PCI_REQ# FRAME# IRDY# TRDY# DEVSEL# STOP# PERR# SERR# PAR IDSEL VDD5REF CVDD[0] CVDD[1] CVDD[2] CVDD[3] CVDD[4] PCIVDD[0] PCIVDD[1] PCIVDD[2] PCIVDD[3] PCIVDD[4] PCIVDD[5] PCIVDD[6] PCIVDD[7] EEPDIS ABITCLK2 ASDOUT2 ASDIN2 ASYNC2 ARST2# NC[0] NC[1] NC[2] NC[3] NC[4] NC[5] NC[6]
CS4622 CVDD PINS
+3.3VD +3.3VD +3.3VD
Volume Control J7
PIN 12 C77 0.1uF Z5U
PIN 27 C78 0.1uF Z5U
PIN 75 C79 0.1uF Z5U
U G
4 3
R55 4.7K
R56 4.7K
DGND +3.3VD
DGND +3.3VD
DGND
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
R57 100
G D
2 R58 100 1
+3.3VD
PIN 78 C80 0.1uF Z5U
AD[31..0]
PIN 90 C81 0.1uF Z5U
4X1HDR-SN/PB C82 100pF NPO C83 100pF NPO
DGND
DGND
DGND +3.3VD
DGND
U5 1 2 3 4 A0 VCC A1 WP A2 SLC VSS SDA AT24C04 8 7 6 5
R61 4.7K
DGND
C84 0.01uF X7R
+5V_PCI
DGND DGND
PME# INTA# RST# CLK GNT# REQ# FRAME# IRDY# TRDY# DEVSEL# STOP# PERR# SERR# PAR IDSEL
AD[31..0] C/BE[3..0]#
+3.3VD
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
46 C/BE0 35 C/BE1 14 C/BE2 126 C/BE3 91 94 26 13 76 79 89 115 121 1 7 30 38 48 57 80 81 82 83 84 85 86 87 103 104 105 106 63 64 R65 10K SPDIFI SPDIFO C85 1000pF X7R
L8 120@100MHz
+3.3VD
C87 0.1uF Z5U
27 12 75 78 90 114 122 128 8 29 39 47 58
C86 0.1uF Z5U
DGND
DGND
CS4622 PCIVDD PINS
+3.3VD +3.3VD +3.3VD +3.3VD
DGND
R62 10K PIN 8 C88 0.1uF Z5U PIN 29 C89 0.1uF Z5U PIN 39 C90 0.1uF Z5U PIN 47 C91 0.1uF Z5U 23
DGND
R63 10K
59 60 107 61 62 16 17 18 19 20 21 22
DGND
DGND +3.3VD
DGND +3.3VD
DGND +3.3VD
DGND +3.3VD
PIN 58 C92 0.1uF Z5U
PIN 114 C93 0.1uF Z5U
PIN 122 C94 0.1uF Z5U
PIN 128 C95 0.1uF Z5U
EGPIO[0] EGPIO[1] EGPIO[2] EGPIO[3]/ASCLK EGPIO[4]/ASFCLK EGPIO[5]/ASDI EGPIO[6]/ASDO EGPIO[7] EGPIO[8]
R64 10K
DGND DGND DGND DGND
CRD4622-6
DS293RD6B1
DGND
DGND
Figure 4. CS4622
16
C44 5600pF X7R
C45 5600pF X7R
C46 5600pF X7R
C47 5600pF X7R
C48 1000pF X7R
C49 1000pF X7R
C50 1000pF X7R
C51 1000pF X7R
C54 100pF NPO
C55 100pF NPO
C56 100pF NPO
C57 100pF NPO
C58 100pF NPO
C61 100pF NPO
DGND
CGND
CGND
CGND
R37 100
populate instead of MIDI out buffer as necessary
J5 JOYSTICK SUPPLY PINS
+5V_JOY +5V_JOY
+3.3VD +5V_PCI
R38 39K 2
PIN 1 C62 0.1uF Z5U Q1 MMBT2907ALT1 R40 5.1K
PIN 1 C63 1000pF X7R
PIN 8 C64 0.1uF Z5U
PIN 8 C65 1000pF X7R
R39 39K 1
CGND CGND
3
3
R41 10K 1
MIDI_BUF
Q2 MMBT3904LT1 2
R42 20K
DGND
DGND
optional MIDI out buffer -- populate as necessary
Figure 5. MIDI/Joystick Interface
17
DS293RD6B1
JACX JBCX JBCY JACY R28 R29 R30 R36 2.2K 2.2K 2.2K 2.2K JAB1 JBB1 JBB2 JAB2
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CRD4622-6
Joystick button pullups still required on Inky -- must be populated
+5V_PCI +5V_JOY
R31 4.7K
R32 4.7K
R33 4.7K
R34 4.7K
R35 47K 1 9 2 10 3 11 4 12 5 13 6 14 7 15 8
CGND
J3 DB15
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
MIDIIN MIDIOUT
13
DRIVER_OUT
IEC_958_TX
14
+5V_PCI
U1 SPDIF_RX SPDIF_TX 2 3 R D
SN75179B A B Y Z 8 7 5 6 DRIVER_IN DRVR_B C1 0.01uF X7R 3 C2 0.01uF X7R R1 75 1/4W 2 1
DGND
J1 IEC_958_RX 4
IN IN SHLD OUT SHLD OUT
4X1HDR-SN/PB
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
DGND DGND +5V_PCI
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
R85 10K
C3 0.1uF Z5U
R2
374
T1 T1 R3 90.9 1 5
4 29398
8
DGND
DGND
populate instead of S/PDIF I/O as necessary
place close to pins 1 and 4
DGND
optional coaxial (RS422A) S/PDIF input/output -- populate as necessary
J2 5
+5V_PCI
4 3 R4 8.2K 2 1 6 TOTX-173
DGND DGND
C4 0.1uF Z5U
CRD4622-6
DGND
DS293RD6B1
Figure 6. S/PDIF Interface
DS293RD6B1
+3.3VD
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CRD4622-6
place close to pins 9 and 7
+
C20 10uF ELEC
If the 10uF capacitor for the +5V analog regulator is far from the CS4297 another 10uF electrolytic capacitor should be connected between pins 25 and 26 of the CS4297.
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
DGND
+3.3VD
+5VA
C21 0.1uF Z5U
C22 0.1uF Z5U
C23 0.1uF Z5U
C24 0.1uF Z5U
+3.3VD +5VA DGND AGND
U2 25 38 AVdd1 AVdd2 DVdd1 DVdd2 XTL_IN XTL_OUT SDATA_IN SYNC RESET# PC_BEEP PHONE AUX_L AUX_R VIDEO_L VIDEO_R CD_L CD_GND CD_R MIC1 MIC2 LINE_IN_L LINE_IN_R REFFLT Vrefout AFLT1 AFLT2
CS4297 AVss1 AVss2 DVss1 DVss2 26 42 4 7
layout Y1 on top of Y2 -- populate only one XTAL
1 9 2 3 R20 47 ASDIN ASYNC ARST# PHONE_IN AUX_L AUX_R VIDEO_L VIDEO_R CD_INL CD_COM CD_INR MIC1 LINE_INL LINE_INR 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 27 28 29 30 C32 1uF Y5V C33 0.1uF Z5U C34 1uF Y5V C35 0.1uF Z5U C36 390pF NPO C37 390pF NPO
DGND
AGND
Y1 24.576 MHz Y2 24.576 MHz C25 22pF NPO
DGND
R21 47 BIT_CLK SDATA_OUT LINE_OUT_L LINE_OUT_R MONO_OUT ALT_LINE_OUT_L ALT_LINE_OUT_R NC1 NC2 NC3 NC4 NC5 NC6 NC7 NC8 NC9 NC10 NC11 6 5 35 36 37 39 41 31 32 33 34 40 43 44 45 46 47 48 C29 680pF NPO C27 680pF NPO C28 680pF NPO ABITCLK ASDOUT LINE_OUTL LINE_OUTR
C26 22pF NPO
DGND
AGND AGND
MONO_OUT ALT_LINE_OUTL ALT_LINE_OUTR
VREF
C30 680pF NPO
C31 680pF NPO
AGND
AGND
Figure 7. CS4297
15
8
4
+
+
8
4
LINE_OUTR
+
LINE_OUTL
+
16
+5VA +5VA
U3A 1 TDA1308
AGND
23+
place close to pins 8 and 4
C66 0.1uF Z5U
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
R43 27K ALT_LINE_OUTR
AGND
R44 39K C68 22pF NPO
C67 220uF ELEC
R45 1/4W
10 J4 4 10 2 1 HEADPHONE JACK
C69 220uF ELEC R47 27K ALT_LINE_OUTL R48 39K C70 22pF NPO R49 47K R50 47K
R46 1/4W
PHONO-1/8
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
C71 390pF NPO
C72 390pF NPO
AGND
Connect CGND to AGND at the jack
+5VA
J5 4
AGND CGND
R GND GND L 4X1HDR
INTERNAL LINE OUT
U3B 7
3 2
6VREF 5+
TDA1308
1
optional internal line out -- do not populate unless otherwise specified
AGND
AGND
C73 10uF ELEC 4 3 5 2 1 PHONO-1/8 R51 1M R52 1M Connect CGND to AGND at the jack J6 LINE OUT JACK
C74 10uF ELEC
C75 390pF NPO
C76 390pF NPO
AGND
AGND
CGND
CRD4622-6
DS293RD6B1
Figure 8. Analog Outputs
DS293RD6B1
AUX Right Line Right J9 4 3 2 1 4X1HDR-AU INPUT_DIVIDER_AGND
AGND
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CRD4622-6
AUX IN
J8
R GND GND L
ANALOG_IN
ANALOG_OUT
AUX_R
LINE IN
PHONO-1/8
INPUT_DIVIDER_AGND AUX Left ANALOG_IN ANALOG_OUT AUX_L
4 3 5 2 1
ANALOG_IN
ANALOG_OUT
LINE_INR
INPUT_DIVIDER_CGND Line Left ANALOG_IN
AGND
Connect CGND to AGND at the jack
ANALOG_OUT
LINE_INL
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
INPUT_DIVIDER_CGND
Video Right
VIDEO IN
J10
J11 4 3 2 1 ANALOG_IN ANALOG_OUT VIDEO_R
MIC1 Preamp 4 5 2 1 MIC_BIAS MIC_IN MIC_PREAMP C109 100pF NPO C110 100pF NPO VREF MIC_OUT VREF MIC1
R GND GND L
MIC1 IN
PHONO-1/8
INPUT_DIVIDER_AGND Video Left ANALOG_IN ANALOG_OUT VIDEO_L
4X1HDR-AU INPUT_DIVIDER_AGND
AGND
Connect CGND to AGND at the jack
AGND
CGND
CD Right
CD IN
J12
R GND GND L
J14
4 3 2 1 4X1HDR-AU
ANALOG_IN
ANALOG_OUT
CD_INR
INTERNAL MODEM CONNECTION
J13 PHONE IN GND 4 R66 3 Y5V GND 2 1 4X1HDR-AU C113 100pF NPO C114 100pF NPO R67 47K R68 47K 0 Y5V C112 1uF C111 1uF PHONE_IN MONO_OUT
INPUT_DIVIDER_AGND CD Common CD_COM_IN INPUT_CD_COMMON CD Left CD_COM_OUT CD_COM
MONO OUT ANALOG_OUT
Mitsumi pinout
R GND L GND
1 2 3 4
ANALOG_IN
CD_INL
INPUT_DIVIDER_AGND
AGND AGND AGND AGND
B4B-PH-K J15 Panasonic pinout
GND L GND R
1 2 3 4
B4B-PH-K legacy CD audio connectors -- do not populate unless otherwise specified
Figure 9. Analog Inputs
17
18
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
L6 CD_COM_IN 31@100MHz R23 C40 100pF NPO 0 R24 3.4K C39 1uF Y5V R22 3.4K C38 1uF Y5V CD_COM_OUT
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
optional second cap to improve low end frequency response
AGND AGND
input lowpass -- choose either the cap or the inductor to filter the input -- when not using the inductor place the resistor instead -- the inductor seems to be preferred on PC internal connections while the cap seems to be preferred on external jacks
CRD4622-6
DS293RD6B1
Figure 10. Input Divider CD Common
DS293RD6B1
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
L1 ANALOG_IN 31@100MHz R6 C7 100pF NPO 0 R7 6.8K C6 1uF Y5V optional second cap to improve low end frequency response
AGND AGND
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CRD4622-6
R5
6.8K
C5
1uF Y5V ANALOG_OUT
input lowpass -- choose either the cap or the inductor to filter the input -- when not using the inductor place the resistor instead -- the inductor seems to be preferred on PC internal connections while the cap seems to be preferred on external jacks
Figure 11. Input Divider AGND (only one path shown)
19
20
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
L3 ANALOG_IN 31@100MHz R12 C13 100pF NPO 0 R13 6.8K C12 1uF Y5V R11 6.8K C11 1uF Y5V ANALOG_OUT
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
optional second cap to improve low end frequency response
CGND AGND
input lowpass -- choose either the cap or the inductor to filter the input -- when not using the inductor place the resistor instead -- the inductor seems to be preferred on PC internal connections while the cap seems to be preferred on external jacks
CRD4622-6
DS293RD6B1
Figure 12. Input Divider CGND (only one path shown)
8
4
MIC_IN
X7R
8
AGND
C124 220pF
AGND
R81 47K
Figure 13. Mic Pre-amp and Bias
4
DS293RD6B1
+5VA
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CRD4622-6
+5VA
R72 47K U8A
+ +5VA
MC33078D 3 2
+
1
place close to pins 8 and 4 C119 10uF ELEC
AGND
C118 0.1uF Z5U
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
R73 68K
R74 47K
AGND
AGND AGND
R75 100K R76 47K
AGND
R77 47K VREF for development and debug only -- do not populate on final design
+5VA
R78 47 C120 100pF NPO
R79 2.7K MIC_BIAS C121 0.33uF
AGND
U8B MC33078D C122 0.33uF 7 X7R MIC_OUT 5+ 6+
R80 6.8K
C123 3.3uF ELEC
NPO
21
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
22
DS293RD6B1
Figure 14. Assembly Drawing
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
DS293RD6B1
Figure 15. Top Layer
23
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
24
DS293RD6B1
Figure 16. Bottom Layer
CRD4622-6
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
DS293RD6B1
Figure 17. Bracket Drawing
25
BILL OF MATERIALS
CRD4622-6 Revised: Friday, May 29, 1998 Revision: B1C (EMC optimized) Bill Of Materials
Item Quantity
1 2 4 31
26 CIRRUS LOGIC ADVANCED PRODUCT DATABOOK DS293RD6B1
May 29,1998
Value
0.01uF 0.1uF
16:32:20
Type
X7R Z5U
Reference
C1,C2,C84,C105 C3,C4,C21,C22, C23,C24,C33,C35, C62,C64,C66,C77, C88,C89,C90,C91, C92,C93,C94,C95, C97,C100,C102, C108,C118 C5,C6,C8,C9,C11, C12,C14,C15,C17, C18,C32,C34,C38, C39,C41,C42, C111,C112,C115, C116,C125,C126 C7,C10,C13,C16, C19,C40,C43,C54, C55,C56,C57,C58, C61,C82,C83, C109,C110,C113, C114,C117,C120, C127 C20,C73,C74,C96, C101,C103,C104, C106,C119 C25,C26,C68,C70 C27,C28,C29,C30, C31 C36,C37,C71,C72, C75,C76 C44,C45,C46,C47 C48,C49,C50,C51, C63,C65,C85 C67,C69 C98,C129 C99,C128,C130, C131,C132 C107 C121,C122 C123
PCB Footprint
CSN_0805 CSN_0805
Manufacturer
KEMET KEMET
Part Number
Description
C0805C103K5RAC CAP, 0805, X7R, .01uF, 10%, 50V C0805C104M5UAC CAP, 0805, Z5U, .1uF, 20%, 50V
3
22
1uF
Y5V
CSN_1206
PHILIPS
12062F105M8BB0
CAP, 1206, Y5V, 1uF, 20%, 25V
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
4
22
100pF
NPO
CSN_0805
KEMET
C0805C101J5GAC CAP, 0805, COG, 100pF, 5%, 50V
5
9
10uF
ELEC
CSP_ELEC_170SQ
PANASONIC
ECE-V1CA100R
CAP, SMT B, ELEC, 10uF, 20%, 16V
6 7 8 9 10 11 12 13 14 15 16
4 5 6 4 7 2 2 5 1 2 1
22pF 680pF 390pF 5600pF 1000pF 220uF 0.022uF 0.047uF 100uF 0.33uF 3.3uF
NPO NPO NPO X7R X7R ELEC Z5U Z5U ELEC X7R ELEC
CSN_0805 CSN_0805 CSN_0805 CSN_0805 CSN_0805 CSP_ELEC_260SQ CSN_0805 CSN_0805 CSP_ELEC_260SQ CSN_1210 CSP_ELEC_170SQ
KEMET KEMET KEMET KEMET KEMET PANASONIC KEMET KEMET PANASONIC KEMET PANASONIC
C0805C220J5GAC CAP, 0805, COG, 22pF, 5%, 50V C0805C681J5GAC CAP, 0805, COG, 680pF, 5%, 50V C0805C391J5GAC CAP, 0805, COG, 390pF, 5%, 50V C0805C562K5RAC CAP, 0805, X7R, 5600pF, 10%, 50V C0805C102K5RAC CAP, 0805, X7R, 1000pF, 10%, 50V ECE-V0GA221P CAP, SMT D, ELEC, 220uF, 20%, 4V C0805C223M5UAC CAP, 0805, Z5U, .022uF, 20%, 50V C0805C473M5UAC CAP, 0805, Z5U, .047uF, 20%, 50V ECE-V0JA101P CAP, SMT D, ELEC, 100uF, 20%, 6.3V C1210C334K5RAC CAP, 1210, X7R, .33uF, 10%, 50V ECE-V1HA3R3R CAP, SMT B, ELEC, 3.3uF, 20%, 50V
CRD4622-6
DS293RD6B1 CIRRUS LOGIC ADVANCED PRODUCT DATABOOK 27
Bill Of Materials
Item Quantity
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 1 1 1 2 1 1 1 1 2 4 1 2 10 1 1 1 1 1 1 1 1 1 16
May 29,1998
Value
16:32:20 (continued)
Type
NPO PPTC
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
CRD4622-6
Reference
PCB Footprint
Manufacturer
Part Number
Description
CAP, 0805, COG, 220pF, 5%, 50V FUSE, SMT, 0.5A hold, 1.0A trip HDR, 4X1, 0.025" PIN, 0.1" CTR, 150u" SN/PB CONN, OPTICAL TOSLINK TRANSMITTER CONN, 15D SHELL, FEMALE, RT ANGLE PC MOUNT CONN, 1/8" NON-SW. STEREO PHONE JACK HDR, 4X1, 0.025" PIN, 0.1" CTR CONN, 1/8" DOUBLE SW. STEREO PHONE JACK HDR, 4X1, 0.025" PIN, 0.1" CTR, 15u" AU CONN, 1/8" SINGLE SW. STEREO PHONE JACK HDR, 4 PIN SHROUDED, .08" IND, FBEAD, 1206, 31@100MHz, 25%
40
10
41 42 43 44 45
5 2 4 7 10
46 47 48
3 4 1
C124 220pF F1 FUSE 0.5A H1 HOLE J1,J7 4X1HDR-SN/PB J2 TOTX-173 J3 DB15 J4 PHONO-1/8 J5 4X1HDR J6,J9 PHONO-1/8 J8,J10,J12,J13 4X1HDR-AU J11 PHONO-1/8 J14,J15 B4B-PH-K L1,L2,L3,L4,L5,L6, 31@100MHz L7,L9,L10,L11 L8 120@100MHz P1 PCI BUS 5V A P2 PCI BUS 5V B Q1 MMBT2907ALT1 Q2 MMBT3904LT1 R1 75 R2 374 R3 90.9 R4 8.2K 6.8K R5,R7,R8,R10, R11,R13,R14,R16, R17,R19,R25,R27, R69,R71,R82,R84 R6,R9,R12,R15, 0 R18,R23,R26,R66, R70,R83 R20,R21,R53,R54, 47 R78 R24,R22 3.4K R28,R29,R30,R36 2.2K R31,R32,R33,R34, 4.7K R55,R56,R61 R35,R49,R50,R67, 47K R68,R72,R74,R76, R77,R81 R37,R57,R58 100 R38,R39,R44,R48 39K R40 5.1K
CSN_0805 KEMET C0805C221J5GAC FUSE_MINISMD050 RAYCHEM miniSMD050-2 HOLE CON_MLX_70553 MOLEX 70553-0038 TOTX173 TOSHIBA TOTX173 CON_DA15F_RA AMP 747845-3 SJ373 CON_STEREO_LZR LZR ELECTRONICS HDR4X1 SAMTEC TSW-104-07-G-S SJ372 CON_STEREO_LZR LZR ELECTRONICS CON_MLX_70553 MOLEX 70553-0003 SJ374 CON_STEREO_LZR LZR ELECTRONICS HDR4X1_080 JST B4B-PH-K FERRITE IND_FB1206 TDK HF50ACB321611-T FERRITE IND_FB1812 PCI_BUS_5V_A PCI_BUS_5V_B SOT23 SOT23 RES_1206 RES_0805 RES_0805 RES_0805 RES_0805 TDK
1/4W
NATIONAL NATIONAL PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS
HF30ACB453215-T IND, FBEAD, 1812, 120@100MHz, 25% PCI BUS 5V SIDE A PCI BUS 5V SIDE B MMBT2907ALT1 TRAN, SO, PNP, SOT23 MMBT3904LT1 TRAN, SO, NPN, SOT23 9C12063A75R0J RES, SO, 1206, 75, 5%, 1/4W, METAL FILM 9C08052A3740F RES, SO, 0805, 374, 1%, 1/10W, METAL FILM 9C08052A90R9F RES, SO, 0805, 90.9, 1%, 1/10W, METAL FILM 9C08052A8201J RES, SO, 0805, 8.2K, 5%, 1/10W, METAL FILM 9C08052A6801F RES, SO, 0805, 6.8K, 1%, 1/10W, METAL FILM
RES_0805
PHILIPS
9C08052A0R00J
RES, SO, 0805, 0, 5%, 1/10W, METAL FILM
RES_0805 RES_0805 RES_0805 RES_0805 RES_0805
PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS
9C08052A47R0J 9C08052A3401F 9C08052A2201J 9C08052A4701J 9C08052A4702J
RES, SO, 0805, 47, 5%, 1/10W, METAL FILM RES, SO, 0805, 3.4K, 1%, 1/10W, METAL FILM RES, SO, 0805, 2.2K, 5%, 1/10W, METAL FILM RES, SO, 0805, 4.7K, 5%, 1/10W, METAL FILM RES, SO, 0805, 47K, 5%, 1/10W, METAL FILM
RES_0805 RES_0805 RES_0805
PHILIPS PHILIPS PHILIPS
9C08052A1000J 9C08052A3902J 9C08052A5101J
RES, SO, 0805, 100, 5%, 1/10W, METAL FILM RES, SO, 0805, 39K, 5%, 1/10W, METAL FILM RES, SO, 0805, 5.1K, 5%, 1/10W, METAL FILM
Bill Of Materials
Item Quantity
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 8 1 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
May 29,1998
Value
10K
16:32:20 (continued)
Type PCB Footprint
RES_0805 RES_0805 RES_0805 RES_1206 RES_0805 RES_0805 RES_0805 RES_0805 RES_0805 XFR_SCT_29398 SO8 QFP48_7X7 SO8 QFP128_14X20 SO8 DPAK SOT223 SO8 XTL_HC49S XTL_CA301
28 CIRRUS LOGIC ADVANCED PRODUCT DATABOOK DS293RD6B1
Reference
R41,R59,R60,R62, R63,R64,R65,R85 R42 R43,R47 R45,R46 R51,R52 R73 R75 R79 R80 T1 U1 U2 U3 U4 U5 U6 U7 U8 Y1 Y2
Manufacturer
PHILIPS
Part Number
9C08052A1002J
Description
RES, SO, 0805, 10K, 5%, 1/10W, METAL FILM
20K 27K 10 1M 68K 100K 2.7K 6.8K 29398 SN75179B CS4297 TDA1308 CS4622 AT24C04 MC78M05ACDT LT1117CST-3.3 MC33078D 24.576 MHz 24.576 MHz
1/4W
512X8BIT
PAR RES, FUND PAR RES, FUND NPO FERRITE
PHILIPS 9C08052A2002J RES, SO, 0805, 20K, 5%, 1/10W, METAL FILM PHILIPS 9C08052A2702J RES, SO, 0805, 27K, 5%, 1/10W, METAL FILM PHILIPS 9C12063A10R0J RES, SO, 1206, 10, 5%, 1/4W, METAL FILM PHILIPS 9C08052A1004J RES, SO, 0805, 1M, 5%, 1/10W, METAL FILM PHILIPS 9C08052A6802J RES, SO, 0805, 68K, 5%, 1/10W, METAL FILM PHILIPS 9C08052A1003J RES, SO, 0805, 100K, 5%, 1/10W, METAL FILM PHILIPS 9C08052A2701J RES, SO, 0805, 2.7K, 5%, 1/10W, METAL FILM PHILIPS 9C08052A6801J RES, SO, 0805, 6.8K, 5%, 1/10W, METAL FILM SCHOTT CORP 29398 DIGITAL AUDIO TRANSFORMER, SMT, 1 TO 10 MHZ TI SN75179B IC, SO, SOIC8, DIFF. DRIVER/RECEIVER PAIR CRYSTAL CS4297-KQ IC, SO, AC '97 SERIAL CODEC PHILIPS TDA1308T IC, SO, SOIC8, 1308, LOW NOISE HEADPHONE AMP CRYSTAL CS4622-CQ IC, SO, PCI Audio Accelerator ATMEL AT24C04N-10SC-2.7 IC, SO, SOIC8, EEPROM, 24C04, 512X8BIT, 2.7V MOTOROLA MC78M05ACDT IC, SO, +5V REGULATOR, DPAK, 2%, 500mA LINEAR TECH LT1117CST-3.3 IC, SO, +3.3V REGULATOR, SOT-223, 0.2%, 800mA MOTOROLA MC33078D IC, SO, SOIC8, 33078, DUAL OP AMP FOX FS24.576 XTAL, 24.576MHz, HC49S, Fund Mode, Par Res EPSON CA-301_24.576M-C XTAL, 24.576MHz, CA-301, Fund Mode, Par Res
CrystalClearTM AC '97 PCI Audio Adapter Reference Design
4 29 40 45 46 49 68
7 2 7 1 1 1 1
C7,C10,C16,C19, C40,C43,C117 L3,L11 R6,R9,R15,R18, R23,R26,R70 R77 R37 R85 Y2
100pF 31@100MHz 0 47K 100 10K 24.576 MHz
do not populate the following items: CSN_0805 KEMET C0805C101J5GAC CAP, 0805, COG, 100pF, 5%, 50V IND_FB1206 RES_0805 RES_0805 RES_0805 RES_0805 XTL_CA301 TDK PHILIPS PHILIPS PHILIPS PHILIPS EPSON HF50ACB321611-T IND, FBEAD, 1206, 31@100MHz, 25% 9C08052A0R00J RES, SO, 0805, 0, 5%, 1/10W, METAL FILM 9C08052A4702J 9C08052A1000J 9C08052A1002J CA-301_24.576M-C RES, SO, 0805, 47K, 5%, 1/10W, METAL FILM RES, SO, 0805, 100, 5%, 1/10W, METAL FILM RES, SO, 0805, 10K, 5%, 1/10W, METAL FILM XTAL, 24.576MHz, CA-301, Fund Mode, Par Res
PAR RES, FUND
CRD4622-6
* Notes *


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