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ASAHI KASEI
[AKD4708-A]
AKD4708-A
AK4708 Evaluation Board Rev.0
GENERAL DESCRIPTION AKD4708 is an evaluation board for quickly evaluating the AK4708, AV SCART switch. Evaluation requires audio/video analog analyzers/generators and a power supply. Ordering guide
AKD4708-A --AK4708 Evaluation Board (Cable for connecting with printer port of IBM-AT, compatible PC and control software are packed with this.)
FUNCTION * BNC connectors for analog audio input/output * BNC connectors for analog video input/output * 10pin header for serial control interface
VP VD VVD AGND TVOUTL TVOUTR VCROUTL VCROUTR
TVINL TVINR VCRINL VCRINR AINL+ AINL (AINL+-) AINRAINR (AINR+-) VCRFB ENCB ENCC ENCG ENCV ENCY ENCRC
AK4708
TVFB TVSB VCRSB TVVOUT TVB TVG TVRC VCRVOUT
TVVIN VCRVIN VCRB VCRG VCRRC
VCRC VCRGO VCRBO VCRFBO
Figure 1. AKD4708 Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual.
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2007/01
ASAHI KASEI
[AKD4708-A]
EVALUATION BOARD MANUAL Operation sequence
1) Set up the power supply lines. [VP] (Orange) = 11.4 12.6V (typ. 12V, for VP pin) [VD] (Red) = 4.75 5.25V (typ. 5.0V, for VD pin) [VVD] (Red) = 4.75 5.25V (typ. 5.0V, for VVD1 pin, VVD2 pin) [VCC] (Red) = 5.0V (for digital logic) [AGND] (Black) = 0V (for analog ground: VSS, VVSS) [DGND] (Black) = 0V (for digital ground) Each supply line should be distributed from the power supply unit. 2) Set-up jumper pins. (See the followings.) 3) Power on. The AK4708 should be reset once bringing SW1 "L" upon power-up.
Jumper pins set up
[JP1] (GND): Analog ground and Digital ground OPEN: Separated SHORT: Common. (The connector "DGND" can be open.) [JP2] (VD): Regulator +5V or VD connector OPEN: VD pin is supplied from VD connector. SHORT: VD pin is supplied to regulator +5V. (The connector "VD" can be open.) [JP3] (VVD): VD connector or VVD connector OPEN: VVD1 and VVD2 pins are supplied from VVD connector. SHORT: VVD1 and VVD2 pins are supplied from VD connector. (The connector "VVD" can be open.) [JP4] (VCC): VVD connector or VCC connector OPEN: Logic voltage is supplied from VCC connector. SHORT: Logic voltage is supplied form VVD connector. (The connector "VCC" can be open.) The regulator can be supplied 5.0V to all circuits by shorting JP2, JP3 and JP4 and supplying 12V to VP connector. [JP6] (VCRRC): VCRRC pin input select I: J16 (VCRRC) I/O: J36 (VCRCOUT) [JP7] (VCRG): VCRG pin input select I: J13 (VCRG) I/O: J37 (VCRGOUT) [JP8] (VCRB): VCRB pin input select I: J9 (VCRB) I/O: J38 (VCRBOUT) [JP9] (VCRFB): VCRFB pin input select I: J10 (VCRFB) I/O: J39 (VCRFBOUT)
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2007/01
ASAHI KASEI
[AKD4708-A]
[JP10] (GND): AINL- pin input select OPEN: J14 (AINL): 3pin SHORT: GND (Not use) [JP11] (GND): AINR- pin input select OPEN: J18 (AINR): 3pin SHORT: GND (Not use)
The function of the toggle SW
[SW1] (PDN): Resets the AK4708. Keep "H" during normal operation.
The indication content for INT pin
Changes of the 08H status can be monitored via the TEST1 (INT). The INT pin is the open drain output and goes "L" for 2s (typ.) when the status of 08H is changed.
Serial Control
The AK4708 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT1 (CTRL) with PC by 10-line flat cable packed with the AKD4708-A. The control software packed with this evaluation board supports I2C control only.
Connect PC
SCL SDA ACK
AKD4708-A
10 wire flat cable
10pin Connector
10pin Header
Figure 2. Connect of 10-line flat cable
Analog Input/Output List
Signal Name J1 (TVINL), J4 (TVINR), J7 (VCRINL), J11 (VCRINR) J14 (AINL+, AINL-), J18 (AINR+, AINR-), J34 (AINL-), J35 (AINR-) J24 (TVOUTL), J27 (TVOUTR), J30 (VCROUTL), J32 (VCROUTR) J2 (ENCB), J5 (ENCC), J8 (ENCG), J12 (ENCV), J15 (ENCY) J17 (ENCRC), J3 (TVVIN), J6 (VCRVIN), J9 (VCRB) J13 (VCRG), J16 (VCRRC) J19 (TVVOUT), J20 (TVB), J23 (TVG), J26 (TVRC) J29 (VCRVOUT), Jxx (VCRC), Jxx (VCRGO), Jxx (VCRBO) J25 (VCRSB) J22 (TVSB), J25 (VCRSB) J10 (VCRFB) J28 (TVFB), Jxx (VCRFBO) Table 1. Analog Input/Output List Note Max. 2Vrms Max. 2Vrms Max. 2.15Vrms Max. 1.5Vpp Max. 3.0Vpp Max. VP+0.3V Max. VP Max. VVD1+0.3V Max. VVD2
Input Audio Output Input Video Output Slow Blanking Fast Blanking Input Output Input Output
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ASAHI KASEI
[AKD4708-A]
CONTROL SOFTWARE MANUAL Set-up of evaluation board and control software
1. Set up the AKD4708-A according to previous term. 2. Connect IBM-AT compatible PC with AKD4708-A by 10-line type flat cable (packed with AKD4708-A). Take care of the direction of 10pin header. (Please install the driver in the CD-ROM when this control software is used on Windows 2000/XP. Please refer "Installation Manual of Control Software Driver by AKM device control software". In case of Windows95/98/ME, this installation is not needed. This control software does not operate on Windows NT.) 3. Insert the CD-ROM labeled "AK4708 Evaluation Kit" into the CD-ROM drive. 4. Access the CD-ROM drive and double-click the icon of "AKD4708-A.exe" to set up the control program. 5. Then please evaluate according to the follows.
Operation flow
Keep the following flow. 1. Set up the control program according to explanation above. 2. Click "Port Reset" button. 3. Click "Write default" button
Explanation of each buttons
1. [Port Reset]: 2. [Write default]: 3. [All Write]: 4. [Function1]: 5. [Function2]: 6. [Function3]: 7. [Function4]: 8. [Function5]: 9. [SAVE]: 10. [OPEN]: 11. [Write]: Set up the USB interface board (AKDUSBIF-A) when using the board. Initialize the register of AK4708. Write all registers that is currently displayed. Dialog to write data by keyboard operation. Dialog to write data by keyboard operation. The sequence of register setting can be set and executed. The sequence that is created on [Function3] can be assigned to buttons and executed. The register setting that is created by [SAVE] function on main window can be assigned to buttons and executed. Save the current register setting. Write the saved values to all register. Dialog to write data by mouse operation.
Indication of data
Input data is indicated on the register map. Red letter indicates "H" or "1" and blue one indicates "L" or "0". Blank is the part that is not defined in the datasheet.
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ASAHI KASEI
[AKD4708-A]
Explanation of each dialog 1. [Write Dialog]: Dialog to write data by mouse operation
There are dialogs corresponding to each register. Click the [Write] button corresponding to each register to set up the dialog. If you check the check box, data becomes "H" or "1". If not, "L" or "0". If you want to write the input data to the AK4708, click [OK] button. If not, click [Cancel] button.
2. [Function1 Dialog] : Dialog to write data by keyboard operation
Address Box: Data Box: Input registers address in 2 figures of hexadecimal. Input registers data in 2 figures of hexadecimal.
If you want to write the input data to the AK4708, click [OK] button. If not, click [Cancel] button.
3. [Function2 Dialog] : Dialog to evaluate DATT
There are dialogs corresponding to register of 02h,0Dh. Address Box: Input registers address in 2 figures of hexadecimal. Start Data Box: Input starts data in 2 figures of hexadecimal. End Data Box: Input end data in 2 figures of hexadecimal. Interval Box: Data is written to AK4708 by this interval. Step Box: Data changes by this step. Mode Select Box: If you check this check box, data reaches end data, and returns to start data. [Example] Start Data = 00, End Data = 09 Data flow: 00 01 02 03 04 05 06 07 08 09 09 08 07 06 05 04 03 02 01 00 If you do not check this check box, data reaches end data, but does not return to start data. [Example] Start Data = 00, End Data = 09 Data flow: 00 01 02 03 04 05 06 07 08 09 If you want to write the input data to the AK4708, click [OK] button. If not, click [Cancel] button.
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ASAHI KASEI
[AKD4708-A]
4. [SAVE] and [OPEN]
4-1. [SAVE] All of current register setting values displayed on the main window are saved to the file. The extension of file name is "akr". (1) Click [SAVE] Button. (2) Set the file name and click [SAVE] Button. The extension of file name is "akr". 4-2. [OPEN] The register setting values saved by [SAVE] are written to the AK4708. The file type is the same as [SAVE]. (1) Click [OPEN] Button. (2) Select the file (*.akr) and Click [OPEN] Button.
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ASAHI KASEI
[AKD4708-A]
5. [Function3 Dialog]
The sequence of register setting can be set and executed.
(1) Click [F3] Button. The following is displayed.
(2) Set the control sequence. Set the address, Data and Interval time. Set "-1" to the address of the step where the sequence should be paused. (3) Click [START] button. Then this sequence is executed. The sequence is paused at the step of Interval="-1". Click [START] button, the sequence restarts from the paused step. This sequence can be saved and opened by [SAVE] and [OPEN] button on the Function3 window. The extension of file name is "aks".
Figure 1. Window of [F3]
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ASAHI KASEI
[AKD4708-A]
6. [Function4 Dialog]
The sequence file (*.aks) saved by [Function3] can be listed up to 10 files, assigned to buttons and then executed. When [F4] button is clicked, the window as shown in Figure 2 opens.
Figure 2. [F4] window
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2007/01
ASAHI KASEI
[AKD4708-A]
6-1. [OPEN] buttons on left side and [START] buttons (1) Click [OPEN] button and select the sequence file (*.aks) saved by [Function3]. The sequence file name is displayed as shown in Figure 3. ( In case that the selected sequence file name is "DAC_Stereo_ON.aks")
Figure 3. [F4] window(2) (2) Click [START] button, then the sequence is executed.
6-2. [SAVE] and [OPEN] buttons on right side [SAVE] : The name assign of sequence file displayed on [Function4] window can be saved to the file. The file name is "*.ak4". [OPEN] : The name assign of sequence file(*.ak4) saved by [SAVE] is loaded. 6-3. Note (1) This function doesn't support the pause function of sequence function. (2) All files used by [SAVE] and [OPEN] function on right side need to be in the same folder. (3) When the sequence is changed in [Function3], the sequence file (*.aks) should be loaded again in order to reflect the change.
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2007/01
ASAHI KASEI
[AKD4708-A]
7. [Function5 Dialog]
The register setting file(*.akr) saved by [SAVE] function on main window can be listed up to 10 files, assigned to buttons and then executed. When [F5] button is clicked, the window as shown in Figure 4 opens.
Figure 4. [F5] window
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ASAHI KASEI
[AKD4708-A]
7-1. [OPEN] buttons on left side and [WRITE] button
(1) Click [OPEN] button and select the register setting file (*.akr). The register setting file name is displayed as shown in Figure 5. (In case that the selected file name is "DAC_Output.akr") (2) Click [WRITE] button, then the register setting is executed.
Figure 5. [F5] windows(2) 7-2. [SAVE] and [OPEN] buttons on right side [SAVE] : The name assign of register setting file displayed on [Function5] window can be saved to the file. The file name is "*.ak5". [OPEN] : The name assign of register setting file(*.ak5) saved by [SAVE] is loaded. 7-3. Note (1) All files used by [SAVE] and [OPEN] function on right side need to be in the same folder. (2) When the register setting is changed by [SAVE] Button on the main window, the register setting file (*.akr) should be loaded again in order to reflect the change.
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ASAHI KASEI
[AKD4708-A]
MEASUREMENT RESULTS Audio
[Measurement condition] * Measurement unit : Audio Precision SYS-2722 * BW : 20Hz20kHz * Power Supply : VP=12V, VD=5V, VDD1=5V, VDD2=5V * Interface : Input: Cannon, Output: BNC : Room * Temperature * Volume#0 Gain : 0dB * Measurement signal line path: AINL/AINR Volume#0 TVOUTL/TVOUTR Parameter S/(N+D) (At 2Vrms Output) DR S/N Input signal 1kHz, 0dBFS 1kHz, -60dBFS "no-input Measurement filter 20kLPF 22kLPF, A-weighted 22kLPF, A-weighted Results Lch [dB] 95.2 97.6 97.6 Results Rch [dB] 95.2 97.6 97.6
Plots
Figure 1-1. FFT (1kHz, 0dBFS input) at 2Vrms output Figure 1-2. FFT (1kHz, -60dBFS input) Figure 1-3. FFT (Noise floor) Figure 1-4. THD+N vs. Input Level (fin=1kHz) Figure 1-5. THD+N vs. fin (Input Level=0dBFS) Figure 1-6. Linearity (fin=1kHz) Figure 1-7. Frequency Response (Input Level=0dBFS) Figure 1-8. Crosstalk (Input Level=0dBFS)
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ASAHI KASEI
[AKD4708-A]
Video
[Measurement condition] * Signal Generator : Sony Tectonics TG2000 * Measurement unit : Sony Tectonics VM700T * Power Supply : VP=12V, VD=5V, VDD1=5V, VDD2=5V * Interface : Input: BNC, Output: BNC : Room * Temperature * Measurement signal line path: S/N: ENCV TVVOUT Y/C Crosstalk: ENCV TVVOUT, ENCRC TVRC DG, DP: ENCV TVVOUT Parameter S/N Y/C Crosstalk (Measured at TVVOUT) DG DP Input Signal 0% Flat Field 100% Red Field (Y ENCV, C ENCRC) Modulated Lamp Modulated Lamp Measurement Filter BW=15kHz to 5MHz Filter=Uni-Weighted BW=15kHz to Full Results 72.1 -45.0 (Note1) Min: -0.06 Max: 0.22 Min: -0.01 Max: 0.64 Unit dB dB % deg.
Plots
Figure 2-1. Noise spectrum (Input=0% Flat Field, BW=15kHz to 5MHz, Filter=Uni-Weighted) Figure 2-2. Y/C Crosstalk (Measured at TVVOUT, Input= 100% Red, ENCV=Y, ENCRC=C), BW=15kHz to Full) Figure 2-3. DG, DP (Input= Modulated Lamp) (Note1) Y/C Crosstalk: Reference Measurement: Results: 1.7dB (p-p) Composite signal ENCV, no input ENCRC, TVRC is terminated by 75Ohm. Y/C Crosstalk: Measurement: Results: -43.3dB (p-p) Y ENCV, C ENCRC, TVRC is terminated by 75Ohm. Y/C Crosstalk calculation: -43.3dB (p-p) - 1.7dB (p-p) = -45.0dB (p-p)
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ASAHI KASEI
[AKD4708-A]
Plots (Audio)
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4708 AINL/AINR
TVOUTL/TVOUTR: FFT: fin=1KHz, Input Level=0dB
Figure1-1. FFT (fin=1kHz, Input Level=0dBFS)
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4708 AINL/AINR
TVOUTL/TVOUTR: FFT: fin=1KHz, Input Level=-60dB
Figure-1-2. FFT (fin=1kHz Input Level=-60dBFS)
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ASAHI KASEI
[AKD4708-A]
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50
AK4708 AINL/AINR
TVOUTL/TVOUTR: FFT: No-input
100
200
500 Hz
1k
2k
5k
10k
20k
Figure1-3. FFT (Noise Floor)
-90 -90.5 -91 -91.5 -92 -92.5 -93 -93.5 -94 d B r A -94.5 -95 -95.5 -96 -96.5 -97 -97.5 -98 -98.5 -99 -99.5 -100 -140 -130 -120 -110 -100 -90 -80 -70 dBr -60 -50 -40 -30 -20 -10 +0
AK4708 AINL/AINR
TVOUTL/TVOUTR: THD+N Amplitude vs Input Amplitude: fin=1KHz
Figure1-4. THD+N vs. Input level (fin=1kHz)
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ASAHI KASEI
[AKD4708-A]
-90
AK4708 AINL/AINR
TVOUTL/TVOUTR: THD+N Amplitude vs Input Frequency: Input Level=0dB
-90.5 -91 -91.5 -92 -92.5 -93 -93.5 -94 d B r A -94.5 -95 -95.5 -96 -96.5 -97 -97.5 -98 -98.5 -99 -99.5 -100 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
Figure1-5. THD+N vs. Input Frequency (Input level=0dBFS)
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -140
AK4708 AINL/AINR
TVOUTL/TVOUTR: Linearity: fin=1KHz
d B r A
-130
-120
-110
-100
-90
-80
-70 dBr
-60
-50
-40
-30
-20
-10
+0
Figure1-6.Linearity (fin=1kHz)
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ASAHI KASEI
[AKD4708-A]
+1 +0.9 +0.8 +0.7 +0.6 +0.5 +0.4 +0.3 +0.2 d B r A +0.1 +0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1
AK4708 AINL/AINR
TVOUTL/TVOUTR: Frequency Response: Input Level=0dBFS
2k
4k
6k
8k
10k Hz
12k
14k
16k
18k
20k
Figure1-7. Frequency Response (Input level=0dBFS)
-70 -75 -80 -85 -90 -95 d B -100 -105 -110 -115 -120 -125
AK4708 AINL/AINR
TVOUTL/TVOUTR: Crosstalk: fin=1KHz, Input Level=0dBFS/No-input
-130 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure1-8. Crosstalk (Input level=0dBFS)
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ASAHI KASEI
[AKD4708-A]
Plots(Video)
AK4708 ENCV TVVOUT: S/N: Input Signal=0% Flat Field, BW=15kHz to 5MHz, Filter=Uni-Weighted
Figure 2-1. Noise spectrum (Input=0% Flat Field, BW=15kHz to 5MHz, Filter=Uni-Weighted)
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2007/01
ASAHI KASEI
[AKD4708-A]
AK4708 ENCV
TVVOUT/ENCRC TVRC: Y/C Crosstalk: Input Signal=100% Red Field,
Y ENCV, C ENCRC, BW=15kHz to Full
Figure 2-2 Crosstalk (Measured at TVVOUT, Input= 100% Red Field, Y ENCV, C ENCRC, BW=15kHz to Full)
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2007/01
ASAHI KASEI
[AKD4708-A]
AK4708 ENCV
TVVOUT: DG, DP: Input Signal=Modulated Ramp
Figure 2-3 DG, DP (Input Signal= Modulated Lamp)
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ASAHI KASEI
[AKD4708-A]
Revision History
Date (YY/MM/DD) 06/09/30 07/01/09 Manual Revision KM085100 KM085101 Board Reason Revision First Edition 0 0 Add Measurement Results Contents
Add Table Data, Plot Data
IMPORTANT NOTICE * These products and their specifications are subject to change without notice. Before considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized distributor concerning their current status. * AKM assumes no liability for infringement of any patent, intellectual property, or other right in the application or use of any information contained herein. * Any export of these products, or devices or systems containing them, may require an export license or other official approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange, or strategic materials. * AKM products are neither intended nor authorized for use as critical components in any safety, life support, or other hazard related device or system, and AKM assumes no responsibility relating to any such use, except with the express written consent of the Representative Director of AKM. As used here: (a) A hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. (b) A critical component is one whose failure to function or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. * It is the responsibility of the buyer or distributor of an AKM product who distributes, disposes of, or otherwise places the product with a third party to notify that party in advance of the above content and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and hold AKM harmless from any and all claims arising from the use of said product in the absence of such notification.
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A
B
C
D
E
VCC VCC U2 R13 10k R14 470
2 3 5 6 11 10 14 13 1 15 1A 1B 2A 2B 3A 3B 4A 4B A/B G 1Y 2Y 3Y 4Y VCC GND 4 7 9 12 16 8 1 7 14
VCC R16 1.8K
R11
10k
R12
470
U4A
2
74LS07
VCC
A
A
PORT1 A1-10PA-2.54DSA
10 8 6 4 2 9 7 5 3 1
C24 0.1u
SCL SDA ACK
74HCT157
VCRVOUT
CTRL VCC
VCRFBO
VCRGO
VCRBO
TVFB
AINR+
AINL+
VCC
2
VCC
14
14
D1 HSU119
R15 10k
1 7
U3A
2 3
U3B
4
1
CN1
48 47 46 45 44 43 42 41 40 39 38 37
L
3 1
H SW1 PDN
2
74HCT14
74HCT14
48pin_4
7
AINR-
AINL-
B
C19 0.1u
1
C3 0.1u
2
+ C4 10u CN3 + C6 10u
2
B
CN2 48pin_1
46
48
44
47
40
39
42
45
41
43
38
37
VCRFBO
VCRGO
VCRBO
AINL-
VCRVOUT
AINL+
VCC
VCC
VCRC
1
1
1
AINR+
AINR-
PDN
TVFB
SDA
SCL
C5 0.1u
1
48pin_3
VCRC
VD
36
36
VD1
2 14 14
VVSS
VSS
2
2
35
C1 0.1u
+ C2 10u
35
U4B
4 5
U3C C10+ 10u
2 1 6
3 7
TVVOUT
3
3
TVVOUT
PVCOM
34
34
74LS07
74HCT14 VVD2
4
C9 0.1u
7
4
VVD2
DVCOM
33 1
33
14
14
U4C
6 9
U3D
8
TVRC
5
5
TVRC
VP
32
C7 0.1u
2
+ C8 10u
32
VP1
5
C
74LS07
74HCT14
TVG
6
6
TVG
U1 AK4708
TVOUTL
31
31
TVOUTL
C
7
7
TVB
14 14
7
7
TVB
TVOUTR
30
30
TVOUTR
U4D
8 11
U3E
10
74LS07
74HCT14 ENCB
9 9 ENCB VCROUTR 28 28
7
7
2
9
VVD1
8
C12+ 10u
1
C11 0.1u
8
VVD1
VCROUTL
29
29
VCROUTL
VCROUTR
14
11 7
10
13 7
14
U4E
U3F
12
ENCG
10
10
ENCG
TVINL
27
27
TVINL
74LS07
74HCT14
ENCRC
11
11
ENCRC
TVINR
26
26
TVINR VCRINL
ENCC
14
12
12
ENCC VCRINR VCRVIN VCRRC VCRSB VCRFB TVVIN VCRG ENCV ENCY VCRB TVSB
VCRINL
25
25
13 7
12
13
14
15
16
17
18
19
20
21
INT
U4F
22
23
74LS07
D
24
D
13
14
15
16
17
18
19
20
21
22
23
48pin_2
INT
VCRVIN
E
VCRINR
VCRRC
VCRSB
VCRFB
ENCV
ENCY
VCRG
TVVIN
VCRB
TVSB
24
CN4
E
Title Size Document Number
A2
Date:
A B C D
Wednesday, August 23, 2006
E
AKD4708-A AK4708 Logic 1
Sheet
Rev
0
of
3
A
B
C
D
E
Video Intput
J12 ENCV
2 3 4 5
A
Video Output
R39 75 ENCV TVVOUT J19 TVVOUT
1 2 3 4 5 2 3 4 5 1
Audio Intput
J7 C36 VCRINL 0.47u + R25 300 VCRINL TVOUTL
Audio Output
C50 10u + R45 300 J24 TVOUTL
1 2 3 4 5
A
C40 0.1u R30 75
1
R46 10k
J15 ENCY
2 3 4 5 1
C43 0.1u ENCY R33 75 TVRC
R48 75
J26 TVRC
1 2 3 4 5 2 3 4 5
J11 C39 VCRINR 0.47u
1
R29 300 VCRINR TVOUTR
C51 10u +
R49 300
J27 TVOUTR
1 2 3 4 5
+
R50 10k
J17 ENCRC
2 3 4 5 1
C46 0.1u ENCRC R36 75 TVG
R44 75
J23 TVG
1 2 3 4 5 2 3 4 5
J1 TVINL
1
C30 0.47u +
R19 300 TVINL VCROUTL
C52 10u +
R53 300
J30 VCROUTL
1 2 3 4 5
R54 10k
J5 ENCC
B
C34 0.1u ENCC R23 75 TVB
R40 75
J20 TVB
1 2 3 4 5 2 3 4 5
J4 TVINR
1
C33 0.47u +
R22 300 TVINR VCROUTR
C53 10u +
R56 300
J32 VCROUTR
1 2 3 4 5
B
2 3 4 5
1
R57 10k
J8 ENCG
2 3 4 5 1
C37 0.1u ENCG R26 75 VCRVOUT
R52 75
J29 VCRVOUT
1 2 3 4 5 2 3 4 5
J34 AINL+
1
C45 0.47u + J14 AINL
1 3 1 2
R35 300 AINL+
Blanking Output
R51 75 TVFB J28 TVFB
1 2 3 4 5
J2 ENCB
2 3 4 5 1
C31 0.1u ENCB R21 75 VCRC VCRCOUT
R59 75
J36 VCRCOUT
1 2 3 4 5
3
2
C42 0.47u +
R32 300 AINL-
JP10 GND
C
R43 300 TVSB
J22 TVSB
1 2 3 4 5
C
J3 TVVIN
2 3 4 5 1
C32 0.1u TVVIN R20 75 VCRGO VCRGOUT
R60 75
J37 VCRGOUT
1 2 3 4 5
R47 300 J35 AINR+ J6 VCRVIN
2 3 4 5 1
J25 VCRSB
1 2 3 4 5
C48 0.47u + J18 AINR
1 3 1 2
R38 300 AINR+
VCRSB
C35 0.1u VCRVIN R24 75 VCRBO VCRBOUT
R61 75
J38 VCRBOUT
1 2 3 4 5
2 3 4 5
1
2
R62 75 C47 0.47u + R37 300 AINRVCRFBO VCRFBOUT
J39 VCRFBOUT
1 2 3 4 5
VCRCOUT
D
J16 VCRRC
2 3 4 5 1
JP6 VCRRC I/O I R34 75
R101 (Short)
C44 0.1u VCRRC
JP11 GND
D
3
VD1
R17 10k
R18 300
TEST43 INT
Blanking Input
VCRGOUT J13 VCRG
2 3 4 5 1
INT
JP7 VCRG I/O I R31 75
R102 (Short)
C41 0.1u VCRG
VCRFBOUT J10 VCRFB VCRBOUT
E
JP9 VCRFB I/O I R28 75
R104 (Short) VCRFB
E
J9 VCRB
2 3 4 5 1
JP8 VCRB I/O I R27 75
R103 (Short)
C38 0.1u VCRB
2 3 4 5
1
Title Size
A2
Date:
A B C D
AKD4708-A Audio Video Input Output Wednesday, August 23, 2006 2 3
Document Number Sheet of
E
Rev
0
A
B
C
D
E
L4 (short)
A
VP
2 1 1
T1 NJM78M05FA
GND IN OUT 3
JP2 VD C22 + 0.1u
VD
1
L1 (short)
2
VP1
1
VD1
A
C27 47u
2
C20 + 0.1u
C21 47u
2
1
C28 47u
2
+ VCC VCC C23 47u + C25 0.1u C26 0.1u
L5 (short)
1 2
JP4 VCC
B
for for 74HC14 74LS07 VVD
1
B
JP3 VVD VP
1
L2 (short)
2
VVD1
VP T45_O
C29 47u
2
+
L3 (short)
1 2
1
VVD2
C
VD T45_R VVD T45_R VCC T45_R
D
VD
1
C
VVD
1
VCC
1
AGND
JP1 GND
DGND
D
AGND
1
T45_BK DGND
1
T45_BK
E
E
Title Size Document Number
A4
Date:
A B C D
AKD4708-A Power Supply
Sheet
E
Rev of
0
3
Wednesday, August 23, 2006
3

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