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| MOSA ELECTRONICS FEATURES * Voltage Output * * * * * * * * * * * Space saving package (SOP8) Low power consumption Low total harmonic distortion Wide dynamic range(16-bit resolution) No zero crossing distortion Wide operating temperature range(-40 to 85) *Easy application : MS6311 / 6310 Stereo Audio DAC single 3 to 5.5 rail power supply output and bias current are proportional to supply voltage integrated current-to-voltage converter Internal bias current ensures maximum dynamic range Fast setting time permits 2*, 4*, and 8* oversampling(serial input) or double speed operation at 4* oversampling Compatible with most of the Japanese input formats; time multiplexed, two's complement, TTL The full scale output voltage can be mask optioned Cost efficient APPLICATIONS VCD Player, DVD Player, CD-ROM, DVD-ROM, CD-RW, DVD-RW, Motherboard. DESCRIPTION The MS6311 is a 16-bit voltage-output Digital-to-Analog Converter(DAC). The MS6311 is fabricated in a 0.8m CMOS process and features extremely low power dissipation, small package size and easy application. The accuracy of the matched coarse current sources, combined with the unique symmetrical decoding method, preclude zero-crossing distortion and ensures high quality audio reproduction. These unique features, combined with its exceptional performance, make the MS6311 ideally suited for use in digital audio equipment. MS6311 is pin and function compatible with the Philips, TDA1311. MS6310 is a low cost solution. PINNING Symbol BCK WS DATA GND VDD VOL n.c. VOR Pin 1 2 3 4 5 6 7 8 Description bit clock input word select input data input ground positive supply voltage left channel output not connected right channel output BCK 1 WS 2 DATA 3 GND 4 Pin configuration 8 VOR MS6311 MS6310 7 n.c. 6 VOL 5 VDD -1- www.mosanalog.com.tw MOSA ELECTRONICS BLOCK DIAGRAM I BL MS6311 / 6310 Stereo Audio DAC R1 2K + Vref 6 OP1 VOUT left LEFT OUTPUT LATCH RIGHT OUTPUT LATCH I BR + 11-BIT PASSIVE DIVIDER 32 (5-BIT) MATCHED CURRENT SOURCES 32 (5-BIT) MATCHED CURRENT SOURCE 11-BIT PASSIVE DIVIDER Vref R2 2K LEFT BIT SWITCHES RIGHT BIT SWITCHES 8 OP2 VOUT right Iref Iref I BL Iref I BR R4 33K Vref LEFT INPUT LATCH REFERENCE SOURCE BCK WS 1 2 Rref 11K R3 22K 5 CONTROL & TIMING RIGHT INPUT LATCH VDD 100nF DATA 3 4 GND Fig.1 Block diagram. LIMITING VALUES Symbol VDD Tsig TXTAL TAMB Ves Parameter Positive Supply Voltage Storage Temperature Range Maximum Crystal Temperature Operating Ambient Temperature Range Electrostatic Handling Min -55 -40 -2000 Max 6 +150 +150 +85 2000 Unit V V -2- www.mosanalog.com.tw MOSA ELECTRONICS ELECTRICAL CHARACTERISTICS (Ta=25, VDD=5V) Symbol VDD I DD Parameter Positive Supply Voltage Operating Current at code 0000H Conditions Min 3 Typ 5 3.4 MS6311 / 6310 Stereo Audio DAC Max 5.5 6.0 Unit V mA DIGITAL INPUTS (WS, BCK, DATA) Symbol Parameter Conditions VI = 0.8V VI = 2.4V Min 54 15 15 12 2 2 12 Typ Max 10 10 18.4 18.4 384 12 12 Unit l I IL l Input Leakage Current LOW l I IH l Input Leakage Current HIGH f BCK Input Clock Frequency BR Bit Rate Data Input (Pin 3) Word Select Input (Pin 2) Rise Time Fall Time Bit Clock Cycle Time Bit Clock High Time Bit Clock Low Time Data Set-up Time Data Hold Time to Bit Clock Word Select Hold Time Word Select Set-up Time A A MHz Mbits/s kHz ns ns ns ns ns ns ns ns ns fWS tr tf t Cr t HB t LB t SD t HD t HW t SW ANALOG OUTPUTS (VOL,VOR) Symbol Res VFS TCFS VDC THD THD CS Resolution Full Scale Output Voltage Full Scale Temperature Coefficient at Analog Outputs ; VOL, VOR Output Bias Total Harmonic Distortion Total Harmonic Distortion Channel Separation note 2 a-weighted at code 0000H including noise at 0 dB; note 2 including noise at -60 dB; note 2 note 1 MS6310 Parameter Conditions Min 1.8 2.2 75 86 Typ 2.0 2.46 Max 16 2.2 2.7 -63 0.07 -24 6 0.3 Unit bits V 10 -16 400 2.5 -68 0.04 -30 3 80 0.2 V dB dB dB dB l d I O l Unbalance Between Outputs l t d l Time Delay Between Outputs S/N Signal-to-Noise Ratio 0.2 92 s dB Note : 1.The full scale output voltage can be mask optioned as 2.5V, 3V, 3.5V and 4V. 2.Measured with 1kHz sinewave generated at sampling rate of 192 kHz. -3www.mosanalog.com.tw MOSA ELECTRONICS TIMING AND DATA FORMAT MS6311 / 6310 Stereo Audio DAC The MS6311 accepts input serial data formats of 16-bit word length. Left and right data words are time multiplexed. The MSB (bit 1) must always be first. The format of data input is shown in Figs. 2 and 3. With a HIGH level on the word select input (WS), data is placed in the left input register and with LOW level on the WS input, data is placed in the right register (Fig. 1). The data in the input registers are simultaneously latched in the output registers which control the bit switches. Internal bias currents IBL and IBR are each added to the full scale output current IFS in order to achieve the maximum dynamic range at the outputs of OP1 and OP2(Fig. 1). The reference voltage Vref (Fig. 1) is approximately 2/3 VDD. In this way the maximum dynamic range is achieved over the entire power supply range. WS tr tHB tf LEFT RIGHT tLB tHW tSW BCK tcr LSB MSB tSD tHD DATA Fig.2 Timing and input signals. WS LEFT RIGHT BCK DATA 2 1 0 15 MSB 14 13 2 1 0 LSB 15 MSB 14 13 2 1 0 LSB Fig.3 Format of input signals. MEASUREMENT BLOCK DIAGRAM R-ch Pattern Generator Generate sinewave pattern for BCK.WS.DATA DAC L-ch OPAmp Analysis Equipment AC Level (Vrms) THD THD+N MS6311 MS6310 MS6308 f = 1 kHz , 2Vp-p sinewave NOTE : THD and THD+N is measured by HP AUDIO ANALYZER and FFT Analysis. -4- www.mosanalog.com.tw MOSA ELECTRONICS APPLICATION INFORMATION Basic application example MS6311 / 6310 Stereo Audio DAC A typical example of a CD-application with the MS6311 is shown in Fig.4. It features typical decoupling components and a second-order analog post-filter (smoothing filter) stage providing a line output. 420pF 1 2 3 4 BCK WS DATA GND VoR n.c. VoL VDD 8 7 6 5 420pF 50k 50k Headphone (32) 50k 50k Headphone (32) MS6308 100nF MS6311 10 VDD 47uF 100nF MS6308 100nF Fig.4 Note : Example of a 2nd order filter application. No external capacitor loading is allowed at the output pins 6 and 8. EXTERNAL DIMENSIONS 4.8 8 5 6.0 3.9 1 4 Unit : mm Tolerance : 0.1mm 1.27 0.42 0.68 1.4 0.22 1.27 0.42 0.23 -5- www.mosanalog.com.tw MOSA ELECTRONICS TAPE AND REEL (Unit : mm) 2.0 0.30 0.05 4.0 0.05 1.5+0.1/-0.0 DIA MS6311 / 6310 Stereo Audio DAC 1.75 0.3R MAX 5.5 0.05 12.0 0.3 5.4 3.0 3.6 6.9 8.0 1.5 MIN 0.5 Radius Typical 2.0 1.7 ORDERING INFORMATION Part Number Packaging Marking Package Marking Printing Transport Media Tape and Reel SOP8 MS6310 MS6310AS SOP 8 : Plastic small outline package ; 8 leads. Ink Tube Description MS6311 MS6311AS MS 6311 A S Package Type Version Product Number MOSA Abbreviation -6- www.mosanalog.com.tw |
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