MOSA MS6310 Low Cost 16-Bit Stereo Audio DAC Low Cost 16-Bit Stereo Audio DAC FEATURES ‧Cost effective ‧Low distortion ‧No zero crossing distortion ‧Output voltage swing is proportional to supply voltage (VOPP=VDD/2) ‧Space saving package SOP8 ‧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 input level APPLICATIONS ‧VCD Player, DVD Player ‧CD-ROM, DVD-ROM, CD-RW, DVD-RW DESCRIPTION The MS6310 is a voltage-output Digital-to-Analog Converter (DAC). The accuracy of the weight current sources, combined with the unique symmetrical decoding method, preclude zero-crossing distortion and ensures high quality audio reproduction. The MS6310 is pin and function compatible with MS6311, Philips TDA1311. PIN CONFIGURATION Symbol Pin Description BCK 1 Bit clock input WS 2 Word select input DATA 3 Data input GND 4 Ground VDD 5 Positive supply voltage VOL 6 Left channel output n.c. 7 not connected VOR 8 Right channel output REV1 BCK 1 WS 2 DATA 3 GND 4 1 8 VOR MS6310 7 n.c. 6 VOL 5 VDD www.mosanalog.com.tw MOSA MS6310 Low Cost 16-Bit Stereo Audio DAC BLOCK DIAGRAM RF IBL 6 LEFT OUTPUT LATCH RIGHT OUTPUT LATCH LEFT VREF RF IBR LEFT BIT SWITCHS VOUT OP1 8 RIGHT BIT SWITCHS OP2 VOUT RIGHT VREF 16-BIT MATCHED CURRENT DIVIDER VREF 16-BIT MATCHED CURRENT DIVIDER IBL LEFT INPUT LATCH BCK 1 WS 2 DATA 3 IREF VREF IBR REFERENCE SOURCE VREF RIGHT INPUT LATCH 5 CONTROL & TIMING VDD 10uF 4 Fig.1 0.1uF GND Block diagram. ORDERING INFORMATION Package Part number Packaging Marking Transport Media 8-Pin SOP MS6310CSTR MS6310CS 8-Pin SOP MS6310CSU MS6310CS 100 Units Tube 8-Pin SOP (lead free) MS6310CSGTR MS6310CSG 2.5k Units Tape and Reel 8-Pin SOP (lead free) MS6310CSGU MS6310CSG 100 Units Tube REV1 2 2.5k Units Tape and Reel www.mosanalog.com.tw MOSA MS6310 Low Cost 16-Bit Stereo Audio DAC ABSOLUTE MAXIMUM RATINGS Symbol Parameter VDD Positive Supply Voltage VESD Electrostatic Handling TSTG Storage Temperature Range TA Operating Ambient Temperature Range TJ Rating Unit 6 V -2000 to 2000 -65 to 150 V ℃ -40 to 85 ℃ Maximum Junction Temperature 150 ℃ TS Soldering Temperature, 10 seconds 260 ℃ RTHJA Thermal Resistance from Junction to Ambient in Free Air SOP8 210 ℃/W OPERATING RATINGS Symbol VDD Parameter Supply Voltage Min Typ Max Unit 2.7 - 5.5 V Min Typ Max Unit 5V ELECTRICAL CHARACTERISTICS (Ta=25℃, VDD=5V, f=1kHz; unless otherwise specified) Symbol Parameter Conditions DC Characteristics VDC Output DC level VFS Full scale output voltage VFS=0.5VDD IQ Quiescent current At code 0000H CS Channel separation 2.3 2.5 2.7 V 2.3 2.5 2.7 Vpp - 3.4 6 mA 75 80 - dB - 16 bits AC Characteristics Res Resolution - THD+N Total harmonic distortion plus noise - -57 -51 dB - 0.14 0.28 % S/N Signal-to-noise ratio 80 85 - dB REV1 A-weighted at code 0000H 3 www.mosanalog.com.tw MOSA MS6310 Low Cost 16-Bit Stereo Audio DAC TIMING AND DATA FORMAT The MS6310 accepts input serial data formats of 16-bit word length. Left and right data words are time multiplexed. The MSB 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). In this way the maximum dynamic range is achieved over the entire power supply range. LEFT WS RIGHT tr tHB tf tLB tHW tSW BCK tcr tSD LSB DATA Fig.2 tHD MSB Timing and input signals. LEFT WS RIGHT BCK DATA 2 1 0 15 14 13 2 1 MSB Fig.3 Data format (BCK, WS, DATA) Symbol Parameter 0 15 14 LSB MSB 13 2 1 0 LSB Format of input signals. Conditions Min Typ Max Unit VIL Input LOW level - - 0.3VDD V VIH Input HIGH level 0.7VDD - - V l I IL l l I IH l f BCK Input Leakage Current LOW - - 10 Input Leakage Current HIGH - - 10 µA µA Input Clock Frequency - - 18.4 MHz BR Bit Rate Data Input - - 18.4 Mbits/s fWS Word Select Input - - 384 kHz tr tf t Cr t HB t LB t SD t HD t HW t SW Rise Time - - 12 ns Fall Time - - 12 ns Bit Clock Cycle Time 54 - - ns Bit Clock High Time 15 - - ns Bit Clock Low Time 15 - - ns Data Set-up Time 12 - - ns REV1 Data Hold Time to Bit Clock 2 - - ns Word Select Hold Time 2 - - ns Word Select Set-up Time 12 - - ns 4 www.mosanalog.com.tw MOSA MS6310 Low Cost 16-Bit Stereo Audio DAC APPLICATION INFORMATION Basic application example A typical example of a CD-application with the MS6310 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 BCK VoR 8 WS N.C 7 3 DATA VoL 6 4 GND VDD 5 50k Headphone (32Ω) 50k MS6308 100pF 420pF MS6310 50k Headphone (32Ω) 50k 10Ω MS6308 VDD 100pF 47uF Fig.4 0.1uF Example of a 2nd order filter application. VCD player DAC Dual Operational Amplifier VCC =12V 180pF 10uF 51k 1uF VOR (2.0 Vrms) 10k 22k 2 8 1 1 BCK VoR 8 2 WS N.C 7 VoL 6 3 100k VRE 4558 F 3 4 DATA GND VDD 100k 5 1uF 5 1uF 7 22k 6 MS6310 4 VDD =5V 51k 10uF VOL 180pF 10k Fig.5 REV1 A 1st order filter for VCD player. 5 www.mosanalog.com.tw MOSA MS6310 Low Cost 16-Bit Stereo Audio DAC EXTERNAL DIMENSIONS 8 5 Symbol H E 1 A A1 B C D H E e L 4 D Dimension in mm Min Max 1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 4.80 5.00 5.80 6.20 3.80 4.00 1.27 BSC 0.40 1.27 Dimension in inch Min Max 0.0532 0.0688 0.0040 0.0098 0.013 0.020 0.0075 0.0098 0.1890 0.1968 0.2284 0.2440 0.1497 0.1574 0.050 BSC 0.016 0.050 L A A1 e B C SOP8 TAPE AND REEL (Unit : mm) 2.0 0.30 0.05 0.05 1.5+0.1/-0.0 DIA 4.0 1.75 0.3R MAX 5.5 0.05 12.0 0.3 5.4 3.0 3.6 8.0 1.5 MIN 6.9 0.5 Radius Typical 2.0 1.7 SOP8 REV1 6 www.mosanalog.com.tw