MOSA MS6331 16-Bit Stereo Audio DAC & Headphone Driver 16-bit Stereo Audio DAC & Headphone Driver Component Less, Low Cost FEATURES ‧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 ‧ Housed in SOP8, MSOP8 package ‧Operation range: 2.5V~6.5V ‧Excellent Power Supply Rejection Ratio(PSRR) ‧Component less ‧No zero crossing distortion ‧Cost effective APPLICATIONS ‧Multimedia system, MP3, PDA, Portable Digital Audio. DESCRIPTION The MS6331 is an integrated 16-bit voltage-output Digital-to-Analog Converter (DAC) and class AB stereo headphone driver. The MS6331 is with the excellent Power Supply Rejection Ratio(PSRR). It is fabricated in a 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 MS6331 ideally suited for use in digital audio equipment. BLOCK DIAGRAM VDD - BCK WS OUTL + HP DAC DATA + - OUTR CAP GND REV 2 1/9 www.mosanalog.com MOSA MS6331 16-Bit Stereo Audio DAC & Headphone Driver PIN CONFIGURATION Symbol Pin Description VDD 1 Positive supply voltage OUTL 2 Left channel output OUTR 3 Right channel output CAP 4 Capacitor BCK 5 Bit clock input WS 6 Word select input DATA 7 Data input VDD 1 OUTL 2 8 GND 7 DATA MS6331 OUTR 3 6 WS CAP 4 5 BCK GND 8 Ground Pin 4 : Capacitor = 1uF~10uF ORDERING INFORMATION Package Part number Packaging Marking Transport Media 8-Pin SOP (lead free) MS6331GTR MS6331G 2.5k Units Tape and Reel 8-Pin SOP (lead free) MS6331GU MS6331G 100 Units Tube 8-Pin MSOP (lead free) MS6331MGTR 6331G 3.5k Units Tape and Reel 8-Pin MSOP (lead free) RoHS Compliance MS6331MGU 6331G 80 Units Tube ABSOLUTE MAXIMUM RATINGS Symbol Parameter Rating Unit 6.5 V -3000 to 3000 VDD Positive Supply Voltage VESD Electrostatic Handling TSTG Storage Temperature Range -65 to 150 V ℃ TA Operating Ambient Temperature Range -40 to 85 ℃ TJ 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 REV 2 Parameter Supply Voltage 2/9 Min Typ Max Unit 2.5 - 6.5 V www.mosanalog.com MOSA MS6331 16-Bit Stereo Audio DAC & Headphone Driver 3.3V ELECTRICAL CHARACTERISTICS (Ta=25℃, VDD=3.3V, VSS=0V, f=1kHz, RL=32; unless otherwise specified) Symbol Parameter Conditions Min Typ Max Unit DC Characteristics VCAP Voltage at CAP 1.60 1.65 1.70 V VDC Output DC level 1.60 1.65 1.70 V VFS Full scale output voltage - 1.87 - V IQ Quiescent current - 3.6 4 mA PSRR Power supply rejection ratio CAP=2.2uF (100Hz) 50 55 - dB CAP=10uF (100Hz) 61 66 - dB CS Channel separation 70 75 - dB VFS=0.568 * VDD AC Characteristics Res Resolution - - 16 bits THD+N Total harmonic distortion plus noise - -60 -56 dB - 0.1 0.158 % S/N Signal-to-noise ratio 86 92 - dB Po Maximum output power (THD+N)/S < 0.1 49 52 - mW Vo Maximum output voltage swing (THD+N)/S < 0.1 2.5 2.6 - Vpp REV 2 3/9 www.mosanalog.com MOSA MS6331 16-Bit Stereo Audio DAC & Headphone Driver TYPICAL PERFORMANCE CHARACTERISTICS VDD=5V VDD=3.3V VDD=2.7V THD+N (%) THD+N (%) QUIESCENT CURRENT (mA) (Ta=25℃, RL=32, sampling rate=4fs; unless otherwise specified) f=1kHz SUPPLY VOLTAGE (V) FREQUENCY (Hz) SUPPLY VOLTAGE (V) Quiescent current vs. supply voltage THD+N vs. frequency THD+N vs. supply voltage CAP=2.2uF VDD=5V VRR=-20dBV CAP=10uF CAP=2.2uF VDD=3.3V VRR=-20dBV PSRR (dB) CAP=10uF PSRR (dB) PSRR (dB) CAP=10uF CAP=2.2uF VDD=2.7V VRR=-20dBV FREQUENCY (Hz) FREQUENCY (Hz) PSRR vs. frequency PSRR vs. frequency CHANNEL SEPARATION (dB) FREQUENCY (Hz) PSRR vs. frequency SUPPLY VOLTAGE (V) Channel separation vs. supply voltage REV 2 4/9 www.mosanalog.com MOSA MS6331 16-Bit Stereo Audio DAC & Headphone Driver TIMING AND DATA FORMAT The MS6331 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. 1 and 2. LEFT WS RIGHT tr tHB tf tLB tHW tSW BCK tcr tSD LSB DATA Fig.1 tHD MSB Timing and input signals. LEFT WS RIGHT BCK DATA 2 1 0 15 14 13 2 1 MSB Fig.2 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 - - 0.8 V VIH Input HIGH level 2 - - V l I IL l l I IH l f BCK Input Leakage Current LOW - - 10 Input Leakage Current HIGH - - 10 A A 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 REV 2 Bit Clock Cycle Time 54 - - ns Bit Clock High Time 15 - - ns Bit Clock Low Time 15 - - ns Data Set-up Time 12 - - ns Data Hold Time to Bit Clock 2 - - ns Word Select Hold Time 2 - - ns Word Select Set-up Time 12 - - ns 5/9 www.mosanalog.com MOSA MS6331 16-Bit Stereo Audio DAC & Headphone Driver APPLICATION INFORMATION Basic application example MS6331 Digital audio input Note : REV 2 5 BCK CAP 4 6 WS OUTR 3 7 DATA OUTL 2 8 GND VDD 1 10uF Headphone (32Ω) 47uF 47uF PHONE JACK VDD Vo=1.87Vpp at VDD =3.3V 6/9 www.mosanalog.com MOSA MS6331 16-Bit Stereo Audio DAC & Headphone Driver EXTERNAL DIMENSIONS 8 5 Symbol H A A1 B C D H E e L E 1 4 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 D L A A1 e B C SOP8 Symbol H A A1 A2 B C D H E e L E Dimension in mm Dimension in inch Min Max Min Max 0.81 1.12 0.032 0.048 0.05 0.15 0.002 0.006 0.76 0.86 0.030 0.038 0.28 0.38 0.011 0.015 0.13 0.23 0.005 0.009 2.90 3.10 0.114 0.122 4.70 5.10 0.185 0.201 2.90 3.10 0.114 0.122 0.65 0.026 0.40 0.66 0.016 0.026 D A A2 A1 e L B C MSOP8 REV 2 7/9 www.mosanalog.com MOSA MS6331 16-Bit Stereo Audio DAC & Headphone Driver 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 2.0 0.30 0.05 0.05 1.5+0.1/-0.0 4.0 1.75 0.3R MAX 5.5 0.05 12.0 0.3 3.3 5.2 8.0 1.5 MIN 0.3 Typical 4.2 3.4 1.6 1.2 MSOP8 REV 2 8/9 www.mosanalog.com MOSA MS6331 16-Bit Stereo Audio DAC & Headphone Driver DEMO BOARD 1 2 3 Function description Label 1: Supply Input The supply range is 2.5~6.5 VDC. Label 2: Headphone Jack Used 3.5mm diameter of headphone with 32ohm Label 3: Digital Audio Input Connected to digital audio signals. Circuit J5 1 2 C3 AVDD 100u C6 104 * J1 1 2 3 4 C1 100u PHONEJACK C2 100u C4 10u Vdd GND O_L DATA O_R WS CAP BCK MS6331 J2 OUT_R OUT_L G 1 2 3 8 7 6 5 R1 1k R2 1k R3 1k J3 1 2 3 4 BCK WS DATA G Audio source Audio Out REV 2 9/9 www.mosanalog.com