MOSA MS6332 16-Bit Stereo Audio DAC & Headphone Driver 16-Bit Stereo Audio DAC & Headphone Driver Mute and Power Down Function 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 ‧ Cost efficient ‧ Housed in 8 pin SOP package ‧Operation range: 2.7V~5.5V ‧Excellent Power Supply Rejection Ratio(PSRR) ‧No pop-noise ‧Mute and Power Down function Controlled by audio input pins (BCK, WS) ‧Component less ‧No zero crossing distortion APPLICATIONS ‧Multimedia system, MP3, PDA, Portable Digital Audio. DESCRIPTION The MS6332 is an integrated 16-bits voltage-output Digital-to-Analog Converter (DAC) and class AB stereo headphone driver. The MS6332 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 MS6332 ideally suited for use in digital audio equipment. BLOCK DIAGRAM VDD - BCK WS OUTL + HP DAC DATA + - OUTR CAP GND REV 1.0 1 www.mosanalog.com.tw MOSA MS6332 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 MS6332 OUTR 3 6 WS CAP 4 5 BCK GND 8 Ground Pin 4 : Capacitor = 1uF~10uF (ripple rejection) ORDERING INFORMATION Package Part number Packaging Marking Transport Media 8-Pin SOP MS6332TR MS6332 2.5k Units Tape and Reel 8-Pin SOP MS6332U MS6332 100 Units Tube 8-Pin SOP (lead free) MS6332GTR MS6332G 2.5k Units Tape and Reel 8-Pin SOP (lead free) MS6332GU MS6332G 100 Units Tube ABSOLUTE MAXIMUM RATINGS Symbol Parameter Rating Unit 6 V -3000 to 3000 -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 VDD Positive Supply Voltage VESD Electrostatic Handling TSTG Storage Temperature Range TA Operating Ambient Temperature Range TJ ℃/W OPERATING RATINGS Symbol VDD REV 1.0 Parameter Supply Voltage 2 Min Typ Max Unit 2.7 - 5.5 V www.mosanalog.com.tw MOSA MS6332 16-Bit Stereo Audio DAC & Headphone Driver 3.3V ELECTRICAL CHARACTERISTICS (Ta=25℃, VDD=3.3V, VSS=0V, f=1kHz, RL=32Ω; 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 IPD Power down current No digital input signal - 0.35 1 uA PSRR Power supply rejection ratio CAP=2.2uF (100Hz) 50 55 - dB CAP=10uF (100Hz) 61 66 - dB CS Channel separation 70 75 - dB ATT Mute attenuation 62 67 - dB 16 bits VFS=0.023663* 24 *VDD AC Characteristics Res Resolution - - 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 1.0 3 www.mosanalog.com.tw MOSA MS6332 16-Bit Stereo Audio DAC & Headphone Driver TYPICAL PERFORMANCE CHARACTERISTICS THD+N (%) QUIESCENT CURRENT (mA) POWER DOWN CURRENT (uA) (Ta=25℃, RL=32Ω, sampling rate=4fs; unless otherwise specified) f=1kHz SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Power down current vs. supply voltage Quiescent current vs. supply voltage THD+N vs. supply voltage CAP=2.2uF VDD=5V VRR=-20dBV CAP=10uF CAP=2.2uF PSRR (dB) CAP=10uF PSRR (dB) PSRR (dB) CAP=10uF VDD=3.3V VRR=-20dBV CAP=2.2uF VDD=2.7V VRR=-20dBV FREQUENCY (Hz) FREQUENCY (Hz) PSRR vs. frequency PSRR vs. frequency THD+N (%) MUTE ATTENUATION (dB) CHANNEL SEPARATION (dB) FREQUENCY (Hz) PSRR vs. frequency VDD=5V VDD=3.3V VDD=2.7V f=1kHz SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) FREQUENCY (Hz) Mute attenuation vs. supply voltage Channel separation vs. supply voltage THD+N vs. frequency REV 1.0 4 www.mosanalog.com.tw MOSA MS6332 16-Bit Stereo Audio DAC & Headphone Driver TIMING AND DATA FORMAT The MS6332 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 - - 0.3VDD 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 REV 1.0 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 www.mosanalog.com.tw MOSA MS6332 16-Bit Stereo Audio DAC & Headphone Driver POWER DOWN AND MUTE FUNCTION Power down and mute functions are controlled by the audio input pins (WS, BCK). The initial status is in the mute on and the power down modes. The 20 clock counts is to switch the power down mode and the 18 clock counts is to switch the mute mode. In changing these modes, the clock BCK should not exist in WS=1, and always exists in WS=0. Power down timing The initial status is in the power down mode. WS BCK Total 20 clocks Power down mode Power active mode Mute timing The initial status is in the mute on mode. WS BCK Total 18 clocks Mute on Mute off APPLICATION INFORMATION Basic application example MS6332 Digital audio input Note : REV 1.0 5 BCK CAP 4 6 7 WS OUTR 3 DATA OUTL 2 8 GND VDD 1 10uF Headphone (32Ω) 47uF 47uF PHONE JACK VDD Vo=1.95Vpp at VDD =3.3V 6 www.mosanalog.com.tw MOSA MS6332 16-Bit Stereo Audio DAC & Headphone Driver 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 REV 1.0 7 www.mosanalog.com.tw