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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
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 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
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 DATA DAC
+
OUTL HP
+ -
OUTR
CAP GND
REV 1.0
1
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MOSA
PIN CONFIGURATION
Symbol VDD OUTL OUTR CAP BCK WS DATA Pin 1 2 3 4 5 6 7 Description Positive supply voltage Left channel output Right channel output Capacitor Bit clock input Word select input Data input
OUTR CAP 3 4 VDD OUTL 1 2
MS6332
16-Bit Stereo Audio DAC & Headphone Driver
8 7 MS6332 6 5
GND DATA WS BCK
GND 8 Ground Pin 4 : Capacitor = 1uF~10uF (ripple rejection)
ORDERING INFORMATION
Package 8-Pin SOP 8-Pin SOP 8-Pin SOP (lead free) 8-Pin SOP (lead free) Part number MS6332TR MS6332U MS6332GTR MS6332GU Packaging Marking MS6332 MS6332 MS6332G MS6332G Transport Media 2.5k Units Tape and Reel 100 Units Tube 2.5k Units Tape and Reel 100 Units Tube
ABSOLUTE MAXIMUM RATINGS
Symbol VDD VESD TSTG TA TJ TS RTHJA Positive Supply Voltage Electrostatic Handling Storage Temperature Range Operating Ambient Temperature Range Maximum Junction Temperature Soldering Temperature, 10 seconds Thermal Resistance from Junction to Ambient in Free Air SOP8 Parameter Rating 6 -3000 to 3000 -65 to 150 -40 to 85 150 260 /W Unit V V
210
OPERATING RATINGS
Symbol VDD Supply Voltage Parameter Min 2.7 Typ Max 5.5 Unit V
REV 1.0
2
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MOSA
3.3V ELECTRICAL CHARACTERISTICS
(Ta=25 Symbol DC Characteristics VCAP VDC VFS IQ IPD PSRR CS ATT Res THD+N S/N Po Vo Voltage at CAP Output DC level Full scale output voltage Quiescent current Power down current Power supply rejection ratio Channel separation Mute attenuation Resolution Total harmonic distortion plus noise Signal-to-noise ratio Maximum output power Maximum output voltage swing (THD+N)/S < 0.1% (THD+N)/S < 0.1% No digital input signal CAP=2.2uF (100Hz) CAP=10uF (100Hz) VFS=0.023663* 24 *VDD Parameter Conditions
MS6332
16-Bit Stereo Audio DAC & Headphone Driver
, VDD=3.3V, VSS=0V, f=1kHz, RL=32; unless otherwise specified) Min 1.60 1.60 50 61 70 62 86 49 2.5 Typ 1.65 1.65 1.87 3.6 0.35 55 66 75 67 -60 0.1 92 52 2.6 Max 1.70 1.70 4 1 16 -56 0.158 Unit V V V mA uA dB dB dB dB bits dB % dB mW Vpp
AC Characteristics
REV 1.0
3
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MOSA
TYPICAL PERFORMANCE CHARACTERISTICS
(Ta=25 , RL=32, sampling rate=4fs; unless otherwise specified)
MS6332
16-Bit Stereo Audio DAC & Headphone Driver
POWER DOWN CURRENT (uA)
QUIESCENT CURRENT (mA)
THD+N (%)
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=10uF
CAP=10uF
CAP=10uF
PSRR (dB)
PSRR (dB)
CAP=2.2uF
CAP=2.2uF
PSRR (dB)
CAP=2.2uF
VDD=5V VRR=-20dBV
VDD=3.3V VRR=-20dBV
VDD=2.7V VRR=-20dBV
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
PSRR vs. frequency
PSRR vs. frequency
PSRR vs. frequency
CHANNEL SEPARATION (dB)
MUTE ATTENUATION (dB)
THD+N (%)
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
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MOSA
TIMING AND DATA FORMAT
MS6332
16-Bit Stereo Audio DAC & Headphone Driver
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 RIGHT tr tHB tf tLB tHW tSW
WS
BCK
tcr LSB MSB tSD tHD
DATA
Fig.1
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.2
Format of input signals.
Data format (BCK, WS, DATA) Symbol Parameter VIL VIH Input LOW level Input HIGH level Input Leakage Current LOW Input Leakage Current HIGH Input Clock Frequency Bit Rate Data Input Word Select Input 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
Conditions
Min 0.7VDD 54 15 15 12 2 2 12
Typ -
Max 0.3VDD 10 10 18.4 18.4 384 12 12 -
Unit V V
l I IL l l I IH l f BCK
BR
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
REV 1.0
5
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MOSA
POWER DOWN AND MUTE FUNCTION
MS6332
16-Bit Stereo Audio DAC & Headphone Driver
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
5
Digital audio input
BCK WS DATA GND
CAP OUTR OUTL VDD
4 3
10uF
6 7 8
47uF 2 47uF 1 PHONE JACK
Headphone (32 )
VDD
Note :
Vo=1.95Vpp at VDD =3.3V
REV 1.0
6
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MOSA
EXTERNAL DIMENSIONS
MS6332
16-Bit Stereo Audio DAC & Headphone Driver
8
5
Symbol 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
H
E 1 4
D
A A1 B C D H E e L
L A A1 e B C
SOP8
TAPE AND REEL (Unit : mm)
2.0 0.30 0.05 4.0 1.75 0.3R MAX 5.5 0.05 12.0 0.3
5.4
0.05
1.5+0.1/-0.0 DIA
3.0 3.6 6.9
8.0 1.5 MIN 0.5 Radius Typical
2.0 1.7
SOP8
REV 1.0
7
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