Audio DAC. MS6821 Datasheet


MS6821 DAC. Datasheet pdf. Equivalent


Part Number

MS6821

Description

4 Stereo inputs / 2W PA output integrated Audio DAC

Manufacture

MOSA

Total Page 28 Pages
Datasheet
Download MS6821 Datasheet


MS6821
MOSA
MS6821
4 Stereo inputs / 2W PA output integrated Audio DAC and Volume Control
4 Stereo Inputs, 2W BTL Stereo Output
16-bit Stereo DAC and Volume Control
FEATURES
Operation range: 2.4V ~ 6.5V
Volume control range
Gain: 0 to 21dB, 3dB/step
Attenuation: 0 to –77.5dB, 1.25dB/step
4 stereo inputs (mixed with an audio DAC)
Output mode : Speaker( BTL)/Headphone(SE)
BTL Output power, THD+N=1%, Stereo Input
RL=4Ω, 2W at 5V, 0.8W at 3.3V, 360mW at 2.4V
RL=8Ω, 1.3W at 5V, 0.53W at 3.3V, 250mW at 2.4V
BTL Output power, DAC Input
RL=4Ω, 1.6W at 5V, 0.70W at 3.3V, 340mW at 2.4V
RL=8Ω, 0.83W at 5V, 0.35W at 3.3V, 170mW at 2.4V
Built-in 16-bit Audio DAC
Audio format : I2S, Right justified, Left justified
Control interface : I2C
Excellent Power Supply Rejection Ratio(PSRR)
Flexibility power management
Component less
Reduce pop noise circuit
Housed in TSSOP28 package, enhanced thermal
PAD
APPLICATIONS
Multimedia system, Portable Digital Audio.
DESCRIPTION
The MS6821 is a 16-bits voltage-output Digital-to-Analog Converter (DAC) integrated class AB stereo headphone
driver and stereo speaker power amplifier. It can drive 2W of continuous average power into a dual 4Ω bridged-tied
(BTL) speaker or 2 * 90mW into stereo 32Ω single ended (SE) headphone. The 16-bit DAC supports general and
popular formats as I2S, Right justified. The volume control offers wide range of gain and attenuation for 4-set stereo
input. All of the functions are set by I2C interface.
The MS6821 has good feature for portable equipment, including wide voltage operation 2.4V ~ 6.5V, low power
consumption, flexible power management, component less and small package TSSOP28, make the MS6821 ideally
suitable for use in the portable digital audio equipments.
BLOCK DIAGRAM
REV 4
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MS6821
MOSA
MS6821
4 Stereo inputs / 2W PA output integrated Audio DAC and Volume Control
PIN CONFIGURATION
Symbol
WS
BCK
CAP
RIN1
RIN2
RIN3
RIN4
VSS
PVDDR
OUTR-
OUTR+
GND
PVSSR
DACR
DACL
PVSSL
GND
OUTL+
OUTL-
PVDDL
VDD
LIN4
LIN3
LIN2
LIN1
SDA
SCL
DATA
Pin Description
1 Audio word select input
2 Audio bit clock input
3 Capacitor connected
4 Right channel input 1
5 Right channel input 2
6 Right channel input 3
7 Right channel input 4
8 Negative supply voltage
WS 1
BCK 2
9
Positive supply voltage for right
channel of power amplifier
10
SE right channel output or negative
output of BTL right channel
11 Positive output of BTL right channel
CAP 3
RIN1 4
RIN2 5
12 Connected to ground
RIN3 6
13
Negative supply voltage for right
channel of power amplifier
RIN4 7
14 DAC right channel output
VSS 8
15 DAC Left channel output
PVDDR 9
16
Negative supply voltage for left channel
of power amplifier
OUTR- 10
17 Connected to ground
18 Positive output of BTL left channel
OUTR+ 11
19
SE left channel output or negative
output of BTL left channel
20
Positive supply voltage for left channel
of power amplifier
21 Positive supply voltage
GND 12
PVSSR 13
DACR 14
22 Left channel input 4
23 Left channel input 3
24 Left channel input 2
25 Left channel input 1
26 I2C data input
27 I2C clock input
28 Audio data input
Note: 1. SE: Single Ended. BTL: Bridged-Tied Load
28 DATA
27 SCL
26 SDA
25 LIN1
24 LIN2
23 LIN3
22 LIN4
21 VDD
20 PVDDL
19 OUTL-
18 OUTL+
17 GND
16 PVSSL
15 DACL
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Features MOSA MS6821 4 Stereo inputs / 2W PA out put integrated Audio DAC and Volume Con trol 4 Stereo Inputs, 2W BTL Stereo Ou tput 16-bit Stereo DAC and Volume Contr ol FEATURES •Operation range: 2.4V ~ 6.5V •Volume control range Gain: 0 t o 21dB, 3dB/step Attenuation: 0 to –7 7.5dB, 1.25dB/step •4 stereo inputs ( mixed with an audio DAC) •Output mode : Speaker( BTL)/Headphone(SE) •BTL O utput power, THD+N=1%, Stereo Input RL= 4Ω, 2W at 5V, 0.8W at 3.3V, 360mW at 2 .4V RL=8Ω, 1.3W at 5V, 0.53W at 3.3V, 250mW at 2.4V •BTL Output power, DAC Input RL=4Ω, 1.6W at 5V, 0.70W at 3.3V , 340mW at 2.4V RL=8Ω, 0.83W at 5V, 0. 35W at 3.3V, 170mW at 2.4V •Built-in 16-bit Audio DAC •Audio format : I2S , Right justified, Left justified •Co ntrol interface : I2C •Excellent Powe r Supply Rejection Ratio(PSRR) •Flexi bility power management •Component le ss •Reduce pop noise circuit • Hous ed in TSSOP28 package, enhanced thermal PAD APPLICATIONS Multimedia system, Portable Digital Audio. DESCRIPTION The MS6821 is a 16-bits.
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