MS6821
MS6821 is 4 Stereo inputs / 2W PA output integrated Audio DAC manufactured by MOSA.
FEATURES
- Operation range: 2.4V ~ 6.5V
- Volume control range
Gain: 0 to 21d B, 3d B/step Attenuation: 0 to
- 77.5d B, 1.25d B/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, 360m W at 2.4V RL=8Ω, 1.3W at 5V, 0.53W at 3.3V, 250m W at 2.4V
- BTL Output power, DAC Input
RL=4Ω, 1.6W at 5V, 0.70W at 3.3V, 340m W at 2.4V RL=8Ω, 0.83W at 5V, 0.35W at 3.3V, 170m W 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
- ponent less
- Reduce pop noise circuit
- Housed in TSSOP28 package, enhanced thermal
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
- 90m W 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, ponent less and small package TSSOP28, make the MS6821 ideally suitable for use in the portable digital audio equipments.
BLOCK DIAGRAM
REV 4
1/28 .mosanalog.
MOSA
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...