MS6821_1 Datasheet, PDF (1/29 Pages) MOSA ELECTRONICS – 4 Stereo Inputs, 2W BTL Stereo Output 16-bit Stereo DAC and Volume Control

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
R_L=4Ω, 2W at 5V, 0.8W at 3.3V, 360mW at 2.4V
R_L=8Ω, 1.3W at 5V, 0.53W at 3.3V, 250mW at 2.4V
‧BTL Output power, DAC Input
R_L=4Ω, 1.6W at 5V, 0.70W at 3.3V, 340mW at 2.4V
R_L=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 SOP28, 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.
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