MS6334/6335
MOSA
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
16-Bit Stereo Audio DAC Integrated Headphone
Driver with Volume Control
FEATURES
‧Operation range: 2.7V~5.5V
‧Volume control range : 6dB to –39dB, 1.5dB/step
‧Low power consumption, 17mW at VDD=3.3V
(Audio code = 0000H)
‧Audio format : Right justified, I2S
‧Serial control interface : I2C, SPI
‧Output voltage adjusted by the external resisters
‧Excellent Power Supply Rejection Ratio(PSRR)
‧Component less
‧Mute function
‧Flexibility power management
‧No pop-noise
‧Cost effective
‧Housed in SSOP20, SSOP16, QFN16 package
‧No zero crossing distortion
APPLICATIONS
Multimedia system, MP3, PDA, Portable Digital Audio.
DESCRIPTION
The MS6334 is a 16-bits voltage-output Digital-to-Analog Converter (DAC) integrated class AB stereo headphone
driver with volume control. 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.
The MS6334 has good feature for portable equipment, these features include the low voltage operation, low power
consumption, flexible power management, component less and small package SSOP20, make the MS6334 ideally
suited for use in portable digital audio equipments.
The MS6335 only has I2C interface, the smaller package SSOP16, QFN16 , and other functions are the same as the
MS6334.
BLOCK DIAGRAM
Line-Lin
SDA SCL AO/CS MODE
Control Interface
Line-Lout HP-VDD HP-VSS
-
HP-Lout
HP-Rout
HP
+
Volume
Control
BCK
WS
OPAmp
DAC
DATA
Mute
+
-
HP
AVDD AVSS DVDD DVSS CAP
Line-Rin Line-Rout
REV 1.0
1
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