MS6334 Datasheet, PDF (1/17 Pages) MOSA ELECTRONICS – 16-Bit Stereo Audio DAC Integrated Headphone Driver with Volume Control

MOSA
MS6334/6335
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 V_DD=3.3V
(Audio code = 0000H)
‧Mute function
‧Flexibility power management
‧No pop-noise
‧No zero crossing distortion
‧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
‧Cost effective
‧Housed in SSOP20, SSOP16, QFN16 package
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
SDA SCL AO/CS MODE
Line-Lin Line-Lout HP-VDD HP-VSS
REV 1.0
BCK
WS
DATA
Control Interface
DAC
-
HP
+
Volume
OPAmp ^Control
+
Mute
HP
-
HP-Lout
HP-Rout
AVDD AVSS DVDD DVSS CAP
Line-Rin Line-Rout
1


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