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, I
2
S
‧Serial
control interface : I
2
C, 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 I
2
C 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-V
DD
HP-V
SS
Control Interface
-
BCK
WS
DATA
DAC
+
OPAmp
+
-
Volume
Control
Mute
HP
HP-Lout
HP
HP-Rout
AV
DD
AV
SS
DV
DD
DV
SS
CAP
Line-Rin
Line-Rout
REV 1.0
1
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MOSA [ MOSA ELECTRONICS ]
