MS6334 Datasheet, PDF (13/17 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


APPLICATION INFORMATION
A MP3 with FM application
The analog and digital power can be supplied as single voltage.
MCU
Interface
Audio
Decoder
MCU
Interface
Audio
Decoder
0.1uF
MS6334
15 _DVDD
7 _DVSS
8 _MODE
14 _AO/CS
12 _SCL
13 _SDA
7 _BCK
8 _WS
9 _DATA
MS6335
SCL
SDA
BCK
WS
DATA
HP-VDD ¹
HP-VSS ²⁰
AVSS ⁶
AVDD ¹⁶
CAP ⁵
0.1uF
0.1uF
300K
2.2uF
100uF
Supply
2.7~5.5V
Line-Lin ¹⁷
RF
Line-Lout ¹⁸
Line-Rin ⁴
RF
Line-Rout ³
RFM
CF
RFM
CF
FM-L
FM-R
FM
Module
HP-Lout ¹⁹
47uF 32Ƹ
HP-Rout ²⁰
47uF 32Ƹ
Headphone






HP-VDD
HP-VSS
VSS
VDD
CAP
Line-Lin
Line-Lout
Line-Rin
Line-Rout
HP-Lout
HP-Rout
0.1uF
0.1uF
100uF
300K
2.2uF
RFM
RF
CF
RFM
RF
CF
Supply
2.7~5.5V
FM-L
FM-R
FM
Module
47uF 32Ƹ
47uF 32Ƹ
Headphone
Note :
Vo=0.02269*R_F*V_DD Vpp at 0dB gain
R_F//C_F to decide –3dB point
For V_DD=3V, R_L=32Ω, R_F =24k, C_F =390pF, Vo=1.63Vpp
R_L=16Ω, R_F =22k, C_F =470pF, Vo=1.50Vpp
FM mode, V_Line DC Gain = R_F/ R_FM
Fig.7 MP3 with FM application circuit.
REV 1.0
13
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