Datasheet

Dig Mic
BiaLDO
PWDNZ
MICBIAS2
CLK=50*Fs
Mic
amp
right
DIG.MIC.1or
.MICSUB.M
1.8V
2 .2V
MICBIAS1
Mic
amp
left
.MAIN.PMIC
MIC.MAIN.M
1.8V
2 .2V
AnalogMic
Bias
HSMICBIAS
DIG.MIC.CLK1
(MuxedwithBluetooth
interface)
Comp
Comp
Comp
Comp
PWDN
AnalogMic
Bias
Analogmicrophone
or
digitalmicrophone
Analogmicrophone
(headsetmic)
Dig Mic
BiaLDO
PWDNZ
AnalogMic
Bias
PWDN
Analogmicrophone
or
digitalmicrophone
DIG.MIC.CLK0
(MuxedwithBluetooth
interface)
DIG.MIC.0or
MIC.SUB.P
2 .2V
032-032
TPS65950
www.ti.com SWCS032E–OCTOBER 2008–REVISED JANUARY 2011
Figure 6-19. Analog and Digital Microphone Multiplexing
6.2.1.1 Analog Microphone Bias Module Characteristics
Table 6-16 lists the characteristics of the analog microphone bias module.
Table 6-16. Analog Microphone Bias Module Characteristics
Parameter Test Conditions Min Typ Max Unit
Bias voltage 2.15 2.2 2.25 V
Load current 1 mA
Copyright © 2008–2011, Texas Instruments Incorporated Audio/Voice Module 85
Submit Documentation Feedback
Product Folder Link(s): TPS65950