Datasheet

Record- Paused
ADCPowerDown
Update
DigitalFilter
Coefficients
ADCPowerUP
Wait20ms
VolumeRampDown
SoftMute
Restore Previous
VolumeLevel(Ramp)
in(B)ms
Record- Continue
Wait(A)ms
Forf =32kHz
S
® Wait10ms(min)
Forf =48kHz Wait8ms(min)
S
®
For =32kHz ®f 10ms
Forf =48kHz 8ms
S
S
®
ADCVolumeRampDownWAIT Time(A)
ADCVolumeRampUp Time(B)
F0023-02
TLV320AIC3120
www.ti.com SLAS653A –FEBRUARY 2010–REVISED MAY 2012
Figure 5-16. Updating ADC Digital Filter Coefficients During Record
5.5.6 Digital Microphone Function
In addition to supporting analog microphones, the TLV320AIC3120 can also interface to one digital
microphone using using the mono ADC channel. Figure 5-17 shows the digital microphone interface block
diagram and Figure 5-18 shows the timing diagram for the digital microphone interface.
Copyright © 2010–2012, Texas Instruments Incorporated APPLICATION INFORMATION 37
Submit Documentation Feedback
Product Folder Link(s): TLV320AIC3120