TLV320AIC3120 Datasheet, PDF (35/155 Pages) Texas Instruments – Low-Power Mono Audio Codec With Embedded miniDSP and Mono Class-D Speaker Amplifier

TLV320AIC3120
www.ti.com
SLAS653A – FEBRUARY 2010 – REVISED MAY 2012
ADC Channel Response for Decimation Filter A
(Red Line Corresponds to –73 dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Frequency Normalized to f_S
Figure 5-13. ADC Decimation Filter A, Frequency Response
5.5.4.4.2 Decimation Filter B
Filter B is intended to support sampling rates up to 96 kHz at an oversampling ratio of 64.
Table 5-17. ADC Decimation Filter B, Specifications
Parameter
AOSR = 64
Filter-gain pass band
Filter-gain stop band
Filter group delay
Pass-band ripple, 8 ksps
Pass-band ripple, 44.1 ksps
Pass-band ripple, 48 ksps
Pass-band ripple, 96 ksps
Condition
Value (Typical)
Unit
0…0.39 f_S
±0.077
dB
0.6 f_S…32 f_S
–46
dB
11/f_S
s
0…0.39 f_S
0.076
dB
0…0.39 f_S
0.06
dB
0…0.39 f_S
0.06
dB
0…20 kHz
0.11
dB
ADC Channel Response for Decimation Filter A
(Red Line Corresponds to –44 dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Frequency Normalized to f_S
Figure 5-14. ADC Decimation Filter B, Frequency Response
Copyright © 2010–2012, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Link(s): TLV320AIC3120
APPLICATION INFORMATION
35