參數(shù)資料
型號： TLV320AIC3111IRHBT
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： AUDIO AMPLIFIER, PQCC32
封裝： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁數(shù)： 87/156頁
文件大?。?/td> 1701K
代理商： TLV320AIC3111IRHBT
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
FrequencyNormalizedtofS
Magnitude
–
dB
ADCChannelResponseforDecimationFilter A
(RedLineCorrespondsto –73dB)
SLAS644B – JULY 2009 – REVISED OCTOBER 2009
www.ti.com
5.5.4.4.1 Decimation Filter A
This filter is intended for use at sampling rates up to 48 kHz. When configuring this filter, the oversampling
ratio of the ADC can either be 128 or 64. For highest performance, the oversampling ratio must be set
to 128.
Filter A can also be used for 96 kHz at an AOSR of 64.
Table 5-20. ADC Decimation-Filter-A Specifications
Parameter
Condition
Value (Typical)
Unit
AOSR = 128
Filter gain pass band
0…0.39 fS
0.062
dB
Filter gain stop band
0.55…64 fS
–73
dB
Filter group delay
17/fS
s
Pass-band ripple, 8 ksps
0…0.39 fS
0.062
dB
Pass-band ripple, 44.1 ksps
0…0.39 fS
0.05
dB
Pass-band ripple, 48 ksps
0…0.39 fS
0.05
dB
AOSR = 64
Filter gain pass band
0…0.39 fS
0.062
dB
Filter gain stop band
0.55…32 fS
–73
dB
Filter group delay
17/fS
s
Pass-band ripple, 8 ksps
0…0.39 fS
0.062
dB
Pass-band ripple, 44.1 ksps
0…0.39 fS
0.05
dB
Pass-band ripple, 48 ksps
0…0.39 fS
0.05
dB
Pass-band ripple, 96 ksps
0…20 kHz
0.1
dB
Figure 5-13. ADC Decimation-Filter-A Frequency Response
36
APPLICATION INFORMATION
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3111
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