參數(shù)資料
型號： TLV320AIC36IZQE
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA80
封裝： 5 X 5 MM, GREEN, PLASTIC, VFBGA-80
文件頁數(shù)： 97/165頁
文件大小： 1895K
代理商： TLV320AIC36IZQE
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Magnitude-dB
FrequencyNormalizedw.r.t.FS
ADCChannelResponseforDecimationFilterC
(Redlinecorrespondsto-60dB)
www.ti.com
SBAS387A – MAY 2009 – REVISED JUNE 2010
5.8.4.3
Decimation Filter C
Filter C along with AOSR of 32 is specially designed for 192 kSPS operation for the ADC. The pass band
which extends up to 0.11*Fs (corresponds to 21 kHz) is suited for audio applications.
Table 5-10. ADC Decimation Filter C, Specifications
Parameter
Condition
Value (Typical)
Units
Filter Gain from 0 to 0.11 Fs
0…0.11 Fs
±0.033
dB
Filter Gain from 0.28 Fs to 16 Fs
0.28 Fs…16 Fs
–60
dB
Filter Group Delay
11/Fs
Sec.
Pass Band Ripple, 8 ksps
0…0.11 Fs
0.033
dB
Pass Band Ripple, 44.1 ksps
0…0.11 Fs
0.033
dB
Pass Band Ripple, 48 ksps
0…0.11 Fs
0.032
dB
Pass Band Ripple, 96 ksps
0…0.11 Fs
0.032
dB
Pass Band Ripple, 192 ksps
0…20 kHz
0.086
dB
Figure 5-15. ADC Decimation Filter C, Frequency Response
5.8.5
ADC Data Interface
The decimation filter and signal processing block in the ADC channel passes 24-bit data words to the
audio serial interface once every cycle of Fs,ADC. During each cycle of Fs,ADC, a pair of data words (for
left and right channel) are passed. The audio serial interface rounds the data to the required word length
of the interface before converting to serial data as per the different modes for audio serial interface.
Copyright 2009–2010, Texas Instruments Incorporated
APPLICATION INFORMATION
37
Product Folder Link(s): TLV320AIC36
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