參數(shù)資料
型號： TLV320AIC3110IRHBR
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)： 48/126頁
文件大?。?/td> 1528K
代理商： TLV320AIC3110IRHBR
SLAS647 – DECEMBER 2009
www.ti.com
ADC power up is controlled by writing to page 0 / register 81, bit D7. An ADC power-up condition can be
verified by reading page 0 / register 36, bit D6.
5.4.4
ADC Decimation Filtering and Signal Processing
The TLV320AIC3110 ADC channel includes built-in digital decimation filters to process the oversampled
data from the delta-sigma modulator to generate digital data at the Nyquist sampling rate with high
dynamic range. The decimation filter can be chosen from three different types, depending on the required
frequency response, group delay, and sampling rate.
5.4.4.1
ADC Processing Blocks
The TLV320AIC3110 offers a range of processing blocks which implement various signal processing
capabilities along with decimation filtering. These processing blocks give users the choice of how much
and what type of signal processing they may use and which decimation filter is applied.
The choices among these processing blocks allow the system designer to balance power conservation
and signal-processing flexibility. Less signal-processing capability reduces the power consumed by the
device. Table 5-16 gives an overview of the available processing blocks of the ADC channel and their
properties. The resource-class (RC) column gives an approximate indication of power consumption.
The signal processing blocks available are:
First-order IIR
Scalable number of biquad filters
Variable-tap FIR filter
AGC
The processing blocks are tuned for common cases and can achieve high anti-alias filtering or low group
delay in combination with various signal-processing effects such as audio effects and frequency shaping.
The available first-order IIR, biquad, and FIR filters have fully user-programmable coefficients.
Table 5-16. ADC Processing Blocks
Processing
Decimation
First-Order
Number of
Required
Resource
Channel
FIR
Blocks
Filter
IIR Available
Biquads
AOSR Value
Class
PRB_R4
Mono
A
Yes
0
No
128, 64
3
PRB_R5
Mono
A
Yes
5
No
128, 64
4
PRB_R6
Mono
A
Yes
0
25-tap
128, 64
4
PRB_R10
Mono
B
Yes
0
No
64
2
PRB_R11
Mono
B
Yes
3
No
64
2
PRB_R12
Mono
B
Yes
0
20-tap
64
2
PRB_R16
Mono
C
Yes
0
No
32
2
PRB_R17
Mono
C
Yes
5
No
32
2
PRB_R18
Mono
C
Yes
0
25-tap
32
2
28
APPLICATION INFORMATION
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3110
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