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| 型号： | TLV320AIC3253IRGER |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC24 |
| 封装： | 4 X 4 MM, PLASTIC, QFN-24 |
| 文件页数： | 14/35页 |
| 文件大小： | 738K |
| 代理商： | TLV320AIC3253IRGER |
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SLOS631 – MARCH 2010
ADC Processing Blocks — Overview
The TLV320AIC3253 ADC channel includes a built-in digital decimation filter to process the oversampled data
from the PDM input to generate digital data at 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.
ADC / Digital Microphone Processing Blocks
The TLV320AIC3253 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 choice between these processing blocks is part of the PowerTune strategy to balance power conservation
and signal-processing flexibility. Less signal-processing capability reduces the power consumed by the device.
Table 8 gives an overview of the available processing blocks of the ADC channel and their properties. The
Resource Class Column (RC) 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
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 8. ADC / Digital Microphone Processing Blocks
Processing
Channel
Decimation
1st Order
Number
FIR
Required
Resource
Blocks
AOSR Value
Filter
IIR Available
BiQuads
Class
PRB_R1(1)
Stereo
A
Yes
0
No
128,64
6
PRB_R2
Stereo
A
Yes
5
No
128,64
8
PRB_R3
Stereo
A
Yes
0
25-Tap
128,64
8
PRB_R4
Right
A
Yes
0
No
128,64
3
PRB_R5
Right
A
Yes
5
No
128,64
4
PRB_R6
Right
A
Yes
0
25-Tap
128,64
4
PRB_R7
Stereo
B
Yes
0
No
64
3
PRB_R8
Stereo
B
Yes
3
No
64
4
PRB_R9
Stereo
B
Yes
0
20-Tap
64
4
PRB_R10
Right
B
Yes
0
No
64
2
PRB_R11
Right
B
Yes
3
No
64
2
PRB_R12
Right
B
Yes
0
20-Tap
64
2
PRB_R13
Stereo
C
Yes
0
No
32
3
PRB_R14
Stereo
C
Yes
5
No
32
4
PRB_R15
Stereo
C
Yes
0
25-Tap
32
4
PRB_R16
Right
C
Yes
0
No
32
2
PRB_R17
Right
C
Yes
5
No
32
2
PRB_R18
Right
C
Yes
0
25-Tap
32
2
(1)
Default
For more detailed information see the Application Reference Guide, SLAU303
Copyright 2010, Texas Instruments Incorporated
21
Product Folder Link(s): TLV320AIC3253
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TLV320AIC3253IRGET | 功能描述:接口—CODEC Ultra Low Pwr Stereo Audio Codec RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| TLV320AIC3253IYZKR | 功能描述:接口—CODEC Ultra Low Pwr Stereo Audio Codec RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| TLV320AIC3253IYZKT | 功能描述:接口—CODEC Ultra Low Pwr Stereo Audio Codec RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| TLV320AIC3254 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Ultra Low Power Stereo Audio Codec With Embedded miniDSP |
| TLV320AIC3254_09 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Ultra Low Power Stereo Audio Codec With Embedded miniDSP |
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