參數資料
型號： TLV320AIC3120IRHBT
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： 88/150頁
文件大?。?/td> 1507K
代理商： TLV320AIC3120IRHBT
Interp.
Filter A
BiQuad
C
BiQuad
B
BiQuad
A
to
Modulator
Digital
Volume
Ctrl
from
Interface
SLAS653 – FEBRUARY 2010
www.ti.com
5.6.1.1
DAC Processing Blocks
The TLV320AIC3120 implements signal-processing capabilities and interpolation filtering via processing
blocks. These fixed processing blocks give users the choice of how much and what type of signal
processing they may use and which interpolation filter is applied.
The choices among these processing blocks allow the system designer to balance power conservation
and signal-processing flexibility. Table 5-19 gives an overview of all available processing blocks of the
DAC channel and their properties. The resource-class column gives an approximate indication of power
consumption for the digital (DVDD) supply; however, based on the out-of-band noise spectrum, the analog
power consumption of the drivers (HPVDD) may differ.
The signal processing blocks available are:
First-order IIR
Scalable number of biquad filters
The processing blocks are tuned for common cases and can achieve high image rejection or low group
delay in combination with various signal processing effects such as audio effects and frequency shaping.
The available first-order IIR and biquad filters have fully user-programmable coefficients.
Table 5-19. Overview – Mono DAC Predefined Processing Blocks
Processing
First-Order
Number of
Resource
Interpolation Filter
DRC
Block No.
IIR Available
Biquads
Class
PRB_P4
A
No
3
No
4
PRB_P5
A
Yes
6
Yes
6
PRB_P6
A
Yes
6
No
6
PRB_P12
B
Yes
0
No
3
PRB_P13
B
No
4
Yes
4
PRB_P14
B
No
4
No
4
PRB_P15
B
Yes
6
Yes
6
PRB_P16
B
Yes
6
No
4
PRB_P20
C
Yes
0
No
2
PRB_P21
C
Yes
4
Yes
3
PRB_P22
C
Yes
4
No
2
5.6.1.2
DAC Processing Blocks – Signal Chain Details
5.6.1.2.1 Three Biquads, Filter A
Figure 5-19. Signal Chain for PRB_P4
42
APPLICATION INFORMATION
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3120
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TLV320AIC31IRHBRG4 功能描述:接口—CODEC Lo-Pwr Ster Codec for Port Aud/Teleph RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
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