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參數資料
型號： TLV320AIC3120IRHBR
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： 90/150頁
文件大小： 1507K
代理商： TLV320AIC3120IRHBR
Interp.
FilterC
DRC
HPF
IIR
to
Modulator
Digital
Volume
Ctrl
BiQuad
D
BiQuad
C
BiQuad
B
BiQuad
A
from
Interface
Interp.
FilterC
BiQuad
D
BiQuad
C
BiQuad
B
BiQuad
A
IIR
to
modulator
Digital
Volume
Ctrl
from
Interface
SLAS653 – FEBRUARY 2010
www.ti.com
5.6.1.2.7 Four Biquads, First-Order IIR, DRC, Filter C
Figure 5-25. Signal Chain for PRB_P21
5.6.1.2.8 Four Biquads, First-Order IIR, Filter C
Figure 5-26. Signal Chain for PRB_P22
5.6.1.3
DAC User-Programmable Filters
Depending on the selected processing block, different types and orders of digital filtering are available. Up
to six biquad sections are available for specific processing blocks.
The coefficients of the available filters are arranged as sequentially-indexed coefficients in two banks. If
adaptive filtering is chosen, the coefficient banks can be switched in real time.
When the DAC is running, the user-programmable filter coefficients are locked and cannot be accessed
for either read or write.
However, the TLV320AIC3120 offers an adaptive filter mode as well. Setting page 8 / register 1, bit D2 = 1
turns on double buffering of the coefficients. In this mode, filter coefficients can be updated through the
host and activated without stopping and restarting the DAC. This enables advanced adaptive filtering
applications.
In the double-buffering scheme, all coefficients are stored in two buffers (buffers A and B). When the DAC
is running and adaptive filtering mode is turned on, setting page 8 / register 1, bit D0 = 1 switches the
coefficient buffers at the next start of a sampling period. This bit is set back to 0 after the switch occurs. At
the same time, page 8 / register 1, bit D1 toggles.
The flag in page 8 / register 1, bit D1 indicates which of the two buffers is actually in use.
Page 8 / register 1, bit D1 = 0: buffer A is in use by the DAC engine; bit D1 = 1: buffer B is in use.
While the device is running, coefficient updates are always made to the buffer not in use by the DAC,
regardless of the buffer to which the coefficients have been written.
44
APPLICATION INFORMATION
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3120
相關PDF資料
PDF描述
TLV320AIC3120IRHBT AUDIO AMPLIFIER, PQCC32
TLV320AIC31IRHBRG4 SPECIALTY CONSUMER CIRCUIT, PQCC32
TLV320AIC31IRHBR SPECIALTY CONSUMER CIRCUIT, PQCC32
TLV320AIC31IRHBTG4 SPECIALTY CONSUMER CIRCUIT, PQCC32
TLV320AIC31IRHBT SPECIALTY CONSUMER CIRCUIT, PQCC32
相關代理商/技術參數
參數描述
TLV320AIC3120IRHBT 功能描述:接口—CODEC Low-Pwr Audio CODEC 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
TLV320AIC31EVM 功能描述:音頻 IC 開發工具 TLV320AIC31 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
TLV320AIC31EVM-PDK 功能描述:音頻 IC 開發工具 TLV320AIC31-PDK Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
TLV320AIC31IRHBR 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
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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