參數(shù)資料
型號(hào)： TAS3202PAGR
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： GREEN, PLASTIC, TQFP-64
文件頁(yè)數(shù)： 34/66頁(yè)
文件大?。?/td> 817K
代理商： TAS3202PAGR
SLES208B – JUNE 2009 – REVISED MARCH 2011
www.ti.com
2
Functional Description
2.1
Analog Input/Mux/Stereo ADC
These modules allow two differential analog stereo inputs to be sent to one ADC to be converted to digital
data. The input multiplexers include a preamplifier. This amplifier is driving the ADC, and it is digitally
controlled with changes synchronized with the sample clock of the ADC. Minimal crosstalk between
selected channels and unselected channels is maintained. When inputs are not needed, they are
configured for minimal noise. Also included in this module is one fully differential oversampled stereo
ADC. The ADC is a sigma-delta modulator with 256 times oversampling ratio. Because of the
oversampling nature of the audio ADC and integrated digital decimation filter, requirements for analog
anti-aliasing filtering are relaxed. Filter performance for the ADC is specified under physical
characteristics.
2.2
Stereo DAC
This module includes one stereo audio DAC, which consists of a digital interpolation filter, digital
sigma-delta modulator, and an analog reconstruction filter. The DAC can operate at a maximum of
48 kHz. The DAC upsamples the incoming data by 128 and performs interpolation filtering and processing
on this data before conversion to a stereo analog output signal. The sigma-delta modulator always
operates at a rate of 128Fs, which ensures that quantization noise generated within the modulator stays
low within the frequency band below Fs/2.4 at all sample rates. The digital interpolation filters for
interpolation from Fs to 8Fs are included in the audio DSP upper memory (reserved for analog
processing), while interpolation from 8Fs to 128Fs is done in a dedicated hardware sample and hold filter.
The TAS3202 includes one stereo line driver output. The line driver is capable of driving up to a 10-k
load. The stereo output can be in power-down mode when not used. Popless operation is achieved by
conforming to start and stop sequences in the device controller code.
2.3
Analog Reference System
This module provides all internal references needed by the analog modules. It also provides bias currents
for all analog blocks. External decoupling capacitors are needed along with an external 1%-tolerance
resistor to set the internal bias currents. It includes a band-gap reference and several voltage buffers and
a tracking current reference. The TAS3202 also uses an internally generated mid-rail supply that is used
to rereference all analog inputs and is present on all analog outputs. VMID is the analog mid-rail supply
and can be used when buffered externally to rereference the analog inputs and outputs. The voltage
reference REXT requires a 22-k
1% resistor to ground. The reference system can be powered down
separately.
2.4
Power Supply
The power supply contains supply regulators that provide analog and digital regulated power for various
sections of the TAS3202. Only one external 3.3-V supply is required. All other voltages are generated on
chip from the external 3.3-V supply.
4
Functional Description
Copyright 2009–2011, Texas Instruments Incorporated
Product Folder Link(s): TAS3202
相關(guān)PDF資料
PDF描述
TAS3202PAG SPECIALTY CONSUMER CIRCUIT, PQFP64
TAS3204PAGR SPECIALTY CONSUMER CIRCUIT, PQFP64
TAS3204PAG SPECIALTY CONSUMER CIRCUIT, PQFP64
TAS3218IPZPR SPECIALTY CONSUMER CIRCUIT, PQFP100
TAS3218IPZP SPECIALTY CONSUMER CIRCUIT, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TAS3204 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:AUDIO DSP WITH ANALOG INTERFACE
TAS3204EVM 功能描述:音頻 IC 開(kāi)發(fā)工具 TAS3204EVM Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類(lèi)型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
TAS3204EVM-LC 制造商:Texas Instruments 功能描述:TAS3204EVM EVALUATION MODULE - Boxed Product (Development Kits)
TAS3204PAG 功能描述:音頻 DSP Hi Perf Dual Core DSP/MCU Aud Proc RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TAS3204PAGR 功能描述:音頻 DSP Hi Perf Dual Core DSP/MCU Aud Proc RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*