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參數(shù)資料
| 型號(hào)： | TAS3103DBTRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| 封裝： | GREEN, PLASTIC, TSSOP-38 |
| 文件頁(yè)數(shù)： | 113/148頁(yè) |
| 文件大?。?/td> | 1247K |
| 代理商： | TAS3103DBTRG4 |
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38
All input crossbar mixers use signed 5.23 format mixer gain coefficients and all are programmable via the I2C bus.
The 5.23 format provides a range of gain adjustment from 223 (138 dB) to 24 – 1 (23.5 dB).
3.3
3D Effects Block
The 3D effects block, shown in Figure 310, performs the first suite of processing tasks conducted on the incoming
serial audio data streams. The TAS3103 has three monaural channels—CH1, CH2, and CH3. CH1 and CH2 share
the same effects block, as well as the same dynamic range compression block. CH 3 has its own effects block and
its own dynamic range compression block. In typical two TAS3103 chip configurations for processing 5.1 audio,
monaural channels CH1 and CH2 are used to process left/right front and left/right surround audio components, and
CH3 is used to process the subwoofer and center audio components. To support such a processing structure, the
effects block for CH1/CH2 offers more option for inserting audio effects into the audio data stream than does the
effects block for CH3.
3.3.1
CH1/CH2 Effects Block
This block consists of five signal flow paths, starting at processing nodes a, b, c, g, and h. All five paths contain four
programmable biquad filters, and paths a and b contain reverb delay lines as well. Nodes a, b and c can be sourced
by any of the input nodes A, B, C, D, E, and F (SDIN1, SDIN2, SDIN3). Nodes g and h can be sourced by input nodes
G and H respectively (SDIN4) and/or by weighted replicas of the data on nodes A and B respectively. Nodes g and
h can also be sourced by the same weighted replica of the data on node f. Node c can also be sourced by weighted
replicas of the data on both node a and node b.
3D effects processing typically consist of installing sound direction effects. Sound direction effects are typically
created by the use of three major components.
Time differentiation
Loudness differentiation
Spectral differentiation
Time differentiation is achieved by using the paths containing the reverb delay elements. Loudness differentiation
is achieved both by the mixers feeding the five paths and the two mixers located at the output of each of the five paths.
Spectral differentiation is achieved using the four biquad filters located in each path.
3.3.2
CH3 Effects Block
This block, starting at node f, typically processes center and sub-woofer audio components. Time and spectral
differentiation with respect of CH1 and CH2 can be realized via the reverb delay line and the four biquad filters.
Loudness differentiation can be achieved by adjusting the volume level of CH3. Weighted replicas of the effects block
output for CH1 and CH2 can also be summed into the output of the CH3 effects block. This capability is typically used
when processing the center channel audio component.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TAS3103DBTR | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| TAS3103IDBTRG4 | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| TAS3103IDBTR | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| TAS3103IDCP | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| TAS3103DBTG4 | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS3103EVM | 功能描述:音頻 DSP TAS3103 Eval Mod 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 |
| TAS3103IDBT | 功能描述:音頻 DSP Digital Audio Processor 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 |
| TAS3103IDBTR | 功能描述:音頻 DSP Digital Audio Processor 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 |
| TAS3103IDBTRG4 | 功能描述:音頻 DSP Digital Audio Processor 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 |
| TAS3108 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:AUDIO DIGITAL SIGNAL PROCESSORS |
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