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參數(shù)資料
| 型號： | TAS5508PAG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 19/105頁 |
| 文件大?。?/td> | 1286K |
| 代理商： | TAS5508PAG |
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2.2.5.2 TAS5508 Audio Signal-Processing Functions
TAS5508
8-Channel Digital Audio PWM Processor
SLES091D – FEBRUARY 2004 – REVISED JULY 2009
www.ti.com
To support efficiently the processing requirements of both multichannel 32-kHz to 96-kHz data and the
2-channel 176.4-kHz and 192-kHz data, the TAS5508 has separate audio-processing features for 32-kHz
to 96-kHz data rates and for 176.4 kHz and 192 kHz. See Table 2-2 for a summary of TAS5508
processing feature sets.
The DAP provides 10 primary signal-processing functions:
1. The data-processing input has a full 8
＝8 input crossbar mixer. This enables each input to be any ratio
of the eight input channels.
2. Two I2C programmable threshold detectors in each channel support automute.
3. Seven biquads per channel
4. Four soft bass and treble tone controls with
＝18-dB range, programmable corner frequencies, and
second-order slopes. In 8-channel mode, bass and treble controls are normally configured as follows:
–
Bass and treble 1: Channel 1 (left), channel 2 (right), and channel 7 (center)
–
Bass and treble 2: Channel 3 (left surround) and channel 4 (right surround)
–
Bass and treble 3: Channel 5 (left back surround) and channel 6 (right back surround)
–
Bass and treble 4: Channel 8 (subwoofer)
5. Individual channel and master volume controls. Each control provides an adjustment range of 18 dB to
–127 dB. This permits a total volume device control range of 36 dB to –127 dB plus mute. The master
volume control can be configured to control six or eight channels. The DAP soft volume and mute
update interval is I2C programmable. The update is performed at a fixed rate regardless of the sample
rate.
6. Programmable loudness compensation that is controlled via the combination of the master and
individual volume settings.
7. Two dual-threshold dual-rate dynamic range compressors (DRCs). The volume gain values provided
are used as input parameters using the maximum RMS (master volume
＝ individual channel volume).
8. 8
＝2 output mixer (channels 1–6). Each output can be any ratio of any two signal-processed channels.
9. 8
＝3 output mixer (channels 7 and 8). Each output can be any ratio of any three signal-processed
channels.
10. The DAP maintains three sets of coefficient banks that are used to maintain separate sets of
sample-rate-dependent parameters for the biquad, tone controls, loudness, and DRC in RAM. These
can be set to be automatically selected for one or more data sample rates or can be manually selected
under I2C program control. This feature enables coefficients for different sample rates to be stored in
the TAS5508 and then selected when needed.
20
Description
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| TAS5508PAGG4 | 功能描述:音頻 DSP 8Ch Dig Aud PWM 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 |
| TAS5508PAGR | 功能描述:音頻 DSP 8Ch Dig Aud PWM 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 |
| TAS5508PAGRG4 | 功能描述:音頻 DSP 8Ch Dig Aud PWM 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 |
| TAS5514BQ1DKDEVM | 功能描述:音頻 IC 開發(fā)工具 TAS5514BQ1DKD EVAL MOD RoHS:否 制造商:Texas Instruments 產(chǎn)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 |
| TAS5514BTDKDRQ1 | 功能描述:音頻放大器 4-CH Auto Digital Amps RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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