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参数资料
| 型号： | TAS5518PAGR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封装： | GREEN, PLASTIC, TQFP-64 |
| 文件页数： | 16/105页 |
| 文件大小： | 1514K |
| 代理商： | TAS5518PAGR |
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Introduction
10
SLES115 — August 2004
TAS5518
The DAP accepts 24-bit data signal from the serial data interface and outputs 32-bit data to the PWM section.
The DAP supports two configurations, one for 32-kHz – 96-kHz data and one for 176.4-kHz to 192-kHz data.
1.4.5.1
TAS5518 Audio Processing Configurations
The 32 96 kHz configuration supports eight channels of data processing that can be configured as eight
channels or six channels with two channels for separate stereo line outputs.
The 176.4 192 kHz configuration supports three channels of signal processing with five channels passed
though (or derived from the three processed channels).
To efficiently support the processing requirements of both multi-channel 32 – 96-kHz data and the two channel
176.4 and 192-kHz data, the TAS5518 supports separate audio processing features for 32 –96-kHz data rates
and for 176.4 and 192 kHz. See Table 2 for a summary of TAS5518 processing feature sets.
1.4.5.2
TAS5518 Audio Signal Processing Functions
The DAP provides 10 primary signal processing functions.
1. The data processing input has a full 8x8 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 auto mute.
3. Seven biquads per channel
4. Four soft bass and treble tone controls with ±18 dB range, programmable corner frequencies, and 2nd
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 are provided
used as input parameters using the maximum RMS (master volume x individual channel volume).
8. 8x2 output mixer (channels 16). Each output can be any ratio of any two signal processed channels.
9. 8x3 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 TAS5518 and then
select when needed.
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相关代理商/技术参数 |
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|---|---|
| TAS5518PAGRG4 | 功能描述:音频 DSP 8 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TAS5538 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TAS5612L-TAS5614LDDVEVM |
| TAS5538DGG | 制造商:TI 制造商全称:Texas Instruments 功能描述:TAS5612L-TAS5614LDDVEVM |
| TAS5538DGGR | 制造商:Texas Instruments 功能描述:audio processor |
| TAS5548 | 制造商:TI 制造商全称:Texas Instruments 功能描述:8-Channel HD Compatible Audio Processor with ASRC and PWM Output |
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