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| 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： | 54/105页 |
| 文件大小： | 1514K |
| 代理商： | TAS5518PAGR |
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TAS5518 Controls and Status
44
SLES115 — August 2004
TAS5518
Now when the audio media changes, the TAS5518 automatically detects the incoming sample rate and
automatically switches to the appropriate bank.
In this example any sample rates other then 32 kHz and 44.1 kHz will use Bank 3. If other sample rates are
used, then the banks need to be setup differently.
2.5.6 Bank Switching Example 2
Problem: The audio system uses all of the sample rates supported by the TAS5518. How can the automatic
bank switching be set up to handle this situation?
Strategy: Use the TAS5518 bank switching feature to allow for managing and switching three banks
associated with sample rates as follows:
Bank 1: Coefficients for 32 kHz, 38 kHz, 44.1 kHz, and 48 kHz
Bank 2: Coefficients for 88.2kHz and 96 kHz
Bank 3: Coefficients for 176.4 kHz and 192 kHz
One possible algorithm is to generate, load, and automatically manage bank switching for this problem:
Generate bank-related coefficients for sample rates 48 kHz (Bank 1), 96 kHz (Bank 2), and 192 kHz (Bank
3) and include the same in the micro-based TAS5518 I2C firmware.
On TAS5518 powerup or reset, the micro runs the following TAS5518 Initialization code:
Update Bank 1 (Write 0x0004F00C to register 0x40).
Write bank-related I2C registers with appropriate values for Bank 1.
Write Bank 2 (Write 0x0005F00C to register 0x40).
Load bank-related I2C registers with appropriate values for Bank 2.
Write Bank 3 (Write 0x0006F00C to register 0x40).
Load bank-related I2C registers with appropriate values for Bank 3.
Select automatic bank switching (Write 0x0003F00C to register 0x40)
Now when the audio media changes, the TAS5518 automatically detects the incoming sample rate and
automatically switches to the appropriate bank.
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| TAS5518PAGG4 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TAS5601DCAG4 | 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO56 |
| TAS5601DCARG4 | 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO56 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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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