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参数资料
| 型号： | TAS5709PHP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封装： | 7 X 7 MM, GREEN, PLASTIC, HTQFP-48 |
| 文件页数： | 42/60页 |
| 文件大小： | 1210K |
| 代理商： | TAS5709PHP |
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OSCILLATOR TRIM REGISTER (0x1B)
BKND_ERR REGISTER (0x1C)
www.ti.com ..................................................................................................................................... SLOS599A – NOVEMBER 2008 – REVISED SEPTEMBER 2009
The TAS5709 PWM processor contains an internal oscillator to support autodetect of I2S clock rates. This
reduces system cost because an external reference is not required. Currently, TI recommends a reference
resistor value of 18.2 k
(1%). This should be connected between OSC_RES and DVSSO.
Writing 0X00 to reg 0X1B enables the trim that was programmed at the factory.
Note that trim must always be run following reset of the device.
Table 16. Oscillator Trim Register (0x1B)
D7
D6
D5
D4
D3
D2
D1
D0
FUNCTION
1
–
Reserved (1)
–
0
–
Oscillator trim not done (read-only) (1)
–
1
–
Oscillator trim done (read only)
–
0
–
Reserved (1)
–
0
–
Select factory trim (Write a 0 to select factory trim; default is 1.)
–
1
–
Factory trim disabled (1)
–
0
Reserved (1)
(1)
Default values are in bold.
When a back-end error signal is received from the internal power stage, the power stage is reset stopping all
PWM activity. Subsequently, the modulator waits approximately for the time listed in Table 17 before attempting
to re-start the power stage.
Table 17. BKND_ERR Register (0x1C)(1)
D7
D6
D5
D4
D3
D2
D1
D0
FUNCTION
0
X
Reserved
–
0
1
0
Set back-end reset period to 299 ms (2)
–
0
1
Set back-end reset period to 449 ms
–
0
1
0
Set back-end reset period to 598 ms
–
0
1
0
1
Set back-end reset period to 748 ms
–
0
1
0
Set back-end reset period to 898 ms
–
0
1
Set back-end reset period to 1047 ms
–
1
0
Set back-end reset period to 1197 ms
–
1
0
1
Set back-end reset period to 1346 ms
–
1
0
1
X
Set back-end reset period to 1496 ms
–
1
X
Set back-end reset period to 1496 ms
(1)
This register can be written only with a "non-Reserved" value. Also this register can be written once after the reset.
(2)
Default values are in bold.
Copyright 2008–2009, Texas Instruments Incorporated
47
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| TAS5709PHPG4 | 功能描述:音频放大器 20W Stereo I2S input Aud Pwr Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TAS5709PHPR | 功能描述:音频放大器 20W Stereo I2S input Aud Pwr Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TAS5709PHPRG4 | 功能描述:音频放大器 20W Stereo I2S input Aud Pwr Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TAS5710 | 制造商:TI 制造商全称:Texas Instruments 功能描述:20-W STEREO DIGITAL AUDIO POWER AMPLIFIER |
| TAS5710EVM | 功能描述:音频 IC 开发工具 TAS5710EVM Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
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