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| 型號： | TAS5705PAPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| 封裝： | 10 X 10 MM, GREEN, PLASTIC, HTQFP-64 |
| 文件頁數(shù)： | 53/72頁 |
| 文件大?。?/td> | 1168K |
| 代理商： | TAS5705PAPG4 |
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www.ti.com ................................................................................................................................................ SLOS549A – JUNE 2008 – REVISED SEPTEMBER 2009
OSCILLATOR TRIM REGISTER (0x1B)
The TAS5705 PWM processor contains an internal oscillator for PLL reference. This reduces system cost
because an external reference is not required. Currently, TI recommends a trim resistor value of 18.2 k
(1%).
This should be connected between OSC_RES and DVSS.
The factory-trim procedure simply enables the factory trim that was previously done at the factory.
Note that trim always must be run following reset of the device.
Oscillator Trim Enable Procedure Example
Write data 0x00 to register 0x1B (enable factory trim).
Table 22. 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.
BKND_ERR REGISTER (0x1C)
When a back-end error signal is received (BKND_ERR = LOW), all the output stages are reset by setting all
PWM and VALID signals LOW. Subsequently, the modulator waits approximately for the time listed in Table 23
before initiation of a reset.
Table 23. BKND_ERR Register (0x1C)
D7
D6
D5
D4
D3
D2
D1
D0
FUNCTION
–
0
Set back-end reset period to 0 ms (Reserved)
–
0
1
Set back-end reset period to 150 ms (Reserved)
–
0
1
0
Set back-end reset period to 299 ms (1)
–
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
0
Set back-end reset period to 1496 ms
–
1
0
1
Set back-end reset period to 1496 ms
–
1
–
Set back-end reset period to 1496 ms
(1)
Default values are in bold.
Copyright 2008–2009, Texas Instruments Incorporated
57
Product Folder Link(s): TAS5705
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| TAS5705PAPR | 功能描述:音頻放大器 20W stereo Dig Audio Pwr Amp 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 |
| TAS5705PAPRG4 | 功能描述:音頻放大器 20W stereo Dig Aud Pwr Amp 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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| TAS5706A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-W Stereo Digital Audio Power Amplifier with EQ and DRC |
| TAS5706A_0812 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-W Stereo Digital Audio Power Amplifier with EQ and DRC |
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