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TAS5731MPHPR bảng dữ liệu(PDF) 40 Page - Texas Instruments

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tên linh kiện TAS5731MPHPR
Giải thích chi tiết về linh kiện  2 * 30-W DIGITAL AUDIO POWER AMPLIFIER WITH DSP AND 2.1 MODE
PDF  68 Pages
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nhà sản xuất  TI1 [Texas Instruments]
Trang chủ  http://www.ti.com
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TAS5731MPHPR bảng dữ liệu(HTML) 40 Page - Texas Instruments

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TAS5731M
SLOS838B – JULY 2013 – REVISED NOVEMBER 2013
www.ti.com
Shutdown Sequence
Enter:
1.
Write 0x40 to register 0x05.
2.
Wait at least 1 ms + 1.3 × tstop (where tstop is specified by register 0x1A).
3.
If desired, reconfigure by returning to step 4 of initialization sequence.
Exit:
1.
Write 0x00 to register 0x05 (exit shutdown command may not be serviced for as much as 240 ms
after trim following AVDD/DVDD power-up ramp).
2.
Wait at least 1 ms + 1.3 × tstart (where tstart is specified by register 0x1A).
3.
Proceed with normal operation.
Power-Down Sequence
Use the following sequence to power down the device and its supplies:
1.
If time permits, enter shutdown (sequence defined above); else, in case of sudden power loss,
assert PDN = 0 and wait at least 2 ms.
2.
Assert RESET = 0.
3.
Drive digital inputs low and ramp down PVDD supply as follows:
•
Drive all digital inputs low after RESET has been low for at least 2 µs.
•
Ramp down PVDD while ensuring that it remains above 8 V until RESET has been low for at
least 2 µs.
4.
Ramp down AVDD/DVDD while ensuring that it remains above 3 V until PVDD is below 6 V and
that it is never more than 2.5 V below the digital inputs.
40
Copyright © 2013, Texas Instruments Incorporated
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