RMPA1852 查看數據表（PDF） - Fairchild Semiconductor

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RMPA1852

Quad-Band GSM/EDGE PA Module

Fairchild Semiconductor 

ADVANCED DATA SHEET

The Power Down sequence is in reverse order to the Power On Sequence.

VBATT

TX EN

VRAMP starts

1µs after TX EN

VRAMP

(3.0V to 4.2V)

2.8V

0.2 to 1.6V

VRAMP settles at 0.2V

1µs before TX EN goes low

RMPA1852 Rev. C

10

www.fairchildsemi.com

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