Disclaimer: Subject to change without notice

© 2015 RF Micro Devices, Inc.

www.rfmd.com / www.qorvo.com

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RFFM4503

RFMD + TriQuint = Qorvo

Timing Diagrams

Level is set Per the data sheet

VCC

PA_EN

C_RX

0.2uSec

Time

TX RF Signal

Transmit Timing Diagram

Power ON / OFF Sequence

RX is Low during TX

0.2uSec

0.2uSec

0.2uSec

Apply Vcc to pins 4,

10, and 11

Both controls must be

OFF during transmit.

The order is not critical.

Apply a max of 0.4v to

pins 15 and 16

For Transmit: apply

3.1v to pin-6

Note1: RF Signal for each specific mode is applied after the DC bias is applied

Note2: Total ON/OFF time includes from 10% of control switching to 90% of RF power

Note3: Listed values on diagram are typical. The maximum is 0.5us for each mode

LNA_EN

RX is Low during TX

RF signal ON time is

0.5uS max. Set RF

input to required level.

Range is set Per the data sheet