RF1604 datasheet(5/9 Pages) RFMD

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RF1604

DS120125

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support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

General Information

Truth Table for Switch States

Control Logic

The switch is operable in four states (see Truth Table). When VDD is high, the switch is active. The start-up time is defined as

the delay time that control signal(s) cross 0.8V threshold until KF output level is 90% of final RF voltage peak.

Power Sequence

ON Sequence: First turn ON VDD, then apply control signals.

OFF Sequence: First turn OFF the control signals, then turn OFF VDD.

Note:

Not following the power ON/OFF sequence could cause damage to the switch and may affect the long-term reliability of the

device.

Electrical Test Methods

The electrical parameters for the switch were measured on RFMD evaluation board. The test PWB includes means for decou-

pling RF signals from control signal port (shunt capacitor at control signal ports).

All measurements are done with calibration plane at switch pins. The effect of test board losses and phase delay has been

removed from the results.

State

RF Path

1VLOW

VLOW

ANT-RF1

2VLOW

VHIGH

ANT-RF2

3VHIGH

VLOW

ANT-RF3

4VHIGH

VHIGH

ANT-RF4

RF1604 Datasheet(PDF) 5 Page - RF Micro Devices