RF6535 datasheet(6/8 Pages) RFMD

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RF6535

DS121107

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RF6535 Biasing Instructions

Tx Mode

• With the RF source disabled, apply 3.3V to VCC with other controls set to 0V

• Apply 3.0V to SDN and 1.8V to CTL

• Apply 0V to ANT_SEL to select the ANT1 port, or 3.0V to select the ANT2 port

•VCC current should rise to 70mA to 80mA quiescent current

• Enable the RF source; VCC current should rise to a maximum of 200mA depending on output power

RX Mode

• With the RF source disabled, apply 3.3V to VCC with other controls set to 0V

• Apply 3.0V to SDN, keeping CTL at 0V

• Apply 0V to ANT_SEL to select the ANT1 port, or 3.0V to select the ANT2 port

•VCC current should rise to 7mA to 8mA

• Enable the RF source; VCC current may increase a few mA depending on output power

Logic Table

Mode

SDN

CTL

ANT_SEL

TX-ANT1

3.0V

1.8V

TX_ANT2

3.0V

1.8V

3.0V

RX-ANT1

3.0V

RX-ANT1

3.0V

All OFF

RF6535 Datasheet(PDF) 6 Page - RF Micro Devices