F1385 Datasheet

© 2022 Renesas Electronics Corporation

38

February 7, 2022

Application Information

F1385 has been optimized for use in high performance RF applications from 3200 MHz to 4400 MHz.

Power Supplies

All supply pins should be bypassed with external capacitors to minimize noise and fast transients. Supply noise can degrade noise figure and

fast transients can trigger ESD clamps and cause them to fail. Supply voltage change or transients should have a slew rate smaller than

1 V / 20 µS. In addition, all control pins should remain at 0 V (+/-0.3 V) while the supply voltage ramps or while it returns to zero.

Control Pin Voltage & Resistance Values (pins not connected)

The following table provides open-circuit DC voltage and resistance values referenced to ground for each of the control pins listed.

Table 12. Control Pin Voltage and resistances

Pin

Name

DC voltage (volts)

Resistance (ohms)

1

SW_LATCH

1.75

1.6M

2

RF_SEL

1.75

800K

14

STBY

5.00

50K

26

CSb

1.75

1.6M

27

DATA

1.75

1.6M

28

CLK

1.75

1.6M