Voltage Variable RF Attenuator

1MHz to 3000MHz

© 2018 Renesas Electronics Corporation

19

May 7, 2021

F2255

Datasheet

Control Pin Interface

If control signal integrity is a concern and clean signals cannot be guaranteed due to overshoot, undershoot,

ringing, etc., the following circuit at the input of control pins 14 and 16 is recommended as shown below.

1

4

3

2

12

9

10

11

Control

5

6

7

8

13

14

15

16

VMODE

2pf

5Kohm

2pf

5Kohm

VCTRL

RF1

RF2