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RF1147

DS110429

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

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

Application Schematic

Application Diagram and Guidelines

The decoupling capacitors are optional and, if necessary, may be used for noise reduction. Decoupling capacitors on the con-

trol pins protect the control circuitry from possible RF leakage. DC Blocking capacitors are not needed on the RF paths as there

is no DC on the RF paths, however care should be taken to ensure that DC is not injected into the switch from external circuitry.

An ESD filter is needed to protect the switch from antenna ESD events. The filter is formed by LESD inductor and CESD capaci-

tor. The switch has a supply input to feed the built-in logic decoding.

*LESD value will depend on the level of ESD protection and the loss acceptable in a given application.

6

8

5

7

17

1

16

2

12

11

10

9

3

15

14

13

4

RF4

RF3

ANT

RF2

RF1

C1

DNI

L1

DNI

C3

100 pF

C2

100 pF

C4

10 nF

P1

1

2

3

4

5

V1

V2

VDD