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DS111204

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

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

SBA4089Z

Basic Application Circuit

Evaluation Board Layout

Mounting Instructions:

1. Solder the copper pad on the backside of the device package to the ground plane.

2. Use a large ground pad area under device pins 2 and 4 with many plated through-holes as shown.

3. We recommend 1 or 2 ounce copper. Measurements for this data sheet were made on a 31mil thick FR-4 board with 1

ounce copper on both sides.

Application Circuit Element Values

Reference Designator

500MHz

850MHz

1950MHz

2400MHz

3500MHz

220pF

100pF

68pF

56pF

39pF

100pF

68pF

22pF

22pF

15pF

68nH

33nH

22nH

18nH

15nH

8V

10V

12V

33



39



68



91



RF in

RF out

1 uF

C

B

C

B

C

D

V

S

R

BIAS

L

C

1

2

3

4

1000

pF

SBA-4089

1 uF

R

BIAS

1000 pF

C

B

C

B

C

D

L

C

V

S

BA4