4 of 6

DS100916

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

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

SGA4186Z

Application Schematic

Evaluation Board Layout

Pin

Function

Description

1RF IN

RF input pin. This pin requires the use of an external DC blocking capacitor chosen for the frequency of opera-

tion.

2, 4

GND

Connection to ground. For optimum RF performance use via holes as close to ground leads as possible to

reduce lead inductance.

proper operation.

e

c

n

e

r

e

f

e

R

r

o

t

a

n

g

i

s

e

D

)

z

h

M

(

y

c

n

e

u

q

e

r

F

0

0

5

0

5

8

0

5

9

1

0

0

4

2

0

0

5

3

C

B

F

p

0

2

2F

p

0

0

1F

p

8

6F

p

6

5F

p

9

3

C

D

F

p

0

0

1F

p

8

6F

p

2

2F

p

2

2F

p

5

1

L

C

H

n

8

6H

n

3

3H

n

2

2H

n

8

1H

n

5

1

pp

I

r

o

f

s

e

u

l

a

V

r

o

t

s

i

s

e

R

s

a

i

B

d

e

d

n

e

m

m

o

c

e

R

D

A

m

5

4

=

R

S

A

I

B

V

(

=

-

D

I

/

)

D

V

(

e

g

a

t

l

o

V

y

l

p

p

u

S

6V

8V

0

1V

2

1

R

S

A

I

B

2

60

1

10

5

10

0

2

R

:

e

t

o

N

S

A

I

B

.

e

r

u

t

a

r

e

p

m

e

t

r

e

v

o

y

t

il

i

b

a

t

s

s

a

i

b

C

D

s

e

d

i

v

o

r

p

RF in

RF out

1 uF

C

B

C

B

C

D

V

S

R

BIAS

L

C

1

2

3

4

1000

pF

SGA4186Z

1 uF

R

BIAS

1000 pF

C

B

C

B

C

D

L

C

V

S

Mounting Instructions

1. Use a large ground pad area under device pins 2

and 4 with many plated through-holes as shown.

2. We recommend 1 or 2 ounce copper. Measurements

for this data sheet were made on a 31 mil thick FR-4

board with 1 ounce copper on both sides.