NJM2278

Ver.2008-08-22

-7 -

! EVALUATION PC BOARD

The evaluation board is useful for your design and to have more understanding of the usage and performance of

this device. This evaluation board is designed to have the maximum value of PG at 400MHz,and its circuit is the

same as Test Circuit 4 (V+=2.7V).

Note that this board is not prepared to show the recommendation of pattern and parts layout.

#

List of Component

Items

Designation

Value

Supplier

Note

IC

IC1

NJM2278

New Japan Radio

Inductor

L1

24nH

Murata

LQW18A series

L2

22nH

Murata

LQW18A series

Capacitor

C1

1000pF

Taiyo Yuden

GRM21 series

C2

6.8pF

Taiyo Yuden

UCN033 series

C3

11pF

Taiyo Yuden

UCN033 series

C4

4.3pF

Taiyo Yuden

UCN033 series

C5

1000pF

Taiyo Yuden

GRM21 series

C6

1000pF

Taiyo Yuden

GRM21 series

C7

1000pF

Taiyo Yuden

GRM21 series

Potentiometer

Rref

100Ω

Murata

PVG3A101C01

L2

22n

4

IREF

V+

EMI

GND

RF OUT

5

6

1

3

2

RF IN

Regulator

Bias

C3

11p

C4

4.3p

C1

1000p

L1

24n

C2

6.8p

C6

1000p

RF IN

RF OUT

Rref

0 to 100

C5

1000p

V+

C7

1000p

GND

IC1

NJM2278