NJG1508F 데이터 시트보기 (PDF) - Japan Radio Corporation

부품명

상세내역

일치하는 목록

NJG1508F

SPDT SWITCH GaAs MMIC

Japan Radio Corporation  

NJG1508F

nTEST CIRCUIT

Zo=50Ω

P2

4

3

C1

Zo=50Ω

P1

C2

5

2

R1

6

1

NJG1508F

VCTR1 (0V/2.7V)

C4

Zo=50Ω

PC

C3

VCTR2 (2.7V/0V)

C5

nRECOMMENDED PCB DESIGN

(TOP VIEW)

PC

VCTR2

C3

VCTR1

R1

C4

P2

C5

P1

C2

C1

PCB SIZE=19.4x14.0mm

PCB: FR-4, t=0.5mm

CAPACITOR: size 1005

STRIP LINE WIDTH=1mm

C1~C3: 56pF

C4, C5: 10pF

R1: 510KΩ

Precautions

[1]External capacitors should be connected to the input and output RF terminals (P1,

P2, PC) to block the DC current. The above example is a circuit at 900MHz.Please

select the capacitor value suitable for actual frequency from 10pF to 1000pF.

[2]Decoupling capacitors should be connected to the control terminals (VCTR1, VCTR2) as

close as possible. The values of these capacitors should be selected from 5pF to

100pF range. Please consider that these values are very effective to switching time

(Larger capacitor gives longer switching time).

[3]In order to keep good isolation characteristics, the ground terminal (5pin) should be

connected to the ground pattern with wider width as close as possible, and

through-hole in the ground plane should also be placed as close as possible.

- 10 -

Share Link: