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nAPPLICATION CIRCUIT: Single control signal operation by using C-MOS inverter
(frequency range: 0.1~2.0GHz)
nRECOMMENDED PCB DESIGN
C5
C2
C1
C3
C4
P1
V
CTR2
V
CTR1
PRECAUTIONS
[1] The external capacitors should be connected to the input and output RF terminals
(P
1
, P
2
, P
C
) to block DC current. Please use a 0.01uF capacitor at 50 to 100MHz, a
0.1uF capacitor at 100 to 500MHz, and 56pF at 500MHz to 2.0GHz.
[2] To avoid coupling between terminals, the capacitors have to be placed at the control
terminals (V
CTR1
, V
CTR2
) as close as possible. The capacitor values of 0.01uF at 50 to
100MHz, 100pF at 100 to 500MHz, and 10pF at 500MHz to 2GHz are desired. In
general, the switching time is depend on the capacitor values, so please be careful
choosing capacitor values.
[3] For good isolation characteristics, the ground terminals (2, 3, 5, 6, 9~13 pin) should
be directly connected to the ground patterns and through-holes as close as possible
using relatively wide patterns.
Test circuit 1
0.5~2GHz
Test circuit 2
1~500MHz
C1~C3 56pF 0.1uF
C4, C5
10pF 1000pF
(TOP VIEW)
PCB SIZE=30.0x22.5mm
PCB: FR-4, t=0.5mm
STRIPLINE WIDTH =1mm
CAPACITOR: size 1005
11
13
14
4
2
1
P2
V
CTR2
(2.7V/0V)
Zo=50
Ω
C1
C4
8
7
C5
V
CTR1
(0V/2.7V)
P1
Zo=50
Ω
C2
C3
Zo=50
Ω
10
6
12
3
5
9
PC
