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Test Circuit Board for KGF2236
KGF2236
Test Circuit
L4
33nH
C10
100000pF
RF
out
C11
39pF
V
G1
RF
in
C1
39pF
C9
10pF
V
G2
V
D2
R1
100W
L1
56nH
C2
10pF
C3
10pF
C4
10.5pF
1
2
3
4
5
6
7
8
GND
V
D2
V
D2
V
D2
GND
GND
GND
V
G1
KGF2236
16
GND
15
V
G2
14
V
G2
13
GND
12
GND
11
GND
10
V
D1
9
GND
L3
56nH
C8
7pF
R2
100W
C7
15pF
C6
39pF
V
D1
C5
100000pF
L2
33nH
Remarkable
Power Up
1) Begin by setting all power supplies to zero volts, and input power to –30 dBm.
2) Make sure that the RF input power is turned off.
3) Turn on V
G1
(Pin 8) and V
G2
(Pin 14 and 15) to (–) 3.3 V.
4) Adjust V
D1
(Pin 10) and V
D2
(Pin 2, 3 and 4) to V
DS1
= V
DS2
= 3.5 V, respectively.
5) Adjust V
G1
and V
G2
to I
DSQ1
= 80 mA and I
DSQ2
= 200 mA, respectively.
6) Turn RF on and adjust input power (Pin = 7 dBm) to get Pout = 31.5 dBm.
Power down
To power down the device follow the above procedure in reverse order.
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OKI [ OKI ELECTRONIC COMPONETS ]
