TK-890H
(
B
)
SCHEMATIC DIAGRAM
14
7
6
5
4
3
2
1
A
B
C
D
E
-t
C21
100p
C34
30p
L3
C26
470p
W5
1
2
3
4
5
C8
0.1u
R908
100k
R902
1k
C102
22p
L4
C78
470p
CN5
C74
100p
C17
47u25
R23
33k
C38
8p
R14
33
C75
1000p
C35
30p
R2
100k
D902
1SS355
C11
470p
C44
56p
C76
0.1u
C23
1000p
VR1
100k
R903
1k
C3
470p
R906
1.8k
C24
0.1u
C32
30p
C22
100p
TH1
PTFM04BD471Q2N
C39
8p
C908
1000p
C906
0.47u25
C15
100p
R3
470
C72
9p
R15
330
R22
82k
C14
470p
C29
39p
R904
1k
R26
33k
R1
47k
R28
0
C19
20p
C20
100p
R5
3.9k
R16
33
R25
82k
C5
470p
CN1
C43
56p
CN6
R17
330
R4
1.2k
C40
8p
C28
39p
1
RF_IN
2
3
4
RF_oUT
C30
39p
C37
8p
C31
39p
C33
30p
1
oUTA
2
-INA
3
+INA
4
-V
5
6
7
8
DO
5
1
TX-RX UNIT
X57-5620-13(A/3)
DO
CN203
TX-RX UNIT
X57-5620-13(A/3)
CN201
FINAL UNIT (X45-3570-10) :TK-890H(B) K
CORRECTION
FOR
TEMPERATURE
8R
B
8T
GA
TE BIAS
DRAIN BIAS
IC1
RA45H4452M-31
TX DRIVE AMP
DB
8R
8T
PC
E
PROTECT OF VOLTAGE
D904
1SS355
CURRENT
STEERING
2SC2712(Y)
Q2
DC SW
2SC2712(Y)
Q1
DC SW
+INB
-INB
oUTB
+V
IC901
OP291GS
DC AMP
2SC4116(Y)
Q901
RIPPLE FILTER
R27
6.8k
1/2(W)
FINAL AMP
Q6,7
RD60HUF1-01
Q7
RD60HUF1-01
Q6
R24
6.8k
1/2(W)
L2
L33-1470-05
C903
0.01u
R905
10k
C907
0.1u
C901
4.7u10
R901
8.2k
D901
UDZS4.3B
C905
1000p
C904
470p
C902
0.1u
C911
1000p
R907
100k
L1
L33-1470-05
0V
(2.1V)
0V
(2.25V)
0V
(2.25V)
0V
(3.52V)
0V
(7.96V)
+20dBm
X45-3570-10 1/2