HFA3683A 查看數據表（PDF） - Intersil
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HFA3683A Datasheet PDF : 17 Pages
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HFA3683A
Typical Evaluation Board Application (Continued)
C27 R36
3.3pF 0
IF_IN/OUT
T1
C31 3.3pF R9 0
C37 220pF
TX_MIX_OUT
C63
C34
0.01µF
4.7µF
(NO FIT)
C52
U4
4 OUT
IN
C51
4.7µF
MAX8867
SHDN
GND BP
2
0.1µF
3
C49
1
0.1µF
5
C50
C48
0.01µF
4.7µF
VCC_IN
D1
GP5
C58
VCC2
C46
C47
0.1µF
10pF
U3 UPC2745TB
2 35
C55
1
10pF
4
6
C56 10pF
1000pF
U2
ENFVZ5F81
2
VCC
RF 1
3 VCONT
GROUND
4 5A 5B 5C 5D
R33
82
R34
91
R35
82
VCC2
EXT_VCO
R17
560
R19
56
C43
2700pF
R20
C44
3.48K
0.027µF
C45
R21
1.74K
300pF
FILTER VALUES
BW
1KHz
C43
0.068µF
C44
0.68µF
R20
1.5K
R21
649
C45
0.01µF
(10KHz
DEFAULT)
10kHz
2700pF
0.027µF
3.48K
1.74K
330pF
VCC2
C62
4.7µF
C61
0.1µF
U5
4
OUT
3
IN
MAX8867 1
SHDN 5
BP
GND
2
C60
C57
0.01µF
0.1µF
C59
4.7µF
2-11
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