FM Front End
CD7335GS
1.
CD7335GS FM
10.7MHz VCC=2.0 ~ 6.0V Vstop =1.5V
FM
2.
2. 1
AFC SIP9
3 426
7
1
2. 2
1 2 3 4 5
5
INRF ...
Description
CD7335GS
1.
CD7335GS FM
10.7MHz VCC=2.0 ~ 6.0V Vstop =1.5V
FM
2.
2. 1
AFC SIP9
3 426
7
1
2. 2
1 2 3 4 5
5
INRF VCC OUTRF INMIX GND
89
6 OUTMIX 7 OSC 8 AFC1 9 AFC2
1 2
14 0510 5807123-5542 14
0510 5803016
3.
3. 1
25 3. 2
Tamb= 25
VCC PD Tamb Tstg
1
8 500 -25 ~ 75 -55 ~ 150
4 mW
V mW
Tamb= 25 VCC= 4V f=98MHz fm=1kHz f=22.5kHz
CD7335GS
AFC
AFC AFC
ICCQ VOSC AVC
VIN=0 fOSC=60MHz
2.5 4.0 mA 40 75 200 mV
20 dB
CAFC
3.8 pF
QQ
100
K VAFC=1 ~ 3V
0.23
RIP PIN4
20
CIP PIN4
3.2 pF
1 ROP1
PIN3
24 k
1 COP1
PIN3
3.0 pF
2 ROP2 PIN6 f = 10.7MHz 44 k
2 COP2 PIN6 f = 10.7MHz
3.7
pF
VSTOP
fOSC=60MHZ
1.5 V
24
CD7335GS
4.
1
BPF
Rg=75
G
0.01 F
23
RF
CD7335GS
45 6 7 8
33pF
S1 12
75pF 390
10pF
9
100k 1000pF
VAFC 0.01 F
Vcc
Icco mA Res db
27pF
5.
Icco - Vcc 8
1 6
4
2
0 0 2 4 6 8 10 Vcc V
Res - f 0
Vcc=4V f=83MHz
fM=1kHz Vi=60dB
f= 22.5kHz 1
-600 -400 -200
-10 AFC ON
-20 OFF
-30
0 200 400 600 f Hz
f kHz
CAFC PF
Q C AFC - V AFC 6 130
5Q
110
4
3 2
01...
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