LA1784M 查看數據表（PDF） - SANYO -> Panasonic
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LA1784M Datasheet PDF : 50 Pages
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AC Characteristics Test Circuit
LA1784M
50Ω 30Ω
AC2
SG2
15pF
65pF
JIS
DUMMY
VD6
VCC
GND
8V
VCC
VA2
AC3
SG3
0.022µF
50Ω 300Ω
+
IF OUT
10kΩ
IF IN
SW3
B
+
+
SW2 ( i )
MIX A
+
+
+
RFAGC
240kΩ
0.1µF 10kΩ
MUTE DRIVE
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
4.3kΩ
VD5
MRC-IN
VCC2
30Ω
620Ω
0.022µF
1MH
100µH
100µH
FC18
+
49
FM IF
IN 50
51
0.022µF
AM IF IN 52
53
FM IF OUT
54
AM SD ADJAM MIX OUT
55
FM WB AGCIN
FE IF IN
56
ANT
D
OSC
BUFF
OSC
BUFF
DET
IF
AGC
L.C.
IF limiter
amplifier
AMVSM
AM SD
FMVSM
FM SD
IF BUFF
MIX +
RF AGC TWEET
W.B. AGC
Q.DET
MUTE
AMP
HOLE
DET
MUTE
DRIVE
DC-C AFC
DET CIAMP
MRC
SW8
57
ANTD
0.022µF
510Ω
300kΩ
1kΩ
0.022µF
10pF
58
MUTE ATT
59
60
W.B.AGC
AM FM
VREF
RF AGC
KEYED
AGC
SW7
VCC
AC1
SG1
50Ω 25Ω
1000µF
VCC
3pF
FEVCC 61
MIX
AM/FM
62
63
5pF
64
5pF
ANT
D
BUFF
BUFF
AM
1ST
OSC
1
2
3
4
5
OSC
VD1
100Ω
20pF
HPF
LPF
FF FM/AM
REG SW
–+
AGC TRIG GATE
SNC
HCC
VCO
STOP
FF
19<90
k
FF
19<0
PHASE
COMP
VCO
PILOT
DET
TRIG
MAIN
HC
FF
38k<0
FF
P-CAN
SUB MA
DEC TRIX
6
7
8
9 10 11 12 13 14 15 16
AM
MPX
OSC
+
6800pF 0.01µF
OUT
FM S-METER
1µF
32
DET OUT
31
+
30
NC-IN
AM LEVEL ADJ
8200pF AM HC
SW4 (T)
BA
NC-IN
29 HCC
HCC
AC5
PG1
(AC1)
SNC
28
1µF
27
26
GND
25
AM/FM
S-METER 0.47µF
24
SNC
VCC3
VD4
VD2
SEEK→AM/FM SD
STOP→AM ST BUFFER
FM ST IND.
50kΩ
23
22 5.6kΩ
+
+
21 1µF
0.22µF
CSB912JF108
20
0.047µF 20kΩ
19
SEP.ADJ VR1 3pF
SW9
18
100kΩ
17
VR2
0.01µF
PI.CAN ADJ
VA3
FM/AM IFBUFF.
50kΩ
5V
VCC1
SW5 SW6
8V
0.022µF
VD3
VA8
VCC2
100Ω
0.022µF
0.022µF
+
GND
VT
20kΩ
SW1
8V
VA1
SW10
3pF
10.26MHz
X TAL
VCC
10µF
VA6
8V
0.022µF
VCC
10µF
VA7
VA9
A11754
No. 6039-20/50
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