AN3662FBP
ICs for VCR
34
I Application Circuit Example
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
49
DEM
block
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
CCA
out
R
Noise
det./
Rec.
A
GC
det.
F
orced
normal
(Normal
=
L)
Jointly
used
for
ENV
det.
output
Audio
FF
input
PB/Rec.
V
CC
PB/Rec.
GND
Rec.
DC1
CCA
out
(L)
N.R.
ref.
(L)
N.R.
det.2
(L)
Pilot
det.
SAP
noise
det.
MTS
V
CC
(5
V)
SAP
det.
Line
out
(R-ch.)
(
6/
7.5
dBS)
L
+
R
ref.
GND2
LED
port
(Multi-v
alue
output)
V
CC2
(12
V)
RFC
A
GC
out
Line
out
(L-ch.)
(
6/
7.5
dBS)
RFC
A
GC
det.
Normal
out
Normal
in
Spectral
det.1
Spectral
timing
BS in (R)
Ext.3 in (R)
BS in (L)
Ext.3 in (L)
Spectral det. 2
VREF
In ref. (R)
Wide band
timing
Ext.1 in (R)
Ext.2 in (R)
GND1 L
In ref. (L)
Wide band det.
Ext.1 in (L)
Ext.2 in (L)
N.R. det.1 (L)
DEM ref.
Stereo PLL
dbx-ref.
I2C clock
I2C data
Logic GND
PE
(Serial setting at 33 k
:
Normal
→25 mA[p-p]/ch,
SVHS
→20 mA[p-p]/ch,
Over rec.
→30 mA[p-p]/ch)
Rec. AGC adj.
Mute CTL
N.R. det.1 (R)
N.R. det.2 (R)
N.R. ref. (R)
Note) Use PE pin in
OPEN mode
Pilot
det.
Logic
St
PLL
Input
VCA
Stereo
filter
75
s
de-emph.
VCO
f O
adj.
logic
LPF
(L
R)/SAP
switch
L
R
demod
SAP
demod
Mute
CTL
ZZ-PR
OM
HA1
HA2
Amp.
RFC
"H"
"L"
SW11
SW15
SW12
PB
Rec.
SW13
+
AG
C
Rec.
LPF
L-ch.
VCO
Det.
Mix.
R-ch.
VCO
Rec.
LPF
SW10
Noise
det.
PB
LPF
FM
LIM
R-ch.
BPF
Lenear
SW
HPF
PC
PB
LPF
Hold
timing
L-ch.
BPF
Audio
limit
SW
noise
Input
SW(R)
PNR
L-ch.
PNR
R-ch.
Audio
limit
SW
14
SW4
S/H
SW
noise
SW9
SW21
SW31
In
SW
mute
S/H
SW2
SW30
In
SW
mute
From
pin
1
Mute
HiFi
R
L
R
L
R
SW18
SW19
SW17
SW16
BS
HiFi
Mix.
Normal
From
pin
3
Mute
Det.
dbx
noise
reduction
SW22
Mix.
R
L
SAP
Matrix
V
REF1
R
L
R
L
Input
SW(L)
CCA
out
R
FM
in
HA
out
(f
O
/BPF
monitor)
Rec.
mute
(L)
(Mute
of
fHI)
Rec.
DC2
HEAD2
HEAD1
Common
V
CC
0.1
F
10
F
1
F
33
F
4.7
F
4.7
F
10
F (Ta)
Base band in
SIF in
Base band in
SIF in
VCC
fSC
MTS mute CTL
(HI
= Mute on)
VCC1 (5 V)
GND1 R
Zero
bias
input
1
kHz,
26.8
dBS
Zero
bias
input
1
kHz,
26.8
dBS
Zero
bias
input
1
kHz,
26.8
dBS
0.1
F
10
F
0.1
F
10
F
33
F
33 k
4.7
F
3.3
F
100 k
0.1
F
1
F
10
F
0.01
F
0.01
F
0.1
F
0.015
F
0.015
F
0.015
F
0.22
F
0.01
F
10
F
V
CC
0.1
F
V
CC
0.1
F
V
CC
2.2
F
10
F
100
10
F
22
F
10
F
0.1
F
1
kHz,
20
dBS
1
kHz,
20
dBS
22
000
pF
3.3
F(T
a)
100
10
F