Panasonic AN2492FH Luminance and chrominance signal processing circuit for 8 mm video (ntsc) Datasheet

ICs for VCR
AN2492FH
Luminance and chrominance signal processing circuit for
8 mm video (NTSC)
Unit: mm
■ Overview
12.00±0.20
10.00±0.20
The AN2492FH is a single chip LSI on which Y/C
main signal processing circuit of NTSC normal 8 mm
VCR is integrated. It is possible to reduce the system
cost drastically thanks to the introduction of an external
filter on to the chip and fc auto adjustment.
48
33
32
(1.25)
10.00±0.20
12.00±0.20
49
64
■ Applications
1
16
0.50
+0.10
0.18−0.05
+0.10
(1.25)
0.15−0.05
1.95±0.20
• 5 V single power supply
• Reduction of the external components and adjusting
parts by adopting automatic adjustment filter
• No need of glass delay lines
• For NTSC (PAL: AN2493 pin-compatible)
0.10±0.10
■ Features
17
Seating plane
(1.00)
0° to 10°
0.50±0.20
QFP064-P-1010
• 8 mm VCR, 8 mm video camera
1
51
2
61
60
59
VXO
fSC out
REC APC det.
4
2 REC APC
3
VREF det.
VREF
1
64
Clip
DOC
Sub
LPF
1/4
1/8
f det.
90 PS
DCL Amp.
D LIM
RF AGC
PBA PC
CK PC
DP PC
Amp.
DEMOD
MA in
LIM
CK
F PC
DL
PBY
VCO
4DIV
Sub BM
REC
AFC
1/46
43
VXO in
VXO out
Clip in
DCL in 62
63
MDC
MDE
D LIM in
RF out
FM in
50
SS out
RF det.
49
SS
48
55
56
57
58
45
46
VF mute CTL
47
VF out
Main
LPF
VNF
P
R
41
ATT
N
1/4
1/8
Line
SW 2
SW 5
ML out
Y GND 42
SS det. 54
Line in
1/8
SLD
PB
CONP
Line
PB
DOC
SW 6
R
MIX
(d)
CORR
Sync.
CONP
Det.
39
53
Clamp det.
40
P
SW 16
SW 18
C
CL det.
R
P
P
SW 17
R
GCA1
SW 8
Sub 2
ACC det.
ACC
P
R
SW 14
Clamp
SW 15
R P
Chroma
DE/EM
BPF
CNR
Det.
V mute
CTL
Mute
Burst
DE/EM BM
R
SW 11
P
ATT
LIM
A
Clamp
Trap
34
REC PB VOL
V mute CTL
37
38
GCA2
CONP C
35
L IMC
36
To CCD
SW 3
Y VCC
33
AGC
det.
Video out
31
32
C
CL in
CK
HPF
GCA4
CACC
LPF
Trap
LPF
HPF1
N.C.
Amp.
29
P
YCL det.
OSD
G2 det.
30
Clamp
YDL in
PS
CTL1
SW 4
NOR
ADD out
OSD
OSD
G1 det.
Clamp
SW 1
CDL in
28
Test 9
SW 0
R
CCL det.
AGC
SW 21
LNC out
R
ME NF
CEC det.
C sub 17 PB C in
LPF
19
CE CTL
18
21 FM out (DOC)
20 GCA3 CTL
DEV CTL
ME out
(COR det. out)
23 f CTL
0
22
24
25 W CTL
26
GCA3
MOD
SW 13
R
W/D
Smear
SW 12
P
P
HSS
LIM
HPF
Clamp
27
SW 19
NL in
52
CONP Y
AGC det.
AN2492FH
ICs for VCR
■ Block Diagram
16
15
7
6
GCA4 CTL
REC C out
14 CLCA det.
13 PB C out
12 C MIX in
11 C GND
10 Data
9 CK
8 CV
CC
44
PG in
PB APC det.
5 f det.
ICs for VCR
AN2492FH
■ Pin Descriptions
Pin No.
Description
Pin No.
Description
1
VXO in
33
GCA1 CTL
2
REC APC det.
34
CONP C
3
VREF det.
35
LIMC
4
fSC out
36
To CCD
5
f det.
37
G2 det.
6
PB APC det.
38
YDL in
7
PG in.
39
YCL det.
8
C VCC
40
CL in
9
CK
41
ML out
10
Data
42
Y GND
11
C GND
43
Video out
12
C MIX in
44
Y VCC
13
PB C out
45
VNF
14
CLCA det.
46
VF mute CTL
15
REC C out
47
VF out (BGP out)
16
GCA4 CTL
48
V mute CTL
17
PB C in
49
Clamp det.
18
CEC det.
50
Line in
19
Chroma emph. CTL
51
AGC det.
20
GCA3 CTL (APT CTL)
52
CONP Y
21
FM out (DOC)
53
REC PB VOL
22
DEV CTL
54
SS det.
23
f0 CTL
55
SS out
24
ME out (COR det. out)
56
RF det.
25
W CTL
57
FM in
26
MENF
58
RF out
27
NL in
59
DLIM in
28
LNC out
60
MD E
29
CCL det.
61
MD C
30
CDL in
62
DCL in
31
G1 det.
63
Clip in
32
ADD out
64
VXO out
3
AN2492FH
ICs for VCR
■ Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
VCC
5.5
V
ICC
100
mA
PD
359
mW
Topr
−10 to +70
°C
Tstg
−55 to +125
°C
Supply voltage
Supply current
Power dissipation
*2
Operating ambient temperature
Storage temperature
*1, *3
*1
Note) *1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
*2: The power dissipation shown is for the IC package at Ta = 70°C.
PD = 696 (mW) (Ta = 70°C) in mounting on the glass epoxy printed circuit board of 50 × 50 × 0.8 (mm).
*3: PD = 471 (mW) at supply voltage VCC = 4.8 V.
■ Recommended Operating Range
Parameter
Supply voltage
Symbol
Range
VCC
Unit
4.7 to 5.2
V
■ Electrical Characteristics at VCC = 4.8 V, Ta = 25°C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Consumption current 1
ICC1
Consumption current for recording
52
72
92
mA
Consumption current 2
ICC2
Consumption current for playback
58
78
98
mA
Consumption current 3
ICC3
Power save mode
42
62
82
mA
Consumption current 4
ICC4
Camera power save mode
−8
−4.2
−1
mA
Internal reference voltage source
VREF
Pin 3 voltage

2.5

V
REC overall
VME
Adjust pin 53 to set pin 47 output
at 1 V[p-p]
−14
−12
−10
dB
∆VAGC
Pin 47 output gain ratio with input
0.5 V[p-p] and 2.0 V[p-p]
−1.5
0
1.5
dB
Y-AGC control characteristics
4
Y-AGC through mode
V26S
Pin 24 output at pin 50 input
200
250
300 mV[p-p]
View finder amp. frequency
characteristics
fBA
Output ratio of 5 MHz/100 kHz
at input 100 kHz, 5 MHz
−1.5
0
1.5
dB
Video-OSD white mute level
VOW
DC voltage based on a pedestal level
56
68
80
IRE
Video-OSD black mute level
VOB
DC voltage based on a pedestal level
−7
0
12
IRE
Video-OSD white mute CTL
voltage
V48W
Pin 48 input at inserting a record
character
3.6

4.8
V
Video-OSD black mute CTL
voltage
V48B
Pin 48 input at inserting a record
character
2.0

2.6
V
Video-OSD through CTL voltage
V48S
Pin 48 input at inserting a record
character
0

1.0
V
ICs for VCR
AN2492FH
■ Electrical Characteristics at VCC = 4.8 V, Ta = 25°C (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Video-OSD quasi V level
VOV
DC voltage difference based on sync. −100
tip in PB mode
−50
0
mV
Video-OSD quasi V mute CTL
voltage
V48V
PB mode, pin 48 input
2.0

4.8
V
Video-OSD through CTL
voltage
V48G
PB mode, pin 48 input
0

1.0
V
Y-main-LPF frequency
characteristics 1
DfML1
Input: 100 kHz, 2.5 MHz
Output: 2.5 MHz/100 kHz
−5
−2
2
dB
Y-main-LPF frequency
characteristics 2
DfML2
Input: 100 kHz, 3.58 MHz
Output: 3.58 MHz/100 kHz


−25
dB
VVO
VF out 1 V[p-p] adjustment
1.75
2.0
2.25
V[p-p]
Input: 100 kHz, 5 MHz
Output: 5 MHz/100 kHz
−1.5
0
1.5
dB
Video amp. output amplitude
Video amp. frequency
characteristics
fVI
View finder OSD white mute level VBOW
DC voltage based on a pedestal level
56
68
80
IRE
View finder OSD black mute level VBOB
DC voltage based on a pedestal level
−7
0
12
IRE
View finder OSD white mute
CTL voltage
V46W
Pin 48 = 0 V at inserting
the display characters
3.6

4.8
V
View finder OSD black mute
CTL voltage
V46B
Pin 48 = 0 V at inserting
the display characters
2.0

2.6
V
View finder OSD through CTL
voltage
V46S
Pin 48 = 0 V at inserting
the display characters
0

1.0
V
View finder OSD quasi V level
VBOV
DC voltage based on sync. tip in
PB mode
−60
−20
20
mV
View finder OSD quasi V mute
CLT voltage
VB48V
PB mode, pin 48 input
2.0

4.8
V
View finder OSD through CTL
voltage
VB48S
PB mode, pin 48 input
0

1.0
V
PB OSD white mute level
VPOW
DC voltage based on a pedestal level
56
68
80
IRE
PB OSD black mute level
VPOB
DC voltage based on a pedestal level
−7
0
12
IRE
PB OSD white mute CTL
voltage
V46W
Pin 48 = 0 V at inserting
the display characters
3.6

4.8
V
PB OSD black mute CTL
voltage
V46B
Pin 48 = 0 V at inserting
the display characters
2.0

2.6
V
PB OSD through CTL voltage
V46S
Pin 48 = 0 V at inserting
the display characters
0

1.0
V
PB OSD off
VVOO
Pin 48 = 0 V at inserting
the display characters
1.75
2.0
2.25
V[p-p]
Sync. separation min. input
sensitivity
VSS
Input sync. level


65
mV[p-p]
Sync. separation pulse delay
amount
tSS
Measurement of sync. delay at
pin 40 and pin 55
560
760
960
ns
5
AN2492FH
ICs for VCR
■ Electrical Characteristics at VCC = 4.8 V, Ta = 25°C (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Sync. separation output amplitude 1
VSSH
Pin 55 output amplitude
4.0


V
Sync. separation output amplitude 2
VSSL
Pin 55 output amplitude


0.4
V
Non linear emphasis 1
fRNL1
Input: 0 dB, output: 1 MHz/10 kHz
1.0
3.0
5.0
dB
Non linear emphasis 2
fRNL2
Input: −10 dB, output: 1 MHz/10 kHz
3.7
6.2
8.7
dB
Non linear emphasis 3
fRNL3
Input: −20 dB, output: 1 MHz/10 kHz
6.3
9.3
12.3
dB
Non linear de-emphasis 1
fPNL1
Input: 0 dB, output: 1 MHz/10 kHz
−5.0
−3.0
−1.0
dB
Non linear de-emphasis 2
fPNL2
Input: −10 dB, output: 1 MHz/10 kHz −10
−7.5
−5.0
dB
Non linear de-emphasis 3
fPNL3
Input: −20 dB, output: 1 MHz/10 kHz −11.5
−8.5
−5.5
dB
Dark clip level
VCD
Fixed
90
100
110
%
White clip level
VCW
Adjust at pin 25

220

%
FM carrier interleave
VCI
Apply voltage to pin 7

1.64

mV[p-p]
Adjust at pin 23

4.2

MHz
FM modulator oscillation frequency
FM modulator deviation CTL
fDEV
Apply voltage to pin 27, adjust at pin 22

2.4

MHz/V
FM modulator secondary distortion
2fFM
Pin 21 output


−30
dB
Y-FM-GCA output amplitude 1
VFMS
Pin 20 = 0 V


100 mV[p-p]
Y-FM-GCA output amplitude 2
VFML
Pin 20 = 4.8 V
370


PB-Y-RFAGC output amplitude
V58
Input 50 mV[p-p], 200 mV[p-p], f = 5 MHz
345
420
495 mV[p-p]
PB-Y-RFAGC output secondary distortion
2f58
Input 100 mV[p-p], f = 5 MHz


−30
dB
Pin 47 output, adjust pin 53

1.0

V[p-p]
Input 3 MHz, 5 MHz, 7 MHz
Pin 63 = 4.8 V, adjust pin 53
90
97
110
%
Input pin 57, f = 5 MHz
−17
−12
−7
dB
Dropout detection off hysteresis ∆VDOC
Input pin 57, f = 5 MHz
1
4
10
dB
Dropout detection ENV off
Input pin 57, f = 5 MHz
5
8
11
H
PB-over-all 1 (NOR)
FM demodulation linearity 1
Dropout detection on level
6
f0
VNOR
∆VNOR
VDOC
VDOCH
mV[p-p]
Dropout detection output high-level VP21H
Input pin 57, pin 21 output
2.8


V
Dropout detection output low-level
VP21L
Input pin 57, pin 21 output


0.4
V
Noise canceller frequency
characteristics 1
fNC11
Input 0 dB, NC1 mode output
1 MHz/50 kHz
−3
− 0.3
0.5
dB
Noise canceller frequency
characteristics 2
fNC12
Input −10 dB, NC1 mode output
1 MHz/50 kHz
−3.5
− 0.8
0.5
dB
Noise canceller frequency
characteristics 3
fNC13
Input −20 dB, NC1 mode output
1 MHz/50 kHz
−6
−2.3
0
dB
Noise canceller frequency
characteristics 4
fNC14
Input −30 dB, NC1 mode output
1 MHz/50 kHz
−10
−6.5
−3.0
dB
NC off mode
fNCOFF
Input −30 dB, NC1 mode output
1 MHz/50 kHz, NC off
−10
−6.5
−3.0
dB
45
70
95
mV
−2.2
− 0.2
1.8
dB
Clip comp. limiter level
VCL
Input pin 63, pin 41 output
Line noise canceller frequency
characteristics 1
fLNC1
Input 0 dB
ICs for VCR
AN2492FH
■ Electrical Characteristics at VCC = 4.8 V, Ta = 25°C (continued)
Parameter
Symbol
Line noise canceller frequency
characteristics 2
fLNC2
Line noise canceller (off)
Conditions
Min
Typ
Max
Unit
Input: −30 dB
−15.0
−8.5
−3.0
dB
fLNC3
Input: −30 dB
−1.5
0
1.5
dB
C-BPF frequency characteristics 1
fBP1
Input: 100 mV[p-p],
output: 3.28 MHz/3.58 MHz
−2.5
− 0.5
−1.5
dB
C-BPF frequency characteristics 2
fBP2
Input: 100 mV[p-p],
output: 3.88 MHz/3.58 MHz
−2.5
− 0.5
−1.5
dB
C-BPF frequency characteristics 3
fBP3
Input: 100 mV[p-p],
output: 2.09 MHz/3.58 MHz


−20
dB
C-BPF frequency characteristics 4
fBP4
Input: 100 mV[p-p],
output: 5.07 MHz/3.58 MHz


−20
dB
REC APC pull-in range 1
+∆fSC
Input: fSC +300 Hz
Pin 4 output (specified Xtal)
275


Hz
REC APC pull-in range 2
−∆fSC
Input: fSC −300 Hz
Pin 4 output (specified Xtal)


−275
Hz
Xtal output amplitude
VFSC
Pin 4 output, at lock (specified Xtal)
320
520
720 mV[p-p]
Xtal oscillation frequency
fSC
Pin 4 frequency deviation at PB
−50

50
ACC output amplitude
VAC
Pin 34 input, pin 15 output (test 3)
350
450
600 mV[p-p]
ACC control characteristics
∆VAC
Level ratio of −14 dB to 6 dB input
−2.0
0
2.0
dB
ACC maximum gain
VACM
Input/output level ratio
14
20

dB
C ACC output characteristics
VCAC
Output burst ratio at input chroma
signal 0 dB and −14 dB
1.0
3
5.0
dB
Burst emphasis amount
VBU
Pin 34 input, pin 15 output
4.0
6.0
8.0
dB
Burst de-emphasis amount
VBD
Pin 17 input, pin 13 output
−8.5
−6.0
−3.5
dB
Chroma de-emphasis characteristics 1
VCE1
Input: 0 dB, output: fsc +500/fsc
−3.3

1.3
dB
Chroma de-emphasis characteristics 2
VCE2
Input: 0 dB, output: fsc −500/fsc
−3.3

1.3
dB
Chroma de-emphasis characteristics 3
VCE3
Input: −10 dB, output: fsc −500/fsc
−5.8

−1.0
dB
Chroma de-emphasis characteristics 4
VCE4
Input: −10 dB, output: fsc +500/fsc
−5.8

−1.0
dB
REC chroma out level 1
VRCO1
Pin 16 = 0 V, pin15 output


100 mV[p-p]
REC chroma out level 2
VRCO2
Pin 16 = 4.8 V, pin 15 output
230


mV[p-p]
Color killer on level
CKON
Pin 34 input signal, 100 mV[p-p] →
2 mV[p-p], pin15 output DC


0.4
V
Color killer off level
CKOFF
Pin 34 input signal, 0 mV[p-p] →
40 mV[p-p], pin15 output DC
1.5
1.9
2.3
V
PB APC pull-in range 1
∆fXO1
Pin 40, pin 17 input, pin 13 output
−100

100
Hz
PB APC pull-in range 2
∆fXO2
Pin 40, pin 17 input, pin 13 output
−100

100
Hz
CNR characteristics 1
CNR3
Pin 40 white 50%, pin 52: B+C signal input
−13
−9
−5.5
dB
CNR characteristics 2
CNR4
Pin 40 white 50%, pin 52: B+C signal input
−13
−9
−5.5
dB
PB burst level
VPBC
Pin 13 output burst level
110
200
280 mV[p-p]
Clip comp. gain
VCG
Input pin 63, pin 41 output
−8.5
−6
−3.5
Hz
dB
7
AN2492FH
ICs for VCR
■ Terminal Equivalent Circuits
Pin No.
Symbol
1
VXO in
Equivalent circuit
Description
500 mV[p-p]
f = 3.5795 MHz
1
Voltage (V)
DC 2.76
3 kΩ
2.38 kΩ
1.62 kΩ
2
REC APC
det.
Det. pin
DC 2 ± 0.75
Bias pin
DC 2.48
AC 540 mV[p-p]
f = 3.5795 MHz
DC 2.7
5 kΩ
2
3
VREF det.
3 kΩ
3
4
fSC out
4
8
ICs for VCR
AN2492FH
■ Terminal Equivalent Circuits (continued)
Pin No.
5
Symbol
Equivalent circuit
Description
f det.
Voltage (V)
Det. pin

Det. pin
DC
1.974 ± 0.75
3 kΩ
5
6
PB APC
det.
3 kΩ
3 kΩ
40 kΩ
6
7
PG in
* FM out comes to high frequency
with high carrier interleave
0 ↔ 4.8
(reference:
DC 2.5 V)
4.8 V
30 kΩ
7
0V
8
C VCC
9
CK



0 ↔ 4.8
(reference:
DC 2.5 V)
4.8 V
10 kΩ
9
0V
9
AN2492FH
ICs for VCR
■ Terminal Equivalent Circuits (continued)
Pin No.
10
Symbol
Equivalent circuit
Description
Voltage (V)
0 ↔ 4.8
(reference:
DC 2.5 V)
Data
4.8 V
10 kΩ
0V
10
11
C GND
12
C MIX in


B: 200 mV[p-p] (NTSC)

DC 2.475
12
7.8 kΩ
20 kΩ 3 kΩ
f = 3.5795 MHz
(Input at a low impedance.)
13
PB C out
DC 2.145
13
B: 200 mV[p-p]
f = 3.5795 MHz
14
CLCA det.
Det. pin
14
200 Ω
3 kΩ
3 kΩ
3 kΩ
10
DC
3.62 ± 0.75
ICs for VCR
AN2492FH
■ Terminal Equivalent Circuits (continued)
Pin No.
Symbol
15
REC C out
Equivalent circuit
Description
Voltage (V)
REC mode
DC 2
f = 743 kHz
15
16
CTL 4
REC out level adjustment
0 to 4.8
16
30 kΩ
17
PB C in
DC 2.75
B: 100 mV[p-p]
f = 743 kHz
17
30 kΩ 3 kΩ
Being inputted into PB-C-in with
Y+C signal, Y signal is 400 mV[p-p]
18
CE C
Det. pin
DC 2.9
5 kΩ
3 kΩ
18
11
AN2492FH
ICs for VCR
■ Terminal Equivalent Circuits (continued)
Pin No.
Symbol
19
CE CTL
Equivalent circuit
Description
Chroma emphasis, de-emphasis
adjustment pin
10 kΩ
19
10 kΩ
20
Voltage (V)
0 to 4.8
Adjustment off at 1 V or less
CTL 3
REC mode (GCA3 control)
0 to 4.8
(1.5 to 3.0)
20
100 kΩ
25 kΩ 10 kΩ
100 kΩ
21
FM out
REC mode
DC 3.35
3 kΩ
21
100 mV to
400 mV
PB mode:
2.5 V or more at DOC on
0.4 V or less at DOC off
22
DEV CTL
Adjust to 5.4 MHz with DC
at 100% white.
1.3 to 3.7
typ. 2.5
Adjust FM out to 4.2 MHz
at sync. tip.
1.3 to 3.7
typ. 2.5
3 kΩ
22
23
f0 CTL
3 kΩ
23
12
ICs for VCR
AN2492FH
■ Terminal Equivalent Circuits (continued)
Pin No.
24
Symbol
Equivalent circuit
Description
ME out
Voltage (V)
DC 2.195
30 kΩ
30 kΩ
10 kΩ
30 kΩ
30 kΩ
250
mV[p-p]
24
25
W CTL
Adjust a white clip level to 220%.
25
1.5 to 3.7
typ. 2.0
48 kΩ
26
MENF
3 kΩ
26
27
250
mV[p-p]
NL in
DC 2.19
(sync. tip)
(With externally attached
feedback resistor R)
DC 2.93
(sync. tip)
3 kΩ
27
500
mV[p-p]
13
AN2492FH
ICs for VCR
■ Terminal Equivalent Circuits (continued)
Pin No.
Symbol
28
LNC out
Equivalent circuit
Voltage (V)
DC 3.14
(sync. tip)
28
29
Description
CCL det.
500
mV[p-p]
Det. pin
DC
2.66 ± 0.75
3 kΩ 3 kΩ
29
30
CDL in
DC 2.755
30
510 kΩ
50 kΩ 3 kΩ
50 kΩ 3 kΩ
150
mV[p-p]
B: 143 mV[p-p]
f = 3.5795 MHz
31
G1 det.
Det. pin
31
3 kΩ 3 kΩ
14
DC
3.515 ± 0.75
ICs for VCR
AN2492FH
■ Terminal Equivalent Circuits (continued)
Pin No.
Symbol
32
ADD out
Equivalent circuit
Description
Voltage (V)
Adjust pin 33 voltage (CTL1) so as not
to mix a chroma signal.
DC 2.0
Adjust so that a comb shape chroma
level adjustment pin 32 (ADD out)
becomes Y signal only.
DC 2.994
32
33
CTL 1
80 kΩ
3 kΩ
33
120 kΩ
34
CONP C
DC 1.96
34
10 kΩ
10 kΩ
10 kΩ
B: 286 mV[p-p]
f = 3.5795 MHz
35
LIMC
Det. pin
DC 2.7
30 kΩ
3 kΩ
30 kΩ
3 kΩ
35
15
AN2492FH
ICs for VCR
■ Terminal Equivalent Circuits (continued)
Pin No.
Symbol
36
To CCD
Equivalent circuit
Description
Voltage (V)
DC 2.031
(sync. tip)
20 kΩ
20 kΩ
3 kΩ
60 kΩ
150
mV[p-p]
16.7
kΩ
40 kΩ
20
kΩ
B: 143 mV[p-p]
f = 3.5795 MHz
36
37
G2 det.
Det. pin
DC
3.515 ± 0.75
37
3 kΩ3 kΩ
38
YDL in
DC 2.622
38
50 kΩ 3 kΩ
50 kΩ 3 kΩ
150
mV[p-p]
B: 143 mV[p-p]
f = 3.5795 MHz
39
YCL det.
Det. pin
39
3 kΩ 3 kΩ
16
DC
2.66 ± 0.75
ICs for VCR
AN2492FH
■ Terminal Equivalent Circuits (continued)
Pin No.
40
Symbol
Equivalent circuit
Description
CL in
Voltage (V)
DC 3.4
(sync. tip)
40
3 kΩ
143 mV[p-p]
500 mV[p-p] with 100% white input
41
ML out
DC 1.897
30 kΩ
20 kΩ
143 mV[p-p]
41
500 mV[p-p] with 100% white input
42
Y GND
43
Video out


2 V[p-p] with 100% white input
3 kΩ 60 kΩ

DC 1.236
(sync. tip)
0.6V[p-p]
43
20 kΩ
B: 0.57 V[p-p]
f = 3.5795 MHz
45
44
Y VCC
45
VNF



DC 1.237
(sync. tip)
3 kΩ 60 kΩ
43
20 kΩ
45
150
mV[p-p]
B: 143 mV[p-p]
f = 3.5795 MHz
Video amp. off when pin 45 is 0.3 V
or less
17
AN2492FH
ICs for VCR
■ Terminal Equivalent Circuits (continued)
Pin No.
Symbol
46
VF mute
Equivalent circuit
Description
VF amp.-OSD-CTL voltage
Voltage (V)
0 V to 4.8 V
10 kΩ
46
47
VF out
DC 1.968
(sync. tip)
300
mV[p-p]
47
B: 286 mV[p-p]
f = 3.5795 MHz
(1 V[p-p] with 100% white input)
48
V mute
Video amp.-OSD-CTL voltage
0 to 5
48
10 kΩ 10 kΩ
49
Clamp det.
Det. pin
3 kΩ
49
18
3 kΩ
DC 3.506
ICs for VCR
AN2492FH
■ Terminal Equivalent Circuits (continued)
Pin No.
50
Symbol
Equivalent circuit
Description
Line in
Voltage (V)
DC 3.2
3.5 kΩ
41.5 kΩ
50
60 kΩ
286
mV[p-p]
B: 286 mV[p-p]
f = 3.5795 MHz
(AGC through mode is 6 dB down.)
51
AGC det.
Det. pin
375 Ω
DC 1.63
3 kΩ
100 kΩ
51
52
CONP Y
DC 3.2
52
60 kΩ
3.5 kΩ
41.5 kΩ
286
mV[p-p]
(AGC through mode is 6 dB down.)
53
REC PB
VOL
53
200 Ω
3 kΩ
3 kΩ
3 kΩ
REC mode:
Adjust to 2 V[p-p] at video out.
0.7 V to 4.8 V
PB mode:
Adjust to 2 V[p-p] at video out.
0.7 V to 4.8 V
Filter off mode:
0 V to 0.3 V
Normally
0 ↔ 4.8
Filter off
0 ↔ 0.3
19
AN2492FH
ICs for VCR
■ Terminal Equivalent Circuits (continued)
Pin No.
54
Symbol
Equivalent circuit
SS det.
Det. pin
3 kΩ
55
Description
500 Ω
54
100 Ω
55
40 kΩ
100 Ω
SS out
DC 2.781
4 V ↔ 0.4 V
200 kΩ
500 kΩ
Voltage (V)
4V
or more
0.4 V
or less
56
RF det.
Det. pin
3 kΩ
DC 3
56 300 Ω
3 kΩ
57
FM in
200 mV[p-p]
3 kΩ
57
23 kΩ
20
20 kΩ
DC 3.26
ICs for VCR
AN2492FH
■ Terminal Equivalent Circuits (continued)
Pin No.
58
Symbol
Equivalent circuit
RF out
Description
Voltage (V)
400 mV[p-p]
DC 2.40
400 mV[p-p]
DC 2.49
58
59
DLIM in
3 kΩ
59
30 kΩ
60
MDE
DC (emitter)
1.6
61
60
61
MDC
DC 3.4
61
60
21
AN2492FH
ICs for VCR
■ Terminal Equivalent Circuits (continued)
Pin No.
62
Symbol
Equivalent circuit
Description
DCL in
Voltage (V)
DC 3.421
62
20 kΩ
63
3 kΩ
Clip in
DC 3.4
1 kΩ
19 kΩ
63
900 Ω
20 kΩ
64
150 mV[p-p]
VXO out
350 mV[p-p]
64
f = 3.5795 MHz
22
DC 3.33
470 Ω
VCC (Y)
= 4.8 V
0.22 µF
V53
C1
720 pF
1 µF 1 µF
43
6
44
5
45
46
4
3
47
2
48
1
0 pF 1 µF
100 µF
8
7
1 µF
9
41
42
10 kΩ
10 kΩ
10 µF 100 µF
V16
10
40
0.01 µF
39
3 kΩ
12
11
10 kΩ
13
37
38
0.01
µF
36
22 kΩ
14
0.1 µF
17
18
19
21
20
22
23
24
26
25
27
28
10 kΩ
0.01 µF
0.01 µF
V20
1.2 kΩ
470 Ω
0.22 µF
75 Ω
V21
3.3 µF
10 µF
30
29
10 µF
31
EQ
75 Ω
CONP C in
ADD out
0.01 µF
32
V33
35
0.01 µF 0.47 µF 1 µF
64
63
62
60
61
59
58
57
56
10 µF
1 µF
16
15
0.01 µF
82 pF
47 pF
3.3 µF
0.01 µF
0.01 µF
22 µH
75 Ω
54
53
SS out 55
3.3 µF
3.3 µF
0.01
µF
33
34
C2
Xtal (*1)
1.2 kΩ
470 Ω
1.2 kΩ
75 Ω
6 800 pF
0.47 µF
27 pF 1.2 kΩ
PB FM in
(JOG*DOC)
High
52
51
Video out
50
1 µF
1
MΩ
1
75 Ω
10 µF
3.3 µF
4.7
µF 100
µF
100 µF 0.01 µF
Open
49
75 Ω
0.01 µF
8
CONP in
Line in
0.22 µF
V48
VF out
1 kΩ
16
V46
NTSCCD-DL
0.1 µF
82
kΩ 100
µF
VCC (Y)
= 4.8 V
9
330 Ω
VCC (Y)
= 4.8 V
1
kΩ
VCC (Y)
= 4.8 V
0.01 100 0.01
3.3 µF µF µF µF
DL EQ
Data
CK
PG in
PB C in
V19
REC: FM out
(PB: DOC out)
V23
V25
720 pF
150 pF
VR
10 µF
ICs for VCR
AN2492FH
■ Application Circuit Example
REC out
C VCC
4.8 V
Note) *1: Optimize the C1 and C2 to meet Xtal characteristics.
1. Adjust variable resistor (VR), V33 voltage and variable resistor in that order so as to get a minimum level of chroma signal
at ADD out (pin 32) output. (REC mode, line mode, chroma 100% input)
2. The application circuit diagram in this data is just a typical circuit example as a reference data for use, and whatever the loss
caused or the infringement of the third party's industrial property right by the use of this circuit is not our responsibility.
23
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