Datasheet AN2492FH Datasheet (Panasonic)

ICs for VCR

AN2492FH

Luminance and chrominance signal processing circuit for
8 mm video (NTSC)

■ Overview

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.

■ Features

• 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)

49

64

(1.25)

0.10±0.10

12.00±0.20

10.00±0.20

48 33

0.50

0.18

Seating plane

32

17

161

+0.10

−0.05

(1.25)

+0.10

10.00±0.20

−0.05

0.15

12.00±0.201.95±0.20

Unit: mm

(1.00)

0° to 10°

0.50±0.20

■ Applications

• 8 mm VCR, 8 mm video camera

QFP064-P-1010

1

AN2492FH ICs for VCR

■ Block Diagram

CTL

NL in

LNC out

CCL det.

CDL in

G1 det.

ADD out

CTL1

CONP C

L IMC

To CCD

G2 det.

YDL in

YCL det.

CL in

ML out
Y GND

Video out

Y V

VNF

VF mute CTL

VF out

V mute CTL

Clamp det.

Line in

ME out

W CTL

ME NF

25

27

26

Clamp

HSS

SW 12

PR

N.C.

HPF

LIM

28

Amp.

29

(COR det. out)

24

W/D

0

f

23222120191817

Smear

DEV CTL

MOD

GCA3 CTL

FM out (DOC)

GCA3

HPF1

30

GCA1

31

Clamp

32
33

34
35

V mute

Mute

36

37
38

GCA2

Trap

39

40

Clamp

41
42

SW 4

NOR PS

43
44

CC

Sub 2

SW 8

ATT

CORR

BPF

SW 18

P

R

SW 11

MIX

(d)

R

N

Sync.

DOC

SW 5

CNR

LIM

Line

Det.

CTL

C

A

Clamp

CONP

Det.

SW 6

PB

P

CONP

SW 2

Chroma

PB

Line

SW 15

DE/EM

P

P

R

45
46

47

OSD

SW 1

OSD

Main

LPF

SW 3

P

R

C

ATT

PBY

DL

48

OSD

49

50

SW 21

51

AGC det.

SW 0

SW 19

R

AGC

52

Clamp

P

CONP Y

SS

AGC

det.

Test 9

54

53

55

SS det.

56

SS out

RF AGC

57

FM in

RF det.

58

REC PB VOL

DOC

RF out

MA in

LIM

D LIM

59

D LIM in

DEMOD

Sub

60

MDE

LPF

61

MDC

DCL Amp. Amp.

62

DCL in

Clip

63

Clip in

90 PS

64

out

VXO

CEC det.

CE CTL

R

SW 16

1/46 1/8

Sub BM

VXO

1

VXO in

PB C in

C sub

P

R

ACC

R

BM

Burst

DE/EM

SLD

REC APC

2

REC APC det.

LPF

LPF

P

P

DP PC

R

SW 14

SW 17

REC

V

3

det.

V

SW 13

AFC

4DIV

F PC

REF

REF

CACC

CK PC

1/4

4

Trap

LPF

ACC det.

CK

PBA PC

out

SC

f

HPF

GCA4

1/8 CL det.

1/4

VCO

f det.

1/8

16

CK

15

14

13

12

11

10

9

8

7

6

5

GCA4 CTL

REC C out

CLCA det.

PB C out

C MIX in

C GND

Data

CK

C V

CC

PG in

PB APC det.

f

det.

2

ICs for VCR AN2492FH

■ Pin Descriptions

Pin No. Description

1 VXO in
2 REC APC det.
3V
4f

det.

REF

out

SC

5 f det.
6 PB APC det.
7 PG in.
8C V

CC

9CK
10 Data
11 C GND
12 C MIX in
13 PB C out
14 CLCA det.
15 REC C out
16 GCA4 CTL
17 PB C in
18 CEC det.
19 Chroma emph. CTL
20 GCA3 CTL (APT CTL)
21 FM out (DOC)
22 DEV CTL
23 f0 CTL
24 ME out (COR det. out)
25 W CTL
26 MENF
27 NL in
28 LNC out
29 CCL det.
30 CDL in
31 G1 det.
32 ADD out

Pin No. Description

33 GCA1 CTL
34 CONP C
35 LIMC
36 To CCD
37 G2 det.
38 YDL in
39 YCL det.
40 CL in
41 ML out
42 Y GND
43 Video out
44 Y V

CC

45 VNF
46 VF mute CTL
47 VF out (BGP out)
48 V mute CTL
49 Clamp det.
50 Line in
51 AGC det.
52 CONP Y
53 REC PB VOL
54 SS det.
55 SS out
56 RF det.
57 FM in
58 RF out
59 DLIM in
60 MD E
61 MD C
62 DCL in
63 Clip in
64 VXO out

3

AN2492FH ICs for VCR

■ Absolute Maximum Ratings

Parameter Symbol Rating Unit

Supply voltage V
Supply current I

2

Power dissipation
Operating ambient temperature
Storage temperature

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.

*

*

*1, *

1

*

CC

CC

P

D

3

T

opr

T

stg

■ Recommended Operating Range

Parameter Symbol Range Unit

5.5 V
100 mA
359 mW

−10 to +70 °C

−55 to +125 °C

Supply voltage V

CC

■ Electrical Characteristics at VCC = 4.8 V, Ta = 25°C

Parameter Symbol Conditions Min Typ Max Unit

Consumption current 1 I
Consumption current 2 I
Consumption current 3 I
Consumption current 4 I
Internal reference voltage source V
REC overall V

Y-AGC control characteristics ∆V

Y-AGC through mode V
View finder amp. frequency f

characteristics at input 100 kHz, 5 MHz
Video-OSD white mute level V
Video-OSD black mute level V
Video-OSD white mute CTL V

voltage character
Video-OSD black mute CTL V

voltage character
Video-OSD through CTL voltage

V

Consumption current for recording 52 72 92 mA

CC1

Consumption current for playback 58 78 98 mA

CC2

Power save mode 42 62 82 mA

CC3

Camera power save mode −8 −4.2 −1mA

CC4

Pin 3 voltage  2.5  V

REF

Adjust pin 53 to set pin 47 output −14 −12 −10 dB

ME

at 1 V[p-p]
Pin 47 output gain ratio with input −1.5 0 1.5 dB

AGC

0.5 V[p-p] and 2.0 V[p-p]
Pin 24 output at pin 50 input 200 250 300 mV[p-p]

26S

Output ratio of 5 MHz/100 kHz −1.5 0 1.5 dB

BA

DC voltage based on a pedestal level 56 68 80 IRE

OW

DC voltage based on a pedestal level −7 0 12 IRE

OB

Pin 48 input at inserting a record 3.6  4.8 V

48W

Pin 48 input at inserting a record 2.0  2.6 V

48B

Pin 48 input at inserting a record 0  1.0 V

48S

character

4.7 to 5.2 V

4

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 V

Video-OSD quasi V mute CTL V
voltage

Video-OSD through CTL V
voltage

Y-main-LPF frequency Df
characteristics 1 Output: 2.5 MHz/100 kHz

Y-main-LPF frequency Df
characteristics 2 Output: 3.58 MHz/100 kHz

Video amp. output amplitude V
Video amp. frequency f

characteristics Output: 5 MHz/100 kHz
View finder OSD white mute level
View finder OSD black mute level

V

V

View finder OSD white mute V
CTL voltage the display characters

View finder OSD black mute V
CTL voltage the display characters

View finder OSD through CTL V
voltage the display characters

View finder OSD quasi V level V

View finder OSD quasi V mute V
CLT voltage

View finder OSD through CTL V
voltage

PB OSD white mute level V
PB OSD black mute level V
PB OSD white mute CTL V

voltage the display characters
PB OSD black mute CTL V

voltage the display characters
PB OSD through CTL voltage V

PB OSD off V

Sync. separation min. input V
sensitivity

Sync. separation pulse delay t
amount pin 40 and pin 55

DC voltage difference based on sync. −100 −50 0 mV

OV

tip in PB mode
PB mode, pin 48 input 2.0  4.8 V

48V

PB mode, pin 48 input 0  1.0 V

48G

Input: 100 kHz, 2.5 MHz −5 −22 dB

ML1

Input: 100 kHz, 3.58 MHz −25 dB

ML2

VF out 1 V[p-p] adjustment 1.75 2.0 2.25 V[p-p]

VO

Input: 100 kHz, 5 MHz −1.5 0 1.5 dB

VI

DC voltage based on a pedestal level 56 68 80 IRE

BOW

DC voltage based on a pedestal level −7 0 12 IRE

BOB

Pin 48 = 0 V at inserting 3.6  4.8 V

46W

Pin 48 = 0 V at inserting 2.0  2.6 V

46B

Pin 48 = 0 V at inserting 0  1.0 V

46S

DC voltage based on sync. tip in −60 −20 20 mV

BOV

PB mode
PB mode, pin 48 input 2.0  4.8 V

B48V

PB mode, pin 48 input 0  1.0 V

B48S

DC voltage based on a pedestal level 56 68 80 IRE

POW

DC voltage based on a pedestal level −7 0 12 IRE

POB

Pin 48 = 0 V at inserting 3.6  4.8 V

46W

Pin 48 = 0 V at inserting 2.0  2.6 V

46B

Pin 48 = 0 V at inserting 0  1.0 V

46S

the display characters
Pin 48 = 0 V at inserting 1.75 2.0 2.25 V[p-p]

VOO

the display characters
Input sync. level 65 mV[p-p]

SS

Measurement of sync. delay at 560 760 960 ns

SS

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
Sync. separation output amplitude 2
Non linear emphasis 1 f
Non linear emphasis 2 f
Non linear emphasis 3 f
Non linear de-emphasis 1 f
Non linear de-emphasis 2 f
Non linear de-emphasis 3 f
Dark clip level V
White clip level V
FM carrier interleave V
FM modulator oscillation frequency
FM modulator deviation CTL f
FM modulator secondary distortion
Y-FM-GCA output amplitude 1 V
Y-FM-GCA output amplitude 2 V
PB-Y-RFAGC output amplitude V
PB-Y-RFAGC output secondary distortion
PB-over-all 1 (NOR) V
FM demodulation linearity 1 ∆V

Dropout detection on level V
Dropout detection off hysteresis ∆V
Dropout detection ENV off V
Dropout detection output high-level
Dropout detection output low-level
Noise canceller frequency f

characteristics 1 1 MHz/50 kHz
Noise canceller frequency f

characteristics 2 1 MHz/50 kHz
Noise canceller frequency f

characteristics 3 1 MHz/50 kHz
Noise canceller frequency f

characteristics 4 1 MHz/50 kHz
NC off mode f

Clip comp. limiter level V
Line noise canceller frequency f

characteristics 1

V

SSH

V

SSL

RNL1

RNL2

RNL3

PNL1

PNL2

PNL3

CD

CW

f

0

DEV

2f

FM

FMS

FML

2f

NOR

NOR

DOC

DOC

DOCH

V

P21H

V

P21L

NC11

NC12

NC13

NC14

NCOFF

CL

LNC1

Pin 55 output amplitude 4.0  V
Pin 55 output amplitude 0.4 V
Input: 0 dB, output: 1 MHz/10 kHz 1.0 3.0 5.0 dB
Input: −10 dB, output: 1 MHz/10 kHz 3 .7 6.2 8.7 dB
Input: −20 dB, output: 1 MHz/10 kHz 6.3 9.3 12.3 dB
Input: 0 dB, output: 1 MHz/10 kHz −5.0 −3.0 −1.0 dB
Input: −10 dB, output: 1 MHz/10 kHz −10 −7.5 −5.0 dB
Input: −20 dB, output: 1 MHz/10 kHz −11.5 −8.5 −5.5 dB
Fixed 90 100 110 %
Adjust at pin 25  220  %
Apply voltage to pin 7  1.64  mV[p-p]

CI

Adjust at pin 23  4.2  MHz
Apply voltage to pin 27, adjust at pin 2

2  2.4  MHz/V
Pin 21 output −30 dB
Pin 20 = 0 V 100 mV[p-p]
Pin 20 = 4.8 V 370 mV[p-p]
Input 50 mV[p-p], 200 mV[p-p], f = 5 MHz

58

Input 100 mV[p-p], f = 5 MHz −30 dB

58

345 420 495 mV[p-p]

Pin 47 output, adjust pin 53  1.0  V[p-p]
Input 3 MHz, 5 MHz, 7 MHz 90 97 110 %

Pin 63 = 4.8 V, adjust pin 53
Input pin 57, f = 5 MHz −17 −12 −7dB
Input pin 57, f = 5 MHz 1 4 10 dB
Input pin 57, f = 5 MHz 5 8 11 H
Input pin 57, pin 21 output 2.8  V
Input pin 57, pin 21 output 0.4 V
Input 0 dB, NC1 mode output −3 − 0.3 0.5 dB

Input −10 dB, NC1 mode output −3.5 − 0.8 0.5 dB

Input −20 dB, NC1 mode output −6 −2.3 0 dB

Input −30 dB, NC1 mode output −10 −6.5 −3.0 dB

Input −30 dB, NC1 mode output −10 −6.5 −3.0 dB
1 MHz/50 kHz, NC off

Input pin 63, pin 41 output 45 7 0 95 mV
Input 0 dB −2.2 − 0.2 1.8 dB

6

ICs for VCR AN2492FH

■ Electrical Characteristics at VCC = 4.8 V, Ta = 25°C (continued)

Parameter Symbol Conditions Min Typ Max Unit

Line noise canceller frequency f

LNC2

characteristics 2
Line noise canceller (off) f
C-BPF frequency characteristics 1

C-BPF frequency characteristics 2

C-BPF frequency characteristics 3

C-BPF frequency characteristics 4

LNC3

f

f

f

f

REC APC pull-in range 1 +∆f

REC APC pull-in range 2 −∆f

Xtal output amplitude V
Xtal oscillation frequency f
ACC output amplitude V
ACC control characteristics ∆V
ACC maximum gain V
C ACC output characteristics V

Burst emphasis amount V
Burst de-emphasis amount V
Chroma de-emphasis characteristics 1
Chroma de-emphasis characteristics 2
Chroma de-emphasis characteristics 3
Chroma de-emphasis characteristics 4
REC chroma out level 1 V
REC chroma out level 2 V

V
V
V
V

RCO1

RCO2

Color killer on level CK

Color killer off level CK

PB APC pull-in range 1 ∆f
PB APC pull-in range 2 ∆f
CNR characteristics 1 CNR3
CNR characteristics 2 CNR4
PB burst level V
Clip comp. gain V

Input: −30 dB −15.0 −8.5 −3.0 dB

Input: −30 dB −1.5 0 1.5 dB
Input: 100 mV[p-p], −2.5 − 0.5 −1.5 dB

BP1

output: 3.28 MHz/3.58 MHz
Input: 100 mV[p-p], −2.5 − 0.5 −1.5 dB

BP2

output: 3.88 MHz/3.58 MHz
Input: 100 mV[p-p], −20 dB

BP3

output: 2.09 MHz/3.58 MHz
Input: 100 mV[p-p], −20 dB

BP4

output: 5.07 MHz/3.58 MHz
Input: fSC +300 Hz 275  Hz

SC

Pin 4 output (specified Xtal)
Input: fSC −300 Hz −275 Hz

SC

Pin 4 output (specified Xtal)
Pin 4 output, at lock (specified Xtal) 320 520 720 mV[p-p]

FSC

Pin 4 frequency deviation at PB −50  50 Hz

SC

Pin 34 input, pin 15 output (test 3) 350 450 600 mV[p-p]

AC

Level ratio of −14 dB to 6 dB input −2.0 0 2.0 dB

AC

Input/output level ratio 14 20  dB

ACM

Output burst ratio at input chroma 1.0 3 5.0 dB

CAC

signal 0 dB and −14 dB
Pin 34 input, pin 15 output 4.0 6.0 8.0 dB

BU

Pin 17 input, pin 13 output −8.5 −6.0 −3.5 dB

BD

Input: 0 dB, output: fsc +500/fsc −3.3  1.3 dB

CE1

Input: 0 dB, output: fsc −500/fsc −3.3  1.3 dB

CE2

Input: −10 dB, output: fsc −500/fsc −5.8 −1.0 dB

CE3

Input: −10 dB, output: fsc +500/fsc −5.8 −1.0 dB

CE4

Pin 16 = 0 V, pin15 output 100 mV[p-p]
Pin 16 = 4.8 V, pin 15 output 230 mV[p-p]
Pin 34 input signal, 100 mV[p-p] → 0.4 V

ON

2 mV[p-p], pin15 output DC
Pin 34 input signal, 0 mV[p-p] → 1.5 1.9 2.3 V

OFF

40 mV[p-p], pin15 output DC
Pin 40, pin 17 input, pin 13 output −100  100 Hz

XO1

Pin 40, pin 17 input, pin 13 output −100  100 Hz

XO2

Pin 40 white 50%, pin 52: B+C signal input
Pin 40 white 50%, pin 52: B+C signal input
Pin 13 output burst level 110 200 280 mV[p-p]

PBC

Input pin 63, pin 41 output −8.5 −6 −3.5 dB

CG

−13 −9 −5.5 dB

−13 −9 −5.5 dB

7

AN2492FH ICs for VCR

■ Terminal Equivalent Circuits

Pin No. Symbol Equivalent circuit Description Voltage (V)

1 VXO in 500 mV[p-p] DC 2.76

1

f = 3.5795 MHz

2.38 kΩ

3 kΩ

1.62 kΩ

2 REC APC Det. pin DC 2 ± 0.75

det.

5 kΩ

2

3V

det. Bias pin DC 2.48

REF

3 kΩ

3

4fSC out AC 540 mV[p-p] DC 2.7

f = 3.5795 MHz

4

8

ICs for VCR AN2492FH

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

5 f det. Det. pin 

3 kΩ

5

6 PB APC Det. pin DC

det. 1.974 ± 0.75

3 kΩ

40 kΩ

3 kΩ

6

7 PG in *FM out comes to high frequency 0 ↔ 4.8

with high carrier interleave (reference:

DC 2.5 V)

30 kΩ

7

4.8 V

0 V

8C V

CC



9CK 0 ↔ 4.8

(reference:
DC 2.5 V)

10 kΩ

9

4.8 V

0 V

9

AN2492FH ICs for VCR

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

10 Data 0 ↔ 4.8

(reference:
DC 2.5 V)

4.8 V

10 kΩ

10

0 V

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 DC

14

200 Ω

3 kΩ

3 kΩ

3 kΩ

10

3.62 ± 0.75

ICs for VCR AN2492FH

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

15 REC C out 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

3 kΩ30 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 Equivalent circuit Description Voltage (V)

19 CE CTL Chroma emphasis, de-emphasis 0 to 4.8

19

10 kΩ

10 kΩ

20 CTL 3 REC mode (GCA3 control) 0 to 4.8

20

100 kΩ

10 kΩ25 kΩ

100 kΩ

adjustment pin

Adjustment off at 1 V or less

(1.5 to 3.0)

21 FM out REC mode

DC 3.35

3 kΩ

100 mV to

21

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 1.3 to 3.7

at 100% white. typ. 2.5

3 kΩ

22

23 f0 CTL Adjust FM out to 4.2 MHz 1.3 to 3.7

at sync. tip. typ. 2.5

3 kΩ

23

12

ICs for VCR AN2492FH

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

24 ME out DC 2.195

30 kΩ

30 kΩ

250

10 kΩ

30 kΩ

24

25 W CTL Adjust a white clip level to 220%. 1.5 to 3.7

25

48 kΩ

30 kΩ

mV[p-p]

typ. 2.0

26 MENF DC 2.19

(sync. tip)
(With exter­nally attached

3 kΩ

26

250
mV[p-p]

feedback re­sistor R)

27 NL in DC 2.93

(sync. tip)

3 kΩ

27

500
mV[p-p]

13

AN2492FH ICs for VCR

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

28 LNC out DC 3.14

(sync. tip)

28

500
mV[p-p]

29 CCL det. 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 kΩ3 kΩ

150
mV[p-p]

B: 143 mV[p-p]
f = 3.5795 MHz

31 G1 det. Det. pin DC

31

3 kΩ3 kΩ

14

3.515 ± 0.75

ICs for VCR AN2492FH

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

32 ADD out

32

Adjust pin 33 voltage (CTL1)
to mix

a chroma

signal.

33 CTL 1 Adjust so that a comb shape chroma DC 2.994

level adjustment pin 32 (ADD out)

80 kΩ

becomes Y signal only.

so as not DC 2.0

3 kΩ

33

120 kΩ

34 CONP C DC 1.96

10 kΩ

34

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 Equivalent circuit Description Voltage (V)

36 To CCD DC 2.031

(sync. tip)

16.7

kΩ

20 kΩ

3 kΩ

20
kΩ

150
mV[p-p]

B: 143 mV[p-p]
f = 3.5795 MHz

20 kΩ

60 kΩ

40 kΩ

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

3 kΩ50 kΩ

150
mV[p-p]

B: 143 mV[p-p]
f = 3.5795 MHz

39 YCL det. Det. pin DC

39

3 kΩ

3 kΩ

16

2.66 ± 0.75

ICs for VCR AN2492FH

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

40 CL in 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

20 kΩ

30 kΩ

41

143 mV[p-p]

500 mV[p-p] with 100% white input

42 Y GND 

43 Video out 2 V[p-p] with 100% white input DC 1.236

(sync. tip)

3 kΩ

60 kΩ

20 kΩ

43

0.6V

[p-p]

B: 0.57 V[p-p]

44 Y V

CC

45



f = 3.5795 MHz

45 VNF DC 1.237

(sync. tip)

3 kΩ

20 kΩ

60 kΩ

45

150
mV[p-p]

43

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 Equivalent circuit Description Voltage (V)

46 VF mute VF amp.-OSD-CTL voltage 0 V to 4.8 V

10 kΩ

46

47 VF out DC 1.968

(sync. tip)

300
mV

47

[p-p]

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 DC 3.506

3 kΩ

3 kΩ

49

18

ICs for VCR AN2492FH

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

50 Line in DC 3.2

3.5 kΩ

50

60 kΩ

41.5 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 DC 1.63

375 Ω

100 kΩ

52 CONP Y DC 3.2

52

60 kΩ

3.5 kΩ

41.5 kΩ

3 kΩ

51

286
mV

[p-p]

(AGC through mode is 6 dB down.)

53 REC PB REC mode: Normally

VOL Adjust to 2 V[p-p] at video out. 0 ↔ 4.8

200 Ω

53

3 kΩ

3 kΩ

3 kΩ

0.7 V to 4.8 V

PB mode: Filter off
Adjust to 2 V[p-p] at video out. 0 ↔ 0.3

0.7 V to 4.8 V

Filter off mode:

0 V to 0.3 V

19

AN2492FH ICs for VCR

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

54 SS det. Det. pin DC 2.781

3 kΩ

500 Ω

54 55

40 kΩ

55 SS out 4 V ↔ 0.4 V

500 kΩ

100 Ω

100 Ω

200 kΩ

4 V
or more

0.4 V
or less

56 RF det. Det. pin DC 3

56

300 Ω

3 kΩ

3 kΩ

57 FM in 200 mV[p-p] DC 3.26

20

23 kΩ

3 kΩ

57

20 kΩ

ICs for VCR AN2492FH

■ Terminal Equivalent Circuits (continued)

Pin No. Symbol Equivalent circuit Description Voltage (V)

58 RF out 400 mV[p-p] DC 2.40

58

59 DLIM in 400 mV[p-p] DC 2.49

59

3 kΩ

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. Symbol Equivalent circuit Description Voltage (V)

62 DCL in DC 3.421

62

3 kΩ

20 kΩ

63 Clip in DC 3.4

1 kΩ

19 kΩ

900 Ω

20 kΩ

63

150 mV

[p-p]

64 VXO out 350 mV[p-p] DC 3.33

64

f = 3.5795 MHz

22

ICs for VCR AN2492FH

■ Application Circuit Example

DL EQ

V23

720 pF

470 Ω

SS out

0.47 µF

0.22 µF

V25

1.2 kΩ

0.01 µF

PB FM in

75 Ω

V21

1.2 kΩ

27 pF

REC: FM out

(PB: DOC out)

0.01 µF

1.2 kΩ

720 pF

Data

CK

PG in

PB C in

V19

75 Ω

V20

470 Ω

(Y)

CC

V

0.01 µF

3.3 µF

1.2 kΩ

= 4.8 V

47 pF

0.01 µF

17

64

10 kΩ

16
15

14
13
12

0.1 µF

11
10
9
8

7
6
5
4

3
2
1

1)
*

Xtal (

C1

470 Ω

V16

REC out

100 µF

10 µF

10 kΩ

10 kΩ

100 µF

0.01 µF

3 kΩ

10 kΩ

µF

0.01

22 kΩ

82 pF

22 µH

C2

C V

CC

4.8 V

0 pF

1 µF1 µF

1 µF

0.47 µF

0.01 µF

0.01 µF

(Y)
V

CC

(Y)
V

CC

= 4.8 V

= 4.8 V

0.01
100

0.01

150 pF

10 µF

1 µF

µF

100

µF

4.7

75 Ω

CONP C in

ADD out

0.01 µF

323130292827262524232221201918

V33

33
34

35

1 µF10 µF

1 µF

36
37

38
39
40

3.3 µF

41
42

43
44
45

46
47

98

0.01 µF

µF

100

82

kΩ

0.1 µF

1

kΩ

µF
µF

µF

3.3 µF

NTSCCD-DL

16 1

(Y)
V

Video out

VF out

Open

CC

= 4.8 V

330 Ω

1 µF

µF

0.01

1

MΩ

0.01 µF

100 µF

75 Ω

1 kΩ

V46

VR

0.22 µF

EQ

3.3 µF

10 µF

10 µF

48

V48

495051525354555657585960616263

75 Ω

10 µF

CONP in

3.3 µF

75 Ω

(JOG*DOC)

6 800 pF

V53

High

3.3 µF

0.22 µF

Line in

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