Panasonic AN5138NK Datasheet

■ Overview

The AN5138NK is an integrated circuit designed for
video-IF and audio-IF processing circuits, in color TV and
VCR.

■ Features

•

By adopting built-in VCO PLL-type video-detector cir­cuit, the high preformance IC-detector system can be
realized for sound multiplex and tele-text broadcasting.

•

Quadrature sound FM detector built-in.

•

Frequency characteristics compensation pin (Pin20)
VCR-switch pin (Pin5)

•

Sound-output level-adjustment pin (Pin25)

1

ICs for TV

AN5138NK

Video IF Amplifier, PLL Detector, AGC, AFC, SIF IC for Color TV

1
2
3
4
5
6
7
8

9
10
11
12
13
14

19
18
17
16
15

20

21

22

23

24

25

26

27

28

26.7±0.3

8.4±0.3

10.16±0.25

3 to 15˚

0.3

+ 0.1

– 0.05

4.8±0.25

1.05±0.25

3.05±0.25

1.778

0.5±0.1

0.9±0.25

Unit : mm

28-Pin Shrunk DIL Plastic Package

■ Block Diagram

SIF

VIF
Amp.

IF
AGC

RF
AGC
Delay
Adj.

Filter

RF
AGC
Out.

Lock
Det.

AFC
SW

Video
Det.

+
–

Video Output

Noise
Inverter

AFC

AFC
Out.

SIF
Trap

17

Video
Inverter

16

15

VCO

APC
Det.

1110987654

14

13

CC

V

12

VCC

Audio Level Adj.

Audio
Output

26

27

28

25 24 23 22 21 20 19 18

Level
Adj.

FM
Det.

VTR

SIF

SW

Amp.

1

RF
AGC

VTR SW

IF

+

AGC

–

Filter

2

3

VCC

IF
Input

2

ICs for TV

AN5138NK

Parameter Symbol Rating Unit

V

CC

V

5-1, 14, 21

V

6-1, 14, 21

V

7-1, 14, 21

V

10-1, 14, 21

I

17

I

19

P

D

T

opr

T

stg

Circuit Voltage

Circuit Current

Supply Voltage

Operating Ambient Temperature

Power Dissipation (Ta=70˚C)

Storage Temperature

Voltage

Current

Temperature

13.8

1,300

–20 to + 70

–55 to + 150

V

mW

˚C
˚C

V

mA

V

V
V

mA

V

4, 12-1, 14, 21

0

V

4, 12-1, 14, 21

0

V

4, 12-1, 14, 21

0

V

4, 12-1, 14, 21

0

–7 + 0.5
–7 + 0.5

V

18-1, 14, 21

V

25-1, 14, 21

I

26

V

V

4, 12-1, 14, 21

0

V

8.0 0

mA

–5 + 0.5

■ Absolute Maximum Ratings (Ta=25˚C)

f= 58.75MHz, Vi= 80dBµ, m= 87.5% 1.9 2.2 2.5 V

P-P

50 70 90 mA

V

O

I4 + I

12

S (IN)

V1 (max.)

DG

G

RFAGC

VO= –3dB

Video detector output
Input sensitivity
Max. allowable input

49

103

5.5
40

53

108

2

6.5
44

57

6

7.5
48

dBµ
dBµ

%

MHz

dB

Parameter minCondition typ max UnitSymbol

IF Amplifier · Detection · AGC · AFC Circuit

Differential gain
Differential phase
Frequency characteristics
RF AGC gain
AFC phase det. sensitivity
AFC center voltage

VCO · APC Circuit

VCO control sensitivity
APC pull-in range (1)
APC pull-in range (2)

SIF Circuit

Circuit current

DP

fc

µ

V

10

β

f

APC (1)

f

APC (2)

f =58.75MHz, Vi= 80dBµ, m= 87.5%
f =58.75MHz, Vi= 80dBµ, m= 87.5%

f =10kHz, Vi=10mV
R

L

= 68kΩ//82kΩ

RL= 68kΩ//82kΩ

V

13

= 2V

2 5 deg

30 45 60

mV/kH

z

4.2 6.5 8.2 V

0.8 1.5 2.5 MHz

3 4.5 6

kH

z/mV

+ 0.85 +1.5 + 2.5 MHz

–3.5 – 2.5 –1.6 MHz

VCO max. variable range (1)
VCO max. variable range (2)

Total detector output

Input limiting voltage

DC Characteristics

∆f

V (1)

∆f

V (2)

V

O

V

i (lim)

VO= –3dB

V13= 3V

f

o

= 4.5MHz, fm= 400Hz

∆f= ±25kHz, Vi=100dBµ
f

o

= 4.5MHz, fm= 400Hz

∆f= ±25kHz, Vi=100dBµ

–3.4 – 2.4 –1.4 MHz

490 620 950 mV

rms

42 47 dBµ

■ Electrical Characteristics (VCC=12V, Ta=25˚C)