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ICs for TV
AN5636K
SECAM/PAL signal conversion IC
■ Overview
The AN5636K is an IC which converts the SECAM
signal into the quasi-PAL signal. This IC can add the
SECAM signal processing function while rationalizing
the external parts in a joint use with the PAL/NTSC signal processing IC: AN5606K.
■ Features
• Rationalizing IHDL in common use with PAL IHDL
• Lowering 6H line crawling by the quasi-PAL modula-
tion
• For both auto and manual modes of signal processing
■ Applications
• TV (applicable to three systems: PAL/NTSC/SECAM)
26.7±0.3
3° to 15°
1
15
8.6±0.3
10.16±0.25
SDIP030-P-0400
30
Unit: mm
0.5±0.1
0.9±0.25
1.778
16
.1
0
+
5
.0
0
−
0.35
1.0±0.25
3.3±0.254.7±0.25
1
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ICs for TV AN5636K
■ Pin Descriptions
Pin No. Description
1 GND (chroma-system)
2 SECAM chroma input
3 Limiter feedback
4 Limiter feedback
5 System discrimination holding capacitor
6 Identification pulse fall setting
7 Not SECAM video signal input
8 Sand castle pulse input
9 SECAM video signal input
10 GND (video system)
11 Video signal output
12 Not SECAM chroma signal input
13 VCC (video system)
14 PAL chroma signal output
15 Identification pulse rise setting
16 Direct signal input
Pin No. Description
17 PAL color killer voltage input
18 Delay signal input
19 VCC (chroma system)
20 R−Y signal output
21 Reference bias power supply
22 B−Y signal output
23 System identification voltage output
combined with system forcing switch
24 4.43 MHz CW input
25 Line switch output
26 R−Y clamp capacitance
27 De-emphasis circuit
28 B−Y clamp capacitance
29 Discriminator
30 Discriminator
■ 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 operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
2: Ta = 70°C, Independent IC without a heat sink
*
*
1
*
1
*
CC
CC
P
D
T
opr
T
stg
6.0 V
100 mA
600 mW
−20 to +70 °C
−55 to +150 °C
3