Ordering number : EN5693
Monolithic Linear IC
LA7642N
SECAM Format Color TV Chrominance Circuit
Overview
The LA7642N integrates the chrominance circuit for a
SECAM format TV in a single 16-pin DIP (300 mil)
package and provides an adjustment-free discriminator
circuit. In combination with the Sanyo LA7687, LA7688,
this IC can implement a multi-format color TV signal-
processing system.
Package Dimensions
unit: mm
3006B-DIP16
[LA7642N]
Features
鈥?Adjustment-free discriminator circuit
鈥?On-chip bell filter
SANYO: DIP16
Specifications
Maximum Ratings
at Ta = 25擄C
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
Pd max
Topr
Tstg
Ta
鈮?/div>
65擄C
Conditions
Ratings
9
400
鈥?0 to +65
鈥?5 to +125
Unit
V
mW
擄C
擄C
Operating Conditions
at Ta = 25擄C
Parameter
Recommended operating voltage
Operating voltage range
Symbol
V
CC
V
CC
op
Conditions
Ratings
7.8
7.0 to 8.5
Unit
V
V
Operating Characteristics
at Ta = 25擄C, V
CC
= 7.8 V, with pin 13 pulled up to V
CC
through a 20-k鈩?resistor
Parameter
[Circuit Voltage and Current]
Circuit current
[Filter Block]
Input impedance
The pin 14 input impedance. For reference
only (design value)
15
k鈩?/div>
I
CC
Chrominance system. Measure the current
flowing into pin 15; With no signal applied to
pin 14.
28
35
42
mA
Symbol
Conditions
Ratings
min
typ
max
Unit
Continued on next page.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73097HA(OT) No. 5693-1/6
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