92706 / O3005 MS PC B8-4714 No.0077-1/20
LA7688B
Overview
The LA7688B integrates VIF, SIF, video, chrominance, and deflection processing circuits for PAL/NTSC format TV sets on
a single chip and is provided in a 52-pin shrink package.
The VIF and SIF circuits achieve semi-adjustment-free operation, and are adjustment-free except for the VCO coil and the
RF AGC circuit. The chrominance circuit can be made adjustment-free by using the LC89950 1H delay line IC. All the signal
processing required for a multi-format color TV can be implemented by combining this product with the LA7642 SECAM
decoder IC.
Functions
VIF, SIF, VIDEO, CHROMA DEFLECTION
Specitications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
V40 max
9V
Maximum supply voltage
V45 max
9V
Maximum supply current
I24 max
16
mA
I26 max
5mA
FBP input current
I32 max
10
mA
FBP input voltage
V26 min
-5
V
Allowable power dissipations
Pd max
Ta
≤ 65°C, Mounted on board
1.3
W
Operating temperature
Topr
-10 to +65
°C
Storage temperature
Tstg
-55 to +150
°C
Board size : 83×86×1.5mm, material : bakelite
Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
V40
7.6
V
Recommended supply voltage
V45
7.6
V
Recommended supply current
I24
12
mA
V40 op
7 to 8.2
V
Operating supply voltage range
V45 op
7 to 8.2
V
Operating supply current range
I24 op
10 to 16
mA
Ordering number : ENA0077
Monolithic Linear IC
PAL/NTSC Color Television-use
Single-chip LSI
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.