LA7688 Datasheet, PDF (1/6 Pages) Sanyo Semicon Device – Single-Chip CTV Signal-Processing Circuit for PAL and NTSC Formats

Ordering number : EN5635
Monolithic Linear IC
LA7688
Single-Chip CTV Signal-Processing Circuit
for PAL and NTSC Formats
Overview
The LA7688 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.
[OSD]
• Analog OSD
[DEF]
• Automatic 50/60 Hz discrimination
• Fixed vertical size • Double AFC
• Built-in sync separator circuit
[Other features] • Sandcastle pulse (for the 1H delay line)
• fsc output (for SECAM systems)
• Primary color output
Package Dimensions
unit: mm
3218-DIP52S
[LA7688]
Features
[VIF]
• PLL detector • Buzz canceller
[SIF]
• PLL detector • Audio switch
[VIDEO]
• Built-in trap • Built-in DL
• Aperture control
• Video switch (SVO output)
• Black expansion
[CHROMA] • PAL/NT • Base band processing
(adjustment free)
• Built-in bandpass filter
Specifications
Maximum Ratings at Ta = 25°C
SANYO: DIP52S
Parameter
Symbol
Conditions
Maximum supply voltage
Maximum supply current
FBP input current
FBP input voltage
Allowable power dissipation
V₄₀ max
V₄₅ max
I₂₄ max
I₂₆ max
I₃₂ max
I₂₆ min
Pd max
Ta ≤ 65°C When mounted on a printed circuit board*
Operating temperature
Topr
Storage temperature
Tstg
Note : * Printed circuit board size: 83 × 86 × 1.5 mm, material: Bakelite
Operating Conditions at Ta = 25°C
Ratings
Unit
9
V
9
V
16
mA
5
mA
10
mA
–5
V
1.3
W
–10 to +65
°C
–55 to +150
°C
Parameter
Recommended supply voltage
Recommended supply current
Operating voltage range
Operating current range
Symbol
V₄₀
V₄₅
I24
V₄₀ op
V₄₅ op
I₂₄ op
Conditions
Ratings
Unit
7.6
V
7.6
V
12
mA
7 to 8.2
V
7 to 8.2
V
10 to 16
mA
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
82097HA(OT) No. 5635-1/6