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PDF LA7688 Data sheet ( Hoja de datos )
| Número de pieza | LA7688 | |
| Descripción | Single-Chip CTV Signal-Processing Circuit for PAL and NTSC Formats | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LA7688 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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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
9
9
16
5
10
–5
1.3
–10 to +65
–55 to +150
Unit
V
V
mA
mA
mA
V
W
°C
°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
7.6
7.6
12
7 to 8.2
7 to 8.2
10 to 16
Unit
V
V
mA
V
V
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
1 page  
Continued from preceding page.
Parameter
Symbol
Vertical external trigger load resistance
RTR
Vertical automatic synchronization stop voltage
Horizontal AFC gate release voltage
Vertical output start VCC voltage
Horizontal free-running deviation
Horizontal free-running frequency VCC
dependence
VSAS
VGS
SVV
∆fH
∆fH/VCC
Horizontal pull-in range
Horizontal output start VCC voltage
AFC2 FBP peak value H
AFC2 FBP peak value M
AFC2 FBP peak value L
Horizontal output pulse width
Horizontal output phase maximum
fHPLL
SHV
FBPH
FBPM
FBPL
PWHOUT
HPmax
Horizontal output phase center
HPcen
Horizontal output phase minimum
HPmin
Burst gate pulse width
Burst gate pulse phase
50/60 Hz output voltage 50
PWBGP
TdBGP
V50
50/60 Hz output voltage 60
V60
50/60 Hz input voltage 50
50/60 Hz input voltage 60
SECAM V pulse peak value
VIN50
VIN60
SVH
SECAM V pulse width
SVW
LA7688
Conditions
min
3.0
–150
±450
6.0
3.2
–0.3
21.8
14
4.8
3
–0.2
3.8
0.5
Ratings
typ
4.7
1.4
2.0
4.2
0
2
4.8
6.5
3.7
+0.2
23.8
17
5.8
3.8
4
+0.3
1.1
4.1
1.8
11.0
2.2
11.5
max
1.9
2.5
4.7
+150
5.2
7.0
4.2
+0.7
25.8
6.8
4.8
5
+0.8
1.5
7.0
2.6
12.0
Unit
kΩ
V
V
V
Hz
Hz
Hz
V
V
V
V
µs
µs
µs
µs
µs
µs
V
V
V
V
V
H
No. 5635-5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LA7688.PDF ] | |
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