AN5385K Datasheet, PDF (1/9 Pages) Panasonic Semiconductor – Contour correction IC

ICs for TV
AN5385K
Contour correction IC
s Overview
The AN5385K is an IC which conducts contour
correction for luminance signal and color differ-
ence signal. It corresponds to all broadcasting sys-
tems of PAL, NTSC and SECAM. Fewer external
parts enables the TV sets to be less cost and high
picture quality.
s Features
• Black side contour emphasis and white side shoot
elimination circuit are built in (for anti-blooming)
• Transient correction of color difference signal
(color missing improvement)
• Red gamma correction circuit built in
• Wider band of signal processing (Y: 7 MHz/−3
dB, Color difference: 3 MHz/−3 dB)
• Delay time is identical for both Y and color
difference.
• Delay amount switch is built in
• Delay line and coupling condenser built in
s Applications
• Color TV, wide TV
s Block Diagram
19.1±0.3
22
12
1
11
Unit: mm
1.778
Seating plane
0.5±0.1
0.90±0.25
SDIP022-P-0300A
7.62±0.25
3°
to
15^°
0.35^{+–00.1.005}
12
Y_IN
Sync chip
clamp
16
U_IN
Pedestal
clamp
C-pulse ¹⁸
V_IN ²⁰
Pedestal
clamp
Delay line
Delay line
Delay line
Delay
switch
Correction signal
generation, white
side shoot erase
Delay line
Correction
signal
generation
Delay line
Correction
signal
generation
Delay line
8
Y_OUT
Red gamma
correction
6
U_OUT
1
CTIG
4
V_OUT
1