MC44462 Datasheet, PDF (1/7 Pages) Motorola, Inc – Y–C PICTURE–IN–PICTURE (PIP) CONTROLLER

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Y-C Picture-in-Picture
(PIP) Controller
The MC44462 Y–C PIP controller is a low cost member of a family of high
performance PIP controllers and video signal processors for television. It is a
follow–up to the MC44461 PIP and has a modified input selection to allow
higher performance in TV systems which have S–Video inputs on the back
panel. The S–Video input is separate luma (luminance) and chroma
components. It is NTSC compatible and contains all the analog signal
processing, control logic and memory necessary to provide for the overlay of
a small picture from a second non synchronized source onto the main picture
of a television. All control and setup of the MC44462 is via a standard two pin
I2C bus interface. The device is fabricated using BICMOS technology. It is
available in a 56–pin shrink dip (SDIP) package.
The main features of the MC44462 are:
• Switchable PIP Composite Video Signals – Video 1 and Video 2
• S–Video Output Allows High Performance in TV
• Two PIP Sizes; 1/16 and 1/9 Screen Area
• Freeze Field Feature
• Variable PIP Position in 64–X by 64–Y Steps
• PIP Border with Programmable Color
• Programmable PIP Tint and Saturation Control
• Automatic Main to PIP Contrast Balance
• Vertical Filter
• Integrated 64 k Bit DRAM Memory Resulting in Minimal RFI
• Minimal RFI Allows Simple Low Cost Application into TV
• I2C Bus Control – No External Variable Adjustments Needed
• Operates from a Single 5.0 V Supply
• Economical 56–Pin Shrink DIP Package
MC44462
Y–C PICTURE–IN–PICTURE
(PIP) CONTROLLER
SEMICONDUCTOR
TECHNICAL DATA
56
1
B SUFFIX
PLASTIC PACKAGE
CASE 859
(SDIP)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC44462B TJ = –65° to +150°C
SDIP
YC–PIP System Diagram
CV
Tuner/IF
Back Panel
S–VHS Inputs
Cable
Y
C
Back Panel _CV
Composite
Video Input
S
Comb
Y
W
Filter
C
IIC
CV
Main ^(unused)
(MC141625)
M
T
R
Ymain _in
X
Cmain _in
YC PIP
MC44462
Ymain _out
Cmain _out
Video
Processor
Yin
Cin
R
G
B
CV1
CV2
IIC
This document contains information on a product under development. Motorola reserves the
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© Motorola, Inc. 1996
Issue 2
1