MC1378 Datasheet, PDF (1/6 Pages) Motorola, Inc – COLOR TELEVISION COMPOSITE VIDEO OVERLAY SYNCHRONIZER

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MC1378
Color Television Composite
Video Overlay Synchronizer
The MC1378 is a bipolar composite video overlay encoder and
microcomputer synchronizer. The MC1378 contains the complete encoder
function of the MC1377, i.e., quadrature color modulators, RGB matrix, and
blanking level clamps, plus a complete complement of synchronizers to lock
a microcomputer–based video source to any remote video source. The
MC1378 can be used as a local system timing and encoding source, but it is
most valuable when used to lock the microcomputer source to a remotely
originated video signal.
• Contains All Needed Reference Oscillators
• Can Be Operated in PAL or NTSC Mode, 625 or 525 Line
• Wideband, Full–Fidelity Color Encoding
• Local or Remote Modes of Operation
• Minimal External Components
• Designed to Operate from 5.0 V supply
• Will Work with non standard Video
Figure 1. Simplified Application
Video
System
36MHz Master Clock
H Sync
3.58/4.43MHz
Vert/Comp Sync
Red
Green
Blue
Video Enable
Local/Remote
MC1378
Remote
Video
Composite
Overplayed
Video
525/60
625/50
PAL/
NTSC
COLOR TELEVISION
COMPOSITE VIDEO OVERLAY
SYNCHRONIZER
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 711
40
1
FN SUFFIX
PLASTIC PACKAGE
CASE 777
1
(PLCC–44)
PIN CONNECTIONS
Local/Rem. 1 (1) (44) 40 H. Sync In
H. PLL Filter 2 (2) (43) 39 Comp. Sync Out
3 (3)
{ H. VCO
4 (4)
(42) 38 V. Out/Sync In
(41) 37 Clock PLL Filter
Burst Gate Out 5 (5)
PAL/NTSC Mode 6 (7)
(40) 36 Clock VCC
(38) 35 Clock Output
Ground 7 (8) (37) 34 Clock Ground
} ^{3.58/4.43 In 8 (9) (36) 33}
Chroma PLL Filter 9 (10) (35) 32
Clock VCO
{ ^{Chroma VCO}
10 (11) _{(34) 31 Killer Filter}
11 (12) (33) 30 Quad. Loop Filter
R–Y Clamp 12 (13) (32) 29 PAL Indent. Cap
B–Y Clamp 13 (14) (31) 28 VCC
R Input 14 (15) (30) 27 Comp. Vid. Out
G Input 15 (16) (29) 26 Ground
B Input 16 (18) (27) 25 Overlay Enable
–Y Output
Chroma Out
Loc. Vid. Clamp
Chroma In
17 (19) _{(26) 24}
18 (20) _{(25) 23}
19 (21) _{(24) 22}
20 (22) (23) 21
Rem. Vid. In
ACC Filter
–Y Input
Rem. Vid. Clamp
* ( ) PLCC Pin Assignments
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC1378P
MC1378FN
TA = 0° to +70°C
Plastic DIP
PLCC–44
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 0
1