Order this document by MC1378/D
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
•
•
•
•
•
•
COLOR TELEVISION
COMPOSITE VIDEO OVERLAY
SYNCHRONIZER
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 711
Can Be Operated in PAL or NTSC Mode, 625 or 525 Line
40
Wideband, Full–Fidelity Color Encoding
1
Local or Remote Modes of Operation
FN SUFFIX
PLASTIC PACKAGE
CASE 777
(PLCC–44)
Minimal External Components
1
Designed to Operate from 5.0 V supply
Will Work with non standard Video
PIN CONNECTIONS
Local/Rem.
1 (1)
(44) 40
H. Sync In
H. PLL Filter
2 (2)
(43) 39
Comp. Sync Out
{
3 (3)
(42) 38
V. Out/Sync In
4 (4)
(41) 37
Clock PLL Filter
H. VCO
Burst Gate Out
5 (5)
(40) 36
Clock VCC
PAL/NTSC Mode
6 (7)
(38) 35
Clock Output
Ground
7 (8)
(37) 34
Clock Ground
3.58/4.43 In
8 (9)
(36) 33
9 (10)
(35) 32
}Clock VCO
Chroma PLL Filter
Figure 1. Simplified Application
{
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
Chroma VCO
36MHz Master Clock
H Sync
3.58/4.43MHz
Remote
Video
Vert/Comp Sync
Video
System
Red
MC1378
Green
Composite
Overplayed
Video
Blue
Video Enable
R Input
14 (15) (30) 27
VCC
Comp. Vid. Out
G Input
15 (16) (29) 26
Ground
B Input
16 (18) (27) 25
Overlay Enable
–Y Output
17 (19) (26) 24
Rem. Vid. In
Chroma Out
ACC Filter
Loc. Vid. Clamp
18 (20) (25) 23
19 (21) (24) 22
Chroma In
20 (22) (23) 21
Rem. Vid. Clamp
–Y Input
* ( ) PLCC Pin Assignments
Local/Remote
ORDERING INFORMATION
Device
525/60
625/50
PAL/
NTSC
MC1378P
MC1378FN
Operating
Temperature Range
TA = 0° to +70°C
Motorola, Inc. 1996
MOTOROLA ANALOG IC DEVICE DATA
Package
Plastic DIP
PLCC–44
Rev 0
1
MC1378
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
VCC
6.0
Vdc
TA
0 to +70
°C
Storage Temperature
Tstg
–65 to +150
°C
Junction Temperature
TJ(max)
150
°C
PD
1.25
10
W
mW/°C
Supply Voltage
Operating Temperature
Power Dissipation, Package
Derate above 25°C
RECOMMENDED OPERATING CONDITIONS
Condition
Pin
Value
Unit
28, 36
5.4 ± 0.25
Vdc
14, 15, 16
1.0
Vpp
Color Oscillator Input Level
8
0.5
Vpp
Video Input, Positive
24
1.0
Vpp
Supply Voltage
RGB Input for 100% Saturation
ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, TA = 25°C, circuit of Figure 4 or 5)
Characteristics
Supply Current
Pin
Min
Typ
Max
Unit
28, 36
–
100
–
mAdc
Video Output, Open Circuit, Positive
27
–
2.0
9.4
Vpp
Modulation Angle (R – Y) to (B – Y)
–
87
90
93
Degrees
14, 15, 16
–
10
–
kΩ
RGB Input Impedance
Local/Remote Switch (TTL)
High
Low
1
–
Remote
Local
–
–
Horizontal Sync Input, Negative Going
(TTL)
40
–
4.3
–
Vpp
Vertical Sync Output, Negative Going,
Remote Mode
38
–
4.3
–
Vpp
(TTL)
Composite Sync Output, Negative Going
(TTL)
39
–
4.3
–
Vpp
Burst Gate Output, Positive Going
(TTL)
5
–
4.3
–
Vpp
Description of Operation – Refer to Figures 3, 4
Remote Mode
Local Mode
The incoming remote video signal (Pin 24) supplies all
synchronizing information. A discussion of the function of the
phase detectors helps to clarify the lockup method:
The MC1378 and a video system combine to provide a fully
synchronized standard signal source. In this case, composite sync
must be supplied by the video system or other time base system.
In the MC1378 the phase detectors operate as follows:
PD1 locks the internally counted–down 4 MHz horizontal VCO
to the incoming horizontal sync. It is fast acting, to follow
VCR source fluctuations.
PD1 locks the internally counted–down 4 MHz horizontal VCO
to a Horizontal Sync signal (at Pin 40) from the video
system (counted down from 36 MHz)
PD2 locks the 36 MHz clock VCO, which is divided down by
the video system, to the divided down horizontal VCO.
PD2 not used in LOCAL MODE.
PD3 not used in LOCAL MODE.
PD3 is a gated phase detector which locks the 14 MHz crystal
oscillator, divided by 4, to the incoming color burst.
PD4 active, but providing an arbitrary phase shift setting
between the color oscillator and the output burst phase.
PD4 controls an internal phase shifter to assure that the
outgoing color burst is the same phase as incoming burst
at PD3.
PD5 not used in REMOTE MODE
PD5 locks the 36 MHz clock VCO (which is divided down by
the video system) to the 14 MHz (crystal) color oscillator.
The 14 MHz is, therefore, the system standard in LOCAL
MODE, and is not DC controlled.
Vertical lock is obtained by continuously resetting the sync
generator in the video system with separated vertical sync from the
MC1378, Pin 38. This signal is TTL level vertical block sync,
negative going. The horizontal sync from the video system to Pin 40
is also TTL level with sync negative going. The local/remote switch,
Pin 1, is in local mode when grounded, remote mode when taken
to 5.0 V. The overlay control, Pin 25, has an analog characteristic,
centered about 1.0 V, which allows fading from local to remote.
COMPOSITE VIDEO GENERATION
The color encoding at the RGB signals is done exactly as in
the MC1377. Composite chroma is looped out at Pins 18 and 20
to allow the designer to choose band shaping. Luminance is
similarly brought out (Pins 17 and 22) to permit installation of
the appropriate delay.
Composite sync output, Pin 39, and burst gate output, Pin 5,
are provided for convenience only.
2
MOTOROLA ANALOG IC DEVICE DATA
MOTOROLA ANALOG IC DEVICE DATA
RGB
In
16
15
14
13
12
6
10
11
9
32
33
34
36
Color
Diff
and
Luma
Matrix
PAL/NTSC
Cont
4XSC
VCO
Clock
VCO
35
Clock
Out
PD5
8
–Y
In
–Y
Out
Chroma In
20
BR
Burst
Flag
Decoder
ACC
AMP
R–Y
Clamp
Mod
Mod
B–Y
Clamp
R–Y
B–Y
Divide by 4 Ring Counter
22
L
R
L
R
17
R–Y
B–Y
37
35.8/4.43
MHz In
VRef
Chroma
Out
R
L
90–270
Phase
Shift
0 – 180
Phase
Shift
30
18
23
H/2
BG
Burst
Flag
Decoder
PAL
F/F
19
Local
Video
Clamp
ACC
PD4
DET
5
Burst Gate Out
Det
Ident
Det
Kill
PD3
Overlay
Enable
25
Video
Out
27
Fast
Video
Switch
V CC
31
29
BG
Divide by 256 Counter
L Clamp Video
H
BG
Ident
Proc
Kill
Proc
PD1
Remote
Video
Clamp
Remote
Video In
24
L
21
R
R
L
PD2
HORIZ
VCO
Comp
Sync Sep
Vert
Sync Sep
R
L
Gnd
7/26
Loc/Rem
Switches
28
+5.0 V
38
1
39
40
2
3
4
Vert. Out
Comp. Sync In
Local/Remote
Comp
Sync Out
H Sync In
Figure 2.
PAL/
NTSC
14.32/
17.73
MHz
35.8/
35.5
MHz
Clock
Gnd
+5.0 V
Clock
V CC
Figure 2. Representative Block Diagram
4 MHz
Cer
Res
MC1378
3
MC1378
Figure 3. Remote Mode
Overlay Enable
÷ 2275
÷ 2270
36MHz
Clock
0.033
Comp
Sync
Out
0.001 0.3
1.0µF
+
H Sync
µH
0.001
47k
0.1
10µF
0.0047
V. Sync
Remote
Video
In
+ 5 Video
VCC Out
Master Clock 35.8/35.5MHz
0.1
+
+
10
µF
470k
+
+
1.0µF
1.0µF
75
47
0.047
0.1
36pF
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1.2k
Local
Video
Source
TDK
SDL–4301
1.2k
1
2
3
4
1.0
6
7
8
4
MHz
Cer PAL NTSC 0.001
Res
680
Local/ 1.8k
Remote
0.022
+
(High)
5
9
10
2.2
k
14.32/
+ 17.73 MHz
0.1
20pF
0.01
15 Burst
11
12
13
14
15
1 7
18
19
20
100/62
0.001
220
0.1
+
+
+
10
µF
10
µF
1.0 µF
Gate
Out
16
10µF
TOKO
166NNF
10264AG
R
+
3.3k
1.0
µF
G
47/33
B
Figure 4. Local Mode
Overlay Enable
+ 5 Video
VCC Out
Master Clock 35.8/35.5MHz
÷ 2275
Comp
Sync
Out
÷ 2270
H Sync
µH
0.001
47k
0.1
0.001 0.3
1.0µF
+
0.0047
36MHz
Clock
Composite Sync 0.033
0.1
+
+
+
1.0µF
1.0µF
470k
75
47
0.047
0.1
36pF
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1.2k
÷ 10
÷8
1.2k
1
Local
Video
Source
TDK
SDL–4301
2
3
4
680
Local/ 1.8k
Remote
0.022
+
(High)
1.0
5
7
4
MHz
Cer PAL NTSC 0.001
Res
15 Burst
Gate
Out
R
6
8
9
10
2.2
k
14.32/
+ 17.73MHz
0.1
20pF
0.01
11
12
13
14
15
16
1 7
18
19
20
100/62
0.001
220
0.1
+
+
10
µF
10
µF
+
10µF
TOKO
166NNF
10264AG
+
1.0
µF
3.3k
47/33
G
B
4
MOTOROLA ANALOG IC DEVICE DATA
MC1378
OUTLINE DIMENSIONS
P SUFFIX
PLASTIC PACKAGE
CASE 711–03
ISSUE C
40
NOTES:
1. POSITIONAL TOLERANCE OF LEADS (D), SHALL
BE WITHIN 0.25 (0.010) AT MAXIMUM MATERIAL
CONDITION, IN RELATION TO SEATING PLANE
AND EACH OTHER.
2. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
3. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
21
B
1
DIM
A
B
C
D
F
G
H
J
K
L
M
N
20
L
A
C
N
J
H
G
F
K
D
–N–
Y
BRK
M
SEATING
PLANE
FN SUFFIX
PLASTIC PACKAGE
CASE 777–02
(PLCC–44)
ISSUE C
D
MILLIMETERS
MIN
MAX
51.69
52.45
13.72
14.22
3.94
5.08
0.36
0.56
1.02
1.52
2.54 BSC
1.65
2.16
0.20
0.38
2.92
3.43
15.24 BSC
0_
15_
0.51
1.02
0.007(0.180) M T
B
L–M
INCHES
MIN
MAX
2.035
2.065
0.540
0.560
0.155
0.200
0.014
0.022
0.040
0.060
0.100 BSC
0.065
0.085
0.008
0.015
0.115
0.135
0.600 BSC
0_
15_
0.020
0.040
0.007(0.180) M T
U
N
S
L–M
S
S
N
S
Z
–M–
–L–
V
44
W
1
X
D
G1
0.010 (0.25)
VIEW D–D
A
0.007(0.180) M T
L–M
S
N
S
R
0.007(0.180) M T
L–M
S
N
S
S
T
0.007(0.180) M T
H
L–M
S
L–M
S
N
S
N
N
S
S
Z
J
C
K1
E
0.004 (0.10)
–T– SEATING
G
G1
0.010 (0.25)
S
K
PLANE
T
L–M
S
N
S
F
VIEW S
0.007(0.180) M T
L–M
S
VIEW S
NOTES:
1. DATUMS –L–, –M–, AND –N– ARE DETERMINED
WHERE TOP OF LEAD SHOULDER EXITS PLASTIC
BODY AT MOLD PARTING LINE.
2. DIMENSION G1, TRUE POSITION TO BE MEASURED
AT DATUM –T–, SEATING PLANE.
3. DIMENSIONS R AND U DO NOT INCLUDE MOLD
FLASH. ALLOWABLE MOLD FLASH IS 0.010 (0.25) PER
SIDE.
4. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
5. CONTROLLING DIMENSION: INCH.
6. THE PACKAGE TOP MAY BE SMALLER THAN THE
PACKAGE BOTTOM BY UP TO 0.012 (0.300).
DIMENSIONS R AND U ARE DETERMINED AT THE
OUTERMOST EXTREMES OF THE PLASTIC BODY
EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS, GATE
BURRS AND INTERLEAD FLASH, BUT INCLUDING
ANY MISMATCH BETWEEN THE TOP AND BOTTOM
OF THE PLASTIC BODY.
7. DIMENSION H DOES NOT INCLUDE DAMBAR
PROTRUSION OR INTRUSION. THE DAMBAR
PROTRUSION(S) SHALL NOT CAUSE THE H
DIMENSION TO BE GREATER THAN 0.037 (0.940).
THE DAMBAR INTRUSION(S) SHALL NOT CAUSE THE
H DIMENSION TO BE SMALLER THAN 0.025 (0.635).
MOTOROLA ANALOG IC DEVICE DATA
DIM
A
B
C
E
F
G
H
J
K
R
U
V
W
X
Y
Z
G1
K1
INCHES
MIN
MAX
0.685
0.695
0.685
0.695
0.165
0.180
0.090
0.110
0.013
0.019
0.050 BSC
0.026
0.032
0.020
–––
0.025
–––
0.650
0.656
0.650
0.656
0.042
0.048
0.042
0.048
0.042
0.056
–––
0.020
2_
10 _
0.610
0.630
0.040
–––
MILLIMETERS
MIN
MAX
17.40
17.65
17.40
17.65
4.20
4.57
2.29
2.79
0.33
0.48
1.27 BSC
0.66
0.81
0.51
–––
0.64
–––
16.51
16.66
16.51
16.66
1.07
1.21
1.07
1.21
1.07
1.42
–––
0.50
2_
10_
15.50
16.00
1.02
–––
5
MC1378
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
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Opportunity/Affirmative Action Employer.
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6
◊
*MC1378/D*
MOTOROLA ANALOG IC DEVICE
DATA
MC1378/D