8-42
May 1999
CA3154
TV Sync/AGC/Horizontal Signal Processor
Features
Horizontal Oscillator with AFC
Sync Separator with Noise Immunity
Strobed AGC System
lF AGC Output
Delayed Outputs for Forward or Reverse AGC Tuners
Internal Noise Threshold
High-Impedance Video Input
Choice of Dual External Time Constants for Sync
Separator Noise Immunity
RF AGC Delay Externally Controlled
Output Short-Circuit Protection
Description
The CA3154 is a monolithic integrated circuit TV signal
processor designed for use in color or monochrome
receivers. Circuit functions include a horizontal oscillator with
AFC, a sync separator, and a keyed AGC system. The AGC
system provides output signals for IF (reverse) and tuner
(forward and/or reverse). The wide frequency-range
horizontal oscillator has high stability at 503.5kHz. When the
CA3154 is used in conjunction with horizontal/vertical
countdown circuits, the need for horizontal and vertical hold
controls is eliminated.
Pinout
CA3154
(PDIP)
TOP VIEW
Part Number Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
CA3154E
-40 to 85
16 Ld PDIP
E16.3
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
VIDEO INPUT
SYNC SEP
COMP SYNC INPUT
HORIZ SAWTOOTH INPUT
GND
OSC PHASE INPUT
OSC OUTPUT
OSC QUAD INPUT
HORIZ PULSE INPUT
IF GAIN CLAMP
IF AGC
TUNER REV. AGC
TUNER FWD AGC
HORIZ AFC FILTER
SUPPLY VOLTAGE
AGC FILTER
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Harris Corporation 1999
File Number
1183.2
[ /Title
(CA31
54)
/Sub-
ject
(TV
Sync/A
GC/Ho
rizon-
tal Sig-
nal
Proces-
sor)
/Autho
r ()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
TV
sync
proces-
sor,
hori-
zontal
oscilla-
tor,
hori-
zontal
proces-
sor,
sync
separa-
tor,
AFC
cir-
cuit,
AGC
cir-
OBSOLETE PR
ODUCT
NO RECOMMENDED REPLA
CEMENT
Call Central Applications 1-800-442-7747
or email: centapp@harris.com
8-43
Absolute Maximum Ratings
Thermal Information
DC Supply Voltage (V+ to V-) . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to 85
o
C
Thermal Resistance (Typical, Note 1)
JA
(
o
C/W)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
80
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150
o
C
Maximum Storage Temperature Range . . . . . . . . . .-65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300
o
C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
JA
is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
Terminal 5 to GND, and Terminal 9 to +12V, Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
(TERMINALS CONNECTED AS SHOWN BELOW)
TEMP
(
o
C)
MIN
TYP
MAX
UNITS
Power Supply Current
I
9
Measure (9)
25
10
-
22
mA
Video Inverter Voltage
V
2
(1) to +4V, (2) 12k
to GND, (3) 27k
to GND,
Measure (2)
25
5.2
-
6.4
V
Sync Separator High Output
Voltage
V
3H
(1) to +4V, (2) 12k
to GND, (3) 27k
to GND,
Measure (2)
25
10.7
-
-
V
Sync Separator Low Output
Voltage
V
3L
(1) to +4V, (3) 27k
to GND, Measure (3)
25
-
-
1.3
V
Video Noise Clamp Voltage
V
3
Clamp (1) to +3.1V, (3) 27k
to GND, Measure (3)
25
10.7
-
-
V
AGC Discharge Current
I
15
Discharge
(1) to +4.4V, (2) 10k
to GND, (15) 470
to
+6V, (16) 27k
to 12V, Measure (15)
25
0.6
-
1.4
mA
AGC Charge Current
I
15
Charge
(1) to +3.45V, Otherwise, Same as Above
25
-2.1
-
-4.8
mA
AGC Comparator Leakage
I
15
Leakage
(1) to +3.45V, (2) 10k
to GND, (15) 4.7k
to
+6V, Measure (15)
25
-20
-
20
A
AGC Threshold Voltage
V
1TH
Adj. (1) for I
15
= 0
0.1mA, (2) 10k
to GND, (15)
4.7k
to +6V, (16) 27k
to +12V, Measure (1)
25
3.8
4
4.3
V
Minimum IF AGC
V
13L
(11) 10k
to GND, (12) 10k
to +12V, (13)
22k
to +5V, (14) 1k
to +2.95V, (16) 1k
to
+2.2V, Measure (13)
25
0.75
-
1.25
V
Forward Tuner AGC Leakage
Current
I
11
Leakage
(11) 10k
to GND, (12) 10k
to 12V, (13) 2.2k
to +5V, (14) 1k
to +2.95V, (15) 1k
to +5.3V,
Measure (11)
25
-20
-
20
A
Reverse Tuner AGC Leakage
I
12
Leakage
Same as Above, but Measure (12)
25
-10
-
10
A
IF AGC High Voltage
V
13H
Same as Above, but Measure (13)
25
3.65
-
4.15
V
Forward Tuner AGC Low
Voltage
V
11L
(11) 3.6k
to GND, (12) 3.16k
to +12V, (13)
2.2k
to +5V, (14) 1k
to +2.95V, (15) 1k
to
+7.9V, Measure (11)
25
0.8
-
3.2
V
Reverse Tuner AGC Low
Voltage
V
12L
Same as Above, but Measure (12)
25
1.65
-
3.25
V
Maximum IF AGC Voltage
V
13H
(11) 10k
to GND, (12) 10k
to +12V, (13)
2.2k
to +5V, (14) 1k
to +2.95V, (15) 1k
to
+7.9V, Measure (13)
25
4.85
-
5.2
V
Phase Detector Leakage
Current
I
10L
(2) 10k
to GND, (3) to GND, (4) 5k
to +3.8V,
(10) 10k
to +6V, Limit GND at (3) to 10s,
Measure 10
25
-5
-
5
A
CA3154
8-44
Phase Detector Bias Voltage
V
4
25
2.65
-
3.1
V
Oscillator Output Voltage
V
6
Connect Oscillator Loop Shown in Test Circuit to
(6), (7), (8); (3) to GND for 10s Max, Measure (6)
25
0.6
-
1.6
V
P-P
Oscillator Free-Running
Frequency
f
6FR
Same as Above
25
475
-
535
kHz
Oscillator Frequency High
f
6H
Connect Oscillator Circuit Shown in Test Circuit to
(10), (7), (8); (2) 10k
to GND, (4) 5k
to +18V,
Measure (6)
25
520
-
-
kHz
Oscillator Frequency Low
f
6L
Same as Above, Except (4) 5k
to +3.8V
25
-
-
485
kHz
Sync Separator Short Circuit
I
3
Max
(3) 10
to GND for 10s Max
25
-
-
40
mA
Oscillator Output Short Circuit
I
8
Max
(8) 10
to GND for 10s Max
(3) 10
to GND for 10s Max
25
-
-
130
mA
Electrical Specifications
Terminal 5 to GND, and Terminal 9 to +12V, Unless Otherwise Specified (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
(TERMINALS CONNECTED AS SHOWN BELOW)
TEMP
(
o
C)
MIN
TYP
MAX
UNITS
KEYED
IF AGC
TUNER
TUNER
SYNC
HORZ
503.5
AFC
BUFFER
SYNC
AFC
FILTER
HORIZ
SAWTOOTH
COMPOSITE
SYNC
SYNC
SEPARATOR
GND
OUTPUT
AGC
GATE
AMP
REV AGC
AMP
AMP
SEPARATOR
AMP
OSC
kHz
(32H)
FWD AGC
AMP
HORIZ
GATING
PULSE
INPUT
VIDEO
INPUT
OSC FB
PHASE
SHIFT IN
QUAD FB IN
OSC
OUT
32 X HORIZ
FREQ
HORIZ
OUTPUT
+12V
+12V
POWER
SUPPLY
TUNER
FWD AGC
TUNER
REV AGC
AGC
DISCHARGE
FILTER CAP
IF GAIN
CLAMP
IF AGC
AGC
DELAY
7V
4V
1
16
5
2
3
15
14
13
12
11
9
8
7
6
10
4
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM OF CA3154
PULSE
HORIZONTAL
INPUT
CA3154
8-45
TO
TO
470
620pF
2%
56pF
2%
330pF
2%
1.8k
1k
2mH
Q
10
TO
6
7
8
NOTE: Oscillator loop to be used as indicated in the electrical characteristics chart, with coil adjusted for typical unit to 503.5kHz for f
6FR
.
FIGURE 2. ELECTRICAL CHARACTERISTICS TEST CIRCUIT
FIGURE 3. TYPICAL OPERATION OF AGC CIRCUITS USING THE CA3154
V
15
V
14
V
13
IF MAX GAIN AT
LOW SIGNAL
LEVEL
IF GAIN RED.
RANGE
TUNER GAIN
REDUCTION RANGE
V
11
(TUNER FWD AGC)
V
12
(TUNER REVERSE AGC)
V
13
(MIN) = V
14
-2.1V
V
14
IF(MAX)GAIN BIAS
V
15
(MIN) = V
14
-0.7V
V
DELAY
V
O
B
V
13
POT. DELAY
SETTING
RF INPUT SIGNAL
A
IF AGC
+12V
VIDEO
INPUT
4V
7V
VIDEO
TO AGC
R
2
390
R
3
390
REF BIAS TO
AGC (4V)
SYNC
SYNC
R
49
200
TO AGC
SYNC
SEP.
R
41
15K
R
39
1K
Q
36
Q
1
R
1
R.6K
Q
2
Q
4
OUTPUT
R
53
4.17K
Q
46
Q
43
Q
42
R
48
1.7K
R
47
15K
R
42
15K
Q
44
R
54
13.5K
R
52
33
SYNC
TO HOR
AFC
Q
45
R
51
27K
R
50
7.9K
R
43
5K
Q
3
Q
33
R
9
580
Q
37
Q
38
R
45
7.18K
Q
41
Q
40
R
8
520
R
5
22K
3.4V
R
7
3.4K
Q
35
10.7V
12V
Q
6
Q
39
4.5V
2
3
5
1
R
44
2.5K
R
46
4.24K
R
83
500
R
40
16.6K
R
10
7.5K
R
38
15K
R
6
500
R
4
9.5K
9
FIGURE 4. SCHEMATIC OF SYNC SEPARATOR SECTION OF THE CA3154
CA3154
8-46
9
12
14
15
IF GAIN
CLAMP
R
18
1.5K
Q
21
Q
20
Q
19
Q
18
Q
17
Q
16
Q
7
Q
19
Q
11
Q
8
Q
5
Q
6
Q
12
R
21
1K
R
22
15K
Q
15
VIDEO
FROM VIDEO
BUFFER AMP
R
13
R
11
100
R
12
100
R
16
5K
Q
13
R
19
500
R
20
500
R
14
100
Q
10
R
17
6.8K
REF
BIAS
(4V)
SYNC
FROM
SYNC SEP
R
24
500
R
26
15K
Q
23
Q
22
Q
24
DELAY
SET
R
34
950
R
35
425
Q
30
Q
31
Q
32
5K
TUNER
REV AGC
+12V
TUNER
R
30
6.7K
R
27
6.2K
Q
27
R
85
800
Q
26
R
31
2.5K
R
29
400
Q
29
Q
28
Q
25
IF
13
11
5
R
28
400
R
32
575
400
R
25
500
AGC
R
37
FWD
AGC
R
33
200
16
FIGURE 5. SCHEMATIC OF AGC SECTION OF THE CAA3154
HORIZ
PULSE
IN
Q
59
Q
58
Q
57
Q
65
Q
55
Q
54
Q
53
Q
52
Q
51
Q
50
Q
49
Q
48
Q
47
10
6
7
8
Q
72
Q
63
Q
62
Q
73
Q
71
Q
69
Q
68
Q
67
Q
66
R
63
2.2K
R
61
2.22K
+12V
R
77
100K
Q
74
R
62
10K
HORIZ.
SAWTOOTH
INPUT
R
58
8.2K
R
57
10K
SYNC FROM
SYNC SEP
0.5mA
4
R
55
200
R
56
200
R
59
10K
R
60
8.2K
R
66
4.7K
R
70
3.7K
R
68
2.3K
R
65
1.9K
1.4mA
Q
56
R
64
100
R
69
10K
2.8V
R
67
4.7K
R
78
3K
Q
70
R
76
11K
6.1V
R
75
33K
R
73
4.7K
Q
60
R
71
100
R
81
3.3K
R
71
100
R
79
3.3K
Q
61
Q
64
R
74
4.7K
PHASE
SYNC OSC
INPUT
QUAD
OSC
R
80
9.9K
OSC
OUTPUT
R
82
14
5
9
FIGURE 6. SCHEMATIC OF AFC-OSCILLATOR SECTION OF THE CA3154
HORIZ
AFC FILTER
CA3154
8-47
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
0.0047
F
0.0068
F
0.1
F
220k
1.2k
1
F
10k
2.2k
33k
VIDEO
INPUT
HORIZ.
P.B. PULSE
(+60V)
INPUT
32 X HORIZ.
FREQ.
(503.5kHz)
OSC. OUTPUT
POWER
SUPPLY
+12V
SYNC SEPARATOR
OUTPUT-POSITIVE
SYNC TIPS
470
0.033
F
18
620pF
470
180k
150pF
0.22
F
1.2k
27
H
39pF
2.4mH
470pF
680
1.2k
0.1
F
2.7k
Q
10
2.7k
3.9k
1.0
F
330
16.5k
1k
4.5k
500
1.2k
2.2
F
33pF
DELAY
4.3V
IF
TUNER
REV
TUNER
FWD
220
4.7
F
AGC
7V
4V
FIGURE 7. TYPICAL APPLICATION OF THE CA3154
14
CA3154
CA3154
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