Harris CA3154E Tv sync/agc/horizontal signal processor Datasheet

CA3154
May 1999
[ /Title
(CA31
54)
/Subject
(TV
Sync/A
GC/Ho
rizontal Signal
Processor)
/Autho
r ()
/Keywords
(Harris
Semiconductor,
TV
sync
processor,
horizontal
oscillator,
horizontal
processor,
sync
separator,
AFC
circuit,
AGC
cir-
T
UCT
ROD ACEMEN 47
P
E
7
T
L
OLE
REP 00-442-7
OBS ENDED
8
M
ns 1
.com
COM pplicatio @harris
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NO ntral A entapp
TV Sync/AGC/Horizontal
Ce
: c
Call or email
Signal Processor
Features
Description
• Horizontal Oscillator with AFC
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.
• 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
Part Number Information
PART NUMBER
CA3154E
TEMP.
RANGE (oC)
-40 to 85
PACKAGE
16 Ld PDIP
PKG.
NO.
E16.3
Pinout
CA3154
(PDIP)
TOP VIEW
16 HORIZ PULSE INPUT
VIDEO INPUT 1
15 AGC FILTER
SYNC SEP 2
14 IF GAIN CLAMP
COMP SYNC INPUT 3
13 IF AGC
HORIZ SAWTOOTH INPUT 4
GND 5
12 TUNER REV. AGC
OSC PHASE INPUT 6
11 TUNER FWD AGC
10 HORIZ AFC FILTER
OSC QUAD INPUT 7
9 SUPPLY VOLTAGE
OSC OUTPUT 8
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© Harris Corporation 1999
8-42
File Number
1183.2
CA3154
Absolute Maximum Ratings
Thermal Information
DC Supply Voltage (V+ to V-) . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Thermal Resistance (Typical, Note 1)
θJA (oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
80
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
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. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
PARAMETER
Terminal 5 to GND, and Terminal 9 to +12V, Unless Otherwise Specified
TEST CONDITIONS
SYMBOL (TERMINALS CONNECTED AS SHOWN BELOW)
TEMP
(oC)
MIN
TYP
MAX
UNITS
Power Supply Current
I9
Measure (9)
25
10
-
22
mA
Video Inverter Voltage
V2
(1) to +4V, (2) 12kΩ to GND, (3) 27kΩ to GND,
Measure (2)
25
5.2
-
6.4
V
Sync Separator High Output
Voltage
V3H
(1) to +4V, (2) 12kΩ to GND, (3) 27kΩ to GND,
Measure (2)
25
10.7
-
-
V
Sync Separator Low Output
Voltage
V3L
(1) to +4V, (3) 27kΩ to GND, Measure (3)
25
-
-
1.3
V
Video Noise Clamp Voltage
V3 Clamp (1) to +3.1V, (3) 27kΩ to GND, Measure (3)
25
10.7
-
-
V
AGC Discharge Current
I15
(1) to +4.4V, (2) 10kΩ to GND, (15) 470Ω to
Discharge +6V, (16) 27kΩ to 12V, Measure (15)
25
0.6
-
1.4
mA
AGC Charge Current
I15
Charge
(1) to +3.45V, Otherwise, Same as Above
25
-2.1
-
-4.8
mA
AGC Comparator Leakage
I15
Leakage
(1) to +3.45V, (2) 10kΩ to GND, (15) 4.7kΩ to
+6V, Measure (15)
25
-20
-
20
µA
AGC Threshold Voltage
V1TH
Adj. (1) for I15 = 0 ±0.1mA, (2) 10kΩ to GND, (15)
4.7kΩ to +6V, (16) 27kΩ to +12V, Measure (1)
25
3.8
4
4.3
V
Minimum IF AGC
V13L
(11) 10kΩ to GND, (12) 10kΩ to +12V, (13)
22kΩ to +5V, (14) 1kΩ to +2.95V, (16) 1kΩ to
+2.2V, Measure (13)
25
0.75
-
1.25
V
Forward Tuner AGC Leakage
Current
I11
Leakage
(11) 10kΩ to GND, (12) 10kΩ to 12V, (13) 2.2kΩ
to +5V, (14) 1kΩ to +2.95V, (15) 1kΩ to +5.3V,
Measure (11)
25
-20
-
20
µA
Reverse Tuner AGC Leakage
I12
Leakage
Same as Above, but Measure (12)
25
-10
-
10
µA
IF AGC High Voltage
V13H
Same as Above, but Measure (13)
25
3.65
-
4.15
V
Forward Tuner AGC Low
Voltage
V11L
(11) 3.6kΩ to GND, (12) 3.16kΩ to +12V, (13)
2.2kΩ to +5V, (14) 1kΩ to +2.95V, (15) 1kΩ to
+7.9V, Measure (11)
25
0.8
-
3.2
V
Reverse Tuner AGC Low
Voltage
V12L
Same as Above, but Measure (12)
25
1.65
-
3.25
V
Maximum IF AGC Voltage
V13H
(11) 10kΩ to GND, (12) 10kΩ to +12V, (13)
2.2kΩ to +5V, (14) 1kΩ to +2.95V, (15) 1kΩ to
+7.9V, Measure (13)
25
4.85
-
5.2
V
Phase Detector Leakage
Current
I10L
(2) 10kΩ to GND, (3) to GND, (4) 5kΩ to +3.8V,
(10) 10kΩ to +6V, Limit GND at (3) to 10s,
Measure 10
25
-5
-
5
µA
8-43
CA3154
Electrical Specifications
Terminal 5 to GND, and Terminal 9 to +12V, Unless Otherwise Specified (Continued)
TEST CONDITIONS
SYMBOL (TERMINALS CONNECTED AS SHOWN BELOW)
PARAMETER
TEMP
(oC)
MIN
TYP
MAX
UNITS
25
2.65
-
3.1
V
Connect Oscillator Loop Shown in Test Circuit to
(6), (7), (8); (3) to GND for 10s Max, Measure (6)
25
0.6
-
1.6
VP-P
Phase Detector Bias Voltage
V4
Oscillator Output Voltage
V6
Oscillator Free-Running
Frequency
f6FR
Same as Above
25
475
-
535
kHz
Oscillator Frequency High
f6H
Connect Oscillator Circuit Shown in Test Circuit to
(10), (7), (8); (2) 10kΩ to GND, (4) 5kΩ to +18V,
Measure (6)
25
520
-
-
kHz
Oscillator Frequency Low
f6L
Same as Above, Except (4) 5kΩ to +3.8V
25
-
-
485
kHz
Sync Separator Short Circuit
I3 Max
(3) 10Ω to GND for 10s Max
25
-
-
40
mA
Oscillator Output Short Circuit
I8 Max
(8) 10Ω to GND for 10s Max
(3) 10Ω to GND for 10s Max
25
-
-
130
mA
IF GAIN
CLAMP
IF AGC
AGC
DELAY
AGC
DISCHARGE
FILTER CAP
HORIZ
GATING
PULSE
INPUT
15
16
+12V
TUNER POWER
FWD AGC SUPPLY
TUNER
REV AGC
KEYED
AGC
GATE
14
13
IF AGC
AMP
11
12
TUNER
REV AGC
AMP
9
+12V
TUNER
FWD AGC
AMP
OSC
OUT
HORZ
OSC
7V
1
BUFFER
AMP
SYNC
AMP
SYNC
SEPARATOR
4V
AFC
503.5
kHz
(32H)
VIDEO
INPUT
8
QUAD FB IN
7
6
OSC FB
PHASE
SHIFT IN
5 GND
2
3 COMPOSITE 4
SYNC
SEPARATOR
SYNC
OUTPUT
10 AFC
HORIZ
SAWTOOTH
FILTER
PULSE
HORIZONTAL
INPUT
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM OF CA3154
8-44
32 X HORIZ
FREQ
HORIZ
OUTPUT
CA3154
TO
6
TO
7
TO
2mH
Q ≈ 10
470Ω
620pF
±2%
8
1kΩ
56pF
±2%
330pF
±2%
1.8kΩ
NOTE: Oscillator loop to be used as indicated in the electrical characteristics chart, with coil adjusted for typical unit to 503.5kHz for f6FR.
FIGURE 2. ELECTRICAL CHARACTERISTICS TEST CIRCUIT
V15
+12V
V13 POT. DELAY
SETTING
V14
V13
B
A
V11(TUNER FWD AGC)
V12(TUNER REVERSE AGC)
V13(MIN) = V14 -2.1V
V14IF(MAX)GAIN BIAS
V15(MIN) = V14 -0.7V
VDELAY
VO
IF AGC
IF MAX GAIN AT IF GAIN RED.
TUNER GAIN
LOW SIGNAL
RANGE
REDUCTION RANGE
LEVEL
RF INPUT SIGNAL
FIGURE 3. TYPICAL OPERATION OF AGC CIRCUITS USING THE CA3154
9 12V
R4
9.5K
R38
15K
R6
500
R10
7.5K
R83
500
R40
16.6K
R46
4.24K
Q37
R44
2.5K
10.7V
4.5V
R43
5K
Q38
Q3
7V
R9
580
4V
R5
22K
VIDEO
INPUT
Q4
1
Q40
R8
520
Q44
R7
3.4K
R1
R.6K
R54
13.5K
Q43
R41
15K
SYNC
TO AGC
REF BIAS TO
AGC (4V)
R48
1.7K
R49
200
SYNC
OUTPUT 3
2
FIGURE 4. SCHEMATIC OF SYNC SEPARATOR SECTION OF THE CA3154
8-45
SYNC
TO HOR
AFC
R52
33
Q42
R3
390
SYNC
SEP.
R42
15K
Q46
Q36
R39
1K
Q1
VIDEO
TO AGC
R47
15K
Q35
Q2
R2
390
Q45
Q41
3.4V
Q6
R51
27K
R50
7.9K
Q39
R45
7.18K
Q33
R53
4.17K
5
CA3154
VIDEO
FROM VIDEO
BUFFER AMP
REF
BIAS
(4V)
R13
400
SYNC
FROM
SYNC SEP
DELAY
SET
R24
500
R14
100
12 TUNER
REV AGC
13 IF
AGC
R34
950
R26
15K
R25
500
Q6
R35
425
Q30
Q10
Q8
Q31
Q11
R37
5K
Q23
Q16
R11
100
R12
100
Q17
Q19
Q18
Q13
HORIZ
PULSE
IN
16
Q32
Q24
R16
5K
Q7
Q5
Q20
R19
500
Q27
Q26
R20
500
Q25
R18
1.5K
R17
6.8K
R31
2.5K
R29
400
Q21
Q12
Q15
R22
15K
R85
800
Q22
Q29
Q28
R33
200
R32
575
R28
400
14 IF GAIN
CLAMP
15
TUNER
11 FWD
AGC
R30
6.7K
R27
6.2K
Q19
R21
1K
9 +12V
5
FIGURE 5. SCHEMATIC OF AGC SECTION OF THE CAA3154
HORIZ
AFC FILTER
10
9 +12V
R81
R63
2.2K
R61
2.22K
R78
3K
Q74
R62
10K
Q55
Q68
R76
11K
Q59
Q66
Q69
Q71
Q67
R68
2.3K
Q57
Q51
R57
10K
R59
10K
R60
8.2K
Q58
R65
1.9K
R69
10K
2.8V
R75
33K
Q62
QUAD
OSC
7
Q65
Q63
Q64
R74
4.7K
R73
4.7K
PHASE
SYNC OSC
INPUT
6
1.4mA
SYNC FROM
SYNC SEP
≅ 0.5mA Q47
R55
200
Q48
Q56
R56
200
R66
4.7K
R64
100
Q61
Q60
R67
4.7K
R71
100
R71
100
R79
3.3K
5
FIGURE 6. SCHEMATIC OF AFC-OSCILLATOR SECTION OF THE CA3154
8-46
8
OSC
OUTPUT
R80
9.9K
6.1V
Q49
R58
8.2K
R70
3.7K
Q52
Q50
4
R82
14
100K
Q53
HORIZ.
SAWTOOTH
INPUT
Q70
R77
Q54
Q72
Q73
3.3K
CA3154
AGC
IF
TUNER
REV
4.7µF
TUNER
FWD
4.3V
220Ω
1.2kΩ
330Ω
16.5kΩ
1kΩ
1.0µF
33pF
0.0068µF
DELAY
7V
3.9kΩ
2.2µF
4.5kΩ
500Ω
2.7kΩ
4V
VIDEO
INPUT
2.2kΩ
2.7kΩ
150pF
0.22µF
16
15
14
13
12
11
10
9
0.1µF
HORIZ.
P.B. PULSE
(+60V)
INPUT
33kΩ
CA3154
1
10kΩ
2
3
4
5
6
7
8
680Ω
0.1µF
1.2kΩ
470Ω
39pF
1µF
1.2kΩ
Q ≅ 10
2.4mH
470Ω
18Ω
620pF
1.2kΩ
470pF
0.033µF
180kΩ
27µH
220kΩ
0.0047µF
SYNC SEPARATOR
OUTPUT-POSITIVE
SYNC TIPS
32 X HORIZ.
FREQ.
(503.5kHz)
OSC. OUTPUT
FIGURE 7. TYPICAL APPLICATION OF THE CA3154
8-47
+12V
POWER
SUPPLY
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