CA1391 Datasheet PDF - Harris Corporation

www.Datasheet-PDF.com

CA1391
Harris Corporation

Part Number CA1391
Description (CA1391 / CA1394) TV Horizontal Processors
Page 4 Pages


CA1391 datasheet pdf
Download PDF
CA1391 pdf
View PDF for Mobile

No Preview Available !

CA1391, CA1394
May 1999
CNalOl CoRerEneCtOmrOaBalMSiAl:MOpELcpeENlincTDtaEaEtpiDPopRnR@OsEhD1Pa-UL8rrAC0is0CT.-Ec4oM4m2E-7N7T47
TV Horizontal Processors
[ /Title
(CA13
91,
CA139
4)
/Sub-
ject
(TV
Hori-
zontal
Proces-
sors)
/Autho
r ()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
TV
hori-
zontal
proces-
sor,
hori-
zontal
oscilla-
tor,
hori-
zontal
driver,
phase
detec-
tor,
AFC
cir-
cuit,
AGC
cir-
cuit,
Features
Description
• CA1391E - Positive Horizontal Sawtooth Input
• CA1394E - Negative Horizontal Sawtooth Input
• Internal Shunt Regulator
• Linear Balanced Phase Detector
• Preset Hold Control Capability
• Pull-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±300Hz (Typ)
• Low Thermal Frequency Drift
• Small Static Phase Error
• Variable Output Duty Cycle
The Harris CA1391E and CA1394E are monolithic
integrated circuits designed for use in the low-level
horizontal section of monochrome or color television
receivers. Functions include a phase detector, an oscillator,
a regulator, and a pre-driver.
The CA1391E and CA1394E are electrically equivalent and
pin compatible with industry types 1391 and 1394 in similar
packages.
Part Number Information
TEMP.
PART NUMBER RANGE (oC)
PACKAGE
CA1391E
0 to 85 8 Ld PDIP
PKG.
NO.
E8.3
• Adjustable DC Loop Gain
CA1394E
0 to 85 8 Ld PDIP
E8.3
Pinout
CA1391, CA1394
(PDIP)
TOP VIEW
OUT 1
GND 2
SYNC
IN
HORIZ
IN
3
4
MARK-
8
SPACE
RATIO
7
OSC
TIMING
6 V+
PHASE
5 DETECT
OUT
Functional Diagram
PHASE
DETECTOR
OUTPUT
5
V+
6
OSCILLATOR
TIMING
7
PHASE
DETECTOR
OUT
OSCILLATOR
REGULATOR
MARK-SPACE
RATIO
8
4
HORIZONTAL
SAWTOOTH
INPUT
PHASE
DETECTOR
PRE-
DRIVER
3
SYNC
INPUT
2
GROUND
1
OUTPUT
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1999
8-9
File Number 981.4



No Preview Available !

CA1391, CA1394
Absolute Maximum Ratings
DC Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA
DC Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
DC Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Sync Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5VP-P
Sawtooth Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5VP-P
Thermal Information
Thermal Resistance (Typical, Note 1)
θJA (oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
120
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC 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 (See Figure 1)
PARAMETER
TEST CONDITIONS
TEMP. (oC)
MIN
TYP
MAX
UNITS
Supply Voltage
S1, S5, S6 = 2; S2, S3, S4, S7, S8 = 1
Measure Terminal 6 to GND
25 8 - 9 V
Free Running
Frequency -1%
S1, S5, S6 = 2; S2, S3, S4, S7, S8 = 1
Counter to Terminal 1
25
14734
-
16734
Hz
Output Leakage
S2, S3, S6, S8 = 1; S1, S4, S5, S7 = 2
Measure Terminal 1 to 25V
25 - 10 - mV
Output Saturation
S2, S3, S5, S6, S8 = 1; S1, S4, S7 = 2
Measure Terminal 1 to GND
25 - 60 - mV
Phase Detector Bias
S2, S5, S6, S8 = 1; S1, S3, S4, S7 = 2
Measure Terminal 3 to GND
25
- 1.9 -
V
Phase Detector Leak
S5, S8 = 1; S1, S2, S3, S4, S6, S7 = 2
Measure Terminal 5 to +4V
25 -2 - 2 mV
Phase Detector Low
S1, S5, S8 = 1; S2, S3, S4, S6, S7 = 2
Measure Terminal 5 to +4V
25
-0.55
-
-
V
(Note 2)
Phase Detector High
S1, S5, S6, S8 = 1; S2, S3, S4, S7 = 2
Measure Terminal 5 to +4V
25
+0.55
-
-
V
(Note 2)
Phase Detector Balance VDET2 + VDET3
Sync Diode
S1, S2, S3, S4, S6, S7 = 1; S5, S8 = 2
Static Phase Error
See Figure 3
25 -100 - 100 mV
25 0.3 - 1.2 V
25 - 0.5 - µs
Oscillator Pull In Range
- ±300 -
Hz
Oscillator Hold In Range
- ±900 -
Hz
NOTE:
2. Polarity reversed in the CA1391.
8-10



No Preview Available !

Test Circuit
+25V
620
1W
21
S5
1.5k
8
1
2.65k
CA1391, CA1394
1k
14k
150k
1µF
6800pF
12
S3
430
12
S7
1.65k
12
S4
76
CA1391/CA1394
23
5
4
S8 S1
12
5.6k
12
+6V
FIGURE 1. DC TEST CIRCUIT
1
S2
2
21
S6
+6V
200
150
100
150
Schematic Diagram
PRE-
DRIVER
R1
2.6K
MARK-
SPACE
RATIO
8
Q4
OUT
1
Q1
Q3
R3
7.5K
Q2
R2
6.8K
OSC.
TIMING
7
OSCILLATOR
R8
3.9K
Q6
R12
2.4K
Q7 Q8
R4
430 R9
1.3K
R6
Q5
400
R5
5.1K
R7
1.8K
Q9
R10
470
Q10
R11
3.6K
V+
6 REGULATOR R31
560
R16
1.1K
R18
200
Q15
R15
2.4K
Z1
R1
3K
Z2
Q14
R14
6.8K
Q12 R22
Q11 Q13 3.3K
R13
1.5K
R17
6.2K
R20
820
D1
R19
240
PHASE
DETECTOR
R24 R29 R30
40K 1.5K 1.5K
Q16
Q19
R25
R23
6.8K
7.5K
R26
7.5K
Q17 R27 Q18
Q20 Q21
5
PHASE
DET. OUT
CA1394E
4
Q22 Q23
HORIZ
INPUT
4
CA1391E
510
D2
R28
910
2 GND
3 SYNC INPUT
NOTE: All resistances are in ohms.
8-11



No Preview Available !

CA1391, CA1394
Application Information
Circuit Operation (See Schematic Diagram)
The CA1391 and CA1394 contain the oscillator, phase
detector, and predriver sections necessary for the television
horizontal oscillator and AFC loop.
The oscillator is an RC type with Terminal 7 used to control the
timing. If it is assumed that Q7 is initially off, then an external
capacitor connected from Terminal 7 to ground charges through
an external resistance connected between Terminals 6 and 7. As
soon as the voltage at Terminal 7 exceeds the potential set at the
base of Q8 by resistors R11 and R12, Q7 turns on, and Q6 sup-
plies base current to Q5 and Q10. Transistor Q5 discharges the
capacitor through R4 until the base bias of Q7 falls below that of
Q8 at which time, Q7 turns off, and the cycle repeats.
The sawtooth generated at the base of Q4 appears across R3
and turns off Q3 whenever the sawtooth voltage rises to a value
that exceeds the bias set at Terminal 8. By adjusting the poten-
tial at Terminal 8, the duty cycle at the pre-drive output (Termi-
nal 1) may be changed. The phase detector is isolated from the
remainder of the circuit by R31, Z2, Q15 and Q16. The phase
detector consists of the comparator Q22 and Q23, and the
gated current source Q18. Negative going sync pulses at Ter-
minal 3 turn off Q17, and the current division between Q22 and
Q23 is then determined by the phase relationship of the sync
and the sawtooth waveform at Terminal 4, which is derived from
the horizontal flyback pulse. If there is no phase difference
between the sync and sawtooth, equal currents flow in the col-
lectors of Q22 and Q23 during each half of the sync pulse
period. The current in Q22 is turned around by current mirror
Q20 and Q21 so that there is no net output current at Terminal 5
for balanced conditions. When a phase offset occurs, current
flows either in or out of Terminal 5. In circuit applications, this
terminal is connected to Terminal 7 through an external low
pass filter, thereby controlling the oscillator.
Shunt regulation for the circuit is obtained by using a VBE
and zener multiplier. Resistors R13 and R14 multiply the VBE
of Q11, and the ratio of R15 and R16 multiplies the voltage of
the zener diode Z1.
5.0 TA = 25oC
FREE RUNNING FREQUENCY = 15734Hz
4.5
4.0
3.5
3.0
2.5
2.0
0
10 20 30 40 50 60
POSITIVE PULSE WIDTH AT TERMINAL 1 (µs)
70
FIGURE 2. DUTY CYCLE AT THE PRE-DRIVE OUTPUT (TERMINAL
1) AS IT IS AFFECTED BY THE INPUT AT TERMINAL 8
V+ 24V
620
3k
+150V
4k
10W
6800pF
120k
2.4k
2
2.7k
14k
470µF
0.47µF
8.2k
0.001µF
1.5k
8
1
270
0.0027µF
150k
76
CA1394
23
470pF
7.5k
0.01µF
5
4
0.1µF
390k
22
0.1µF
3.9k
SYNC
1.2k
20VP-P
5µs
60VP-P
10µs
FIGURE 3. TYPICAL CIRCUIT APPLICATION
8-12



CA1391 datasheet pdf
Download PDF
CA1391 pdf
View PDF for Mobile


Related : Start with CA139 Part Numbers by
CA139 Quad Voltage Comparators for Industrial / Commercial and Military Applications CA139
Intersil Corporation
CA139 pdf
CA1391 (CA1391 / CA1394) TV Horizontal Processors CA1391
Harris Corporation
CA1391 pdf
CA1394 (CA1391 / CA1394) TV Horizontal Processors CA1394
Harris Corporation
CA1394 pdf
CA139A Quad Voltage Comparators for Industrial / Commercial and Military Applications CA139A
Intersil Corporation
CA139A pdf

Index :   0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   

This is a individually operated, non profit site. If this site is good enough to show, please introduce this site to others.
Since 2010   ::   HOME   ::   Contact