NTE NTE1539 Integrated circuit color tv sync deflection circuit Datasheet

NTE1539
Integrated Circuit
Color TV Sync Deflection Circuit
Description:
The NTE1539 is a multifunctional integrated circuit which is based on the internal circuit of the
NTE1538. It incorporates various functions required for synchronization and deflection circuits of color television sets and especially aims at increasing the detections accuracy of the X–ray protection
circuit. The ground pins for horizontal and vertical are provided separately to enable the easy layout
of the printed circuit board.
The NTE1539 differs from the NTE1538 in the following points:
D The output circuit of synchronizing separation is emitter follower type
D The X–ray protection circuit is differential dual inouts thyristor system
D The ground pins for horizontal and vertical are provided separately.
Functions:
D Synchro Separator
D Horizontal AFC
D Vertical Driver
D Vertical Blanking Pulse Making
D Horizontal Oscillator
D Vertical Oscillator
D X–Ray Protector
Features:
D Multifunctional and Small–Size
D Minimum Number of Parts Required
D Horizontal and Vertical Oscillators being Stable to Variation of Ambient Temperature and Supply
Voltage Owing to Small Warming–Up Drift.
D Small Variation of Horizontal Oscillation Frequency
D Good Linearity and Interface Owing to DC Bias at Vertical Output Stage being Sampling
Controlled within Retrace Time.
D Vertical Blanking Pulse Width being Freely Set Up According to Peripheral Parts.
D High Detection Accuracy of X–Ray Protection Circuit.
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage, V14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Maximum Supply Current, I17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16mA
Allowable Power Dissipation (TA = +60°C), PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450mW
Operating Temperature Range, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Recommended Operating Condition: (TA = +25°C unless otherwise specified)
Recommended Supply Voltage, V14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Electrical Characteristics: (TA = +25°C, V14 = 12V, ICC17 = 13mA unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
VCC14 Current Dissipation
ICC14
9.0
–
15.0
mA
VCC17 Supply Voltage
VCC17
11.8
–
13.2
V
9.0
–
11.0
Hz
50
–
60
Hz
–0.5
–
0.5
Hz
–0.028
–
4.0
–
7.0
times
fH center 15.734kHz
–750
–
750
Hz
Supply Voltage Dependence of
Horizontal Frequency
VZ–VZ x 90%
–50
–
50
Hz
Temperature Characteristic of
Horizontal Frequency
TA = –10° to +60°C (IC only)
–3.4
–
3.4
Hz/°C
Horizontal Output Pulse Width
fH = 15.734kHz
21.5
–
26.5
µs
4.9
–
8.3
mA
Vertical Frequency Pull–In Range
Vert Free Running Frequency
fv
fv center 55Hz
Supply Voltage Dependence of
Vertical Frequency
V14 = 12 ±1V, 55Hz at 12V
Temperature Characteristic of
Vertical Frequency
TA = –10° to +60°C
Vertical Driver Amplification Factor
Horizontal Free Running Frequency
Horizontal Output Drive Current
fH
0.028 Hz/°C
Pin Connection Diagram
AFC Output 1
18 Flyback Input
Horiz Hold 2
17 VCC (115V)
16 Video Input
Horiz OSC Output 3
GND 4
15 Sync Separator Output
X–Ray Protect 5
14 VCC
X–Ray Protect 6
13 Vert Blank Output
GND 7
12 Vert Sync Input
11 Vert Hold
Vert Drive Output 8
Vert Height 9
10 Vert Feedback
18
10
1
9
.870 (22.1) Max
.250 (6.35)
.150
(3.8)
.100 (2.54)
.800 (20.3)
.125 (3.17) Min
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