NTE NTE1538 Datasheet
NTE1538
Integrated Circuit
TV Horizontal/Vertical OSC Driver
Description:
The NTE1538 is a multifunctional integrated circuit in a 16–Lead DIP type package containing various
functions required for synchronization, deflection of color television sets. This device has been developed under the design concept that the basic characteristics should be made more complete and the
television sets incorporating the NTE1538 should be streamlined by making the device compact and
by minimizing the number of parts required.
Functions:
D Synchronizing Separation
D Horizontal Oscillation
D Vertical Drive
D Vertical Blanking
D Horizontal AFC
D Vertical Oscillation
D X–Ray Protection
Features:
D Multifunctional and Compact
D Minimum Number of Parts Required
D Horizontal, Vertical Oscillators are Stable Against Variations in Ambient Temperature and Supply
Voltage due to Small Warm–Up Drift.
D Small Variation in Horizontal Oscillation Frequency
D Good Linearity and Interlace because D C Bias at Vertical Output Stage is Subjected to Sampling
Control within Retrace Time.
D Vertical Blanking Pulse Width can be Set Freely According to Peripheral Parts
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage, V
Maximum Supply Current, I
12
15
14V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Power Dissipation (TA = +60°C), PDmax 450mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
Storage Temperature Range, T
–20° to +85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
opg
–55 to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
Recommended Operating Condition: (TA = +25°C unless otherwise specified)
Recommended Supply voltage, V
12
12V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (TA = +25°C, V12 = 12V, I
= 13mA unless otherwiss specified)
CC15
Parameter Symbol Test Conditions Min Typ Max Unit
V
Current Dissipation I
CC12
V
Supply Voltage V
CC15
CC12
CC15
13.0 – 20.0 mA
11.8 – 13.2 V
Vertical Frequency Pull–In Range 9.0 – 11.0 Hz
Vertical Free–Running Frequency f
Supply Voltage Dependence of Vertical
fV center 55Hz 50 – 60 Hz
V
V12 = 12 ±1V, 55Hz at 12V –0.5 – 0.5 Hz
Frequency
Temperature Characteristic of Vertical
TA = –10° to +60°C –0.028 – –0.028 Hz/°C
Frequency
Vertical Driver Amplification Factor 12 – 17 dB
Horizontal Free–Running Frequency f
Supply Voltage Dependence Horizontal
fH center 15.734kHz –750 – 750 Hz
H
VZ – VZ X 90% –50 – 50 Hz
Frequency
Temperature Characteristic of Horizontal
TA = –10° to +60°C –3.4 – 3.4 Hz/°C
Frequency
Horizontal Output Pulse Width fH = 15.734kHz 21.5 – 26.5 µs
Horizontal Output Drive Current 3.8 – 7.2 mA
Pin Connection Diagram
AFC Output
Horiz OSC Input
Horiz OSC Output
X–Ray Protect
GND
Vert Output
Vert Driver Input
Vert Driver Input
1
2
3
4
5
6
7
8
16
AFC Input
VCC (115V)
15
14
Sync Separator Input
Sync Separator
13
Output
V
12
CC
11
Vert OSC Input
10
Vert OSC Input
9
Vert Blank Output
16 9
18
.785 (19.9)
.245
(6.22)
Min
.700 (17.7)
Max
.100 (2.54)
.260 (6.6) Max
.300
(7.62)
.200 (5.08)
Max
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