NTE NTE7086 Integrated circuit sync deflection circuit for crt display Datasheet

NTE7086
Integrated Circuit
Sync Deflection Circuit for CRT Display
Description:
The NTE7086 is a syncdeflection circuit IC in a 20–Lead DIP type package dedicated to CRT display
use. This device can be connected to the NTE1773/NTE1797 (for vertical output use) to form a
syncdeflection circuit that meets every requirement for CRT display use.
So far, IC’s for color TV use have been applied to the syncdeflection circuit for CRT display use and
general–purpose IC’s such as one–shot multivibrators, inverters, and a lot of transistors have been
used to form the peripherals such as the sync input interface and horizontal phase shifter.
The NTE7086 contains these peripherals on chip and adopts a stable circuit for horizontal oscillation
from 15kHz to 100kHz aiming at improving the characteristics required for CRT display use.
Features:
D The Horizontal Oscillation Frequency can be Adjusted Stably from 15kHz to 100kHz.
D The Horizontal Display can be Shifted Right/Left.
D The Horizontal/Vertical Sync Input can be used intact Regardless of the Difference in Pulse
Polarity and Pulse Width.
D The AFC Feedback Sawtooth Wave can be Obtained by Simply Applying a Flyback Pulse to
the IC as a Trigger Pulse.
D Any Duty of the Horizontal Pulse Can be Set.
D Good Linearity because DC Bias at Vertical Output Stage is Subjected to Sampling Control
within Retrace Time.
On–Chip Functions:
Horizontal Block
D AFC
D Horizontal OSC
D X–Ray Protector
D Horizontal Phase Shifter
D AFC Sawtooth Wave Generator
D Horizontal Pulse Duty Setting
Vertical Block
D Vertical OSC
D Vertical Sawtooth Wave Generator
D Sampling Type DC Voltage Control
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage, V10max, V20max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Allowable Power Dissipation (TA ≤ +65°C), PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 780mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Operating Voltage Range, V10opr, V20opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.0V to 13.5V
Recommended Supply Voltage, V10, V20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Electrical Characteristics: (TA = +25°C, VCC10 = VCC20 = 12V unless otherwise specified)
Parameter
Current Dissipation
Symbol
Test Conditions
Min
Typ
Max
Unit
I10
VCC10
12
–
30
mA
I20
VCC20
5
–
12
mA
Vertical Sync 60Hz
10
–
12
Hz
fv
fV center 55Hz
50
–
60
Hz
∆fVv
V20 = 12V ±1V
–0.5
–
0.5
Hz
55Hz at 12V
3.8
–
4.4
V
–
–
4.0
V
–0.028
–
12
–
18
dB
±1.0
–
±1.9
mA
–750
–
750
Hz
–
–
4
V
V10 = 12V ±1V
–50
–
50
Hz
15.735kHz at 12V,
TA = –10° to +60°C
–2.9
–
2.9
Hz/°C
V4
0.6
–
0.9
V
Holddown Operation Start Voltage
V13
0.5
–
0.8
V
Horizontal Drive Current
I12
6.0
–
12.0
mA
Vertical Frequency Pull–In Range
Vertical Free–Running Frequency
with Increased/Reduced Voltage
Vp–in
Characteristic of Vertical Frequency
Middle–Point Voltage Control
Threshold Level
Vertical OSC Start Voltage
TA = –10° to +60°C
Temperature Coefficient of Amplitude
Frequency
Vertical Driver Amplification Factor (VGV)
with Horizontal AFC Loop Current
Horizontal Free–Running Frequency
Horizontal OSC Start Voltage
with Increased/Reduced Voltage
IAFC
fH
∆fHv
Characteristic od Horizontal Frequency
with Temperature Characteristic of
Horizontal Frequency
Comparison Wave Generation Input
fH center 15.734kHz
0.028 Hz/°C
Operating Voltage
Pin Connection Diagram
Horiz Trigger Input
Phase Adjust Time
Constant
Sync Pulse Width
Time Constant
FBP Trigger Input
Sawtooth Wave
Generating Cap
Comparison Voltage
Generating Cap
AFC Output
Horiz OSC Time
Constant
Discharge Resistor
1
20 Vert Power Supply
2
6
19 Vert Trigger Input
18 Vert OSC Time
Constant
17 Middle–Point Voltage
Control Point
16 Vert Sawtooth Wave
Generation
15 Vert Drive Output
7
14 GND
8
13 X–Ray Protect Input
9
12 Horiz Drive Output
11 Horiz Drive Pulse
Width Setting
3
4
5
Horiz Power Supply 10
20
11
.280 (7.12) Max
1
10
.995 (25.3) Max
.300 (7.62)
.280
(7.1)
.100 (2.54)
.125 (3.17) Min
.385 (9.8)
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