NTE NTE7062 Datasheet

NTE7062

Integrated Circuit

CRT Display Synchronization Deflection Circuit

Description:

The NTE7062 is a sync deflection circuit in a 20–Lead DIP type package. When used in combination
with the NTE1773 or the NTE1797 (for vertical output use) this device forms a sync–deflection circuit
that meets every requirement for CRT display use.

So far, ICs for color TV use have been applied to the sync–deflection circuit for CR T display use and
general purpose ICs such as one–shot multivibrators, inverters, and a lot of transistors have been
used to form the peripherals such as sync input interface, horizontal phase shifter. The NTE7062 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 Vertical Pull–In Range is Approximately 20Hz at Vertical Sync 50Hz/60Hz.
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 Vertical 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

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage, V10, V

Allowable Power Dissipation (TA ≤ +65°C), Pdmax 780mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Temperature Range, T
Storage Temperature Range, T

20

opr

stg

Vertical Block

D Vertical OSC
D Vertical Sawtooth Wave Generator
D Sampling Type DC Voltage Control

–20° to +85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Conditions: (TA = +25°C unless otherwise specified)
Recommended Supply Voltage, V10, V
Operating Voltage Range, V10, V

20

20

9 to 13.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics: (TA = +25°C, VCC10, 20 = 12V unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

V

Current Dissipation I

CC10

V

Current Dissipation I

CC20

Vertical Frequency Pull–In Range V

10
20
PIN

Vertical Free–Running Frequency f
Increased/Reduced Voltage

∆f

Characteristic of Vertical Frequncy

Midpoint Control Threshold Level 3.8 – 4.4 V

VCC10 12 – 30 mA
VCC20 5 – 12 mA
Vertical Sync 60Hz 19 – 23 Hz
fv center 55Hz 50 – 60 Hz

V

V20 = 12V ±1V, 55Hz at 12V –0.5 – 0.5 Hz

VV

12V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Vertical OSC Start Voltage F
Temperature Characteristic of Vertical

Frequency
Vertical Driver G
Amplification Factor Horizontal AFC

I

DC Loop Gain
Horizontal Free–Running Frequency f
Horizontal OSC Start Voltage f
Increased/Reduced Voltage

∆f
Characteristic of Horizontal
Frequency

Temperature Characteristic of

Horizontal Frequency

Horizontal Output Drive Current I
Comparison Wave Generation Input

Operating Voltage

Pin13 Voltage at Holddown

V

Operation Start Mode

vst

V

AFC

H

Hst

HV

13

V

4

13

– – 4.0 V

TA = –10° to +60°C –0.028 – 0.028 Hz/°C

12 – 18 dB

±1.0 – ±1.9 mA

fH center 15.734kHz –750 – 750 Hz

– – 4.0 V

V10 = 12V ±1V, 15.734kHz at 12V –50 – +50 Hz

TA = –10° to +60°C –2.9 – +2.9 Hz/°C

6 – 12 mA

0.6 – 0.9 V

0.5 – 0.8 V