Datasheet NTE7062 Datasheet (NTE)

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

Pin Connection Diagram

Horizontal Trigger Input

Phase Adjust T.C.

Sync Pulse Width T.C.

FBP Trigger Input

Comparision Voltage Generating Capacitor

AFC Output

Horizontal OSC T.C.

Discharge Resistor

Horizontal V

CC

1
2
3
4
5Sawtooth Wave Generating Capacitor

6
7

8
9

Vertical V

20

Vertical Trigger Input

19

Vertical OSC T.C.

18
17

Midpoint Voltage Control Point

16

Vertical Sawtooth Wave Generator

15

Vertical Drive Output

14

GND
X–Ray Protect Input

13

Horizontal Drive Output

12

Horizontal Drive Pulse Width Setting10 11

CC

20 11

.280 (7.12) Max

110

.995 (25.3) Max

.300 (7.62)

.280

(7.12)

.100 (2.54) .125 (3.17) Min .385 (9.8)