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
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