NTE NTE1295 Datasheet

NTE1295

Integrated Circuit

TV Signal Processor

Description:

The NTE1295 is an integrated circuit in an 18–Lead DIP type package designed for color TV deflec­tion signal processing circuit. It can be operated with 12V power supply and is suitable for compact
and medium–sized color TV sets.

Features:

D Built–In Vertical Deflection Driver Circuit
D Incorporating Vertical and Horizontal Oscillator Circuit, Operations Highly Stable Against

Changes in Supply Voltage and Temperature.

D Highly Stable Synchronous Separation Circuit Against Noise
D Built–In High Tension Protector Circuit (X–Ray Protection)
D 12V Supply Voltage Operation.

Absolute Maximum Ratings

: (TA = +25°C, Note 1 unless otherwise specified)

Supply Voltage

V

7–8

V

15–8

Circuit Voltage

V

1–8

V
V
V
V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10–8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12–8
17–8
18–8

Supply Current

I

7

I

15

Circuit Current

I

2

I

3

I

4

I

5

I

6

I

9

I

12

I

13

Power Dissipation, P
Operating Ambient Temperature Range, T
Storage Temperature Range, T

D

opr

stg

Note 1.  and  are flow–in and flow–out currents to/from the circuit, respectively.

10.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14.4V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0 to 10V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0 to V
0 to V

15–8
15–8

–0.6 to 6.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–3 to +2V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–3 to +3mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–5 to 0mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–5 to +5mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–1 to +1mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20 to 0mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–15 to 0mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–1 to +150mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0 to 40mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

450mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics: (TA = +25°C unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Circuit Current I

Protector Operating Voltage V
Oscillation Starting Voltage

(V  O
Vertical Oscillation Frequency f
fVO Change with Supply Voltage ∆fVO/V
Pulse Width (V  Osc) t V
Vertical Pull–In Range f
Vertical Sawtooth Wave

Amplification
fVO Change with Ambient

Temperature

v

Change with Ambient

(saw)

Temperature
Vertical Output Tr Drive Current I
Oscillation Starting Voltage

(H  O
Horizontal Oscillation Frequency f
fHO Change with Supply Voltage ∆fHO/V
Pulse Width Duty Ratio (H  Osc) t V
fHO Control Sensitivity b IO = ±100mA 19 21 23 Hz/µA

sc

sc

)

)

7

I

15
5–8

V

OSC–SfVO

VO

VP

v

(saw)

∆fVO/TATA = –20° to +70°C, Note 2 –220 –170 0 ppm/°C

∆v

(saw)/T

9

V

OSC–SfHO

HO

Apply 12V with 240Ω to Pin7 7.5 11.2 15.0 mA
V

= 12V 15.5 23.0 32.0 mA

15–8

Apply 12V with 240Ω to Pin7 0.64 0.70 0.76 V

= 40 to 70Hz, 1.0V

V

= 12V 53 55 58 Hz

CC1

CCfVO|9.6V

R
R

A TA = –20° to +70°C, Note 2 – – 30 mV

1.4V
V

CCfHO|13V

to f

VO|14.4V

= 12V 500 600 820 µs

CC1

= 10.93kΩ, (fVO = 48 ±1.5Hz) – – 50 Hz

OSC

= 26.4kΩ 1.8 2.0 2.2 V

SAW

= 10 to 20kHz,

or More (V

P–P

= 12V 15.0 15.6 16.25 kHz

CC2

to fH

O|10V

= 12V 32.0 36.0 39.5 %

CC2

or More – – 6.2 V

P–P

0 0.93 1.3 Hz

– – 7.5 mA
– – 6 V

= 6.5V)

CC2

0 25 45 Hz

P–P

P–P

/°C

fHO Change with Ambient

Temperature
AFC Loop Gain f

∆fHO/TATA = –20° to +70°C, Note 2 –210 –100 0 ppm/°C

Note 2. Design reference value.

Horiz Sawtooth

Horiz Hold

Horiz Driver

Vert Output

AFC

m x b 5800 7700 9600 Hz/rad

Pin Connection Diagram

1

Filter

2
3

Bypass

4
5Protector Input
6
7Voltage Regulator
8GND
9 10

18

Video Input

17

Noise Detector

16

Horiz Sync Output
V

15

CC

14 Bypass
13 Vert Hold

Vert Height

12

Vert Ramp Generator

11

Vert Driver Input