NTE NTE1888 Datasheet

NTE1888

Integrated Circuit

Horizontal and Vertical Deflection Monitor

Features:

D Direct Line Darlington Drive
D Direct Frame Yoke Drive (± 1A)
D Composite Video Signal Input Capability
D Frame Output Protection Against Short Circuits
D PLL

Description:

The NTE1888 is both a horizontal and a vertical deflection circuit in one 16–Lead DIP package.

Absolute Maximum Ratings:

Supply Voltage VCC1 30V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flyback Generator Supply Voltage V
Frame Power Supply Voltage V
Frame Output Current, I

8

Non–Repetitive ±1.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous ±1.0A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Line Output Voltage (External), V
Line Output Peak Current, I

P14

Line Output Continuous Current, I
Storage Temperature Range, T
Maximum Operating Junction Temperature, T
Maximum Thermal Resistance, Junction–to–Case, R
Typical Thermal Resistance, Junction–to–Ambient, R

(soldered on a 35µm thick 45cm2 PC board copper area) 45°C/W. . . . . . . . . . . . . . . . . . . . . .

Maximum Recommended Junction Temperature, T

2

7

60V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14

C14

stg

j

thJC

thJA

+120°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

J

–40° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . .

35V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

60V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0.8A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0.4A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics

Parameter Symbol Test Conditions Min Typ Max Unit

Supply Current ICC1
Supply Voltage VCC1 ICC1 = 15mA 9.0 9.8 10.5 V
Voltage Variation ∆VCC1 ICC1 = 10mA→20mA –280 50 +280 mV
Starting Threshold for

Line Output Pulses

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

@ Pin16

LPS – – 5 V

10 – 20 mA

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

Parameter Symbol Test Conditions Min Typ Max Unit

Reference Voltage V
Minimum Width of Frame Pulse

MWF 50 – – µs

15

@ Pin15

I15 = –1µA 1.4 1.75 2.0 V

(when synchronized with TTL

signal)
Low Threshold Voltage LT
High Threshold Voltage HT
Bias Current BI
Discharge Impedance DR
Free Running Line Period

FLP1 R = 34.9kΩ to Vcc1,

9

9

@ Pin9

9

9

2.8 3.2 3.6 V

6.4 6.6 7.8 V
– 100 – nA

1.0 1.4 1.8 kΩ

62 64 66 µs

C = 2.2nF to GND

FLP2 R = 13.7kΩ, C = 2.2nF – 27 – µs

Oscilator Threshold for Line Output

OT

9

– 4.6 – V

Pulse Triggering

Horizontal Frequency Drift

w

/Temperature

Saturation Voltage LV

DF

∆Θ

14

@ Pin14

– 2 – Hz/°C

I14 = 200mA – 1.1 1.6 V
Output Pulse Width OPW Line Period = 64µs 20 22 24 µs
Bias Voltage V
Input Impedance Z
Output Current During Synchro

11

11

I

10

@ Pin11

@ Pin10

1.8 2.4 3.2 V

4.5 5.8 8.0 kΩ

250 450 800 µA

Pulse
Current Ratio RI
Leakage Current LI
Control Range Voltage CV
Low Threshold Voltage LT
High Threshold Voltage HT
Bias Current BI
Discharge Impedance DR

10

10

10

1

1

@ Pin1

1

1

Free Running Frame Period FFP1 @ Pin1 R = 845kΩ to Vcc1,

Positive/Negative 0.95 1.0 1.05

–2 – +2 µA

2.6 – 7.1 V

1.6 2.0 2.3 V

2.6 3.1 3.6 V
– 30 – nA

300 470 700 W

20.5 23.0 25.0 ms

C = 180nF to GND

Minimum Frame Period MFP

I15 = –100µA,
R = 845kΩ to V

cc

– 12.8 – ms

1,

C = 180nF to GND
Free Running Frame Period FFP2 R = 408kΩ, C = 220nF – 14.3 – ms
Frame Period Ratio FPR Note 1 1.7 1.8 1.9
Frame Sawtooth Gain FG Between Pin1 and

– –0.4 –
Non–Inverting input of
the Frame Amplifier

Vertical Frequency Drift

w

/Temperature

Operating Voltage V

Note 1. Frame Period Ratio =

FFP

DF

∆Θ

@ Pin1 – 4.1

7

@ Pin7w/Flyback Generator 10 – 58 V

–3

– Hz/°C

MFP