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NTE7084

Integrated Circuit Color TV Sync Deflection Circuit

NTE Electronics 

Electrical Characteristics: (TA = +25°C, VCC14 = 12V unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

VCC14 Current Dissipation

VCC18 Supply Voltage

Zener Bias Minimum Current

ICC14

VCC18

13.5 – 29.0 mA

11.8 – 13.2 V

–

– 13 mA

Sync Separator Input DC Level

9.0 – 9.6 V

Sync Signal Peak Value

9.5 – 11.5 V

Burst Gate Pulse Peak Value (SCP)

9.5 – 11.5 V

Burst Gate Pulse Delay Time 1 (SCP)

TBR

Burst Gate Pulse Delay Time 2 (SCP)

TBF

Horizontal Blanking Pulse Peak Value (SCP)

–

– 0.5 µs

3.6 – 4.2 µs

2.7 – 3.3 V

Horizontal Blanking Pulse Peak Value (CBP)

I = 1mA

12.7 – 13.5 V

Vertical Blanking Pulse Peak Value (CBP)

Load Resistance R = 33kΩ

7.2 – 8.2 V

Vertical Frequency Pull–In Range

Vertical Sync 60Hz

9.0 – 11.0 Hz

Vertical Free–Running Frequency

Supply Voltage Dependence of Vertical

Frequency

fv VR1 = fv center 55Hz

V14 = 12V ±1V, 55Hz at 12V

50 – 60 Hz

–0.5 – 0.5 Hz

Middle Point Control Threshold Level

3.8 – 4.4 V

Vertical Blanking Threshold Level

5.0 – 5.7 V

Vertical Oscillation Start Voltage

–

–4

V

Temperature Characteristic of Vertical

Frequency

TA = –10° to +60°C

–0.028 – 0.028 Hz/°C

Vertical Driver Amplification Factor

12 – 17 dB

Horizontal AFCD.C Loop Gain

Horizontal Free–Running Frequency

Horizontal Oscillation Start Voltage

+sign at V1 = 5V,

–sign at V1 = 1V

fH fH center 15.73kHz

±0.6 – ±1.5 mA

–750 – 750 Hz

–

–4

V

Supply Voltage Dependence of Horizontal

Frequency

VZ – VZ x 90%

–50 – 50 Hz

Pin Connection Diagram

AFC Comparison

Sawtooth Wave Input

1

AFC Output 2

Time Constant Circuit 3

Horizontal Output 4

18 +VCC18 (Horizontal)

17

Composite Blanking

Pulse Output

16 Video Signal Input

(Positive)

15 Time Constant Circuit

Holddown Input 5

GND 6

Vertical Drive Output 7

Vertical Drive

Sawtooth Wave Input

8

Vertical Output

Middle Point Voltage

9

14 +VCC14 (Vertical)

13

Sandcastle Pulse

Output

12

Horiz, Vert Sync

Signal Output

11 Vertical Trigger Input

10 Time Constant Circuit

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