NTE7045 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit Horizontal Signal Processing Circuit for CRT Displays

NTE7045
Integrated Circuit
Horizontal Signal Processing Circuit
for CRT Displays
Features:
D Processing for both Negative and Positive Sync. Signal
D Wide Horizontal Oscillation Frequency Range: 14kHz to 60kHz
D Wide Output Pulse Width Selection: 2µs to 40µs
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.2V
Supply Current, I_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Power Dissipation, P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1140mW
Operating Ambient Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Electrical Characteristics: (T_A = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Total Circuit Current
Polarity Changeover Voltage
I_tot
V_2–7
V_CC = 11V
Positive Polarity Signal Input
Negative Polarity Signal Input
Horizontal OSC Starting Voltage
Horizontal OSC Frequency
Horizontal OSC Enable
Frequency
V_{osc–s (H)} f_HO = 12kHz to 19kHz
f_HO(1) V_CC = 11V, C = 4400pf
f_HO(2) V_CC = 11V, C = 820pf, 5600pf
f_HO Change with Supply Voltage
f_HO Change with Ambient
Temperature
OSC Frequency Control
Sensitivity
∆f_HO/V_CC f_HO = 15.75kHz,
f_HO |9.9V – f_HC| 12.1V
∆f_HO/T_A f_HO = 15.75kHz,
f_HO |–20°C – f_HO| +60°C
β
∆I_O = ±25µA
Min Typ Max Unit
30 45 60 mA
0
– 0.4 V
2.5 – 5.5 V
7.5 –
–
V
15.0 15.75 16.5 kHz
14 – 60 kHz
– 40 130 Hz
–
– 260 Hz
16.0 17.6 19.3 Hz/µA