NTE1890 Datasheet, PDF (1/6 Pages) NTE Electronics – Integrated Circuit NTSC Decoder for TV

NTE1890
Integrated Circuit
NTSC Decoder for TV
Description:
The NTE1890 is a monolithic integrated decoder for the NTSC color television standards. It combines
all functions required for the demodulation of NTSC signals. Further more it contains a luminance
amplifier, an RGB–matrix and amplifier. These amplifiers supply output signals up to 5V peak–to–
peak (picture information) enabling direct drive of the discrete output stages.
Absolute Maximum Ratings:
Maximum Supply Voltage (Pin1), V_P = V_1–23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.2V
Maximum Total Power Disipation, P_tot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.7W
Operating Ambient Temperature Range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +65°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +150°C
Thermal Resistance, Junction–to–Ambient, R_thJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50K/W
Electrical Characteristics: (V_P = V_1–23 = 12V, T_A = +25°C unless otherwise specified)
Parameter
Symbol
Min Typ Max Unit
Supply (Pin1)
Supply Voltage
Supply Current
Total Power Dissipation
Luminance Amplifier (Pin9)
V_P = V_1–23
I_P = I₁
P_tot
8.0 12.0 13.2 V
– 85 – mA
– 1.0 – W
Input Voltage (Peak–to–Peak Value, Note 1)
Input Level Before Clipping
Input Current
Contrast Control Range
V_{9–23(p–p)}
V_9–23
I₉
– 450 – mV
–
–
2
V
– 0.15 1.0 µA
–17 – +3 dB
Control Voltage for an Attenuation of 40dB
– 1.2 –
V
Input Current Contrast Control
Peaking of Luminance Signal
I₇
–
– 15 µA
Output Impedance (Pin10)
Ratio of Internal/External Current when Pin10 is Short–Circuited
|Z_10–23|
– 200 –
Ω
–
3
–
Control Voltage for Peaking Adjustment (Pin11)
Input Impedance (Pin11)
V_11–23
|Z_11–23|
– 2.4 –
V
– 10 – kΩ
Note 1. Signal with the negative–going sync; amplitude includes sync amplitude.