NTE7048 Datasheet, PDF (1/5 Pages) NTE Electronics – Integrated Circuit NTSC Decoder w/Fast RGB Blanking

NTE7048
Integrated Circuit
NTSC Decoder ^w/Fast RGB Blanking
Description:
The NTE7048 is a monolithic integrated decoder for the NTSC color television standard. This device
combines all functions required for the identification and demodulation of NTSC signals ina 20–Lead
DIP type package. Furthermore, it contains a luminance amplifier, an RGB–matrix and amplifier.
These amplifiers supply output signals up to 5V_P–P (Picture information) enabling direct drive of dis-
crete output stages.
Features:
D Automatic Chrominance Leveling (Avoids Saturation at the Chrominance Input)
D Peaking Circuit with DC Control
D Fast RGB Output Blanking
Absolute Maximum Ratings:
Supply Voltage (Pin1), V_P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.2V
Total Power Dissipation, P_tot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1700mW
Operating Ambient Temperature Range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +65°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Thermal Resistance, Junction–to–Ambient, R_thJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50K/W
Electrical Characteristics: (T_A = +25°C, V_P = 12V, All voltages referenced to Pin19, unless
otherwise specified)
Parameter
Symbol Test Conditions Min Typ Max Unit
Supply (Pin1)
Supply Voltage
V_P
10.8 12.0 13.2 V
Supply Current
I_P
–
90
– mA
Total Power Dissipation
P_tot
Luminance Amplifier (Pin8)
–
1.08
–W
Input Voltage (Peak–to–Peak Value)
Input Level before Clipping
Input Current
V_8(P–P)
V₈
I₈
Note 1
–
450
– mV
–
–
1.0 V
–
0.15 1.0 µA
Contrast Control Range
– –17 to +3 – dB
Input Current Contrast Control
I₆
V₆ < 6V
V₆ = 2.5V, Note 2
–
0.5 15.0 µA
3
7
– mA
Note 1. Signal with negative going sync; amplitude includes sync. pulse amplitude.
Note 2. Peak white limiter active.