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PDF NTE790 Data sheet ( Hoja de datos )
| Número de pieza | NTE790 | |
| Descripción | Integrated Circuit Dual Chroma Demodulator | |
| Fabricantes | NTE Electronics | |
| Logotipo |  |
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NTE790
Integrated Circuit
Dual Chroma Demodulator
Description:
The NTE790 has two sets of synchronous detectors with matrix circuits to achieve the R–Y, G–Y and
B–Y color difference output signals. The chroma input signal is applied to Pin3 and Pin4 while the
oscillator injection signal is applied to Pin6 and Pin7. The color difference signals, after matrix, have
a fixed relationship of amplitude and phase nominally equal DC voltage levels. The outputs of the
NTE790 are suitable for driving high level color difference or R, G, B output amplifiers. Emitter–follower
output stages used to drive the high level color amplifiers have short–circuit protection.
Absolute Maximum Rating: (TA = +25°C unless otherwise specified)
DC Supply Voltage (Pin8 to Pin14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27V
Reference Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Vp–p
Chroma Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Vp–p
Total Device Dissipation (Up to TA = +70°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530mW
Derate Above TA = +70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.7mW/°C
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +85°C
Storage Temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature (During Soldering, 1/32” from seating plane, 10sec max), TL . . . . . . . . . +265°C
Electrical Characteristics: (TA = +25°C and V+ = 24V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Static Characteristics
Supply Current
With Output Loads
With No Output Loads
G–Y, R–Y, B–Y Outputs
Chroma Inputs
IT S1 Closed
S1 Open
V9, V11, V13 S1 Closed
V3, V4 S1 Open
16.5 – 26.5 mA
– 9 – mA
13.2 14.7 15.8 V
– 3.3 – V
Reference Subcarrier
Demodulator Unbalance
Maximum Color Difference Output Voltage
V6, V7 S1 Open
V9, V11, V13 V3 = V4 = 0
V13 V3 = v4 = 0.6Vp–p
V11
– 6.2 – V
– – 0.8 Vp–p
8.0 –
– Vp–p
5.5 –
– Vp–p
V9
1.2 –
– Vp–p
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet NTE790.PDF ] | |
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