NTE744 RF/IF Amplifier PDIP-14
Info as pdf-file
Description:
The NTE744 is a monolithic silicon integrated circuit that provides an rf amplifier, if amplifier, mixer,
oscillator, AGC detector, and voltage regulator on a single chip. It is intended for use in super-heterodyne
AM radio receiver applications particularly in automobiles. The NTE744 is supplied in a 14-lead
dual-in-line plastic package and operates over the temperature range of -55° to 125°C.
Features:
- Low-noise, low-Rb, rf stage in cascode connection-eliminates Miller-Effect regeneration and
allows controlled power rise by the choice of external components.
- Mixer-oscillator stage with internal feedback-eliminates need for tapped or multi-winding oscillator
coils
- Cascode if amplifier with controlled output impedance and negligible Miller Effect-eliminates
regeneration and selectivity skewing
- Frequency-counter AGC circuit-allows control of AGC response by selection of the coupling
capacitor.
- Integral regulation with built-in surge protection
- Separately accessible amplifiers
Absolute Maximum Ratings:
DC Supply Voltage (Pin3), V+.........................................................9V
DC Supply Voltage (IF Output, Pin6).................................................. 40V
DC Supply Voltage (RF Output, Pin13)................................................ 20V
DC Supply Voltage (Mixer Output, Pin14).............................................. 20V
DC Current (Pin3)................................................................ 35mA
Power Dissipation (Up to TA = +55°C), PD.........................................750mW
Derate Above TA = 55°C...............................................6.67mW/°C
Operating Ambient Temperature Range, Topr.................................-55° to +125°C
Storage Temperatur Range, Tstg............................................ -65° to +150°C
Lead Temperature (During Soldering, 1/16” (1.59mm)from case, 10sec max), TL........ +265°C
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