NTE788 IF Stereo for FM Receiver PDIP-16
Info as pdf-file
Description:
The NTE788 is a monolithic integrated circuit in a 16-Lead DIP type package that provides all the
functions of a comprehensive FM-IF system. This device features a three-stage FM-IF amplifier/limiter
configuration with level detectors for each stage, a doubly-balanced quadrature FM detector, and
an audio amplifier that features the optional use of a muting (squelch) circuit.
The advanced circuit design of the IF system includes desirable deluxe features such as delayed AGC
for the RF tuner, an AFC drive circuit, and an output signal to drive a tuning meter and/or provide stereo
switching logic. In addition, internal power supply regulators maintain a nearly constant current
drain over the voltage supply range of +8.5V to +16V.
Features:
- Exceptional limiting sensitivity: 12μV typ. at -3dB point
- Low distortion: 0.1% typ. (with double-tuned coil)
- Single-coil tuning capability
- Improved S + N/N Radio
- Externally programmable recovered audio level
- Provides specific signal for control of interchannel muting (squelch)
- On channel step for search control
- Provides programmable AGC voltage for RF amplifier
- Internal supply-voltage regulators
- Externally programmable “ON” channel step width, and deviation at which muting occurs
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
DC Supply Voltage
Between Pin11 and Pin4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Between Pin11 and Pin14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
DC Current (Out of Pin15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA
Power Dissipation (Up to TA = 85°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640mW
Derate Above TA = +85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.9mW/°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 case, 10sec max), TL . . . . . . . . . . . . . . . . . +265°C
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