NTE7200 Datasheet, PDF (1/2 Pages) NTE Electronics – Intergrated Circuit FM Stereo Transmitter

NTE7200
Intergrated Circuit
FM Stereo Transmitter
Description:
The NTE7200 is a monolithic intergrated circuit in an 18-Lead DIP type package designed for use
as a stereo transmitter. This device consists of a stereo modulator that creates stereo composite sig‐
nals, an FM modulator that creates FM signals, and an RF amplifier. The stereo modulator develops
composite signals made up of a MAIN (L+R) signal, a SUB (L-R) signal and a pilot (19kHz) signal
using 38kHz crystal oscillators.
The FM modulator has carriers on the FM broadcast band (75 to 108MHz).
The RF amplifier transmits the stereo encoded FM signals and is also a buffer for the FM modulator.
The stereo transmitter is equipped with a constant voltage pin for a variable capacitor that is used to
finly adjust the FM frequency.
Features:
D Low Operating Voltage Range (1.0V to 2.0V)
D Low Power Consumption (3mA Typ)
D Few External Components Required
Applications:
D FM Stereo Transmitters
D Wireless Microphones
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Power Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5V
Power Dissipation, P_d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12mW/°C
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25 ° to +75°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -50 ° to +125°C
Recommended Operating Conditions: (T_A = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Power Supply Range
V_CC
1.0 1.25 2.0 V