Description

The CA2111A provides a multistage wideband amplifier limiter, a quadrature detector, and an emitter-follower output stage. This device is designed for use in FM receivers and in the sound IF sections of TV receivers. In addition, an output terminal is provided which allows the use of the amplifier limiter as a straight 60dB wideband amplifier.

Features

• Input Limiting Voltage At 10.7MHz . . . . . . . . . . . 400µV

• Input Limiting Voltage At 4.5, 5.5MHz . . . . . . . . 250µV

• Typical AM Rejection At 10.7MHz. . . . . . . . . . . . . 45dB

• Provision for Output from 3-Stage IF Amplifier Section

• Low Harmonic Distortion

• Quadrature Detection Permits Simplified Single-Coil Tuning

• Extremely Low AFC Voltage Drift Over Full Operating Temperature Range

• Minimum Number of External Components Required

Applications

• FM IF Sound

• TV Sound IF