TEA6100 - NXP

TEA6100 FM/IF system and microcomputer-based tuning interface

The TEA6100 is a FM/IF system circuit intended for microcomputer controlled radio receivers. The circuit includes highly sensitive analogue circuitry. The digital circuitry, including an I2C bus, controls the analogue circuitry and the AM/FM tuning and stop information for the microcomputer. Features • 4-stage symmetrical IF limiting amplifier • Software sel.

Features

• 4-stage symmetrical IF limiting amplifier
• Software selectable AM or FM input
• Symmetrical quadrature demodulator
• Single-ended LF output stage
• D.C. output level determined by the input signal
• Semi-adjustable AM and FM level voltage
• Multi-path detector/rectifier/amplifier circuitry
• 3-bit level information and 3-bit multi-path information PACKAGE OUTLINE 20-lead DIL; plastic (SOT146); SOT146-1; 1996 August 13. TEA6100
• Signal dependent 'soft' muting circuit; externally adjustable
• Reference voltage output (FM mode only)
• 8-bit AM/FM frequency counter with selectable counter re.