DESCRIPTION

The TDA7326 is a PLL frequency synthesizer in CMOS technology that performs all the function of a PLL radio tuning system for FM and AM (LW, MW, SW)

■ FM INPUT AND PRECOUNTER FOR UP TO 140MHz

■ AM INPUT FOR UP TO 40MHz

■ 6-BIT SWALLOW COUNTER, 8-BIT PROGRAMMABLE COUNTER FOR FM AND SW

■ 14-BIT PROGRAMMABLE COUNTER FOR LW AND MW

■ THREE WIRES 8-BIT SERIAL INTERFACE

■ ON-CHIP REFERENCE OSCILLATOR AND COUNTER

■ PROGRAMMABLE SCANNING STEPS FOR AM AND FM

■ DIGITAL PHASE DETECTOR AND LOOP FILTER

■ TWO SEPARATE FREE PROGRAMMABLE FILTER APPLICATIONS AVAILABLE

■ TUNING VOLTAGE OUTPUT 0.5 TO 9.5V

■ PROGRAMMABLE CURRENT SOURCES TO SET THE LOOP GAIN

■ ON-CHIP POWER ON RESET

■ STANDBY MODE