8-BIT SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR AUTOMOTIVE FM/MW/LW RADIO WITH CD PLAYER

The µPD178024GC-051 is an 8-bit CMOS microcontroller for use in digital tuners designed to receive the European and USA FM, MW, and LW bands. It incorporates a prescaler, PLL frequency synthesizer, and IF counter. The device has various CD player control functions and enables the configuration of a high-performance, multifunction FM/MW/LW tuner with CD player, such as an automotive stereo system, using a single chip.

FEATURES

• Preset memory

Stores six stations in each of the FM1, FM2, FM3,

AM1 (shared by MW), and AM2 (shared between

MW and LW) bands, giving a total of 30 stations

• Last channel memory

One station per band, totaling 5 stations

• Tuning functions

• Manual seek/auto-seek

• Auto-storage

• Preset scan

• Auto-retuning

• LCD controller/driver (µPD16431A)

• Single power supply (VDD = 5 V ±10)

• CD player control functions

• 8 cm/12 cm disc detection

• Track repeat

• Intro playback

• Random play

• Program playback

(with CD player (CDC-01KG) connected)

• Electronic volume control (TDA7313)

• Equalizer function (TA2078P)

• Remote-controller signal reception function

(µPD6121G is used for sending the remotecontroller signal)

• Rotary commander

• Front panel control