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