Overview

The LC75010W is a car audio DSP IC that integrates the signal processing required by car audio systems, A/D and D/A converters, volume control, and other functions on a single chip. It can implement a car audio system with a minimal number of external components.

Features

• Hardware Functions

— Analog source selector (BTL:1ch, OTL:3 ch)

— 20 bits A/D (2ch)

— 24 bits DSP (core, program memory, data memory)

— SIO (CCB I/F) (CCB is LSB first input.)

— 24 bits D/A (4ch)

— EVR (4ch)

• Software Functions* (See Note.)

— Bass/Mid/Treb

— Bal/Fad

— Fixed equalizer (Front/Rear/separately controlled)

— Loudness control

— Hybrid volume

— Anti-hard clip

— Dedekind (Speaton**) Note *: Software specifications can be modified in response to user requests.

• DSP Functions (24 fixed-point DSP)

— Program ROM — 8k words

— Data RAM — 896 words

• Supply Voltage and Package Specifications

— DSP core, A/D converter (digital block), D/A converter (digital block): 3.3 V

— A/D converter (analog block), D/A converter (analog block), volume control, crystal oscillator: 5 V

— Package: 100-pin SQFP (14×14 mm)