Description
The CXA2559Q is an IC designed for use in car stereo cassette decks. Functions include playback equalizer amplifier and music sensor into a single chip.

Features
• Few external parts
• Small package (40-pin QFP)
• Same pin configuration as for the Dolby B-C type NR system (CXA2561Q) and Dolby B type NR system (CXA2560Q)
• Playback equalizer amplifier and music sensor into a single chip
• FORWARD/REVERSE head select switch
• Mute function
• Music signal interval detection level can be set by the external resistors/capacitors (2 modes).
• High-frequency cut-off of the music sensor circuit can be adjusted by the external capacitance.

Applications
• Car stereo cassette decks
• Playback-only cassette decks