Description

The CXA2509AQ 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 (CXA2511AQ) and Dolby B type NR system (CXA2510AQ)

• Playback equalizer amplifier and music sensor into a single chip

• FORWARD/REVERSE head select switch

• Two-system (TAPE/AUX) input select switch

• 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