PTC Princeton Technology Corp.
Tel : 886-2-29162151 Fax : 886-2-29174598 4 Mode Preset Equalizer IC Preliminary PT 2380 Description PT 2380 is a pre-set equalizer IC utilizing CMOS Technology specially designed for audio equipment.
It features four sound selections, namely: Classical, Pops, Rock and Normal/Flat which may be selected by the 2 control pins (SW1 and SW2).
PT 2380 has 2 built-in channels - each containing an internal operation amplifier and selectable resistors.
Thus, least external components are used.
By connecting only 3 capacitors to each channel, the high performance pre-set equalizing function of this IC is achieved.
Pin assignments and application circuit are optimize...

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