Tel: 886-2-29162151
Princeton Technology Corp.
Fax: 886-2-29174598 URL: http://www.
princeton.
com.
tw
4-Mode Preset Equalizer IC
PT2381
Description
PT2381 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).
PT2381 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 circui...