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| Princeton Technology Corp. Tel: 886-2-29162151 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 circuit are optimized for easy PCB layout and cost saving for audio applications. PT2381 is housed in a 16-Pin DIP or SO Package and is suitable for stereo applications. Features ! ! ! ! ! ! ! ! CMOS Technology Least External Components Enhanced Effects of PT2380 Available in 16 Pins, DIP or SO Package 4 Sound Effect Selections Available: Classical, Pops, Rock, and Normal/Flat Wide Operating Voltage Range: Vcc = 2 ~ 15 V Two Channels in the one chip Can be controlled by Micro-Processor Output Pin which is compatible with TA2078, M62412 Interface Definition Applications ! ! ! ! ! ! ! Mini Compo Car Stereo Radio Cassette Recorders Multi-Media Speaker MPEG Card Mini Walk-Man Other Audio Equipments Page 1 Feb. 1997 PT2381 v 1.0 Princeton Technology Corp. Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw 4-Mode Preset Equalizer IC PT2381 Pin Configuration Application Circuits Note: The Capacitor's Polarity of Pins: IN1, IN2, OUT1, OUT2 are dependent on the applied DC Level of Pins IN1, IN2, OUT1, OUT2. PT2381 v 1.0 Page 2 Feb. 1997 Princeton Technology Corp. Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw 4-Mode Preset Equalizer IC PT2381 PT2381 v 1.0 Page 3 Feb. 1997 |
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