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| Princeton Technology Corp. Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Satellite + Subwoofer 3-Speaker System Electronic Crossover IC Preliminary PT2352 DESCRIPTION PT2352 is a 3-speaker system electronic crossover IC utilizing CMOS Technology specially designed for the new generation of audio equipments. 3-channel electronic volume control, 2-channel 2nd order high pass filter, 2nd order low pass filter and one mono subwoofer audio output are incorporated into a single high performance chips. PT2352 combines the electronic volume controller and crossover circuitry without MCU handling. Pin assignments and application circuit are optimized for easy PCB layout and cost saving advantages. FEATURES * * * * * * * * CMOS Technology Low Power Consumption 2 Built-in Individual Volume Control: 0 dB to -68dB 2-Channel 2nd Order High Pass Filter + 1 Mixed Mono Subwoofer Low Pass Filter Cross-Over Frequency adjustable by external passive components Control Interface of Volume Control: UP/DOWN Key (MCU is not necessary) Built-in 3D Effect and Loudness Function Supply Voltage: 5V to 9V APPLICATION * Audio Equipments PT2352 pre 1.0 1 Updated January 2001 Princeton Technology Corp. Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Satellite + Subwoofer 3-Speaker System Electronic Crossover IC Preliminary PT2352 PIN CONFIGURATION 3D_LED VDD ROUT RIN RT CR1 CR2 CR3 C2 REF C1N C1P SOUT PO PT2352 PT2352 pre 1.0 2 Updated January 2001 Princeton Technology Corp. Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Satellite + Subwoofer 3-Speaker System Electronic Crossover IC Preliminary PT2352 APPLICATION CIRCUIT V DD 9V 3D 3D LED LOUT 100k LIN 10uf + 10uf + 8200p 0.33u REF 2.2k 220 C C SUP SDW MUP MDW 33k OSC + 2.2uf 3D_LED VDD ROUT RIN RT CR1 CR2 CR3 C2 REF C1N C1P SOUT PO V DD 9V 10uf ROUT 10uf RIN 100k 100uf 2.2k C C 220 8200p 0.33u REF C2 REF 100uf C1 10uf SOUT 100k (See Note 2) Power (See Note 2) PT2352 Notes: 1. Please refer to the PT2352 Crossover Frequency Response Curve for the values of C, C1, C2. 2. Please refer to Power Control (PO) Section of this document. PT2352 pre 1.0 3 Updated January 2001 Princeton Technology Corp. Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Satellite + Subwoofer 3-Speaker System Electronic Crossover IC Preliminary PT2352 ORDER INFORMATION Valid Part Number PT2352 PT2352-S Package Type 28 Pins, DIP Package (600 mil) 28 Pins, SO Package (300 mil) PT2352 pre 1.0 4 Updated January 2001 |
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