tel : 886 - 2 - 29162151 fax: 886 - 2 - 29174598 url: http://www.princeton.com.tw 4 - channel audio processor PT2312 PT2312 v1.0 page 1 updated september 2001 princeton technology corp. description PT2312 is a four - channel digital control audio processor utilizing cmos technology. volume, bass, balance, front/rear fader processor, selectable input gain are incorporated into a single chip having the highest performance and reliability w ith the least external components. all functions are programmable using the i 2 c bus. PT2312 is housed in 32 - pin, sop package. 4 stereo inputs with selectable input gain, 2 - band tone control (treble & bass), balance, fader and loudness function are in corporated into a single chip having the highest performance and reliability. pin assignments and application circuits are optimized for easy pcb layout and cost saving advantages. features cmos technology least external components treble and bass contr ol loudness function 4 stereo inputs with selectable input gain input/output for external noise reduction system/equalizer 4 independent speaker controls for fader and balance independent mute function volume control in 1.25 db/step low distortion low no ise and dc stepping controlled by i 2 c bus micro - processor interface available in 32 pins, sop package applications car stereo (audio) hi - fi audio system lcd monitor
tel : 886 - 2 - 29162151 fax: 886 - 2 - 29174598 url: http://www.princeton.com.tw 4 - channel audio processor PT2312 PT2312 v1.0 page 2 updated september 2001 princeton technology corp. pin configuration
tel : 886 - 2 - 29162151 fax: 886 - 2 - 29174598 url: http://www.princeton.com.tw 4 - channel audio processor PT2312 PT2312 v1.0 page 3 updated september 2001 princeton technology corp. application circuit notes: 1. the resistor ( r ) range = 2.0k ohms to 3.6 k ohms. 2. resistor ( r ) recommended value = 2.4 k ohms
tel : 886 - 2 - 29162151 fax: 886 - 2 - 29174598 url: http://www.princeton.com.tw 4 - channel audio processor PT2312 PT2312 v1.0 page 4 updated september 2001 princeton technology corp. order information valid part number package type PT2312 32 pins, sop (300 mil)
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