princeton technology corp. tel: 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw digital echo/surround processor ic pt2396 pt2396 v1.2 page 1 written nov. 1998 description pt2396 is a digital echo/surround processor ic utilizing cmos technology. analog signal inputted to pt2396 is converted to digital signal by a-d converter and then stored into the internal memory. after a certain delay time, this memory-stored digital signal is converted back into analog signal via the d-a converter. a low cost echo system may be achieved with the pt2396's a-d converter, d-a converter, incorporating adm (adaptive delta modulation) algorithm while maintaining lower noise, lower distortion, and higher s/n ratio. pt2396 is functionally compatible with m65831p. if you are replacing m65831p with our pt2396, you must take note that pt2396 does not need to connect an external resistor (30 ohms) to pin 15 and pin 21. features ! cmos technology ! low power consumption ! low noise (-92 dbv typical) ! low distortion (0.5% typical) ! built-in 48 k memory ! automatic reset circuit included ! a-d, d-a converters (adaptive delta modulation), 2 lpfs and 48 k-bit memory ! sleep mode function ! parallel or serial data controlled from micro controller applications ! karaoke ! electronic musical instruments ! vcd, dvd ! radio set
princeton technology corp. tel: 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw digital echo/surround processor ic pt2396 pt2396 v1.2 page 2 written nov. 1998 pin configuration pt2396 order information valid part number package type pt2396 24 pins, dip (600 mil) PT2396-S 24 pins, so (300 mil)
princeton technology corp. tel: 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw digital echo/surround processor ic pt2396 pt2396 v1.2 page 3 written nov. 1998 application circuits pt2396 easy mode application circuit vdd osci osco dl1/req dl2/clk dl3/din dl4/ids test easy/mcu sleep dgnd agnd vcc lpf1in lfp1out op1out opin ref cc1 cc2 op2in op2out lpf2in lpf2out 0.1 +5v + 100 1m 2mhz 100p 100p setting delay tim e sleep sw +5v pt2396 560p 10k 15k 15k + 1 in out 5600p 0.1 0.1 0.1 0.1 + 47 15k 15k 10k 560p 5600p + 1 2.7k 0.01 no te: ag nd : dgnd : +5v 1 non-polar 30k 3k note: 1. every digital gnd must be connected to the analog gnd at one point 2. when replacing m65831 with pt2396, please take note that pt2396 does not need to connect an external resistor (30 ohms) to pin 15 and pin 21.
princeton technology corp. tel: 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw digital echo/surround processor ic pt2396 pt2396 v1.2 page 4 written nov. 1998 pt2396 mcu mode application circuit vdd osci osco dl1/req dl2/clk dl3/din dl4/id s test easy/mcu sleep dgnd agnd vcc lpf1in lfp1out op1out opin ref cc1 cc2 op2in op2out lpf2in lpf2out 0.1 +5v + 100 1m 2mhz 100p 100p mcu sleep sw +5v pt2396 560p 10k 15k 15k + 1 in out 5600p 0.1 0.1 0.1 0.1 + 47 15k 15k 10k 560p 5600p + 1 2.7k 0.01 no te: agnd : dgnd : 1 non-polar 30k 3k 5v note: 1. every digital gnd must be connected to the analog gnd at one point 2. for the dl4/ids pin (pin no. 7), please refer below: ids pin id1 id2 id3 id4 00100 10101
princeton technology corp. tel: 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw digital echo/surround processor ic pt2396 pt2396 v1.2 page 5 written nov. 1998 pt2396 surround application circuit vdd osci osco dl1/req dl2/clk dl3/din dl4/ids test easy/mcu sleep dgnd agnd vcc lpf1in lfp1out op1out opin ref cc1 cc2 op2in op2out lpf2in lpf2out 0.1 +5v + 100 1m 2mhz 100p 100p mcu sleep sw +5v pt2396 560p 10k 15k 15k + 1 in out 5600p 0.1 0.1 0.1 0.1 + 47 15k 15k 10k 560p 5600p + 1 2.7k 0.01 note: agnd : dgnd : +5v note: 1. every digital gnd must be connected to the analog gnd at one point 2. for the dl4/ids pin (pin no. 7), please refer below: ids pin id1 id2 id3 id4 00100 10101
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