echo processor ic PT2399 princeton technology corp. tel : 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw PT2399 v1.2 1 updated september 2000 description PT2399 is an echo audio processor ic utilizing cmos technology which is equipped with adc and dac, high sampling frequency and an internal memory of 44k digital processing is used to generate the delay time, it also features an internal vco circuit in the system clock, thereby, making the fre- quency easily adjustable. PT2399 boast of very low distortion (thd<0.5%) and very low noise (no<-90dbv), thus producing high quality audio output. the pin assignments and application circuit are optimized for easy pcb layout and cost saving advantage. features r cmos technology r least external components r auto reset function r low noise, no<-90dbv typical r low distortion, thd<0.5% typical r external adjustable vco r available in 16 pins, dip or so package applications r video tape recorder r video compact disk r television r cd player r car stereo r karaoke mixer r electronic musical instrument r audio equipment with echo processor
echo processor ic PT2399 princeton technology corp. tel : 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw PT2399 v1.2 2 updated september 2000 pin configuration vcc ref agnd dgnd clk _ o vco cc1 cc0 lpf1-in lpf1-out lpf2-out lpf2-in op2-0ut op2-in op1-in op1-out 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PT2399 order information part number package PT2399 16 pins, dip package (300 mil) PT2399s 16 pins, so package (300 mil)
echo processor ic PT2399 princeton technology corp. tel : 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw PT2399 v1.2 3 updated september 2000 PT2399 echo application circuit note: external resistor having a value of 10 k ohms to 50 k ohms may be used. the recommended resistor value ( r ) is 10 k ohms. when the value of the resistor ( r ) increases, the range of the delay time also increases. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 r 20k 0.1uf 0.01uf 10uf 5.6k 560pf 10k 10k 3900pf 15k 4.7uf 4.7uf input 100k 50k 18k 4.7k 10uf output +5v 47uf 0.1uf 100uf 0.082uf 0.082uf 10k 15k 10k 560pf 3300pf agnd dgnd 0.1uf PT2399 + + + + + +
echo processor ic PT2399 princeton technology corp. tel : 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw PT2399 v1.2 4 updated september 2000 PT2399 surround/delay application circuit 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 r 0.1uf 0.01uf 10uf 27 .k 560pf 15k 10k 5600pf 15k 4.7uf input 100k output +5v 47uf 0.1uf 100uf 0.1uf 0.1uf 15k 15k 10k 560pf 5600pf agnd dgnd 0.1uf PT2399 note: please refer to table 1 for the resistor/delay time values
echo processor ic PT2399 princeton technology corp. tel : 886-2-29162151 fax: 886-2-29174598 url: http://www.princeton.com.tw PT2399 v1.2 5 updated september 2000 table 1: resistor/delay time values rk 6 . 7 2k 3 . 1 2k 2 . 7 1k 3 . 4 1k 1 . 2 1k 5 . 0 1k 2 . 9k 2 . 8 k c fm 0 . 2m 5 . 2m 0 . 3m 5 . 3m 0 . 4m 5 . 4m 0 . 5m 5 . 5 d ts m 2 4 3s m 3 7 2s m 8 2 2s m 6 9 1s m 1 7 1s m 1 5 1s m 6 . 6 3 1s m 1 . 4 2 1 d h t% 0 . 1% 8 . 0% 3 6 . 0% 3 5 . 0% 6 4 . 0% 1 4 . 0% 6 3 . 0% 3 3 . 0 rk 2 . 7k 4 . 6k 8 . 5k 4 . 5k 9 . 4k 5 . 4k 4k 4 . 3 k c fm 0 . 6m 5 . 6m 0 . 7m 5 . 7m 0 . 8m 5 . 8m 0 . 9m 0 1 d ts m 7 . 3 1 1s m 3 . 4 0 1s m 1 . 7 9s m 2 . 2 9s m 3 . 6 8s m 1 8s m 9 . 5 7s m 1 . 8 6 d h t% 9 2 . 0% 7 2 . 0% 5 2 . 0% 5 2 . 0% 3 2 . 0% 2 2 . 0% 1 2 . 0% 9 1 . 0 rk 8 . 2k 4 . 2k 2k 7 6 . 1k 7 4 . 1k 8 2 . 1k 8 0 . 14 9 8 k c fm 1 1m 2 1m 3 1m 4 1m 5 1m 6 1m 7 1m 8 1 d ts m 6 . 1 6s m 6 . 6 5s m 3 . 2 5s m 1 . 8 4s m 8 . 5 4s m 3 4s m 6 . 0 4s m 5 . 8 3 d h t% 8 1 . 0% 6 1 . 0% 5 1 . 0% 5 1 . 0% 5 1 . 0% 5 1 . 0% 4 1 . 0% 4 1 . 0 r3 2 79 1 58 8 25 . 0 k c fm 9 1m 0 2m 1 2m 2 2 d ts m 6 . 6 3s m 4 . 4 3s m 6 . 2 3s m 3 . 1 3 d h t% 4 1 . 0% 3 1 . 0% 3 1 . 0% 3 1 . 0 note: r = external resistor (ohms), please refer to PT2399 surround/delay time application circuit fck = clock frequency (hz) td = delay time thd = total harmonic distortion
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