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tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 1 - april, 2006 remote control encoder ic pt2264 description pt2264 is a remote control encoder paired with pt2294 utilizing cmos technology. it encodes data and address pins into a serial coded waveform suit able for rf modulation. pt2264 has a maximum of 12-bit of tri-state address pins providing up to 531,441 (or 3 12 ) address codes; thereby, drastically reducing any code collision and unauthorized code scanning possibilities. features ? cmos technology ? low power consumption ? very high noise immunity ? up to 12 tri-state code address pins ? up to 4 data pins ? wide range of operating voltage: vcc=8 ~ 15v ? single resistor oscillator ? latch or momentary output type ? available in dip and sop package applications ? remote control fan ? home security/automation system ? remote control toys ? remote control for door bell
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 2 - april, 2006 remote control encoder ic pt2264 block diagram address system timing code generation osc a0 a1 a2 a3 a4 a5 a6 a7 a8/d3 a9/d2 a10/d1 a11/d0 osc1 osc2 /te dout control logic
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 3 - april, 2006 remote control encoder ic pt2264 pin configuration a0 a1 a2 vcc a9/d2 dout a8/d3 osc2 nc a5 a11/d0 a6 a3 osc1 a10/d1 a4 /te 1 20 2 19 318 417 813 10 11 7 14 9 12 615 5 16 pt2264-s a7 vss nc a0 a1 a2 vcc a9/d2 dout a8/d3 osc2 a5 a11/d0 a6 a3 osc1 a10/d1 a4 /te 1 18 217 316 4 15 8 11 7 12 910 613 5 14 pt2264 PT2264-18S a7 vss
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 4 - april, 2006 remote control encoder ic pt2264 pin description pin no. pin name i/o description 18 pins 20 pins a0 ~ a7 i code address pin no.0 ~ 7 these ten tri-state pins are detected by pt2264 to determine the encoded waveform bit 0 ~ bit 9. each pin can be set to ?0?, ?1? or ?f? (floating). 1 ~ 8 1 ~ 8 a8/d3 ~ a11/d0 i code address pin nos.8 ~ 11/data pin no.0 ~ 3. these four tri-state pins are detected by pt2264 to determine the encoded waveform bit 10, bit 11. when these pins are used as address pins, they can be set to ?0?, ?1?, or ?f? (floating). when these pins are used as data pins, they can be set only to ?0? or ?1?. 10 ~ 13 12 ~ 15 /te i transmission enable. active low signal. pt2264 outputs the encoded waveform to dout when this pin is pulled to low. 14 16 osc1 o oscillator pin no.1 15 17 osc2 i oscillator pin no.2 a resistor connected between these two pins determine the fundamental frequency of the pt2264. 16 18 dout o data output pin. the encoded waveform is serially outputted to this pin. when pt2264 is not transmitting, dout outputs low (vss) voltage. 17 19 vcc - positive power supply 18 20 vss - negative power supply 9 9
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 5 - april, 2006 remote control encoder ic pt2264 function description pt2264 encodes the code address and data set at a0 ~ a7 and a8/d3 ~ a11/d0 into a special waveform and outputs it to the dout when /te is pull ed to ?0? (low state). this waveform is fed to either the rf modulator for transmission. the transmitted radio frequency is received by the rf demodulator receiver and reshaped to the specia l waveform. pt2294 is then used to decode the waveform and set the corresponding output pin(s). thus completing a remote control encoding and decoding function. rf operation code bits a code bit is the basic component of the encoded wa veform, and can be classified as either an ad (address/data) bit or a sync (synchronous) bit. address/data (ad) bit waveform an ad bit can be designated as bit ?0?, ?1? or ?f? if it is in low, high or floating state respectively. one bit waveform consists of 2 pulse cycles. each pulse cycle has 16 oscillating time periods. for further details, please refer to the diagram below: 1 bit = 32 4 12 4 osc bit 0 bit 1 bit f floating where: =oscillating clock period synchronous (sync.) bit waveform the synchronous bit waveform is 4-bit long with 1/8 bit width pulse. please refer to the diagram below: 1/8 bit w idth=4 4 bit width=128 note: 1-bit=32
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 6 - april, 2006 remote control encoder ic pt2264 code word a group of code bits is called a code word. a code wo rd consists of 12 ad bi ts followed by one sync bit. the 12 ad bits are determined by the corresponding st ates of a0 ~ a7 and a8/d3 ~ a11/d0 pins at the time of transmission. when data type of pt2264 is used, the address bits will decrease accordingly. for example: in the 4 data type where the addre ss has eight (8) bits, the transmitting format is: 8 address bits 4 data bits sync. bit pt2264/pt2294 have a maximum of twelve (12) addr ess bits, four (4) address/data bits. the following diagram shows the code bi ts with their corresponding pins. first bit transmitted a0 a1 a2 a3 a4 a5 a6 a7 a8/d3 a9/d2 a10/d1 a11/d0 sync bit one complete code word 0 data a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 sync bit 1 data a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 d0 sync bit 2 data a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 d1 d0 sync bit 3 data a0 a1 a2 a3 a4 a5 a6 a7 a8 d2 d1 d0 sync bit 4 data a0 a1 a2 a3 a4 a5 a6 a7 d3 d2 d1 d0 sync bit the code bits a0 ~ a7 and a8/d3 ~ a11/d0 are determined by the states of a0 ~ a7 and a8/d3 ~ a11/d0 pins. for example, when the a0 (pin no. 1) is set to ?1? (vcc), the code bit a0 is synthesized as ?1? bit. in the same manner, when it (a0 pin) is se t to ?0? (vss) or left floating, the code bit a0 is synthesized as a ?0? or ?f? bit respectively.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 7 - april, 2006 remote control encoder ic pt2264 code frame a code frame consists of four (4) continuous code words. when pt2264 detects ?0? on the / te (meaning, the /te is active ?l ow?), it outputs a code frame at dout. if /te is still active at the time the code frame transmission ends, pt2264 outputs another code frame. it should be noted that the code frame is synthesized at the time of transmission. /te dout one frame (=4 word) one frame one frame signal resistor oscillator the built?in oscillator circuitry of pt2264 allows a precision oscillator to be constructed by connecting an external resistor between osc1 and osc2 pi ns. for pt2294 to decode correctly the received waveform, the oscillator frequency of pt2294 must be 2.5 ~ 8 times that of transmitting pt2264. the typical oscillator with various resistor values are shown below for pt2264 and pt2294. 100 10 1 khz 3 6 9 12 15 v o l t a g e r = 510 k r = 1 m r = 2 m r = 3.3 m r = 4.7 m pt2264 encoder osc frequency
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 8 - april, 2006 remote control encoder ic pt2264 pt2294 decoder osc frequency suggested oscillator resistor values are shown below. pt2264 pt2294 1.2m ? 120k ? 1.5m ? 160k ? 3.3m ? 390k ? 0 20 40 60 80 100 120 140 160 180 24681012 voltage (v) frequency (khz) rosc =510k ? rosc=620k ? rosc=1.0m ? rosc=1.2m ? rosc=2.2 m ?
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 9 - april, 2006 remote control encoder ic pt2264 operation flow chart power on stand-by mode /te enable /te still enable 4 words of address/data transmitted ye s ye s ye s no no
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 10 - april, 2006 remote control encoder ic pt2264 absolute maximum ratings parameter symbol condition rating unit supply voltage vcc -0.3 ~ 16.0 v input voltage vi -0.3 ~ vcc+0.3 v output voltage vo -0.3 ~ vcc+0.3 v maximum power dissipation pa vcc=12 v 300 mw operating temperature topr -40 ~ +85 storage temperature tstg -65 ~ +150 dc electrical characteristics parameter symbol conditions min. typ. max. unit supply voltage vcc 8.0 - 15 v stand-by current isb vcc=12v osc2=12v a0 ~ a11 open - 0.1 1 a vcc=8v voh=4v -6 - - ma dout output driving current ioh vcc=12v voh=6v -10 - - ma vcc=8v vol=4v 5 - - ma dout output sinking current iol vcc=12v vol=6v 9 - - ma
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 11 - april, 2006 remote control encoder ic pt2264 application circuit 4 data transmitter circuit is recommended. pin 1~8 address data can be selected by custom?s design. a0 a1 a2 vcc a 9/d2 dout a 8/d3 osc2 a5 a11/d0 a6 a3 osc1 a10/d1 a4 /te 1 18 2 17 3 16 4 15 8 11 7 12 9 10 6 13 5 14 a7 vss rf + - sw0 sw1 12v rosc pt2264 sw3 sw2 2.7k x 4 10k x 4 in4148 x 4 note: suggested oscillator resistor va lues (rosc), please refer to page 7.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 12 - april, 2006 remote control encoder ic pt2264 zero data transmitter circuit is recommended. pin 1~8, pin 10~13 address data can be selected by custom?s design. a0 a1 a2 vcc a9/d2 dout a8/d3 osc2 a5 a11/d0 a6 a3 osc1 a10/d1 a4 /te 1 18 2 17 3 16 4 15 8 11 7 12 9 10 6 13 5 14 a7 vss rf sw vcc pt2264 rosc note: suggested oscillator resistor va lues (rosc), please refer to page 7. zero-stand-by transmitter circuit is recommended. pin 1~8, pin 10~13 address data can be selected by custom?s design. a0 a1 a2 vcc a9/d2 dout a8/d3 osc2 a5 a11/d0 a6 a3 osc1 a10/d1 a4 /te 1 18 2 17 3 16 4 15 8 11 7 12 9 10 6 13 5 14 a7 vss rf sw pt2264 + - 12 v rosc note: suggested oscillator resistor va lues (rosc), please refer to page 7.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 13 - april, 2006 remote control encoder ic pt2264 order information valid part number package type top code pt2264 18 pins, dip, 300mil pt2264 PT2264-18S 18 pins, sop, 300mil PT2264-18S pt2264-s 20 pins, sop, 300mil pt2264-s
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 14 - april, 2006 remote control encoder ic pt2264 package information 18 pins, dip, 300mil
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 15 - april, 2006 remote control encoder ic pt2264 symbol min. nom. max. a 0.210 a1 0.015 a2 0.115 0.130 0.195 b 0.014 0.018 0.022 b1 0.014 0.018 0.020 b2 0.045 0.060 0.070 b3 0.030 0.039 0.045 c 0.008 0.010 0.014 c1 0.008 0.010 0.011 d 0.880 0.900 0.920 d1 0.005 e 0.300 0.310 0.325 e1 0.240 0.250 0.280 e 0.100 bsc. ea 0.300 bsc. eb 0.430 ec 0.000 0.060 l 0.115 0.130 0.150 notes: 1. all dimensions are in inchs. 2. dimensioning and toleranc ing per ansi y14.5m-1982. 3. dimensions ?a?, ?a1? and ?l? are measured with the package seated in jedec seating plane gauge gs-3. 4. ?d?, ?d1? and ?e1? dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.010 inch. 5. ?e? and ?ea? measured with the leads c onstrained to be perpendicular to datum -c-. 6. ?eb? and ?ec? are measured at the l ead tips with the loads unconstrained. 7. ?n? is the number of terminal positions. (n=18) 8. pointed or rounded lead tips ar e preferred to ease insertion. 9. ?b2? and ?b3? maximum dimensions are not in clude dambar protrusions. dambar protrusions shall not exceed 0.010 inch (0.25 mm). 10. distance between leads including dambar protrusions to be 0.005 inch minimum. 11. datum plane -h- coincident with t he bottom of lead, where lead exits body. 12. refer to jedec ms-001 variation ac. jedec is the trademark of jedec so lid state technology association.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 16 - april, 2006 remote control encoder ic pt2264 18 pins, sop, 300mil -b- e h .25 (.010) m b m .25 (.010) m c a m b s a1 a seating plane -c- .10 (.004) -a- d -e- b l h x 45 c n 123 index area symbol min. nom. max. a 2.35 2.65 a1 0.10 0.30 b 0.33 0.51 c 0.23 0.32 d 11.35 11.75 e 7.40 7.60 e 1.27 bsc. h 10.00 10.65 h 0.25 0.75 l 0.40 1.27 0 8
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 17 - april, 2006 remote control encoder ic pt2264 notes: 1. dimensioning and toleranc ing per ansi y14.5m-1982. 2. dimension ?d?does not include mold flash, protru sions or gate burrs. mold flash, protrusion or gate burrs shall not exceed 0.15 mm (0.006 in) per side. 3. dimension ?e? does not include interlead flash or pr otrusions. interlead flash or protrusions shall not exceed 0.25 mm (0.010 in) per side. 4. the chamfer on the body is optional. it is not presen t, a visual index feature must be located within the crosshatched area. 5. ?l? is the length of the terminal for soldering to a substrate. 6. n is the number of the terminal positions (n=18) 7. the lead width ?b? as measured 0.36 mm (0.014 in ) or greater above the seating plane, shall not exceed a maximum value of 0.61 mm (0.24 in). 8. controlling dimension: millimeter. 9. refer to jedec ms-013, variation ab. jedec is the trademark of jedec so lid state technology association.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 18 - april, 2006 remote control encoder ic pt2264 20 pins, sop, 300mil -b- e h .25 (.010) m b m .25 (.010) m c a m b s a1 a seating plane -c- .10 (.004) -a- d -e- b l h x 45 c n 123 index area symbol min. nom. max. a 2.35 2.65 a1 0.10 0.30 b 0.33 0.51 c 0.23 0.32 d 12.60 13.00 e 7.40 7.60 e 1.27 bsc. h 10.00 10.65 h 0.25 0.75 l 0.40 1.27 0 8
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2264 v1.1 - 19 - april, 2006 remote control encoder ic pt2264 notes: 1. dimensioning and toleranc ing per ansi y14.5m-1982. 2. dimension ?d? does not include mold flash, protrusions or gate burrs . mold flash, protrusion or gate burrs shall not exceed 0.15 mm (0.006 in) per side. 3. dimension ?e? does not include interlead flash or pr otrusions. interlead flash or protrusions shall not exceed 0.25 mm (0.010 in) per side. 4. the chamfer on the body is optional. it is not present, a visual index feature must be located within the crosshatched area. 5. ?l? is the length of the terminal for soldering to a substrate. 6. n is the number of the terminal positions (n=20) 7. the lead width ?b? as measured 0.36 mm (0.014 in ) or greater above the seating plane, shall not exceed a maximum value of 0.61 mm (0.24 in). 8. controlling dimension: millimeter. 9. refer to jedec ms-013, variation ac. jedec is the trademark of jedec so lid state technology association.

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