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features complete uhf transmitter frequency range 300mhz to 450mhz ask modulation output power to 10dbm low external part count low voltage operation (down to 2.0v) 2 24 maximum address and data codes data active: d0~d4 applications burglar alarm system smoke and fire alarm system garage door controllers car door controllers security systems cordless telephones other remote control systems general description the ht6p20x2t3 is a cmos lsi encoder designed for remote control system applications. it encodes 24 bits of information and then serially transmits it via the paout pin upon receipt of transmission enable (data pins: d0~d4) signals. in addition, the device offers various packaging for flexible combination of address/data so as to meet the needs of various applications. its address/data is transmitted together with the anti-code bits using an rf transmission medium upon receipt of a trigger signal. the device is a high performance, easy to use, single chip ask transmitter ic for remote wireless applications in the 300 to 450mhz frequency band. this transmitter ic is a true data-in, antenna-out monolithic device and offers high performance in terms of power delivery and operating temperature. regarding power, the device is capable of delivering up to 10 dbm into a 50 load, which enables a small form factor transmitter to operate near the maximum limit of transmission regulations. as for temperature, the device can operate from 40 cto85 c whose range is wider than saw operation range. being easy to use, the device only needs a reference frequency (rf carrier frequency divided by 32 times) generated from a crystal with a few additional external parts to create a complete versatile transmitter. the device operates with ask/ook (amplitude shift keying/on-off keyed) uhf receiver types from wide-band super-regenerative radios to narrow-band, high performance super-heterodyne receivers. HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 1 september 13, 2010
selection table part no. vdd addr. no. data no. trig. frequency band rf type package HT6P20B2T3 2.0v~3.6v 22 2 data 300mhz~450mhz ask tx 16nsop ht6p20d2t3 2.0v~3.6v 20 4 data 300mhz~450mhz ask tx 16nsop ht6p20f2t3 2.0v~3.6v 19 5 data 300mhz~450mhz ask tx 16nsop block diagram note: address/data setups are available in various combinations, for details refer to the functional description. pin assignment HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 2 september 13, 2010

! " # $ % $ # & $ ' ' " ( & " $ ! ) " # ( $ # * ( " ( + , # ( $ # - # ! * ! " # $ . - - / 0 1 1 $ , # ) ( , $ 2 " 3 , $ * / * $ " 4 , $ * - ! 5 * 3 * 6
pin description pin name i/o internal connection description nc no connection for HT6P20B2T3/ht6p20d2t3 d0~d1 i cmos in pull-high data input and transmission enable - active low. can be externally set to vss or left open. d2~d3 i cmos in pull-high data input and transmission enable - active low. can be externally set to vss or left open for the ht6p20d2t3. d4 i cmos in pull-high data input and transmission enable - active low. can be externally set to vss or left open for the ht6p20f2t3. en i rf enable pin rf enable - active high; when set low, the rf is enabled by the data input. vdd positive power supply avdd rf positive power supply vss negative power supply, ground avss rf negative power supply, ground paout o power amplify output l/c matching circuit xin o crystal fs input crystal value is 9.84375mhz at 315mhz and 13.56mhz at 433.92mhz xout i crystal fs output dout o cmos out data serial transmission output approximate internal connection circuits absolute maximum ratings supply voltage ..............................................................................................v ss 0.3v to v ss +3.6v storage temperature ................................................................................................. 50 cto125 c input voltage .................................................................................................v ss 0.3v to v dd +0.3v operating temperature................................................................................................ 40 cto85 c note: these are stress ratings only. stresses exceeding the range specified under absolute maximum rat - ings may cause substantial damage to the device. functional operation of this device at other condi - tions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 3 september 13, 2010 7 * " ( * " (
electrical characteristics ta=25 c symbol parameter test conditions min. typ. max. unit v dd conditions v dd operating voltage 2 3.6 v v ih h input voltage 0.8v dd v dd v v il l input voltage 0 0.2v dd v t dw bit time width 3.0v 1.2 ms ta=25 c, freq. x tal osc=13.560mhz, en=vdd. bold values indicate 20 cto+70 c unless otherwise noted. 1kbps data rate 50% duty cycle. rl 50 load (matched). symbol parameter test conditions min. typ. max. unit v dd conditions i i data high current 3v @315mhz, pout=+10dbm, @433.92mhz 12.5 ma i o data low current 3v @315mhz, 433.92mhz 3.0 ma i stb en low & din low current 3v 1 a rf and crystal output power level 3.5v @315mhz 9 dbm @433.92mhz 9 dbm harmonics output for 315mhz 3v @630mhz, 2nd harm 48 dbc @945mhz, 3rd harm 60 dbc harmonics output for 433.92mhz 3v @867.84mhz, 2nd harm 45 dbc @1301.76mhz, 3rd harm 55 dbc extinction ratio for ask 10kbps 3v 70 dbc data rate 3v 10 kbps occupied bandwidth 3v @315mhz <700 khz @433.92mhz <1000 khz 315mhz single side band phase noise 3v @100khz from carrier 78 dbc/hz @1000khz from carrier 77 dbc/hz 433.92mhz single side band phase noise 3v @100khz from carrier 78 dbc/hz @1000khz from carrier 76 dbc/hz xtlin, xtlout 3v pin capacitance 2 pf external capacitance 3v see application circuit c3, c4 @315mhz @433.92mhz 15 18 pf output blanking 3v standby transition from low to high 500 s HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 4 september 13, 2010
symbol parameter test conditions min. typ. max. unit v dd conditions ask to rf out response time 3v delta between ask input transition from low to high to rf output transition from low to high 1 s cref clock output frequency 3v @315mhz (f osc =9.84mhz) 150 hz @433.92mhz (f osc =13.56mhz) 207 hz functional description normal operation the devices encode and transmits address/data to a decoder upon receipt of a trigger signal. the address codes of the device are always transmitted as long as power (vdd) is supplied. the transmission function of the device is enabled by the d0~d1 pins (active low). the following diagram shows the transmission timing: a complete code word of the ht6p20d2t3 consists of 3 periods as shown below. the device detects the logic state of the internal programmed address and the external data pins, and then transmits the detected information during the code period. each address/data bit can be set to one of the following two logic states: HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 5 september 13, 2010 ( ! # 1 , $ 8 * * 9 # $ 1 * 7 * * : * * 9 # $ 1 transmission timing ( " ; ! # 1 , * < , $ " # 1 . * + " 0 * < " # * < , $ " # 1 . * ! # ! = 0 1 1 $ , * ! # 1 , * < , $ " # 1 * 1 * ! # 1 , * < , $ " # 1 * > * + " . 7 ? * * ! # ! = 0 . 7 ? * * ! # ! = 0 6 # ! * ! # ! = a complete code word for the ht6p20d2t3 @ * ( , @ @ a , $ # @ 6 # ! * 1 1 $ , > * + " . b 0
code word a group of code bits is called a code word. a code word consists of one synchronous bit followed by address/data bits. refer to the diagram below: HT6P20B2T3 synchronous bit a0~a21 d1~d0 0101 ht6p20d2t3 synchronous bit a0~a19 d3~d0 0101 ht6p20f2t3 synchronous bit a0~a18 d4~d0 0101 timing diagram v dd vs. t dw v dd t dw (ms) 2.0 1.37 2.2 1.26 2.4 1.18 2.6 1.12 2.8 1.07 3.0 1.02 3.2 0.98 3.4 0.95 3.6 0.91 HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 6 september 13, 2010 500us > 300ms~ 500ms 500us 300ms~ 500ms en dout pll 10kbps 315mhz, 433mhz paout 300ms~ 500ms ht6p20x2t3 power input ( v dd ) 0.0 0.5 1.0 1.5 2.0 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 4.0 v dd (voltage) t dw (msec)
flowchart for ht6p20d2t3 HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 7 september 13, 2010 power on standby mode pll enable d0 = 0 or d1 = 0 or d2 = 0 or d3 = 0 din: address/data words & pa_out: modulated wave transmitted d0 = 0 or d1 = 0 or d2 = 0 or d3 = 0 din: address/data words & pa_out: modulated wave transmitted continuously delay 300~500ms n y y n n y en=1 y n pll off
application circuits ht6p20d2t3_315(433)mhz tx this part can be omitted if harmonic noise can be ignored. note: the values contained within brackets are for the 433.92mhz case. for example, for the 433.92mhz application, the crystal y1 is 13.56mhz application circuit for 315m/433.92mhz tx HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 8 september 13, 2010
package information 16-pin nsop (150mil) outline dimensions ms-012 symbol dimensions in inch min. nom. max. a 0.228 0.244 b 0.150 0.157 c 0.012 0.020 c 0.386 0.402 d 0.069 e 0.050 f 0.004 0.010 g 0.016 0.050 h 0.007 0.010
08 symbol dimensions in mm min. nom. max. a 5.79 6.20 b 3.81 3.99 c 0.30 0.51 c 9.80 10.21 d 1.75 e 1.27 f 0.10 0.25 g 0.41 1.27 h 0.18 0.25
08 HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 9 september 13, 2010 c
reel dimensions sop 16n (150mil) symbol description dimensions in mm a reel outer diameter 330.01.0 b reel inner diameter 100.01.5 c spindle hole diameter 13.0 +0.5/-0.2 d key slit width 2.00.5 t1 space between flange 16.8 +0.3/-0.2 t2 reel thickness 22.20.2 HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 10 september 13, 2010
carrier tape dimensions sop 16n (150mil) symbol description dimensions in mm w carrier tape width 16.00.3 p cavity pitch 8.00.1 e perforation position 1.750.1 f cavity to perforation (width direction) 7.50.1 d perforation diameter 1.55 +0.10/-0.00 d1 cavity hole diameter 1.50 +0.25/-0.00 p0 perforation pitch 4.00.1 p1 cavity to perforation (length direction) 2.00.1 a0 cavity length 6.50.1 b0 cavity width 10.30.1 k0 cavity depth 2.10.1 t carrier tape thickness 0.300.05 c cover tape width 13.30.1 HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 11 september 13, 2010 b d * < ! = & , * < " ( * * ( 1 * 5 , * $ , , * 5 # , $ , * # ! , 1 * # ( * 5 , * ' , * " 1 , e % , , * # ,
HT6P20B2T3/d2t3/f2t3 2 24 encoder with ask transmitter rev. 1.00 12 september 13, 2010 holtek semiconductor inc. (headquarters) no.3, creation rd. ii, science park, hsinchu, taiwan tel: 886-3-563-1999 fax: 886-3-563-1189 http://www.holtek.com.tw holtek semiconductor inc. (taipei sales office) 4f-2, no. 3-2, yuanqu st., nankang software park, taipei 115, taiwan tel: 886-2-2655-7070 fax: 886-2-2655-7373 fax: 886-2-2655-7383 (international sales hotline) holtek semiconductor inc. (shenzhen sales office) 5f, unit a, productivity building, no.5 gaoxin m 2nd road, nanshan district, shenzhen, china 518057 tel: 86-755-8616-9908, 86-755-8616-9308 fax: 86-755-8616-9722 holtek semiconductor (usa), inc. (north america sales office) 46729 fremont blvd., fremont, ca 94538 tel: 1-510-252-9880 fax: 1-510-252-9885 http://www.holtek.com copyright 2010 by holtek semiconductor inc. the information appearing in this data sheet is believed to be accurate at the time of publication. however, holtek as - sumes no responsibility arising from the use of the specifications described. the applications mentioned herein are used solely for the purpose of illustration and holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. holtek s products are not authorized for use as critical components in life support devices or systems. holtek reserves the right to alter its products without prior notification. for the most up-to-date information, please visit our web site at http://www.holtek.com.tw.

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