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tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 1 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 description the PT4301 is a very low power consumption and high sensitivity single chip ook/ask superheterodyne receiver for the 315mhz and 434mhz frequency bands which offers a high level of integration and requires only a few external components. the PT4301 consists of a low-noise amplifier (lna), an image-rejection mixer, an on-chip phase-lo cked loop (pll) with integrated voltage-controlled oscillator (vco) and loop filter, a 10.7mhz intermediate frequency (i f) limiting amplifier stage with received-signal-strength indicator (rssi), and analog bas eband data recovery circui try (data filter, peak detector, and data slicer). the PT4301 also implem ents a discrete one-step automatic gain control (agc) that reduces the lna gain by 20db when t he rf input signal is gr eater than -60dbm. the PT4301 is available in 24-pin ssop package and is specified over the ex tended temperature range (-40 to +85 o c). features ? low current consumption (5ma fully active mode at 315mhz) ? 2.4 to 5.5v supply voltage operation range ? optimized for 315 or 434mhz ism band ? on-chip image-rejection function ? high dynamic range with on-chip agc ? power down mode with very low supply current (<1 a) ? high sensitivity of -114dbm (2kb/s am 99% square-wave modulation, 315mhz) ? low external parts count ? 24-pin ssop package applications ? remote keyless entry (rke) systems ? remote control systems including garage door and gate openers ? alarm and security systems ? wireless sensors
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 2 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 block diagram lna data filter crystal oscillator 1 2 3 4 5 6 7 ce agc vddif lnain lnaout vssmix vdd5 pdout opp xin xout regulator 8 9 10 11 24 23 22 20 18 17 15 14 13 12 vssna vddrf mixin mixout vssdig vdddig limin rssi limiter with rssi agcdis dfo dffb peak detector pll loop filter vco lo buffer 0 o 90 o i q data slicer dsn data 21 19 16 dsp liminb bias
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 3 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 pin configuration
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 4 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 pin description pin name i/o description pin no. xout o crystal oscillator output 1 vddif p power supply for if portion 2 lnain i lna input 3 vsslna g ground for lna 4 lnaout o lna output 5 vddrf p power supply for rf portion 6 mixin i mixer input 7 vssmix g ground for image-rejection mixer 8 mixout o mixer output 9 vssdig g ground for lo and digital portions 10 vdddig p power supply for lo and digital portions 11 agcdis i agc control pin pull high (connect to vdd5) to disable agc 12 limin i limiting amplifier input 13 liminb i limiter amplifier de-coupling input 14 dfo o data filter output 15 dsn i negative data slicer input 16 opp i non-inverting op-amp input for sallen-key data filter 17 dffb i/o data filter feedback node 18 dsp i positive data slicer input 19 vdd5 p 5v supply voltage 20 data o data output 21 pdout o peak detector output 22 ce i chip enable pin pull high (connect to vdd5) to power on the chip 23 xin i crystal oscillator input 24
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 5 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 absolute maximum ratings v ss =0v parameter symbol rating unit supply voltage range v dd v ss - 0.3 to v ss + 6.0 v operating temperature range t opr -40 to +85 o c storage temperature range t stg -55 to 125 o c soldering temperature t sld 225 o c soldering time t stg 10 s recommended operating conditions v ss =0v value parameter symbol min. typ. max. unit supply voltage range v dd5 2.4 5.0 5.5 v operating temperature t a -40 27 +85 o c
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 6 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 electrical characteristics (unless otherwise specified, vdd = 5.0v, vss= 0v, ce = high, temp = 27c) value parameter symbol condition min. typ. max. unit general characteristics frequency range f rf 250 - 500 mhz maximum receiver input level p rf, max -25 -20 - dbm ask b , peak power level@315mhz - -114 -112 dbm ook, peak power level@315mhz - -108 -106 dbm ask, peak power level@434mhz - -112 -110 dbm sensitivity a s in ook, peak power level@434mhz - -106 -104 dbm data rate c - 2 50 kb/s image rejection ratio imr 25 35 - db lo leakage l lo measured at rf input - - -80 dbm system start-up time t start-up rf input power=-60dbm - - 10 ms power supply supply voltage v dd connect the supply voltage to vdd5 pin only 2.4 5.0 5.5 v ce=high @315mhz - 5.0 5.5 ma consumption dc current i dd ce=high @434mhz - 5.3 5.9 ma standby dc current i stand-by ce=low - - 1.0 a lna matched to 50 ? @315mhz 13 16 20 db power gain g lna matched to 50 ? @434mhz 12 15 18 db noise figure nf lna matched to 50 ? 3 3.6 db input third-order intermodulation intercept point iip3 lna matched to 50 ? -20 - dbm auto gain control (agc) d agc hysteresis h agc - 6 - db lna voltage gain reduction g red - 20 30 db agc delay time dy agc t ref =1/f ref - 2 20 t ref - s down-conversion mixer @315mhz 15 18 22 db conversion voltage gain g mix @434mhz 12 15 18 db input third-order intermodulation intercept point iip3 mix -18 - - dbm output impedance z out,mix - 330 - ?
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 7 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 value parameter symbol condition min. typ. max. unit pll reference frequency f ref 6 - 16 mhz vco frequency range f vco 220 - 550 mhz limiter amplifier and rssi if frequency f if - 10.7 - mhz input impedance z in,lim - 330 - ? rssi dynamic range dr rssi - 80 - db rssi gain sl rssi - 13 - mv/db notes: a. ber=1e-3, data rate=2kb/s b. am 99% square-wave modulation c. the selection of data rate depends upon the component values use for the dat a filter, peak detector, and slicer. d. agc hysteresis and lna gain reduction depend upon the gain setting and matching circuits of the lna. the agc delay time depends upon the pll reference frequency. e. the bandwidth of the data filter is determined by the external components.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 8 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 application circuit xout 1 vddif 2 lnain 3 vsslna 4 lnaout 5 vddrf 6 mixin 7 vssmix 8 mixout 9 vssdig 10 vdddig 11 agcdis 12 limin 13 liminb 14 dfo 15 dsn 16 opp 17 dffb 18 dsp 19 vdd5 20 data 21 pdout 22 ce 23 xin 24 PT4301 x1 vdd vdd vdd c1 c2 c3 c4 l1 c5 c6 c7 l2 r1 f1 c8 c9 c10 r2 c11 c12 r5 r4 c14 c15 vddrf c13 r3 u1
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 9 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 bill of materials value component 315mhz 433.92mhz unit r1, r4 10 10 ? r2 5.6k 5.6k ? r3 15k 15k ? r5 220k 220k ? l1 68n 39n h l2 47n 22n h c1 a 100n 100n f c2 10p 10p f c3 - - f c4 1.5p 1.2p f c5 - - f c6 100p 100p f c7, c12 100n 100n f c8 1.5n 1.5n f c9 1 1 f c10 220p 220p f c11 1.2n 1.2n f c13 1 1 f c14, c15 39p 39p f f1 b 10.7m 10.7m hz x1 9.509m 13.226m hz u1 PT4301 ic - notes: a. c1 could be separated into three de-coupling capacitors and connect them against the three vdd pins as close as possible. b. f1 is the 10.7mhz ceramic filter. the re commended part number is murata sfela10m7ha00-b0.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 10 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 test board layout example of test board layout
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 11 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 order information valid part number package type top code PT4301-x (l) 24 pins, ssop, 150 mil PT4301-x notes: 1. (l) means lead free. 2. the lead free mark is placed in-front of the date code.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 12 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 package information 24 pins, ssop, 150mil
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 13 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 14 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 symbol min. nom. max. a 0.053 - 0.069 a1 0.004 - 0.010 a2 0.049 - 0.065 b 0.008 - 0.012 b1 0.008 0.010 0.011 c 0.006 - 0.010 c1 0.006 0.008 0.009 d 0.341 bsc e 0.236 bsc e1 0.154 bsc e 0.025 bsc l 0.016 - 0.050 l1 0.041 ref l2 0.010 bsc r 0.003 - - r1 0.003 - - 0 - 8 1 5 - 15 2 0 - - aaa 0.004 bbb 0.008 ccc 0.004 ddd 0.007 eee 0.004
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4301 pre1.0 - 15 - january, 2008 low power high sensitivity 315/434 mhz ook/ask superheterodyne receiver preliminary PT4301 notes: 1. dimensioning and toleranci ng per ansi y14.5m-1982. 2. dimensions in inches (angles in degrees) 3. dimension d does not include mold flash, protrusions or gate burrs. mold flash, protrusions or gate burrs shall not ex ceed 0.006? per end. dimension e1 does not include interlead flash or protrusions. interl ead flash or protrusions shall not exceed ?0.006? per side. d1 and e1 dimens ions are determined at dutum h. 4. the package top may be smaller than t he package bottom. dimensions d and e1 are determined at the outermost extrem es of the plastic body exclus ive of mold flash, tie bar burrs, gate burrs and interlead flash, but including any mismatch between the top and bottom of the plastic. 5. datums a and b to be determined at datum h. 6. n is the maximum number of terminal position. (n=24) 7. the dimensions apply to the flat section of the lead between 0.004 to 0.010 inches from the lead tip. 8. dimension b does not include dambar protrusi on. allowable dambar protrusion shall be 0.004? total in excess of b dimension at maximum material condition. the dambar can not be located on the lower radius of the foot. 9. refer to jedec mo-137 variation bc. jedec is the registered trademark of jedec solid state technology association

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