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tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 1 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 description PT4450 is a high performance ask/ook transmitter for the remote keyless entry (rke) systems. it consists of a saw oscillator, power amplif ier, and one-shot circuit which control the saw oscillator and power amplifier. features ? highly integrated ask/ook transmitter ? high output power, 3v/+10dbm/18ma ? low supply voltage (2.2v to 3.6v operation range) ? low external component cost. ? saw-based oscillator, frequency range from 250mhz to 500mhz ? on-chip one-shot circuit ? 50db rf on/off ratio ? available in 6 pins, sot-23 package applications ? keyless entry systems ? remote control systems ? garage door openers ? alarm systems ? security systems ? wireless sensors http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 2 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 block diagram regulator one shot pa output matching network oscout vss paout din vdd oscin http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 3 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 pin configuration pin description pin name i/o description pin no. oscout o oscillator output 1 vss g ground connection 2 paout o power amplifier output 3 din i data input, it will also be used to enable the chip 4 vdd p power supply 5 oscin i oscillator input 6 die pad diagram http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 4 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 absolute maximum ratings (v ss =0v) parameter symbol rating unit supply voltage v dd v ss -0.3 to v ss +6.0 v operating temperatur e topr -40 to +85 storage temperature tstg -65 to +150 soldering temperature t sld 255 soldering time t sld 10 sec. recommend operating conditions (v ss =0v) rating parameter symbol min. typ. max. unit supply voltage range v dd 2.2 3.0 3.6 v operating temperature t a -40 25 85 http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 5 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 electrical characteristics (unless otherwise specified, v dd =3.0v, v ss =0v, din=3.0v. temp=27 , f rf =434mhz ) rating parameter symbol condition min. typ. max. unit dc supply voltage v dd 2.2 3.0 3.6 v operating current (note) i dd din=high(cw mode); p out =10dbm 16 - 18 ma standby current i standby din=low; t delay >50ms - - 1 a rf frequency range f rf 250 - 500 mhz power amplifier output power (note) p out - +10 - dbm rf power on/off ratio p ext - 50 - db phase noise p noise 10khz offset - -100 - dbc/hz harmonics (see note) p harm 2x/3x f rf - -40 - dbc data input and one shot data rate d rate 0.5 2 50 kbps start up time t on - - 200 s one shot delay time t delay 50 - - ms note: depend on power amplifier output matching. http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 6 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 testing circuit values component 315mhz band 434mhz band unit s1 (see note) 315 434 mhz r1 0 0 ? r2 10k 10k ? r3 470k 470k ? l1 180n 180n h l2 27n 27n h c1 220p 220p f c2 12p 4.7p f c3 22p 12p f c4, c5 100n 100n f note: s1 is a saw resonator. http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 7 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 order information valid part number package type top code PT4450 (l) 6 pins, sot-23 PT4450 notes: 1. (l), (c) or (s) = lead free 2. the lead free mark is put in front of the date code http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 8 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 package information 6 pins, sot-23 http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 9 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 10 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 symbol min. typ. max. a - - 1.45 a1 0 - 0.15 a2 0.90 1.15 1.30 b 0.30 - 0.50 b1 0.30 0.40 0.45 c 0.08 - 0.22 c1 0.08 0.13 0.20 d 2.90 bsc. e 2.80 bsc. e1 1.60 bsc. e 0.95 bsc. e1 1.90 bsc. l 0.30 0.45 0.60 l1 0.60 ref. l2 0.25 bsc. r 0.10 - - r1 0.10 - 0.25 0 4 8 1 5 10 15 aaa 0.15 bbb 0.20 ccc 0.10 ddd 0.20 http://www..net/ datasheet pdf - http://www..net/
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw PT4450 pre1.0 - 11 - august, 2007 saw-based ask/ook transmitter ic preliminary PT4450 notes: 1. dimension and toleranci ng per asme y14.5m-1994. 2. dimension in millimeters. 3. dimension d does not include mold flash, protrusion or gate burrs. mold flash, protrusions or gate burrs shall not exceed 0.25mm per end. dimensi on e1 does not include interlead flash or protrusion. interlead flash or protrusion shall not exceed 0.25mm per side. d and e1 dimensions are determined at datum h. 4. the package top may be smaller than the package bottom. dimensions d and e1 are determined at the outermost extremes of the plastic body excl usive of mold flash, tie bar burrs, gate burrs and interlead flash, but including any mismatch between the top and bottom of the plastic body. d and e1 dimensions are determined at datum h. 5. datums a & b to be determined at datum h. 6. these dimensions apply to the flat section of the lead between 0.08mm and 0.15mm from the lead tip. 7. dimension ?b? does not include dambar protrusion. allowable dambar protrusion shall be 0.08mm total in exceed of the ?b? dimension at maximu m material condition. the dambar cannot be located on the lower radius of the foot. minimum s pace between protrusion and an adjacent lead shall not be less than 0.07mm. 8. details of the pin 1 identifier are optional, but must be located within the zone indicated. 9. refer to jedec mo-178 variation ab jedec is the trademark of jedec solid state technology association http://www..net/ datasheet pdf - http://www..net/

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