Emperor Peng Technology 25190701010 Wireless Station User Manual Datasheet Search Site http www Laogu com

Shenzhen Emperor Peng Technology Co., Ltd. Wireless Station Datasheet Search Site http www Laogu com

Users Manual

PT4450 PRE1.0 - 1 - August, 2007 DESCRIPTION PT4450 is a high performance ASK/OOK transmitter for the Remote Keyless Entry (RKE) systems. It consists of a SAW oscillator, power amplifier, 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 manual
PT4450 PRE1.0 - 2 - August, 2007 BLOCK DIAGRAM Regulator One ShotPAOutputmatchingnetworkOSCOUT VSS PAOUTDINVDDOSCIN
PT4450 PRE1.0 - 3 - August, 2007 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
PT4450 PRE1.0 - 4 - August, 2007 ABSOLUTE MAXIMUM RATINGS (VSS=0V) Parameter Symbol Rating Unit Supply voltage VDD VSS -0.3 to VSS +6.0 V Operating temperature Topr -40 to +85 ℃ Storage temperature Tstg -65 to +150 ℃ Soldering temperature TSLD 255 ℃ Soldering time tSLD 10 Sec. RECOMMEND OPERATING CONDITIONS (VSS=0V) Rating Parameter Symbol Min. Typ. Max. Unit Supply voltage range VDD 2.2 3.0 3.6 V Operating temperature TA -40 25 85 ℃
PT4450 PRE1.0 - 5 - August, 2007 ELECTRICAL CHARACTERISTICS (Unless otherwise specified, VDD=3.0V, VSS=0V, DIN=3.0V. Temp=27℃, fRF=434MHz) Rating Parameter Symbol Condition Min. Typ. Max. Unit DC Supply voltage VDD 2.2 3.0 3.6 V Operating current (Note) IDD DIN=High(CW mode);POUT=10dBm 16 - 18 mA Standby current Istandby DIN=Low; TDELAY>50ms - - 1 µA RF Frequency range fRF 250 - 500 MHz Power amplifier output power (Note) Pout - +10 - dBm RF power on/off ratio PEXT - 50 - dB Phase noise PNOISE 10KHz offset - -100 - dBc/HzHarmonics (see Note) PHARM 2x/3x fRF - -40 - dBc Data Input and One Shot Data rate DRATE 0.5 2 50 KbpsStart up time TON - - 200 µs One shot delay time TDELAY 50 - - ms Note: Depend on power amplifier output matching.
PT4450 PRE1.0 - 6 - August, 2007 TESTING CIRCUIT Values Component 315MHz Band 434MHz Band Unit S1 (see Note) 315 434 MHz R1 0 0 Ω R2 10K 10K Ω R3 470K 470K Ω 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.
PT4450 PRE1.0 - 7 - August, 2007 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
PT4450 PRE1.0 - 8 - August, 2007 PACKAGE INFORMATION 6 PINS, SOT-23
PT4450 PRE1.0 - 9 - August, 2007
PT4450 PRE1.0 - 10 - August, 2007 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 θ 0° 4° 8° θ1 5° 10° 15° aaa 0.15 bbb 0.20 ccc 0.10 ddd 0.20
PT4450 PRE1.0 - 11 - August, 2007 Notes: 1. Dimension and tolerancing 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. Dimension 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 exclusive 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 maximum material condition. The dambar cannot be located on the lower radius of the foot. Minimum space 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 FCC NOTE : THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TVINTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCHMODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.This device complies with Part 15 of the FCC Rules. Operation is subjectto the following two conditions:1. This device may not cause harmfulinterference, and 2. This device must accept any interference received,including interference that may cause undesired operation

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