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Car audio systems and stereo equipment, amplifiers, speakers, subwoofers, cd changer, mp3 player - Pioneer, Alpine, Sony, Kenwood, Clarion, JVC - service manuals and repair guides

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File name:MAX1472.pdf
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Model:cdr 2005 vdo 🔎
Descr:help i need a calc for my opel cdr 2005vdo audio system lost the code
Group:Electronics > Automobile > Car Audio
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File name MAX1472.pdf

19-2872; Rev 1; 4/05 300MHz-to-450MHz Low-Power, Crystal-Based ASK Transmitter General Description The MAX1472 is a crystal-referenced phase-locked loop (PLL) VHF/UHF transmitter designed to transmit OOK/ASK data in the 300MHz to 450MHz frequency range. The MAX1472 supports data rates up to 100kbps, and adjustable output power to more than +10dBm into a 50 load. The crystal-based architecture of the MAX1472 eliminates many of the common problems with SAW transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. Combined, these improvements enable better overall receiver performance when using a superheterodyne receiver such as the MAX1470 or MAX1473. The MAX1472 is available in a 3mm x 3mm 8-pin SOT23 package and is specified for the automotive (-40C to +125C) temperature range. An evaluation kit is available. Contact Maxim Integrated Products for more information. Features 2.1V to 3.6V Single-Supply Operation Low 5.3mA Operating Supply Current* Supports ASK with 90dB Modulation Depth Output Power Adjustable to More than +10dBm Uses Small Low-Cost Crystal Small 3mm 3mm 8-Pin SOT23 Package Fast-On Oscillator 220s Startup Time MAX1472 *At 50% duty cycle (315MHz, 2.7V supply, +10dBm output power) Applications Remote Keyless Entry RF Remote Controls Tire Pressure Monitoring Security Systems Radio-Controlled Toys Wireless Game Consoles Wireless Computer Peripherals Wireless Sensors PART MAX1472AKA-T Ordering Information TEMP RANGE -40C to +125C PINPACKAGE 8 SOT23-8 TOP MARK AEKS Typical Application Circuit TOP VIEW 1 XTAL1 XTAL2 8 3.0V Pin Configuration * 2 GND MAX1472 VDD 7 50 ANTENNA 220pF 680pF XTAL1 1 GND 2 8 7 XTAL2 VDD DATA ENABLE 3 PAGND DATA 6 DATA INPUT MAX1472 PAGND 3 6 5 PAOUT 4 STANDBY OR POWER-UP 4 PAOUT ENABLE 5 SOT23 *Optional power adjust resistor. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at 300MHz-to-450MHz Low-Power, Crystal-Based ASK Transmitter MAX1472 ABSOLUTE MAXIMUM RATINGS VDD to GND ...-0.3V to +4.0V All Other Pins to GND ...-0.3V to (VDD + 0.3V) Continuous Power Dissipation (TA = +70C) 8-Pin SOT23 (derate 8.9mW/C above +70C)...714mW Operating Temperature Range ...-40C to +125C Storage Temperature Range ...-60C to +150C Lead Temperature (soldering, 10s) ...+300C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the

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