opertaional description

FCC ID: GQ4-53T

Operational Description

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FCCID_1941190

TRW Automotive May 21, 2012 TEE 24175 Research Dr. Farmington Hills, MI 48335-2642 Tel 248.478.7210 Fax 248.699.4241 RE: Certification for Chrysler FOBik1 RKE Transmitter FCC ID: GQ4-53T Canada IC: 1470A-34T Description of Circuit Operation The NXP PCF 7961 is an integrated microprocessor and UHF transmitter. The switch inputs wake up the micro and the micro takes appropriate action depending on the switches status. If a switch is determined pressed the micro enables the crystal oscillator and after a settling time the PLL. The microprocessor will then send 112 bit packets of ASK data at 2.4 kbps every 125 ms until a minimum of 5 packets have been sent and the switch has been released. After a transmission ends the microprocessor will disable the PLL and Crystal and go into a low power state. Legal name here


Document Created: 2012-08-09 14:02:15
Document Modified: 2012-08-09 14:02:15
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