ATA3745 Datasheet | Atmel

Features - Supply Voltage 4.5V to 5.5V - Operating Temperature Range - 40°C to +85°C - Minimal External Circuitry Requirements, No RF ponents on the PC Board Except - - - - - - - - - - - Matching to the Receiver Antenna High Sensitivity, Especially at Low Data Rates Sensitivity Reduction Possible Even While Receiving Fully Integrated VCO Low Power Consumption Due to Configurable Self-polling with a Programmable Time Frame Check Single-ended RF Input for Easy Matching to λ / 4 Antenna or Printed Antenna on PCB Low-cost Solution Due to High Integration Level ESD Protection According to MIL-STD 883 (4 KV HBM) Except Pin POUT (2 KV HBM) High Image Frequency Suppression Due to 1 MHz IF in Conjunction With a SAW Front-end Filter. Up to 40 d B is Thereby Achievable With Newer SAWs Programmable Output Port for Sensitivity Selection or for Controlling External Periphery munication to the Microcontroller Possible via a Single, Bi-directional Data Line Power Management (Polling) is also Possible by Means of a Separate Pin via the Microcontroller UHF ASK/FSK Receiver ATA3745 .. 1. Description The ATA3745 is a multi-chip PLL receiver device supplied in an SO20 package. It has been specially developed for the demands of RF low-cost data transmission systems with low data rates from 1 k Baud to 10 k Baud in Manchester or Bi-phase code. The receiver is well-suited to operate with Atmel’s PLL RF transmitter ATA2745. It can be used in the frequency receiving range of f0 = 310 MHz to 440 MHz for ASK data transmission. All the statements made below refer to 433.92 MHz and 315 MHz applications. The main applications of the ATA3745 are in the areas of outside temperature metering, socket control, garage door openers, consumption metering, light/fan or air-conditioning control, jalousies, wireless keyboards, and various other consumer market applications. Rev. 4901A- RKE- 11/05 Figure 1-1. System Block Diagram UHF ASK/FSK Remote control transmitter UHF ASK/FSK Remote control receiver...