ATA3741 Datasheet | Atmel

Features - 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 Supply Voltage 4.5V to 5.5V Operating Temperature Range - 40°C to +105°C Single-ended RF Input for Easy Adaptation 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 2 Different IF Bandwidth Versions are Available (300 k Hz and 600 k Hz) UHF ASK Receiver IC ATA3741 - - - - 1. Description .. The ATA3741 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 (1 k Baud to 3.2 k Baud for FSK) in Manchester or Bi-phase code. The receiver is well-suited to operate with Atmel's PLL RF transmitter U2741B. Its main applications are in the areas of telemetering, security technology, and keyless-entry systems. It can be used in the frequency receiving range of f0 = 300 MHz to 450 MHz for ASK or FSK data transmission. All the statements made below refer to 433.92-MHz and 315-MHz applications. 4899B- RKE- 10/06 Figure 1-1. System Block Diagram UHF ASK/FSK Remote control transmitter U2741B UHF ASK/FSK Remote control receiver 1 Li cell ATR3741 Demod Control PLL Antenna...