ATA5743 Datasheet | Atmel

Features - - - - - - - - - - - - - Two Different IF Receiving Bandwidth Versions are Available (BIF = 300 k Hz or 600 k Hz) 5V to 20V Automotive-patible Data Interface IC Condition Indicator, Sleep or Active Mode Data Clock Available for Manchester- and Bi-phase-coded Signals Fully Integrated VCO 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 ESD Protection According to MIL-STD. 883 (2KV HBM) High Image Frequency Suppression Due to 1 MHz IF in Conjunction with a SAW Front-end Filter; Up to 40 d B is Achievable with State-of-the-art SAWs munication to Microcontroller Possible Via a Single, Bi-directional Data Line Power Management (Polling) is also Possible by Means of a Separate Pin Via the Microcontroller Programmable Digital Noise Suppression SSO20 Package UHF ASK/FSK Receiver ATA5743 Benefits - Low Power Consumption Due to Configurable Self Polling with a Programmable Time frame Check - High Sensitivity, Especially at Low Data Rates - Minimal External Circuitry Requirements, no RF ponents on the PC Board Except Matching to the Receiver Antenna - Sensitivity Reduction Possible Even While Receiving .. - Low-cost Solution Due to High Integration Level 1. Description The ATA5743 is a multi-chip PLL receiver device supplied in an SSO20 package. It has been especially developed for the demands of RF low-cost data transmission systems with 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 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. Rev. 4839B- RKE- 08/05 2. System Block Diagram Figure 2-1. System Block Diagram UHF ASK/FSK...