Description

The T5760/T5761 is a multi-chip PLL receiver device supplied in an SO20 package. It has been especially developed for the demands of RF low-cost data transmission systems with data rates from 1 kBaud to 10 kBaud in Manchester or Bi-phase code. The receiver is well suited to operate with the Atmel Wireless & Microcontrollers’ PLL RF transmitter T5750. Its main applications are in the areas of telemetering, security technology and key less-entry systems. It can be used in the frequency receiving range of f0 = 868 to 870 MHz or f0 = 902 to 928 MHz for ASK or FSK data transmission. All the statements made below refer to 868.3 MHz and 915.0 MHz applications.

Features

? Fully integrated LC-VCO and PLL loop filter

? Very high sensitivity with power matched LNA

? 30 dB image rejection

? High system IIP3 (–16 dBm), system 1-dB compression point (–25 dBm)

? High large-signal capability at GSM band (blocking –30 dBm @ + 20 MHz, IIP3 = –12 dBm @ + 20 MHz)

? 5 V to 20 V automotive compatible data interface

? Data clock available for Manchester- and Bi-phase-coded signals

? Programmable digital noise suppresion

? Receiving bandwidth BIF = 600 kHz for low cost 90-ppm crystals

? Low power consumption due to configurable polling

? Temperature range –40°C to 105°C

? ESD protection 2 kV HBM, 200 V MM

? Communication to μC possible via a single bi-directional data line

? Low-cost solution due to high integration level with minimum external circuitry requirements