Product Summary

The ATA5722 is a multi-chip PLL receiver device supplied in an SSO20 package. The ATA5722 has been specially developed for the demands of RF low-cost data transmission systems with data rates from 1 kBit/s to 10 kBbit/s in Manchester or Bi-phase code. Its main applications are in the areas of keyless entry systems, tire pressure monitoring systems, telemetering, and security technology systems. The ATA5722 can be used in the frequency receiving range of f0 = 312.5 MHz to 317.5 MHz, f0 = 431.5 MHz to 436.5 MHz or f0 = 868 MHz to 870 MHz for ASK or FSK data transmission. All the statements made below refer to 315 MHz, 433 MHz and 868.3 MHz applications.

Parametrics

ATA5722 absolute maximum ratings: (1)Supply voltage VS: 6 V; (2)Power dissipation Ptot: 1000 mW; (3)Junction temperature Tj: 150 °C; (4)Storage temperature Tstg: –55 to +125 °C; (5)Ambient temperature Tamb: –40 to +105 °C; (6)Maximum input level, input matched to 50Ω Pin_max: 10dBm.

Features

ATA5722 features: (1)High Large-signal Capability at GSM Band (Blocking –33 dBm at +10 MHz, IIP3 = –24 dBm at +20 MHz); (2)Logarithmic RSSI Output; (3)XTO Start-up with Negative Resistor of 1.5 kΩ; (4)5V to 20V Automotive Compatible Data Interface; (5)Data Clock Available for Manchester and Bi-phase-coded Signals; (6)Programmable Digital Noise Suppression; (7)Low Power Consumption Due to Configurable Polling; (8)Temperature Range –40°C to +105°C; (9)ESD Protection 2 kV HBM, All Pins; (10)Communication to Microcontroller Possible using a Single Bi-directional Data Line; (11)Low-cost Solution Due to High Integration Level with Minimum External Circuitry Requirements; (12)Supply Voltage Range 4.5V to 5.5V.

Diagrams

ATA5722 pin connection