ATA8215-GHQW

The Microchip ATA8215 is a highly integrated, low-power UHF ASK/FSK RF receiver with an integrated AVR microcontroller. The Microchip ATA8215 is partitioned into three sections; an RF front end, a digital baseband and the low-power 8-bit AVR microcontroller. The product is designed for the ISM frequency bands in the ranges of 310MHz to 318MHz, 418MHz to 477MHz and 836MHz to 956MHz. The external part count is kept to a minimum due to the very high level of integration in this device. By combining outstanding RF performance with highly sophisticated baseband signal processing, robust wireless communication can be easily achieved. The receive path uses a low-IF architecture with an integrated double quadrature receiver and digitized IF processing. This results in high image rejection and excellent blocking performance. In addition, highly flexible and configurable baseband signal processing allows the receiver to operate in several scanning, wake-up and automatic self-polling scenarios. For example, during polling the IC can scan for specific message content (IDs) and save valid telegram data in the FIFO buffer for later retrieval. The device integrates two receive paths that enable a parallel search for two telegrams with different modulations, data rates, wake-up conditions, etc. The Microchip ATA8215 implements a flexible service configuration concept and supports up to 15 channels. The channels are grouped into five service configurations with three channels each. Three service configurations are located in the EEPROM. Two service configurations are located in the SRAM to allow on-the-fly modifications during IDLEMode via SPI commands or application software. The application software is located in the Flash for Microchip ATA8210. Highly configurable and autonomous scanning capability enables flexible polling scenarios with up to 15 channels. The configuration of the receiver is stored in a 1024byte EEPROM. The SPI interface enables external control and de

• AVR® microcontroller core with 1Kbyte SRAM and 24Kbyte RF library in firmware (ROM)
• Atmel® ATA8210: 20Kbyte of user Flash
• Atmel ATA8215: No user memory — RF library in firmware only
• Supported frequency ranges
  • Low-band 310MHz to 318MHz, 418MHz to 477MHz
  • High-band 836MHz to 956MHz
  • 315.00MHz/433.92MHz/868.30MHz and 915.00MHz with one 24.305MHz crystal
• Low current consumption
  • 9.8mA for RXMode (Low-band), 1.2mA for 21ms cycle three-channel polling
• Typical OFFMode current of 5nA (maximum 600nA at Vs = 3.6V and T = 85°C)
• Supports the 0dBm class of ARIB STD-T96
• Input 1dB compression point
  • –48dBm (full sensitivity level)
  • –20dBm (active antenna damping)
• Programmable channel frequency with fractional-N PLL
  • 93Hz resolution for Low-band
  • 185Hz resolution for High-band
• FSK deviation ±0.375kHz to ±93kHz
• FSK sensi