Features
● AVR® microcontroller core with 1Kbyte SRAM and 24Kbyte RF library in firmware
(ROM)
● Atmel® ATA5782: 20Kbyte of user flash
● Atmel ATA5783: 20Kbyte of user ROM
● Atmel ATA5781: 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 sensitivity (Manchester coded) at 433.92MHz
● –108.5dBm at 20Kbit/s f = ± 20kHz BWIF = 165kHz
● –111dBm at 10Kbit/s f = ± 10kHz BWIF = 165kHz
● –114dBm at 5Kbit/s f = ± 5kHz BWIF = 165kHz
● –122.5dBm at 0.75Kbit/s f = ± 0.75kHz BWIF = 25kHz
● ASK sensitivity (Manchester coded) at 433.92MHz
● –110.5dBm at 20Kbit/s BWIF = 80kHz
● –125dBm at 0.5Kbit/s BWIF = 25kHz
● Programmable Rx-IF bandwidth 25kHz to 366kHz (approximately 10% steps)
● Blocking (BWIF = 165kHz): 64dBc at frequency offset = 1MHz and 48dBc at 225kHz
● High image rejection: 55dB at 315MHz/433.92MHz and 47dB at 868.3MHz/915MHz
without calibration
● Supported data rate in buffered mode 0.5Kbit/s to 80Kbit/s (120Kbit/s NRZ)
● Supports pattern-based wake-up and start of frame identification
● Flexible service configuration concept with on-the-fly (OTF) modification (in IDLEMode) of SRAM service parameters
(data rate, …)
● Each service consists of
● One service-specific configuration part
● Three channel-specific configuration parts
● Three service configurations are located in EEPROM
● Two service configurations are located in SRAM and can be modified via SPI or embedded application
software
● Digital RSSI with very high relative accuracy of ±1dB thanks to digitized IF processing
● Programmable clock output derived from crystal frequency
● 1024byte EEPROM data memory for receiver configuration
● SPI interface for Rx data access and receiver configuration
● 500Kbit SPI data rate for short periods on SPI bus and host controller
● On demand services (SPI or API) without polling or telegram reception
● Integrated temperature sensor
● Self check and calibration with temperature measurement
● Configurable EVENT signal indicates the status of the IC to an external microcontroller
● Automatic low-power channel polling
● Flexible polling configuration concerning timing, order and participating channels
● Fast reaction time
● Power-up (typical 1.5ms, OFFMode -> RXMode)
● Supports mixed ASK/FSK telegrams
● Non-byte aligned data reception
● Software customization
● Antenna diversity with external switch via GPIO control
● Antenna diversity with internal SPDT switch
● Supply voltage ranges 1.9V to 3.6V and 2.4V to 5.5V
● Temperature range –40°C to +105°C
● ESD protection at all pins (±4kV HBM, ±200V MM, ±750V FCDM)
● Small 55mm QFN32 package/pitch 0.5mm
● Backward package and pin-to-pin compatibility with Atmel® ATA5780N
● Backward RF matching compatibility with Atmel ATA5780N (RF redesign not needed)
● Suitable for applications governed by EN 300 220 and FCC part 15, title 47