ATA5781 Datasheet, PDF (1/20 Pages) ATMEL Corporation – AVR microcontroller core with 1Kbyte SRAM and 24Kbyte RF library in firmware (ROM)

Atmel ATA5781/ATA5782/ATA5783
UHF ASK/FSK Receiver
SUMMARY DATASHEET
This is a summary document.
The complete document is
available under NDA. For more
information, please contact
your local Atmel sales office.
Features
● AVR microcontroller core with 1Kbyte SRAM and 24Kbyte RF library in firmware
(ROM)
● Atmel^® ATA5781: 20Kbyte of user Flash
● Atmel ATA5782: 20Kbyte of user ROM
● Atmel ATA5783: 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
9286BS–RKE–06/13