ATA5781

Atmel ATA5781/ATA5782/ATA5783 UHF ASK/FSK Receiver SUMMARY DATASHEET 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 –111dBm at 10Kbit/s –114dBm at 5Kbit/s –122.5dBm at 0.75Kbit/s f = ± 20kHz f = ± 10kHz f = ± 5kHz f = ± 0.75kHz BWIF = 80kHz BWIF = 25kHz BWIF = 165kHz BWIF = 165kHz BWIF = 165kHz BWIF = 25kHz ● ASK sensitivity (Manchester coded) at 433.92MHz ● –110.5dBm at 20Kbit/s ● –125dBm at 0.5Kbit/s This is a summary document. The complete document is available under NDA. For more information, please contact your local Atmel sales office. ● ● ● Programmable Rx-IF b...