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ATA5428-PLUW Datasheet(PDF) 1 Page - ATMEL Corporation |
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ATA5428-PLUW Datasheet(HTML) 1 Page - ATMEL Corporation |
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1 / 97 page  Features • Multi Channel Half-duplex Transceiver with Approximately ±2.5 MHz Programmable Tuning Range • High FSK Sensitivity: –106 dBm at 20 Kbit/s/–109.5 dBm at 2.4 Kbit/s (433.92 MHz) • High ASK Sensitivity: –112.5 dBm at 10 Kbit/s/–116.5 dBm at 2.4 Kbit/s (433.92 MHz) • Low Supply Current: 10.5 mA in RX and TX Mode (3V/TX with 5 dBm) • Data Rate: 1 to 20 Kbit/s Manchester FSK, 1 to 10 Kbit/s Manchester ASK • ASK/FSK Receiver Uses a Low-IF Architecture with High Selectivity, Blocking, and Low Intermodulation (Typical Blocking 55 dB at ±750 kHz/61 dB at ±1.5 MHz and 70 dB at ±10 MHz, System I1dBCP = –30 dBm/System IIP3 = –20 dBm) • 226 kHz/237 kHz IF Frequency with 30 dB Image Rejection and 170 kHz Usable IF Bandwidth • Transmitter Uses Closed Loop Fractional-N Synthesizer for FSK Modulation with a High PLL Bandwidth and an Excellent Isolation between PLL/VCO and PA • Tolerances of XTAL Compensated by Fractional-N Synthesizer with 800 Hz RF Resolution • Integrated RX/TX-Switch, Single-ended RF Input and Output • RSSI (Received Signal Strength Indicator) • Communication to Microcontroller with SPI Interface Working at Maximum 500 kBit/s • Configurable Self Polling and RX/TX Protocol Handling with FIFO-RAM Buffering of Received and Transmitted Data • 5 Push Button Inputs and One Wake-up Input are Active in Power-down Mode • Integrated XTAL Capacitors • PA Efficiency: up to 38% (433.92 MHz/10 dBm/3V) • Low In-band Sensitivity Change of Typically ±1.8 dB within ±58 kHz Center Frequency Change in the Complete Temperature and Supply Voltage Range • Supply Voltage Switch, Supply Voltage Regulator, Reset Generation, Clock/Interrupt Generation and Low Battery Indicator for Microcontroller • Fully Integrated PLL with Low Phase Noise VCO, PLL Loop Filter and Full Support of Multi-channel Operation with Arbitrary Channel Distance Due to Fractional-N Synthesizer • Sophisticated Threshold Control and Quasi-peak Detector Circuit in the Data Slicer • Power Management via Different Operation Modes • 315 MHz, 345 MHz, 433.92 MHz, 868.3 MHz and 915 MHz without External VCO and PLL Components • Inductive Supply with Voltage Regulator if Battery is Empty (AUX Mode) • Efficient XTO Start-up Circuit (> –1.5 k Ω Worst Case Real Start-up Impedance) • Changing of Modulation Type ASK/FSK and Data Rate without Component Changes • Minimal External Circuitry Requirements for Complete System Solution • Adjustable Output Power: 0 to 10 dBm Adjusted and Stabilized with External Resistor • ESD Protection at all Pins (1.5 kV HBM, 200V MM, 1 kV FCDM) • Supply Voltage Range: 2.4V to 3.6V or 4.4V to 6.6V • Temperature Range: –40°C to +85°C • Small 7 × 7 mm QFN48 Package UHF ASK/FSK Transceiver ATA5423 ATA5425 ATA5428 ATA5429 4841D–WIRE–10/07 |
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