ATA5824
ATA5824 is UHF ASK/FSK Transceiver manufactured by Atmel.
- Part of the ATA5823 comparator family.
- Part of the ATA5823 comparator family.
Features
- Full-duplex Operation Mode without Duplex Frequency Offset to Prevent the Relay
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- Attack against Passive Entry Go (PEG) Systems High FSK Sensitivity:
- 105.5 d Bm at 20 k Baud/- 109 d Bm at 2.4 k Baud (433.92 MHz) High ASK Sensitivity:
- 111.5 d Bm at 10 k Baud/- 116 d Bm at 2.4 k Baud (100% ASK, Carrier Level 433.92 MHz) Low Supply Current: 10.5 m A in RX and TX Mode (3V/TX with 5 d Bm/433.92 MHz) Data Rate 1 to 20 k Baud Manchester FSK, 1 to 10 k Baud Manchester ASK ASK/FSK Receiver Uses a Low IF Architecture with High Selectivity, Blocking and Low Intermodulation (Typical 3 d B Blocking 55.5 d BC at ±750 k Hz/60.5 d BC at ±1.5 MHz and 67 d BC at ±10 MHz, System I1d BCP =
- 30 d Bm/System IIP3 =
- 20 d Bm) Wide Bandwidth AGC to Handle Large Outband Blockers above the System I1d BCP 226 k Hz IF (Intermediate Frequency) with 30 d B Image Rejection and 220 k Hz System Bandwidth to Support TPM Transmitters using ATA5756/ATA5757 Transmitters with Standard Crystals Transmitter Uses Closed Loop FSK Modulation with Fractional-N Synthesizer with High PLL Bandwidth and an Excellent Isolation between PLL and PA Tolerances of XTAL pensated by Fractional-N Synthesizer with 800 Hz RF Resolution Integrated RX/TX-Switch, Single-ended RF Input and Output RSSI (Received Signal Strength Indicator) munication to Microcontroller with SPI Interface Working at 500 k Bit/s Maximum Configurable Self Polling and RX/TX Protocol Handling with FIFO-RAM Buffering of Received and Transmitted Data 1 Push Button Input and 1 Wake-up Input are Active in Power-down Mode Integrated XTAL Capacitors PA Efficiency: up to 38% (433.92 MHz/10 d Bm/3V) Low In-band Sensitivity Change of Typically ±2.0 d B within ±75 k Hz Center Frequency Change in the plete Temperature and Supply Voltage Range 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...
