ATA5812 ATMEL Corporation, ATA5812 Datasheet

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ATA5812

Manufacturer Part Number
ATA5812
Description
Manufacturer
ATMEL Corporation
Datasheets

Specifications of ATA5812

Case
SOP-14
Date_code
06+

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Features
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 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 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 MHz/10 dBm/3V)
Low Inband 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 and PLL Loop Filter
Sophisticated Threshold Control and Quasi Peak Detector Circuit in the Data Slicer
Power Management via Different Operation Modes
433.92 MHz, 868.3 MHz and 315 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 Worst Case Start 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 (2 kV HBM, 200 V MM)
Supply Voltage Range: 2.4V to 3.6V or 4.4V to 6.6V
Temperature Range: –40°C to +105°C
Small 7
7 mm QFN48 Package
UHF ASK/FSK
Transceiver
ATA5811
ATA5812
4689F–RKE–08/06

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