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ATA5746

ATMEL Corporation
Part Number ATA5746
Manufacturer ATMEL Corporation
Description (ATA5745 / ATA5746) UHF ASK/FSK Receiver
Published Apr 30, 2007
Detailed Description Features • Transparent RF Receiver ICs for 315 MHz (ATA5746) and 433.92 MHz (ATA5745) With • • High Receiving Sensitivit...
Datasheet PDF File ATA5746 PDF File

ATA5746
ATA5746

Overview
Features • Transparent RF Receiver ICs for 315 MHz (ATA5746) and 433.
92 MHz (ATA5745) With • • High Receiving Sensitivity Fully Integrated PLL With Low Phase Noise VCO, PLL, and Loop Filter High FSK/ASK Sensitivity:–105 dBm (ATA5746, FSK, 9.
6 Kbits/s, Manchester, BER 10-3) –114 dBm (ATA5746, ASK, 2.
4 Kbits/s, Manchester, BER 10-3) –104 dBm (ATA5745, FSK, 9.
6 Kbits/s, Manchester, BER 10-3) –113 dBm (ATA5745, ASK, 2.
4 Kbits/s, Manchester, BER 10-3) Supply Current: 6.
5 mA in Active Mode (3V, 25°C, ASK Mode) Data Rate: 1 Kbit/s to 10 Kbits/s Manchester ASK, 1 Kbit/s to 20 Kbits/s Manchester FSK With Four Programmable Bit Rate Ranges Switching Between Modulation Types ASK/FSK and Different Data Rates Possible in ≤1 ms Typically, Without Hardware Modification on Board to Allow Different Modulation Schemes for RKE, TPMS Low Standby Current: 50 µA at 3V, 25°C ASK/FSK Receiver Uses a Low-IF Architecture With High Selectivity, Blocking, and Low Intermodulation (Typical 3-dB Blocking 68.
0 dBC at ±3 MHz/74.
0 dBC at ±20.
0 MHz, System I1dBCP = –31 dBm/System IIP3 = –24 dBm) Telegram Pause Up to 52 ms Supported in ASK Mode Wide Bandwidth AGC to Handle Large Out-of-band Blockers above the System I1dBCP 440-kHz IF Frequency With 30-dB Image Rejection and 420-kHz IF Bandwidth to Support PLL Transmitters With Standard Crystals or SAW-based Transmitters RSSI (Received Signal Strength Indicator) With Output Signal Dynamic Range of 65 dB Low In-band Sensitivity Change of Typically ±2.
0 dB Within ±160-kHz Center Frequency Change in the Complete Temperature and Supply Voltage Range www.
DataSheet4U.
com Sophisticated Threshold Control and Quasi-peak Detector Circuit in the Data Slicer Fast and Stable XTO Start-up Circuit (> –1.
4 kΩ Worst-case Start Impedance) Clock Generation for Microcontroller ESD Protection at all Pins (±4 kV HBM, ±200V MM, ±500V FCDM) Dual Supply Voltage Range: 2.
7V to 3.
3V or 4.
5V to 5.
5V Temperature Range: –40°C to +105°C Small 5 mm × 5 mm QFN24 Package • • • UHF ASK...


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