ATMEL EPROM 存储器AT86RF230

AT86RF230 概述 This single-chip radio transceiver provides a complete radio transceiver interface between the antenna and the microcontroller. It comprises the analog radio transceiver and the digital demodulation including time and frequency synchronization, and data buffering. The number of external components is minimized such that only an antenna, a crystal and four decoupling capacitors are required. The bidirectional differential antenna pins are used for transmission and reception, so that no external antenna switch is needed The received RF signal at pins RFN and RFP is differentially fed through the low-noise amplifier (LNA) to the RF filter (PPF) to generate a complex signal. This signal is converted down by mixers to an intermediate frequency and fed to the integrated
channel filter (SSBF). The limiting amplifier provides sufficient gain to drive the succeeding analog-to-digital converter (ADC) and generates a digital RSSI signal with 3 dB granularity. The ADC output signal is sampled by the digital base band receiver (RX BBP).
The transmit modulation scheme is offset-QPSK (O-QPSK) with half-sine pulse shaping and 32-length block coding (spreading) according to [1]. The modulation signal is generated in the digital transmitter (TX BBP) and applied to the fractional-N frequency synthesis (PLL) generating a coherent phase modulation required for demodulation of O-QPSK signals. The frequency-modulated RF signal is fed to the power amplifier (PA). An internal 128 byte RAM for RX and TX (Frame Buffer) buffers the data to be transmitted or the received data. Two on chip low dropout (LDO) voltage regulators provide the internal analog and digital 1.8V supply.

AT86RF230 特性

• High Performance RF-CMOS 2.4 GHz Radio Transceiver Targeted for
  IEEE 802.15.4 and ZigBee Applications
  • Industry Leading Link Budget (104 dB):
  - Programmable Output Power from -17 dBm up to 3 dBm
  - Receiver Sensitivity -101 dBm
  • Ultra-Low Power Consumption:
  - SLEEP: 20 nA
  - RX: 15.5 mA
  - TX: 16.5 mA (at max Transmit Power of 3 dBm)
  • Ultra-Low Supply Voltage (1.8V to 3.6V) with Internal Regulator
  • Optimized for Low BoM Cost and Ease of Production:
  - Few External Components Necessary (Crystal, Capacitors and Antenna)
  • Excellent ESD Robustness
  • Easy to Use Interface:
  - Registers and Frame Buffer Accessible through Fast SPI
  - Only Two Microcontroller GPIO Lines Necessary
  - One Interrupt Pin from Radio Transceiver
  - Clock Output with Prescaler from Radio Transceiver
  • Radio Transceiver Features:
  - 128-byte SRAM for Data Buffering
  - Programmable Clock Output to Clock the Host Microcontroller or as Timer
  Reference
  - Integrated TX/RX Switch
  - Fully Integrated PLL with on-chip Loop Filter
  - Fast PLL Settling Time
  - Battery Monitor
  - Fast Power-Up Time < 1 ms
  • Special IEEE 802.15.4-2003 Hardware Support:
  - FCS Computation
  - Clear Channel Assessment
  - Energy Detection / RSSI Computation
  - Automatic CSMA-CA
  - Automatic Frame Retransmission
  - Automatic Frame Acknowledgement
  - Automatic Address Filtering
  • Industrial Temperature Range:
  - -40° C to 85° C
  • I/O and Packages:
  - 32-pin Low-Profile QFN
  - RoHS/Fully Green
  • Compliant to EN 300 328/440, FCC-CFR-47 Part 15, ARIB STD-66, RSS-210
  • Compliant to IEEE 802.15.4-2003

AT86RF230 订购型号