آر اف (فرکانس رادیویی) و بی‌سیم آی سی‌ فرستنده‌گیرنده آر اف

Product Attributes

Introduction

The Atmel ATA8510/15 is a highly integrated, low-power UHF ASK/FSK RF transceiver with an integrated AVR microcontroller. The Atmel ATA8510/15 is partitioned into three sections; an RF front end, a digital baseband and the low-power 8-bit AVR microcontroller. The product is designed for the ISM frequency bands in the ranges of 310MHz to 318MHz, 418MHz to 477MHz and 836MHz to 956MHz. The external part count is kept to a minimum due to the very high level of integration in this device. By combining outstanding RF performance with highly sophisticated baseband signal processing, robust wireless communication can be easily achieved. The receive path uses a low-IF architecture with an integrated double quadrature receiver and digitized IF processing. This results in high image rejection and excellent blocking performance. The transmit path uses a closed loop fractional-N modulator with Gauss shaping and pre-emphasis functionality for high data rates. In addition, highly flexible and configurable baseband signal processing allows the transceiver to operate in several scanning, wake-up and automatic self-polling scenarios. For example, during polling the IC can scan for specific message content (IDs) and save valid telegram data in the FIFO buffer for later retrieval. The device integrates two receive paths that enable a parallel search for two telegrams with different modulations, data rates, wake-up conditions, etc. The Atmel ATA8510/15 implements a flexible service configuration concept and supports up to 15 channels. The channels are grouped into five service configurat

Features

• AVR microcontroller core with 1Kbyte SRAM and 24Kbyte RF library in firmware (ROM)
• Atmel ATA8515: No user memory — RF library in firmware only
• Atmel ATA8510: 20Kbyte of user Flash
• Supported frequency ranges: Low-band 310MHz to 318MHz, 418MHz to 477MHz; High-band 836MHz to 956MHz; 315.00MHz/433.92MHz/868.30MHz and 915.00MHz with one 24.305MHz crystal
• Low current consumption: 9.8mA for RXMode (low-band), 1.2mA for 21ms cycle three-channel polling; 9.4mA/13.8mA for TXMode (low-band, Pout = 6dBm/10dBm)
• Typical OFFMode current of 5nA (maximum 600nA at VS = 3.6V and T = 85°C)
• Programmable output power –12dBm to +14.5dBm (0.4dB step)
• Supports the 0dBm class of ARIB STD-T96
• ASK shaping to reduce spectral bandwidth of modulated PA output signal
• Input 1dB compression point: –48dBm (full sensitivity level); –20dBm (active antenna damping)
• Programmable channel frequency with fractional-N PLL: 93Hz resolution for low-band; 185Hz resolution for high-band
• FSK deviation ±0.375kHz to ±93kHz
• FSK sensitivity (Manchester coded) at 433.92MHz: –108.5dBm at 20Kbit/s Δf = ±20kHz BWIF = 165kHz; –111dBm at 10Kbit/s Δf = ±10kHz BWIF = 165kHz; –114dBm at 5Kbit/s Δf = ±5kHz BWIF = 165kHz; –122.5dBm at 0.75Kbit/s Δf = ±0.75kHz BWIF = 25kHz
• ASK sensitivity (Manchester coded) at 433.92MHz: –110.5dBm at 20Kbit/s BWIF = 80kHz; –125dBm at 0.5Kbit/s BWIF = 25kHz
• Programmable Rx-IF bandwidth 25kHz to 366kHz (approximately 10% steps)
• Blocking (BWIF = 165kHz): 64dBc at frequency offset = 1MHz and 48dBc at 225kHz
• High image rejection: 55dB at 315MHz/433.92MHz and 47dB at 868.3MHz/915MHz without calibration
• Supported data rate in buffered mode 0.5Kbit/s to 80Kbit/s (120Kbit/s NRZ)
• Supports pattern-based wake-up and start of frame identification. Flexible service configuration concept with on-the-fly (OTF) modification (in IDLEMode) of SRAM service parameters (data rate, …)
• Each service consists of: One service-specific configuration part; Three channel-specific configuration parts
• Three service configurations are located in EEPROM
• Two service configurations are located in SRAM and can be modified via SPI or embedded application software
• Digital RSSI with very high relative accuracy of ±1dB thanks to digitized IF processing
• Programmable clock output derived from crystal frequency
• 1024byte EEPROM data memory for transceiver configuration
• SPI interface for Rx/Tx data access and transceiver configuration
• 500Kbit SPI data rate for short periods on SPI bus and host controller
• On demand services (SPI or API) without polling or telegram reception
• Integrated temperature sensor
• Self check and calibration with temperature measurement
• Configurable EVENT signal indicates the status of the IC to an external microcontroller
• Automatic antenna tuning at Tx center frequency for loop antenna
• Automatic low-power channel polling
• Flexible polling configuration concerning timing, order and participating channels
• Fast Rx/Tx reaction time
• Power-up (typical 1.5ms OFFMode -> TXMode, OFFMode -> RXMode)
• RXMode <-> TXMode switching (typical 500μs)
• Supports mixed ASK/FSK telegrams
• Non-byte aligned data reception and transmission
• Software customization
• Antenna diversity with external switch via GPIO control
• Antenna diversity with internal SPDT switch
• Supply voltage range 1.9V to 3.6V
• Temperature range -40°C to +85°C
• ESD protection at all pins (±4kV HBM, ±200V MM, ±750V FCDM)
• Small 5×5mm QFN32 package/pitch 0.5mm
• Suitable for applications governed by EN 300 220 and FCC part 15, title 47

Applications

• Remote Control System
• Home and Building Automation
• Wireless Sensor Networks
• Weather stations
• Battery operated remote controls
• Smoke detectors
• Wireless alarm and security systems