Features

Internal Microcontroller System

• 8-Bit AVR Microcontroller Core
• Firmware Library in ROM
• 20-Kbyte Flash Program Memory for Customer Applications
• 2-Kbyte SRAM (1 Kbyte for Customer Applications)
• 1-Kbyte EEPROM for Up to Four Service Configurations

Supported RF Ranges

• Low Band 310 MHz to 318 MHz
• Low Band 418 MHz to 477 MHz
• High Band 836 MHz to 928 MHz
• 315.00 MHz/433.92 MHz/868.30 MHz and 915 MHz with one 24.305-MHz Crystal

Current Consumption

• 5 nA in OFFMode
• 40 μA in SleepMode
• 6.5 mA in RXMode (434 MHz, VS = 5V, Internal DC-DC Converter Active)
• 7.8 mA/10.8 mA in TXMode (434 MHz, P_OUT = 6 dBm/10 dBm, VS = 5V, Internal DC-DC Converter Active)
• Three-Channel PollingMode
  • 450 μA with 50-ms Polling Cycle
  • 900 μA with 21-ms Polling Cycle

Receiver

• Demodulation
  • Amplitude Shift Keying (ASK) (OOK)
  • Frequency Shift Keying (FSK) (Deviation ±0.375 kHz to ±93 kHz)
• Decoding
  • Non-Return-to-Zero (NRZ) at 1 Kbits/s to 160 Kbits/s
  • Manchester at 500 bits/s to 80 Kbits/s
• Sensitivity (Manchester Coded) at 433.92 MHz
  • ASK: -127 dBm at 0.5 Kbit/s, BWIF = 25 kHz
  • ASK: -112 dBm at 20 Kbit/s, BWIF = 80 kHz
  • FSK: -124 dBm at 0.75 Kbit/s, Δf = ±0.75 kHz, BWIF = 25 kHz
  • FSK: -113 dBm at 10 Kbit/s, Δf = ±10 kHz, BWIF = 165 kHz
  • FSK: -110 dBm at 20 Kbit/s, Δf = ±20 kHz, BWIF = 165 kHz
• Image Rejection
  • 55 dB in 315-MHz/433-MHz Band
  • 25 dB in 868-MHz/915-MHz Band
• Blocking
  • >64 dBc at 1-MHz Offset from Carrier
  • >48 dBc at 225-kHz Offset from Carrier in Low Band
• Channel Filter 25 kHz to 365 kHz (Approx. 10% Steps)
• Digital RSSI with Relative Accuracy of ±1 dB
• Fast Receiver Synchronization ≦ 8 Symbols
• Autonomous Polling, Message and ID Validation
• Pattern-Based Wake-up and Start-of-Frame Identification (SFID)
• Flexible EEPROM and SRAM-Based Service Configuration Concept
• Double Receive Path for Parallel Telegram Search on the Same Channel (For Example, ASK/FSK)
• Buffered and Transparent Reception
• Flexible Polling Configuration Concerning Timing, Order and Participating Channels
• Configurable 4, 8, 16-Bit CRC Check

Transmitter

• Modulation
  • ASK (OOK)
  • FSK (Deviation ±0.375 kHz to ±93 kHz)
• Coding
  • NRZ at 1 Kbits/s to 160 Kbits/s
  • Manchester at 500 bits/s to 80 Kbits/s
• Programmable Output Power -12 dBm to +14.5 dBm in 0.4 dB Steps
• Buffered and Transparent Transmission
• Automatic Telegram Composition in Buffered Mode
• Configurable 4, 8, 16-Bit CRC Calculation
• ASK and Gauss Shaping to Reduce Spectral Bandwidth of Modulated PA Output Signal

Interfaces

• SPI Interface with Up to 1 Mbit/s
• LIN/UART Interface to Support LIN 2.2 Compliant Communication
• Configurable Event Signal Towards Host Microcontroller
• Programmable Clock Output Derived from Crystal Frequency

System Timings

• OFFMode to IDLEMode is 0.5 ms
• OFFMode to RXMode is 1.5 ms
• OFFMode to TXMode is 1.5 ms
• RXMode to TXMode is 0.5 ms
• TXMode to RXMode is 0.7 ms

Extended Features

• Integrated Temperature Sensor with ±1K Relative Accuracy (±3K Absolute)
• Three Switchable Antenna Ports (Triplexer)
• Antenna Diversity
• RF Approach Wake-up with External Sleep Timer

Boundary Conditions

• Supply Voltage: 2.0V to 5.5V
• Temperature Range: -40°C to +105°C
• ESD Protection
  • ±4 kV HBM
  • ±750V FCDM
• Package 5 mm x 5 mm 32-Lead QFN Wettable Flanks, 0.5 mm Pitch
• Suitable for Applications Governed by EN 300 220 and FCC Part 15, Title 47