RoadLINK® SAF5400 Single Chip Modem for V2X
V2X RF Transceiver
The TEF5100 transceiver architecture is based on direct conversion for both the transmitter and receiver, which eliminates expensive external filters. Internal, digitally controlled gain stages at RF and BB give the receiver both low noise figure and a large dynamic range.
The transmitter has several gain steps providing a wide output power range. The cut-off frequencies of the baseband filters are calibrated with an internal tuning loop and the filters support modulation bandwidths up to 20 MHz. The transceiver is controlled via a four-wire SPI interface. A high-speed parallel interface is provided to support fast gain control, RX/TX switching and frequency hopping. An internal auxiliary ADC is included for calibration purposes and to serve various external functions like power and temperature measurements. The TEF5100EL contains autonomous internal AGC functionality for the fast acquisition of packets.
Product Details
Features
- Transceiver for 802.11 p, 802.11 a/b/g/n, and ARIB STD-T55/STD-T75
- Dual channel operation with independent synthesizers
- Frequency band support for 760 MHz, 2.4 GHz, 5.4 GHz, 5.8 GHz, and 5.9 GHz
- 1.6 V analog supply
- 1.8 V – 3.3 V I/O supply
- 1.2 V digital supply
- Supported frequency bands:
- Single 760 MHz
- Single 2.4 GHz pipe
- Dual 5.x GHz pipes (5.18 GHz to 5.93 GHz)
- 5 MHz to 20 MHz modulation bandwidth
- 0 dBm linear OFDM transmit power
- 33 dB TX gain control
- 4.5 dB RX noise figure using 5.9 GHz
- 78 dB RX gain control
- RX gain settling time < 100 ns
- EVM at 760 MHz better than -40 dB
- EVM in 802.11 p band better than -32 dB
- Fractional-N synthesizer with small frequency step size
- Nominal reference frequency is 40 MHz
- Automotive AECQ100 grade 2
