TEF810X
76 GHz to 81 GHz car RADAR transceiver
Rev. 1.0 — 10 May 2019
Product short data sheet
COMPANY PUBLIC
1 General description
The TEF810X Car RADAR transceiver is a single-chip automotive FMCW RADAR
transceiver for short-, medium- and long-range RADAR applications, covering the full car
RADAR frequency band from 76 GHz to 81 GHz.
The packaged IC offers a low-cost fully integrated solution for all critical mm-wave
functions, in combination with ADCs at each receiver path. The mm-wave front end part
consists of a waveform generator offering flexible chirp control, three transmit chains
featuring binary phase control and output level stabilization, and four receive chains with
high input compression and low noise figure.
Each receive chain contains high-pass filters for suppression of strong low frequency
signals, as well as low-pass filter functionality for suppression of signals in the ADC
aliasing band. Each receive chain includes a 12-bit SAR ADC sampling at an effective
rate of 40 MS/s (M samples per second). The ADC is followed by a programmable
decimation filter with decimation factors of 1, 2, 4, 8 and 16.
The digitized signals from the four receiver chains are serialized. There are two digital
output variants available:
• TEF8101 output is through four high-speed LVDS data lines, plus a bit and frame clock
signals for data synchronization
• TEF8102 includes a CSI-2-DPHY interface with four data lanes and a clock lane
The chip uses a full-duplex SPI interface with 40 Mbps maximal transfer rate for bi-
directional exchange of control and monitoring data between the RADAR IC and a host
microcontroller.
The TEF810X contains a functional safety monitoring circuit, keeping track of key
operational parameters such as chip temperature, status of RF connections to the PCB
board, locking status of the PLLs during a frequency chirp, etc. The monitoring circuitry
transfers some of the monitoring functions normally performed by the microcontroller
into the TEF810X, creating a virtual layered functional safety concept, with the TEF810X
functional monitoring circuitry as the inner layer.
The RADAR transceiver is packaged in a 7.5 mm x 7.5 mm eWLB package. The
package has a 15 x 15 sized Ball Grid Array (BGA) with 0.5 mm pitch for easy interfacing
to a wide range of antenna board technologies.