Compared to technologies like Gallium-Arsenide (GaAs) used so far to build radar systems for the automotive industry, Infineon’s SiGe process benefits from its origins in the volume bipolar segment. The unique feature is its robustness which makes it suitable for automotive environments over the full temperature range up to full automotive qualification according to AEC-Q100.
Single Chip Transceiver for 76-77 GHz
Designed for maximum system integration, the RXN77xx single chip transceiver incorporates all core functions of a radar frontend into a single-chip. The first family member, RXN7740, in particular contains: VCO, PA and up to 4 mixers, as well as various on-chip test-functions. Using this component the radar sensor manufacturer can realize a 4-channel monostatic system for Long-Range Applications (e.g. Adaptive Cruise Control, ACC).
Dielectric Resonance Oscillator (DRO)
The RON7701 DRO can be used to run the RXN7740 in a PLL-type of environment. Combined with an external resonator and the divided output signal of the VCO, the DRO running at 19 GHz provides a highly accurate signal to the PLL circuit.
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