The BGT24AT2 from Infineon Technologies is a 24 GHz Transmitter MMIC with 2 transmitter outputs and one LO output. This multifunction signal source accommodates a 24 GHz fundamental voltage controlled oscillator and a frequency divider with a division ratio of 1024. The frequency divider output is differential. The three individual RF outputs generate a typical output power of +10 dBm, adjustable via SPI-programmable 6 bit DAC’s.
Fast pulsing and phase inversion of the transmit signal is provided either using dedicated control inputs or the 64-bit SPI. The automatic configuration of the LO-output is possible using a dedicated logic. RF output level sensors as well as a temperature sensor are implemented for monitoring purposes. The analog sensor signals along with an additional optional analog input are multiplexed to one common output.
The transmitter requires a single supply voltage of 3.3 V and consumes a low power of 775 mW. The MMIC is manufactured using a 200 GHz, 0.18μm SiGe:C process and is available in a 32-pin leadless RoHS compliant VQFN package with LTI feature. It has been qualified for automotive applications according to AEC-Q100/101.
