A CRYO-CMOS RF-DAC Based Super-Heterodyne Transmitter for Superconducting Qubit Control

Multiple Qubits should be manipulated to perform practical quantum computing, which requires a broad frequency range for the qubit control chip. We present a 4 K cryo-CMOS quantum control chip featuring a Mixing (MIX)/ Non-return-to-zero (NRZ) mode radio frequency digital to analog converter (RF-DAC) and an up-conversion mixer. By opting for Mixing Mode RF-DAC and a mixer for two-stage frequency up-conversion instead of direct-conversion or other methods, our controller can achieve a wider modulated frequency range and lower power consumption.