2022
DOI: 10.1109/jssc.2022.3174605
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Abstract: In this article, a cryo-CMOS receiver integrated with a frequency synthesizer for scalable multiplexed readout of qubits is presented, focusing on radio frequency (RF) reflectometry readout of silicon-based semiconductor spin qubits/quantum dots. The proposed spin qubit readout chip consists of a wideband low noise amplifier (LNA), a quadrature mixer, a complex filter, a pair of in-phase/quadrature (I/Q) intermediate frequency (IF) amplifier chains, and a type-II charge-pump phase-locked loop (PLL) with a prog… Show more

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Cited by 12 publications
(3 citation statements)
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“…This cryo-CMOS receiver with frequency synthesizer for qubit readout is a first step towards fully-integrated qubit readout and control. Figure 14 shows a micrograph of the readout chip Quadro with the overall specifications that can be found in [215].…”
Section: Modelsmentioning
confidence: 99%
See 1 more Smart Citation
“…This cryo-CMOS receiver with frequency synthesizer for qubit readout is a first step towards fully-integrated qubit readout and control. Figure 14 shows a micrograph of the readout chip Quadro with the overall specifications that can be found in [215].…”
Section: Modelsmentioning
confidence: 99%
“…Photomicrograph of the chip Quadro. The chip's specifications and measurements can be found in[215]. Reproduced from[215].…”
mentioning
confidence: 99%
“…It includes multiple phase-locked loops (PLLs) for the internal generation of LOs. There has been previous demonstration on including a PLL for internal LO generation for the readout of spin qubits with FDM [25]. This work proposes employing multiple PLLs, which enables managing different LO frequencies with each PLL responsible for one LO frequency for a group of qubits, where the group can be selected out of thousands or millions of qubits.…”
mentioning
confidence: 99%