皮可复用器：用于千像素TES阵列的基于微控制器的时域复用读出
picoMUX: microcontroller based time-domain multiplexing readout for kilopixel TES arrays
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中文总结 AI 辅助
针对下一代CMB望远镜千像素TES阵列电子选项少的问题，提出皮可复用器架构，用微控制器取代FPGA，利用NIST复用器特性，实现所需定时指标，降低成本等，且噪声测量符合预期。
中文摘要 AI 辅助
基于低温超导量子干涉器件的时域复用（TDM）的进展已超过其常温读出电子设备。下一代宇宙微波背景（CMB）望远镜正在将千像素TES阵列作为基线，而可行的电子选项很少。我们展示了皮可复用器（picoMUX），这是一种新的TDM读出电子架构，用一系列现代微控制器取代了此类系统中通常使用的现场可编程门阵列（FPGA）。它围绕当前一代美国国家标准与技术研究院（NIST）复用器设计，充分利用其差分特性和两级切换。该系统实现了所需的定时指标（亚微秒行驻留时间），同时与类似的FPGA解决方案相比，降低了成本、复杂性和功耗。初步噪声测量结果与预期一致，没有证据表明这种新颖架构会引入额外噪声。皮可复用器展示了微控制器的最新进展如何为千像素TES阵列实现更简单、低功耗、低成本的TDM读出。
英文摘要
Advances in cryogenic SQUID-based time-domain multiplexing (TDM) have outpaced their warm readout electronics. Next generation CMB telescopes are baselining kilopixel TES arrays with few viable electronic options. We present picoMUX, a new TDM readout electronics architecture that replaces the FPGA typically used in such systems with a complement of modern microcontrollers. Designed around the current generation NIST multiplexer, it fully exploits its differential nature and two-level switching. The system achieves the desired timing metrics (sub μs row dwell time) while reducing cost, complexity, and power consumption over a comparable FPGA solution. Preliminary noise measurements are consistent with expectations and show no evidence that the novel architecture introduces excess noise. picoMUX demonstrates how recent advances in microcontrollers enable simpler, low-power, low-cost TDM readouts for kilopixel TES arrays.
