With the advances in superconductor detectors and single flux quantum (SFQ) logic circuits, megapixel imagers have become possible. Various detectors such as superconducting stripline detectors (SSLD), kinetic inductance detectors, nanowire single-photon detectors have quite matured in terms of speed and performance. However, scaling of the read-out electronics is still a challenge. We propose an SFQ based synchronous address encoder to read-out the response of an SSLD array. The encoder circuit provides two sets of outputs at each clock period: one is the time-division multiplexed, serial data output, and the other is the synchronized address output associated with the time-multiplexed data. Thus, the number of connections to the room temperature is substantially reduced. We experimentally demonstrate a 2-bit encoder. Then, we present the scalability of the circuit to larger arrays and show the simulation results of a 4-bit encoder, which is suitable to read-out a 16 × 16 detector array.

中文翻译：

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超导检测器阵列的同步SFQ地址编码器

随着超导体检测器和单通量量子（SFQ）逻辑电路的进步，百万像素成像器成为可能。各种检测器，例如超导带状线检测器（SSLD），动态电感检测器，纳米线单光子检测器，在速度和性能方面已经相当成熟。然而，读出电子设备的缩放仍然是一个挑战。我们提出了一种基于SFQ的同步地址编码器，以读出SSLD阵列的响应。编码器电路在每个时钟周期提供两组输出：一组是时分多路复用串行数据输出，另一组是与时分多路复用数据相关联的同步地址输出。因此，大大减少了与室温的连接数量。我们通过实验演示了2位编码器。然后，