A 4-Gbps POF Receiver Using Linear Equalizer With Multi-Shunt-Shunt Feedbacks in 65-nm CMOS

作者：Dong Yunzhi^*; Martin Kenneth W

来源：IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2013, 60(10): 617-621.

DOI：10.1109/TCSII.2013.2273839

• CMOS
• continuous-time linear equalizer (CTLE)
• fiber-optic
• integrated photodetectors (PDs)
• linear equalizer
• monolithic
• optoelectronic IC (OEIC)
• plastic optical fiber (POF)
• receiver
• SGM-TIA
• transimpedance amplifier (TIA)

This brief describes the design of a monolithic plastic optical fiber (POF) receiver with a pair of 250-by-250 mu m N-well/P-sub photodetectors (PDs). A two-stage continuous-time linear equalizer that utilizes multiple active shunt-shunt feedback networks has been proposed to compensate for the slow-rolling-off high-frequency losses of the PDs. A test chip has been implemented in a standard 65-nm CMOS process, and it consists of a transimpedance amplifier, a variable-gain amplifier, a linear equalizer, a limiting amplifier, and an output buffer. The receiver consumes an active chip area of 0.24 mm(2) and a dc power of 46 mW (excluding auxiliary test circuits and the output buffer) from a 1-V power supply. The prototype POF receiver demonstrates a non-return-to-zero data rate of 4 Gbit/s with a bit error rate less than 10(-12), at a peak-to-peak optical input power of -3.2 dBm p-p (average input power is kept at -3 dBm).

• 出版日期2013-10