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0.37-pJ/b/dB PAM-4 Transmitter and Adaptive Receiver with Fixed Data and Threshold Levels for 12-m Automotive Camera Link

Cited 3 time in Web of Science Cited 2 time in Scopus

Lee, Woonghee; Shim, Minkyo; Lee, Yunhee; Yang, Heejin; Ko, Han-Gon; Choi, Woo-Seok; Jeong, Deog-Kyoon

Issue Date
Institute of Electrical and Electronics Engineers Inc.
European Solid-State Circuits Conference, pp.475-478
This paper presents a transmitter and an adaptive receiver for the next-generation automotive camera link with four-level pulse amplitude modulation (PAM-4) signaling. The PAM-4 transmitter utilizes push-pull current drivers and a 3-tap feed-forward equalizer to improve impedance matching and eye margin, respectively. In order to cancel the sampler offset for a lower bit error rate (BER), instead of adjusting data and threshold levels, the gain of a programmable gain amplifier is adjusted adaptively under fixed data and threshold levels. The transmitter delivers 8-Gb/s PAM-4 signal to the adaptive receiver through a lossy 12-m cable (22-dB channel loss) with a BER of 1E-8, and the eye margin larger than 0.15 UI x 50 mV is measured for a BER of 1E-5. The prototype chips consume 65.2 mW (excluding PLL), exhibiting an FoM of 0.37 pJ/bit/dB.
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  • College of Engineering
  • Department of Electrical and Computer Engineering
Research Area DRAM-PIM, High Bandwidth Memory Interface, O Links, Performance Modeling for I


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