TY - GEN
T1 - A 4nm 16Gb/s/pin Single-Ended PAM4 Parallel Transceiver with Switching-Jitter Compensation and Transmitter Optimization
AU - Jin, Jahoon
AU - Lee, Soo Min
AU - Min, Kyunghwan
AU - Ju, Sodam
AU - Lim, Jihoon
AU - Chae, Hyunsu
AU - Kang, Kwonwoo
AU - Hong, Yunji
AU - Jeong, Yeongcheol
AU - Kim, Sang Ho
AU - Lee, Jongwoo
AU - Kim, Joonsuk
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Ever-growing applications, such as 5G communication, deep learning, advanced driver-assistance systems (ADAS), and extended reality (XR), have fueled demand for increased computing power and per-pin interface bandwidth. Recently, four-level pulse-amplitude modulation (PAM4) has been adopted as a solution [1-3]: the throughput is doubled without increasing the baud (Nyquist) rate. Compared to a conventional non-return-to-zero (NRZ) signaling, PAM4 requires more design effort: varying from the precise design of I/O circuits to the off-chip characterization. This is in part due to SNR degradation and an increased switching jitter (SWJ). For a 1 textst-order low-pass filter with a Nyquist-frequency cutoff, SWJ is 35% for the middle eye and 51.2% for the top and bottom eyes [4]. Maximum-transition-avoidance (MTA) encoding [3] can be used to reduce SWJ, but at the cost of additional encoder/decoder hardware and an auxiliary channel to compensate for data loss.
AB - Ever-growing applications, such as 5G communication, deep learning, advanced driver-assistance systems (ADAS), and extended reality (XR), have fueled demand for increased computing power and per-pin interface bandwidth. Recently, four-level pulse-amplitude modulation (PAM4) has been adopted as a solution [1-3]: the throughput is doubled without increasing the baud (Nyquist) rate. Compared to a conventional non-return-to-zero (NRZ) signaling, PAM4 requires more design effort: varying from the precise design of I/O circuits to the off-chip characterization. This is in part due to SNR degradation and an increased switching jitter (SWJ). For a 1 textst-order low-pass filter with a Nyquist-frequency cutoff, SWJ is 35% for the middle eye and 51.2% for the top and bottom eyes [4]. Maximum-transition-avoidance (MTA) encoding [3] can be used to reduce SWJ, but at the cost of additional encoder/decoder hardware and an auxiliary channel to compensate for data loss.
UR - http://www.scopus.com/inward/record.url?scp=85151708789&partnerID=8YFLogxK
U2 - 10.1109/ISSCC42615.2023.10067738
DO - 10.1109/ISSCC42615.2023.10067738
M3 - Conference contribution
AN - SCOPUS:85151708789
T3 - Digest of Technical Papers - IEEE International Solid-State Circuits Conference
SP - 404
EP - 406
BT - 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023
Y2 - 19 February 2023 through 23 February 2023
ER -