A 40 mV-Differential-Channel-Swing Transceiver Using a RX Current-Integrating TIA and a TX Pre-Emphasis Equalizer With a CML Driver at 9 Gb/s
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- Title
- A 40 mV-Differential-Channel-Swing Transceiver Using a RX Current-Integrating TIA and a TX Pre-Emphasis Equalizer With a CML Driver at 9 Gb/s
- Authors
- Il-Min Yi; Soo-Min Lee; Seung-Jun Bae; Young-Soo Sohn; Jung-Hwan Choi; Seong-Jin Jang; Byungsub Kim; Sim, JY; Park, HJ
- Date Issued
- 2016-01
- Publisher
- IEEE
- Abstract
- A differential transceiver achieves a 40 mVppd channel signal-swing, a 9 mVppd receiver (RX) input sensitivity, and a 0.59 pJ/b energy efficiency at 9 Gb/s with a 12" FR-4 channel. A current-integrating TIA (CI-TIA) is proposed as a RX pre-amplifier to enhance the RX input sensitivity by increasing the voltage gain of the CI-TIA to around 18 at 9 Gb/s. The RX circuit alone works up to 11 Gb/s with a 1" FR-4 channel. A voltage-mode pre-emphasis equalizer is combined with a current-mode logic (CML) driver at transmitter (TX) to save the low-frequency de-emphasis current of the conventional current-mode equalizer combined with a CML driver. The voltage-mode equalizer consists of a series connection of an inverter and a capacitor; the equalization coefficient is proportional to the supply voltage of the inverter. The transceiver chip in a 65 nm CMOS process consumes 2.8 mW at TX and 2.5 mW at RX with a 1 V supply and a 12" FR-4 channel at 9 Gb/s.
- Keywords
- Current-integrating; differential transceiver; low-power; low-swing; pre-amplifier; pre-emphasis equalizer; RX input sensitivity; TIA
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/37149
- DOI
- 10.1109/TCSI.2015.2500420
- ISSN
- 1549-8328
- Article Type
- Article
- Citation
- EEE Transactions on Circuits and Systems I: Regular Papers, vol. 63, no. 1, page. 122 - 133, 2016-01
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