A 8.0Gb/s source-series-terminated transmitter driver with 3 tap FFE for multi-standard applications in 65 nm CMOS

Chen, Yanan; Yue, Suge; Bian, Qiang; Shi, Fei

doi:10.1109/codit.2016.7593583

Cited by 2 publications

(1 citation statement)

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“…5 shows that the impedance calibration scheme is a novel method based on an analog technique [28,29]. Unlike conventional impedance calibration technique using a digital method [30,31], the proposed impedance calibration scheme achieves the impedance calibration with higher precision of calibration. It includes a negative feedback calibration loop each for the pull-up slice, pull-down slice, and shunting slice impedance.…”

Section: Output Drivermentioning

confidence: 99%

A 1.89 mW/Gbps SST transmitter with three-tap FFE and impedance calibration

Bai

Zhao

Zuo

et al. 2019

IEICE Electron. Express

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This study presents an 8 Gbps low-power source-series terminated (SST) transmitter for high-speed serial links. The proposed transmitter consists of a novel hybrid 20:2 multiplexer followed by a three-tap feed-forward equalizer (FFE) and a shunt path SST driver. In addition, a high-precision impedance calibration circuit with slice unit replication is proposed to match the characteristic impedance of channel, whose maximum calibration error is 0.002%. Fabricated in 55-nm CMOS technology and has area of 0.024 mm 2 . Measurement results show that the transmitter achieves data rate of 8 Gbps while maintaining good performance. The transmitter has output swing of 510 mV with −6 dB post-tap equalization, and it consumes 15.1 mW under 1.2 V power supply.

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