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A 1.62 Gb/s–2.7 Gb/s Referenceless Transceiver for DisplayPort v1.1a With Weighted Phase and Frequency Detection

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6 Author(s)
Junyoung Song ; Dept. of Electron. & Electr. Eng., Korea Univ., Seoul, South Korea ; Inhwa Jung ; Minyoung Song ; Young-Ho Kwak
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This paper proposes a 2.7 Gb/s referenceless transceiver with weighted PFD for frequency detection of random signals. A single loop referenceless CDR is also proposed to overcome the disadvantages of a dual loop CDR. The ANSI 8b/10b encoder & decoder with the scrambler, the serializer & de-serializer, and the output driver with pre-emphasis are included in the proposed transceiver architecture for DisplayPort v1.1a. The jitter of the generated clock at the Tx PLL is 3.28 psrms at 2.7 Gb/s with 1.2 V supply. The eye opening of the transmitter output with 3 m cable is 0.54 UI. The measured jitter of the recovered clock at the CDR is 1.57 psrms, and BER is less than 10-12. The receiver consumes 23 mW at 2.7 Gb/s with 1.2 V supply. The CDR core and transceiver occupy 0.07 mm2 and 0.94 mm2, respectively, in a 0.13 μm 1P8M CMOS process.

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Circuits and Systems I: Regular Papers, IEEE Transactions on  (Volume:60 ,  Issue: 2 )