Summing circuit and equalizer including the same

    公开(公告)号:US11870615B2

    公开(公告)日:2024-01-09

    申请号:US17835373

    申请日:2022-06-08

    CPC classification number: H04L25/03057 H03K3/037 H03K19/20

    Abstract: Provided are a summing circuit and an equalizer including the summing circuit. The summing circuit includes: a reference signal generator generating a first reference signal and a second reference signal, based on a coefficient code; a first non-overlap clock buffer generating a first switching signal and a second switching signal by using the first reference signal; and a first current source receiving the first switching signal and the second switching signal generated by the first non-overlap clock buffer, generating a first output current by using a bias voltage, and outputting the first output current to an output line, wherein the first switching signal includes a switching signal and a complementary switching signal that is a complementary signal to the switching signal, and wherein a logic low period of the second switching signal is included in a logic high period of the complementary switching signal of the first switching signal.

    Integrated circuit using bias current, bias current generating device, and operating method for the same

    公开(公告)号:US11733727B2

    公开(公告)日:2023-08-22

    申请号:US17680386

    申请日:2022-02-25

    CPC classification number: G05F3/205 H03F3/16 H03K17/223

    Abstract: Disclosed is an integrated circuit including a first bias current generating circuit. The first bias current generating circuit includes a first amplifier receiving a reference voltage and a first voltage and amplifying a difference between them to output a first output voltage, a first bias current generator receiving the first output voltage and outputting a first bias current in response to the first output voltage, a variable resistor receiving the first bias current and outputting the first voltage in response to the first bias current and a calibration code, a second bias current generator receiving the first output voltage and outputting a second bias current to a peripheral circuit in response to the first output voltage, and a third bias current generator receiving the first output voltage and outputting a third bias current to an external device through a first pad in response to the first output voltage.

    LATCH CIRCUIT AND EQUALIZER INCLUDING THE SAME

    公开(公告)号:US20220400035A1

    公开(公告)日:2022-12-15

    申请号:US17834563

    申请日:2022-06-07

    Abstract: A latch circuit and an equalizer including the same are provided. The equalizer includes: an even data path configured to receive a reception data signal and including a first summing circuit and a first latch circuit; and an odd data path configured to receive the reception data signal and including a second summing circuit and a second latch circuit. An even data signal output from the first latch circuit is configured to be input to the second summing circuit, and an odd data signal output from the second latch circuit is configured to be input to the first summing circuit. Each of the first latch circuit and the second latch circuit includes a latch and a multiplexer.

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