RECEPTION APPARATUS

摘要

Provided is a reception apparatus capable of shortening a time period until the original data and clock can be recovered from a digital signal after temporary superimposition of noise on the digital signal stops. A reception apparatus 20 includes a receiver unit 21, a voltage-controlled oscillator 22, a sampler unit 23, a control voltage generation unit 24, an error detection unit 25, a training control unit 26, and an equalizer control unit 27. The receiver unit 21 includes an equalizer unit 21A. When the error detection unit 25 detects an error of a digital signal, the reception apparatus 20 causes a phase/frequency comparison by the control voltage generation unit 24 to be stopped.

主权项

1: A reception apparatus for receiving a digital signal arriving via a transmission path after being transmitted from a transmission apparatus, the reception apparatus comprising:
a voltage-controlled oscillator configured to input a control voltage and output a clock of a frequency according to a value of the control voltage; a sampler unit configured to input the digital signal, input the clock output from the voltage-controlled oscillator, and sample and hold data of the digital signal at a timing indicated by the clock to output the sampled and held data; a control voltage generation unit configured to obtain a phase or frequency difference between the digital signal or the data and the clock and generate the control voltage having a value for which the difference is reduced to output the generated control voltage to the voltage-controlled oscillator; and an error detection unit configured to detect an error of the digital signal, wherein, when the error detection unit detects the error of the digital signal, a phase/frequency comparison by the control voltage generation unit is stopped.