A DVB-C ( Digital Video Broadcasting-Cable ) demodulator chip with this carrier recovery loop has been implemented, chip test shows that the phase noise has been efficiently suppressed and the system performance meets the QEF ( Quasi Error Free(QEF) ) standard. 将该载波恢复环路应用到DVB-C解调芯片中,芯片测试结果说明该解调芯片抑制相位噪声能力较强,性能上达到了准无误码(QEF)的标准。