公开(公告)号：EP4422069A1

公开(公告)日：2024-08-28

申请号：EP24156447.5

申请日：2024-02-07

申请人： Analog Devices, Inc.

发明人： XUESONG, Jiang

IPC分类号： H03B5/12 ,  H03H11/22 ,  H03H7/20 ,  H03K5/15

CPC分类号： H03B5/1237 ,  H03H11/22 ,  H03H7/20 ,  H03K5/15

摘要： Apparatus and methods for oscillator interface circuits with quadrature clock generation and phase correction are disclosed. In certain embodiments, a clock system includes an external oscillator that provides a differential input clock signal, and a semiconductor die that includes a first pin that receives a non-inverted component of the differential input clock signal and a second pin that receives an inverted component of the differential input clock signal. The semiconductor die further includes an oscillator interface circuit that includes a first controllable resistor and a first controllable capacitor connected in series between the first pin and the second pin, and a second controllable resistor and a second controllable capacitor connected in series between the second pin and the first pin.