发明申请
US20050093620A1 INTEGRATED CIRCUIT AND METHOD FOR INTERFACING TWO VOLTAGE DOMAINS USING A TRANSFORMER 失效
使用变压器接合两个电压域的集成电路和方法

INTEGRATED CIRCUIT AND METHOD FOR INTERFACING TWO VOLTAGE DOMAINS USING A TRANSFORMER
摘要:
An integrated circuit designed to reduce on-chip noise coupling. In one embodiment, circuit (60) includes the following: a circuit transformer (62) capable of converting a noise sensitive input reference clock signal to an output signal having a voltage compatible with a predetermined sink voltage logic level; and a biased receiver network (64) having a PFET current mirror (74) coupled with a NFET current (72), the biased receiver transistor network designed to multiply the transformer signal to offset a mutual coupling loss of the transformer. In at least one alternative embodiment, the input reference clock signal originates at an off-chip clock generator circuit (42) and the output signal from receiver (64) is input to a PLL (44). In another alternative embodiment, the transformer is a monolithic integrated transformer. Another alternative embodiment of the present invention is a method of reducing on-chip noise coupling.
信息查询
0/0