| 摘要 |
<p>A method and apparatus for an adjustable filter system (100) comprises a first integrated circuit (122) generating a reference value that represents a corner frequency of a filter (124) within the first integrated circuit (122); sending the reference value that represents the corner frequency of the filter (124) across an interface (112,120, 128) to a second integrated circuit (102); receiving, across the interface (112, 120, 128) from the second integrated circuit (102), a filter adjustment value; and changing the corner frequency of the filter (124) using the filter adjustment value to adjust a passband and a stopband of the filter. An alternative apparatus and method comprise in the second integrated circuit (102) a device for detecting a filter adjustment event, wherein the filter adjustment event comprises the receipt of the reference value; calculating a filter adjustment value to change a corner frequency of the filter (124) within the first integrated circuit (122); and sending the filter adjustment value across the interface (112, 120, 128) to the first integrated circuit (122).</p> |
