| 发明名称 |
filter circuit and semiconductor device |
| 摘要 |
A filter circuit includes a low-pass filter and a calibration circuit calibrating a frequency characteristic of the low-pass filter. The calibration circuit includes a negative feedback circuit and a control circuit.
|
| 申请公布号 |
US7619465(B2) |
申请公布日期 |
2009.11.17 |
| 申请号 |
US20080125609 |
申请日期 |
2008.05.22 |
| 申请人 |
FUJITSU MICROELECTRONICS LIMITED |
发明人 |
KONDO HIDEAKI;SAWADA MASARU;MURAKAMI NORIO;MASUI SYOICHI |
| 分类号 |
H03K5/00 |
主分类号 |
H03K5/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
