发明名称 |
Method of reducing a frequency-response peaking of a magneto-resistive preamplifier in a mass data storage device, or the like |
摘要 |
A mass data storage device system (70) and method for providing frequency compensation within it are disclosed. The system has a moving media (72) that contains signals encoded in oriented magnetic domains that are detected by a magneto-resistive head (78) positioned in proximity thereto. An amplifier stage (100 or 120) is connected to sense the change in the electrical characteristic of the head, and capacitors (102-105 or 126-131) are operatively connected within the amplifier stage to produce two or three poles in a frequency response of the amplifier stage to reduce a second order frequency response of the head. Preferably, the poles have substantially identical pole locations.
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申请公布号 |
US6631044(B1) |
申请公布日期 |
2003.10.07 |
申请号 |
US20000702643 |
申请日期 |
2000.10.31 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
CHOI DAVY H. |
分类号 |
G11B5/012;G11B5/02;G11B5/035;G11B5/09;G11B20/10;H03F3/45;(IPC1-7):G11B5/02 |
主分类号 |
G11B5/012 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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