发明名称 |
Voltage controlled variable resistor suitable for large scale signal application |
摘要 |
A voltage controlled variable resistor circuit is configured to variably attenuate a variable source signal. A fixed attenuation circuit is coupled to receive the variable source signal and output an attenuated variable source signal. The variable source signal is further applied across a variable resistive divider formed of a fixed resistive circuit and a variable resistive circuit. The variable resistive circuit has a first input configured to receive the attenuated variable source signal and a second input configured to receive a variable resistance control signal. The variable resistive circuit is configured to have a resistance which is variable in response to the attenuated variable source signal and the variable resistance control signal. |
申请公布号 |
US8648641(B2) |
申请公布日期 |
2014.02.11 |
申请号 |
US201213678782 |
申请日期 |
2012.11.16 |
申请人 |
STMICROELECTRONICS (SHENZHEN) R&D CO. LTD. |
发明人 |
ZHA GANG |
分类号 |
H03L5/00 |
主分类号 |
H03L5/00 |
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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