发明名称 |
PROGRAMMABLE TRANSMIT CONTINUOUS-TIME FILTER |
摘要 |
A programmable-current transmit continuous-time filter (TX-CTF) system can be included in a radio frequency (RF) transmitter. The input of the TX-CTF can receive a baseband transmission signal, and the output of the TX-CTF can be provided to an upconversion mixer for conversion to RF for transmission. The TX-CTF includes amplifier circuitry and passive circuitry that together define the filter parameters. The TX-CTF further includes programmable current circuitry that provides a programmable bias current to the amplifier circuitry. The TX-CTF system also includes control logic that receives one or more transmitter control signals and, in response, generates signals that control the bias current provided to the TX-CTF. |
申请公布号 |
WO2010082957(A1) |
申请公布日期 |
2010.07.22 |
申请号 |
WO2009US54417 |
申请日期 |
2009.08.20 |
申请人 |
SKYWORKS SOLUTIONS, INC.;D'SOUZA, SANDEEP;AGARWAL, BIPUL |
发明人 |
D'SOUZA, SANDEEP;AGARWAL, BIPUL |
分类号 |
H04B1/04;H03K5/1252 |
主分类号 |
H04B1/04 |
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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