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 |
US8682263(B2) |
申请公布日期 |
2014.03.25 |
申请号 |
US201113185391 |
申请日期 |
2011.07.18 |
申请人 |
D'SOUZA SANDEEP;AGARWAL BIPUL;SKYWORKS SOLUTIONS, INC. |
发明人 |
D'SOUZA SANDEEP;AGARWAL BIPUL |
分类号 |
H04B1/02 |
主分类号 |
H04B1/02 |
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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