发明名称 |
Ultra low-power integrated circuit for pseudo-baseband down-conversion of GPS RF signals |
摘要 |
A GPS receiver downconverter combines on a single integrated circuit, a first super-heterodyne mixer, a voltage controlled oscillator, a phase locked loop, a pair of quadrature mixers and a pair of quantizers with in-phase and quadrature-phase sampler outputs operable at twenty-five MHz and 2.5 MHz. Emitter-coupled logic and special low-voltage bipolar semiconductor technology are combined for 3.3 volt operation at under one hundred milliwatts.
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申请公布号 |
US5564098(A) |
申请公布日期 |
1996.10.08 |
申请号 |
US19940305356 |
申请日期 |
1994.09.13 |
申请人 |
TRIMBLE NAVIGATION LIMITED |
发明人 |
RODAL, ERIC B.;WAGNER, GARY L.;LAU, CHUNG Y. |
分类号 |
G01S1/00;H03D7/16;H04B1/26;(IPC1-7):H04B1/26 |
主分类号 |
G01S1/00 |
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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