发明授权
- 专利标题： Low-power RX synthesizer sharing TX hardware
- 专利标题（中）： 低功耗RX合成器共享TX硬件
-
申请号： US14607775申请日： 2015-01-28
-
公开(公告)号： US09258021B1公开(公告)日： 2016-02-09
- 发明人: Yashar Rajavi , Alireza Khalili , Muhammad Adnan
- 申请人： QUALCOMM Incorporated
- 申请人地址： US CA San Diego
- 专利权人： QUALCOMM Incorporated
- 当前专利权人： QUALCOMM Incorporated
- 当前专利权人地址： US CA San Diego
- 代理机构： Mahamedi Paradice LLP
- 主分类号： H04B1/40
- IPC分类号： H04B1/40 ; H04B1/04
摘要：
An analog front-end (AFE) for a communications device includes a low-power frequency synthesizer with reduced footprint. The AFE includes a first frequency synthesizer and a second frequency synthesizer. The first frequency synthesizer is coupled to a transmit (TX) chain and to a receive (RX) chain of the AFE. The first frequency synthesizer is to generate a first local oscillator (LO) signal for transmitting or receiving carrier signals when the device is in a normal operating mode. The second frequency synthesizer is coupled to the RX chain and shares one or more components of the TX chain. The second frequency synthesizer is to utilize the one or more shared components to generate a second LO signal for receiving carrier signals when the device operates in a low-power mode. For example, the one or more shared components may include a voltage source and/or one or more inductors.
信息查询
