发明授权
- 专利标题: Sliding if transceiver architecture
- 专利标题(中): 如果收发器架构滑动
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申请号: US13691238申请日: 2012-11-30
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公开(公告)号: US08995505B2公开(公告)日: 2015-03-31
- 发明人: Faramarz Sabouri , Alberto Cicalini
- 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
- 代理商 Ramin Mobarhan
- 主分类号: H04B1/38
- IPC分类号: H04B1/38 ; H04B1/40
摘要:
Techniques for providing a transceiver with a sliding intermediate frequency (IF). In an aspect, a PLL generates a single local oscillator (LO) signal used for both up-conversion by a transmit (TX) signal path and down-conversion by a receive (RX) signal path, wherein the LO frequency is chosen as the TX carrier frequency. As the TX and RX carrier frequencies may generally differ by a variable amount, the RX signal path utilizing the (TX) LO frequency for down-conversion may be characterized as having a “sliding” IF. To accommodate the sliding IF receiver architecture, specific processing functions such as charge sampling, discrete-time analog band-pass filtering, and sub-sampling analog-to-digital conversion (ADC) are described.
公开/授权文献
- US20140153616A1 SLIDING IF TRANSCEIVER ARCHITECTURE 公开/授权日:2014-06-05
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