发明名称 |
RECONFIGURABLE RECEIVER CIRCUITS FOR TEST SIGNAL GENERATION |
摘要 |
Receiver circuits that can be reconfigured to generate test signals in a wireless device are disclosed. In an exemplary design, an apparatus includes a mixer and an amplifier. The mixer downconverts an input radio frequency (RF) signal based on a local oscillator (LO) signal in a first mode. The amplifier, which is formed by at least a portion of the mixer, amplifies the LO signal and provides an amplified LO signal in a second mode. In another exemplary design, an apparatus includes an amplifier and an attenuator. The amplifier receives and amplifies an input RF signal in a first mode. The attenuator, which is formed by at least a portion of the amplifier, receives and passes an LO signal in a second mode. |
申请公布号 |
EP2929638(B1) |
申请公布日期 |
2017.01.25 |
申请号 |
EP20130818055 |
申请日期 |
2013.12.10 |
申请人 |
Qualcomm Incorporated |
发明人 |
LEUNG, Lai Kan;NARATHONG, Chiewcharn;HU, Jianyun;FENG, Yunfei |
分类号 |
H04B17/21;H04B1/30;H04B17/29 |
主分类号 |
H04B17/21 |
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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