- 专利标题： RF transmitter using digital-to-RF conversion
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申请号： US10988202申请日： 2004-11-12
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公开(公告)号： US20050111573A1公开(公告)日： 2005-05-26
- 发明人: Niall Shakeshaft , Jussi Vepsalainen , Petri Eloranta , Pauli Seppinen
- 申请人： Niall Shakeshaft , Jussi Vepsalainen , Petri Eloranta , Pauli Seppinen
- 专利权人： Nokia Corporation
- 当前专利权人： Nokia Corporation
- 主分类号： H04B1/04
- IPC分类号： H04B1/04 ; H04B1/69 ; H04L20060101 ; H04L27/36 ; H04Q7/20
摘要：
An RF transmitter having two digital to RF-conversion devices that combine the D/A conversion function and the upconversion function by a RF-carrier or IF-signal. The device comprises a plurality of parallel unit cells, each of which is a mixer cell type converter having a differential data switch section connected in series to a differential LO-switch pair. The differential LO-switch is further connected in series to a current source. Each unit cell is adapted to receive a control voltage indicative of a data signal value.
公开/授权文献
- US06980779B2 RF transmitter using digital-to-RF conversion 公开/授权日：2005-12-27
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