A direct-conversion receiver IC for WCDMA mobile systems

被引：21
|
作者：
Reynolds, SK [1 ]
Floyd, BA [1 ]
Beukema, T [1 ]
Zwick, T [1 ]
Pfeiffer, U [1 ]
Ainspan, H [1 ]
机构：
[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA
来源：
IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2003年 / 38卷 / 09期
关键词：
code division multiaccess; land mobile radio; cellular systems; receivers; mixers; low noise amplifiers (LNAs); BiCMOS; direct conversion;
D O I：
10.1109/JSSC.2003.815914
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A prototype design of a 2.7-3.3-V 14.5-mA SiGe direct-conversion receiver IC for use in third-generation wide-band code-division multiple-access (3G WCDMA) mobile cellular systems has been completed and measured. The design includes a by-passable low-noise amplifier (LNA), a quadrature downconverter, a local-oscillator frequency divider and quadrature generator, and variable-gain baseband amplifiers integrated on chip. The design achieves a cascaded, LNA-referred noise figure (including an interstage surface acoustic wave filter) of 4.0 dB, an in-band IIP3 of -18.6 dBm, and local-oscillator leakage at the LNA input of -112 dBm. The static sensitivity performance of the receiver IC is characterized using a software baseband processor to compute link bit-error rate.
引用
收藏
页码：1555 / 1560
页数：6
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