A 4 GHz fourth-order SiGe HBT band pass /spl Delta//spl Sigma/ modulator
A 4 GHz fourth-order SiGe HBT band pass /spl Delta//spl Sigma/ modulator
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4 GHz 四阶 SiGe HBT 带通 /spl Delta//spl Sigma/ 调制器
DOI:
10.1109/vlsic.1998.688074
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发表时间:
1998
期刊:
影响因子:
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通讯作者:
W. Snelgrove
中科院分区:
文献类型:
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作者:
Weinan Gao;J. A. Cherry;W. Snelgrove
Test results for a fourth-order band pass (BP) /spl Delta//spl Sigma/ modulator (/spl Delta//spl Sigma/M) are presented. The 0.5 /spl mu/m SiGe HBT design uses active LC resonators with Q enhancement and return-to-zero latches to drive the feedback DACs. The packaged circuit consumes 350 mW from a single 5 V supply when clocking at 4 GHz. Measured results indicate a maximum SNR of 53 dB, SFDR of 69 dB, and a dynamic range of 62 dB, all in a 4 MHz bandwidth.