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Adaptive Blocker Rejection Continuous-Time 61 ADC for Mobile WiMAX Applications
一种用于移动WiMAX应用的自适应阻塞抑制连续时间61 ADC
71 dB动态范围, 65 dB峰值SNDR, 68 dB峰值SNR, 10 MHz信号带宽, 18 mW功耗, 1.2 V电源
自适应阻塞抑制模数转换连续时间ADCWiMAXCMOS技术
▸自适应阻塞检测器重新配置ADC环路架构以避免强干扰下的过载
▸提高接收器通道选择性和灵敏度而不增加动态范围要求
▸在阻塞抑制模式下，ADC可以承受相邻通道的30 dBc阻塞
Abstract
an Lee , Student Member , IEEE ,
Tino Copani, Associate Member , IEEE, Seyfi Bazarjani , Member , IEEE, Sayfe Kiaei , Fellow, IEEE, and
Bertan Bakkaloglu, Senior Member , IEEE
Abstract—An adaptive blocker-rejection wideband contin-
uous-time (CT) sigma-delta /40/6/1/41analog-to-digital converter
(ADC) is presented. An integrated blocker detector reconfigures
the ADC loop architecture to avoid overloading in the presence
of strong interferers, improving receiver channel selectivity and
sensitivity