A CMOS IF transceiver with reduced analog complexity

被引：8

作者：

Paulus, T ^{[1
]}

Somayajula, SS ^{[1
]}

Miller, TA ^{[1
]}

Trotter, B ^{[1
]}

Choi, K ^{[1
]}

Kerth, DA ^{[1
]}

机构：

[1] Crystal Semicond, Austin, TX 78744 USA

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1998年 / 33卷 / 12期

关键词：

analog-digital conversion; digital-analog conversion; digital radio; IF systems; mixed analog-digital integrated circuits; sigma-delta modulation; signal processing; transceivers;

D O I：

10.1109/4.735559

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：

Signal processing techniques are used to minimize the analog complexity in an intermediate-frequency (IF) transceiver. The receiver digitizes the IF signal directly by subsampling and complex bandpass delta-sigma modulation. A new loop filter is proposed for use in the complex delta-sigma. Digital demodulation and filtering are then used to extract the baseband information. The transmit section converts: baseband to IF through an all-digital signal path. A bandpass delta-sigma modulator quantizes the digital IF signal to 1 bit in order to simplify the IF output digital-to-analog converter/driver, The output driver provides analog finite impulse response filtering for quantization noise.

引用

页码：2154 / 2159

页数：6