0.8 - 1.9 ghz波段CMOS直接数字射频正交调制器

2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2015-08-01 DOI:10.1109/RFIT.2015.7377916

N. Suematsu, O. Wada, S. Kameda, T. Takagi, K. Tsubouchi

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引用次数: 0

摘要

设计并制作了一个0.8 ~ 1.9 GHz的直接数字射频(RF)正交调制器。设计I/Q数字输入信号的位数和CLK频率，以满足0.9/1.9GHz W-CDMA终端所需的EVM、ACPR/NACPR和系统带宽。该正交调制器的EVM小于-22.7dB, ACP/NACP小于-36.1dBc，无杂散范围为197MHz(比W-CDMA系统带宽60MHz宽)，8位、100Msps的I/Q数字输入信号，直流功耗为10mW。

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A 0.8–1.9GHz-band CMOS direct digital RF quadrature modulator

A 0.8-1.9 GHz direct digital radio frequency (RF) quadrature modulator is designed and fabricated in 90 nm CMOS process. The bit number and the CLK frequency of I/Q digital input signals are designed to satisfy the required EVM, ACPR/NACPR and system bandwidth for 0.9/1.9GHz W-CDMA terminals. The fabricated quadrature modulator performs EVM of less than -22.7dB, ACP/NACP of less than -36.1dBc and spurious free range of 197MHz (wider than the W-CDMA system bandwidth of 60MHz) with 8-bit, 100Msps I/Q digital input signals and the d.c. power consumption of 10mW.

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2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)

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