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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A 65-nm GSM/GPRS/EDGE SoC With Integrated BT/FM
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A 65-nm GSM/GPRS/EDGE SoC With Integrated BT/FM

机译：具有集成BT / FM的65纳米GSM / GPRS / EDGE SoC

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摘要

A quad-band GSM/GPRS/EDGE cellular system, implemented in 65-nm CMOS, is integrated in a multimedia SoC with BT and FM. A low-IF receiver with digital IRR tracking is selected for its smaller area and better noise figure. The receiver achieves a sensitivity of $-$ 110 dBm, an IIP3 of $-$ 9.5 dBm, and a calibrated image rejection ratio of 65 dBc, while consuming 61 mA. The polar transmitter architecture is chosen for its SAW-less TX capability, smaller area, and low current consumption. It achieves an ORFS (output radio frequency spectrum) of $-$68 dB and $-$64 dB at 400 kHz in GMSK and EDGE mode, respectively, while consuming 61 mA. The loop gain normalization, dc offset and AM/PM delay of the polar system are compensated to be better than 1% error, 1 mV, and 1.9 ns within 170 $mu$s, respectively. Several techniques are employed to minimize interference coupling within the SoC; these include frequency planning, circuit implementation, transceiver architecture optimization, and digital clock selection. The measured sensitivity and the output spectrum of the three wireless systems under full-feature phone operation are virtually unchanged.
机译：在65纳米CMOS中实现的四频GSM / GPRS / EDGE蜂窝系统已集成在具有BT和FM的多媒体SoC中。选择具有数字IRR跟踪功能的低中频接收器是因为其面积更小，噪声系数更好。该接收器在消耗61 mA电流的同时，可实现$-$ 110 dBm的灵敏度，$-$ 9.5 dBm的IIP3和65 dBc的校准镜像抑制比。选择极性发射机架构是因为其无SAW的TX功能，较小的面积和较低的电流消耗。在GMSK和EDGE模式下，在400 kHz时，其ORFS（输出射频频谱）分别达到$-$ 68 dB和$-$ 64 dB，同时消耗61 mA电流。极性系统的环路增益归一化，直流偏移和AM / PM延迟分别在170μs内被补偿为优于1％误差，1 mV和1.9 ns。采用了几种技术来最小化SoC内部的干扰耦合。其中包括频率规划，电路实现，收发器架构优化和数字时钟选择。在全功能电话操作下，三个无线系统的灵敏度和输出频谱的测量值实际上没有变化。

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