A Compact Mobile FM Transmitter with Automatic Embedded Antenna Tuning and Low Spurious Emission in 65nm CMOS

被引：0

作者：

Jiang, Xudong ^{[1
]}

Hu, Deyong ^{[1
]}

Tan, Ying Chow ^{[1
]}

Leow, Chin Heng ^{[1
]}

Chen, J. R. ^{[2
]}

Shu, Weimin ^{[1
]}

Wong, Sheng Jau ^{[1
]}

Shanaa, Osama ^{[1
]}

机构：

[1] MediaTek Singapore Pte Ltd, Singapore, Singapore

[2] MediaTek Ltd Inc, Hsinchu, Taiwan

来源：

PROCEEDINGS OF THE 2013 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE (A-SSCC) | 2013年

关键词：

D O I：

暂无

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：

A 76-108MHz FM Transmitter emits 120dB mu Vrms output signal using an embedded antenna on a PCB. A proposed on-chip calibration scheme digitally tunes an on-chip capacitor array to centre the embedded antenna resonance circuit with an external inductor at the desired FM channel. The transmitter achieves a 60dB audio SINAD, better than -45dB LO leakage and -50dB sideband suppression with -30/-55dB ACLR for 200kHz/400kHz offsets, respectively. The out of band spurious emission level for coexistence with other radio bands is very low and mostly around -102 dBm or less. A new on-chip T/R switch capable of handling 4Vpp signal is used to allow both FM TX and RX to share the same embedded antenna. The transmitter adds only 0.2mm boolean AND 2 die area overhead to an FM TRX SoC in 65nm CMOS and draws 10mA from a 4.2V battery.

引用

页码：201 / 204

页数：4

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