TDMA (time-division multiple-access) time-slot sharing technique that results in high-power RF in the 800MHz to 900MHz or 1800MHz to 1900MHz bands.
The transmitter current, which can exceed 1A, pulses during a phone call at a repetition rate of 217Hz and pulse width of about 0.5ms.
If current pulses couple to the audio circuitry, the harmonic-rich 217Hz signal results in the audible buzz.
2010年6月26日 星期六
支持CMMB、DAB、T-DMB/DVB-T/DVB-H多款标准的移动数字电视接收芯片
摩威科技近日对外宣布,支持中国移动多媒体广播标准CMMB,数字音频广播标准DAB,以及国际移动电视标准T-DMB,DVB-T/DVB-H的MV2001G移动数字电视接收芯片将于近期投放市场。
看來也是SOC chip 而且重點又多了T-DMB,DVB-T/DVB-H 等數位電視的功能
應該是強勁的對手, 待後續觀察
摩威科技
http://www.mavrixtech.com/index.htm
摩威科技
http://www.mavrixtech.com/index.htm
Frontier Silicon reaches 10 million milestone
Frontier solution 達成了10 million 的成績
原文 http://www.frontier-silicon.com/media/releases/10/0210_10mAus.htm
Sales to double in the next three years driven by new market growth
原文 http://www.frontier-silicon.com/media/releases/10/0210_10mAus.htm
Sales to double in the next three years driven by new market growth
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