{"error":{"root_cause":[{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*HFA1113 pdf datasheet(850MHz,.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1"}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"recommend_keyword_search_v1","node":"c8Ry91qkQA6igO07LZRl5w","reason":{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*HFA1113 pdf datasheet(850MHz,.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1","caused_by":{"type":"illegal_argument_exception","reason":"expected ')' at position 33"}}}]},"status":400}
MICRF505L的典型应用:850MHz和950MHz ISM频段收发器。 MICRF505是一款真正的单芯片频移键控(FSK)收发器,适用于半双工,双向射频链路。多通道FSK收发器适用于UHF
2019-03-25 08:05
你好,我使用的芯片是TMS320C6416TGLZA8,该芯片上电复位后CPU时钟频率为850Mhz,还是CLKIN输入时钟频率?
2020-05-27 09:06
称为IF的信息(中频)用于上变频(中频信号以前被某个调制方案调制过音频或数字信息的基带信号)并通过注入频率范围大得多的本振信号从600MHz到1.2GHz进入载波输入。使用850MHz载波输入
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IEC TR61400-24 datasheet pdf
2009-11-27 09:43
*附件:RA8D1_Datasheet.pdf
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ARM720T datasheet, pdf[hide][/hide]
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LT5514的典型应用是可编程增益放大器(PGA),带宽从低频(LF)扩展到850MHz
2019-05-13 09:48
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2009-09-16 08:58