
最近流行這種東東, 數位展頻式無線通訊,美商 Cypress corp (塞普瑞斯) 最近送幾個樣品給我玩..
他們最近主推這一系列的應用晶片 Programmable Radio-on-a-Chip 這東西立刻讓我聯想到 R/C 上的最新 DSM系統........
於是我又發揮我的特長(關聯性), 沒想到 spektrumrc 真的就是採同一款晶片所設計的.
唉~ 慢一步.
注意,紅字部份為 Cypress 的料號, 可見全部都來自同一系列 IC 產品
(by wpjwpj)
以下是 spektrumrc DSM 內部詳圖與主要諸元:
接收模組上PCB板


PCB 背面


接收模組 RF 高頻子板PCB


RF 子板背面


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發射模組與RF子板:


背面


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接收諸元,我引用原文意思:
• 2.4-GHz radio transceiver
• Operates in the unlicensed Industrial, Scientific, and Medical (ISM) band (2.4 GHz-2.483 GHz)
• -90-dBm receive sensitivity
• Up to 0 dBm output power
• Range of up to 10 meters or more
• Data throughput of up to 62.5 kbits/sec
• Highly integrated low cost, minimal number of external components required
• Dual DSSS reconfigurable baseband correlators
• SPI microcontroller interface (up to 2-MHz data rate)
• 13-MHz ± 50-ppm input clock operation
• Low standby current < 1 µA
• Integrated 30-bit Manufacturing ID
• Operating voltage from 2.7V to 3.6V
• Operating temperature from 0° to 70°C
• Offered in a small footprint 48 Quad Flat Pack No
• about 6 USD in larger quantities (這只是參考價)
發射諸元, 同樣我引用原英文:
Dual Mode IEEE802.11b & IEEE802.11g
All RF ports matched to 50 Ω
Integrated PA, TX Filter, T/R and Diversity switch
Integrated high performance power detector
20 dBm O/P Power, 802.11b, 11 Mbps @ 225 mA and ACPR-1 = -37 dBc, ACPR-2 = -56 dBc
18 dBm O/P Power, 802.11g, EVM = 2.5 %, 54 Mbps @ 185 mA
Single supply voltage: 2.7 V to 3.6 V
Exceptional temperature stability
Small MSL3 package (5.5 mm x 7.0 mm x 1.2 mm)
cost about 2 USD in large quantities.(這只是當參考)
OK,

~~ spektrumrc DSM 我完全沒用過, 也沒有心得 以後再談吧 ~~
這種東西 ,你只要把它想成 無線網路卡就對了,自然價格就...
「該帖子被 wpjwpj 在 2005/7/6 上午 11:26:36 編輯過」