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Silicon Labs公司的Si446x系列是高性能低電流的119 -1050 MHz收發器,是EZRadioPRO®系列中一員,包括完整的發送器和接收器.靈敏度為-126dBm,Si4464的工作頻率119–960 MHz,最大輸出功率+20dBm,PA支持+27dBm或+30dBm,采用(G)FSK, 4(G)FSK, (G)MSK,OOK和ASK調制,數據速率從表面上100bps到1Mbps,工作電壓1.8V-3.6V,關斷電流30nA,待機電流50nA,主要用在智能電表(802.15.4g & MBus),遙控,家庭安全和告警,車庫和大門開啟,遙測,家庭自動化,傳感器網絡,健康監視等.本文介紹了Si446x主要特性,方框圖,Silicon Labs和RFMD公司合作的智能電網應用參考設計,以及4463-TCE30E915R-EK RF測試卡電路圖,材料清單和PCB布局圖. Silicon Laboratories’Si446x devices are high-performance, low-current transceivers covering the sub-GHz frequency bands from 119 to 1050 MHz. The radios are part of the EZRadioPRO® family, which includes a complete line of transmitters, receivers, and transceivers covering a wide range of applications. All parts offer outstanding sensitivity of –126 dBm while achieving extremely low active and standby current consumption. The Si4464 offers continuous frequency coverage across the entire sub-GHz band from 119–960 MHz with extremely fine frequency resolution. The Si4463 includes optimal phase noise, blocking, and selectivity performance for narrow band and licensed band applications, such as FCC Part90 and 169 MHz wireless Mbus. The 60 dB adjacent channel selectivity with 12.5 kHz channel spacing ensures robust receive operation in harsh RF conditions, which is particularly important for narrowband operation. The Si4464/63 offers exceptional output power of up to +20 dBm with outstanding TX efficiency. The high output power and sensitivity results in an industry-leading link budget of 146 dB allowing extended ranges and highly robust communication links. The Si4460 active mode TX current consumption of 18 mA at +11 dBm and RX current of 10 mA coupled with extremely low standby current and fast wake times ensure extended battery life in the most demanding applications. The Si4464/63 can achieve up to +27 dBm output power with built-in ramping control of a low-cost external FET. The devices are compliant with all worldwide regulatory standards: FCC, ETSI, and ARIB. All devices are designed to be compliant with 802.15.4g and WMbus smart metering Standards. Si446x主要特性: Frequency range = 119–1050 MHz Receive sensitivity = –126 dBm Modulation (G)FSK, 4(G)FSK, (G)MSK OOK and ASK Max output power +20 dBm (Si4464/63) +16 dBm (Si4461) +13 dBm (Si4460) PA support for +27 or +30 dBm Low active power consumption 10/13 mA RX 18mA TX at +10 dBm (Si4460) Ultra low current powerdown modes 30 nA shutdown, 50 nA standby Data rate = 100 bps to 1 Mbps Fast wake and hop times Power supply = 1.8 to 3.6 V Excellent selectivity performance 60 dB adjacent channel 75 dB blocking at 1 MHz Antenna diversity and T/R switch control Highly configurable packet handler TX and RX 64 byte FIFOs Auto frequency control (AFC) Automatic gain control (AGC) Low BOM Low battery detector Temperature sensor 20-Pin QFN package IEEE 802.15.4g compliant FCC Part 90 Mask D, FCC part 15.247, 15,231, 15,249, ARIB T-108, T-96, T-67,RCR STD-30, China regulatory ETSI Class-I Operation with SAW Si446x應用: Smart metering (802.15.4g & MBus) Remote control Home security and alarm Telemetry Garage and gate openers Remote keyless entry Home automation Industrial control Sensor networks Health monitors Electronic shelf labels 
圖1.Si446x系列方框圖
圖2.Si4463單天線和RF開關應用電路圖 Silicon Labs和RFMD公司的智能電網應用參考設計
圖3.4463-TCE30E915R-EK RF測試卡外形圖 Silicon Labs and RFMD have collaborated to jointly produce a reference design that features the Silicon labs EZRadioPRO Si4464/63 sub GHz ISM band radio transceivers and the RFMD® RF6569 front end module (FEM) optimized for smart grid automatic meter reading (AMR) applications that want to economically boost output power to +30 dBm. The 4463-TCE30E915R-EK RF test card features the EZRadioPRO Si4463 transceiver operating at 915 MHz and utilizes the RFMD RF6569 FEM which includes an integrated PA, TX harmonic filtering, SPDT switch and RX balun. Following the reference design, a customer can successfully complete a design based upon both the EZRadioPRO Si4464 or Si4463 transceiver and the RFMD RF6569 FEM operating in the 868 MHz or 902 to 928 MHz ISM bands.
圖4.4463-TCE30E915R-EK電路圖
圖5.4463-TCE30E915R-EK PCB元件布局圖
圖6.4463-TCE30E915R-EK PCB布局圖(頂層)
圖7.4463-TCE30E915R-EK PCB布局圖(底層) 4463-TCE30E915R-EK材料清單見: 詳情請見: 
Si4464-63-61-60.pdf
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