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| Si4455低功耗小于1GHz EZRADIO收發器開發方案 |
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| 文章來源： 更新時間：2014/11/19 14:17:00 |
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Silas公司的Si4455是容易使用的低功耗小于1GHz的EZRADIO收發器,頻率范圍283–960 MHz,輸出功率+13dBm,接收靈敏度-116dBm,采用FSK和OOK調制,工作電壓1.8 到3.6 V,具有自動頻率控制(AFC)和自動增益控制(AGC),主要用于遙控,家庭安全和告警,車庫和大門開啟,無線鑰匙,家庭自動化,工業控制,傳感器網絡,健康監視器和遙感勘測.本文介紹了Si4455主要特性,功能框圖,典型應用電路,以及EZRadio Si4455無線開發套板主要特性和電路圖以及4455-PCE10D434M RF Pico板材料清單.
Silicon Laboratories’Si4455 is an easy-to-use, low current, sub-GHz EZRadio® transceiver. Covering all major bands, it combines plug-and-play simplicity with the flexibility needed to handle a wide variety of applications. The compact 3x3 mm package size combined with a low external BOM count makes the Si4455 both space efficient and cost effective. The +13 dBm output power and excellent sensitivity of –116 dBm allows for a longer operating range, while the low current consumption of 18 mA TX (at 10 dBm), 10 mA RX, and 50 nA standby, provides for superior battery life. By fully integrating all components from the antenna to the GPIO or SPI interface to the MCU, the Si4455 makes realizing this performance in an application easy. Design simplicity is further exemplified in the Wireless Development Suite (WDS) user interface module. This configuration module provides simplified programming options for a broad range of applications in an easy to use format that results in both a faster and lower risk development. The Si4455 is capable of supporting major worldwide regulatory standards such as FCC, ETSI, ARIB and China regulatory standards.
Si4455主要特性:
Frequency range = 283–960 MHz
Receive sensitivity = –116 dBm
Modulation
(G)FSK
OOK
Max output power = +13 dBm
Low active power consumption
10 mA RX
18 mA TX @ +10 dBm
Low standby current = 50 nA
Max data rate = 500 kbps
Power supply = 1.8 to 3.6 V
TX and RX 64 byte FIFOs
Automatic frequency control (AFC)
Automatic gain control (AGC)
Integrated battery voltage sensor
Packet handling including preamble, sync word detection, and CRC
Low BOM
20-Pin 3x3 mm QFN package
Si4455應用:
Remote control
Home security and alarm
Telemetry
Garage and gate openers
Remote keyless entry
Home automation
Industrial control
Sensor networks
Health monitors
圖1. Si4455功能框圖
圖2. Si4455應用電路圖
EZRadio Si4455無線開發板
EZRadio® Si4455 Wireless Development Kit 4455-434-PDK, 4455-868-PDK or 4455-915-PDK
This user’s guide describes the development kits of the Silicon Labs’ EZRadio® product family. Each kit contains two RF nodes based on the Wireless Motherboard (WMB) to support evaluation and development of sub-GHz RF links with the different EZRadio ICs. Table 1 lists the boards of the kits that use the latest C2A revision of the EZRadio ICs. Table 2 lists the boards of the obsolete kits that use the previous B1B revision of the EZRadio ICs.
圖3. 8位無線開發主板外形圖
Silicon Labs’Wireless Development Kit contains everything you need to familiarize yourself with and evaluate the Si4455 transceiver and LCD baseboard. The kit has three versions: one for the 434 MHz band, the 868 MHz band and the 915 MHz band.
8位無線開發主板包括:
(2) Si4455 RF Pico Boards
(2) LCD MSC-WMB930 Motherboards
(2) C8051F930 Pico Boards
(2) Whip Antennas
(4) AA Battery
(1) EZRadio Kit User’s Guide
EZRadio開發板分類表:
4455CLED-868-PER Pico Board Design Files
圖4. 8位無線開發主板電路圖(1)
圖5. 8位無線開發主板電路圖(2)
圖6. 8位無線開發主板電路圖(3)
圖7. 8位無線開發主板電路圖(4)
圖8.4455-PCE10D434M RF Pico板電路圖
圖9. 4012-PSC10B915 RF Pico板電路圖
圖10. UPPI-930-RF MCU Pico板電路圖 |
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