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| Si446x高性能低電流無線收發器解決方案 |
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| 文章來源： 更新時間：2015/4/1 9:34:00 |
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Silabs公司的Si446x是頻率范圍119到1050MHz的高性能低電流無線收發器,無線部分是EZRadioPRO系列,包括發送器,接收器,靈敏度-126dBm,輸出功率為+20 dBm (Si4464/63),+16 dBm (Si4461),+13 dBm (Si4460).數據速率100bps-1Mbps,工作電壓1.8V-3.6V,主要用于智能測試(802.15.4g & MBus),遙控,家庭安全和告警,車庫門開啟,家庭自動化,工業控制,傳感器網絡,健康監視器等.本文介紹了Si446x主要特性, 框圖和幾種應用電路,以及Si4461 868 MHz無線開發板EZRadioPRO主要特性和電路圖.
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 Si4463/61/60 offers frequency coverage in all major bands. The Si4464 offers frequency coverage in bands not covered by Si4463/61/60. Typically, these are non-standard frequencies or licensed frequency bands. The Si446x 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 narrow band 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 +10 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 can meet worldwide regulatory standards:
FCC, ETSI, and ARIB. All devices are designed to be compliant with 802.15.4g and WMbus smart metering standards. The devices are highly flexible and can be configured via the Wireless Development Suite (WDS) available on the Silicon Labs web site.
Si446x主要特性:
Frequency range = 119–1050 MHz
Receive sensitivity = –126 dBm
Modulation
(G)FSK, 4(G)FSK, (G)MSK ,OOK
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
18 mA 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系列框圖
圖2.Si4461直接連接應用電路圖
圖3.Si4463單個天線和RF開關應用電路
Si4461 868 MHz無線開發板EZRadioPRO
The Si4461 development kit provides the tools necessary to evaluate using the Si4461 EZRadioPRO low current RF transceiver operating at the 868 MHz frequency. Silicon Labs also offers the 4463C-915-PDK which is a similarly complete development kit using the Si4461 EZRadioPRO low current transceiver operating at the 868 MHz frequency.
Both kits are based on a new C8051F930 motherboard (WMB-F930-PDK) and new RF pico boards. The WMB-F930-PDK provides standalone demonstration and software development platform for EZRadioPRO wireless devices
The development kit includes:
(2) C8051F930 Motherboards
(2) Si4461 868 MHz Test Cards
(2) C8051F930 MCU Cards
(2) 868 MHz Antennas
(2) USB mini cables
(4) AA batteries
This user’s guide describes the development kits of the EZRadioPRO wireless development kit family. Each kit contains two RF nodes based on the Wireless Motherboard to support evaluation and development of sub-GHz RF links with the different EZRadioPRO devices. Table 1 lists the RF pico boards of the kits that use the latest C2A revision of the EZRadioPRO ICs. Table 2 lists the RF pico boards of the obsolete kits that use the previous B1B revision of the EZRadioPRO ICs. Table 3 lists the content that is common to all kits.
圖4.無線主板元件頂層分布圖
圖5. 8位無線主板平臺外形圖
圖6. 無線主板外形圖
圖7. 無線主板電路圖(1)
圖8. 無線主板電路圖(2)
圖9. 無線主板電路圖(3)
圖10. 無線主板電路圖(4)
圖11. RF Pico板電路圖(1)
圖12. UPPI-930-RF MCU Pico板電路圖(1)
圖13. UPPI-930-RF MCU Pico板電路圖(2) |
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