Si4430/SI4431-B1-FMR/32 的高度集成降低了 BOM 成本，同時簡化整個系統設計。極低的接收靈敏度(–121 dBm) 加上行業領先的 +20 dBm 輸出功率可確保擴展范圍和改進的鏈路性能。內置天線分集和對跳頻的支持可用于進一步擴展范圍和增強表現。
Si4430/31/32 提供高級無線電功能，包括連續頻率以 156 Hz 或 312 Hz 的步長覆蓋 240–960 MHz，允許精確調諧控制。附加系統功能，例如自動喚醒定時器、低電池檢測器、64 字節 TX/RX FIFO、自動數據包處理和前導碼檢測降低總電流消耗并允許使用更低成本系統 MCU。集成溫度傳感器、通用 ADC、上電復位 (POR) 和 GPIO 進一步降低了整體系統成本和尺寸。
Si4430/SI4431-B1-FMR/32 的數字接收架構具有高性能 ADC和基于 DSP 的調制解調器執行解調、過濾和數據包處理以提高靈活性和性能。直接數字傳輸調制和自動 PA 功率斜坡確保精確的發射調制并減少頻譜擴展，確保符合全球法規包括 FCC、ETSI、ARIB 和 802.15.4d 法規。提供了一個易于使用的計算器來快速配置無線電設置，簡化客戶的系統設計并縮短上市時間。
特征：SI4431-B1-FMR
頻率范圍
240–930 MHz (Si4431/32)
900–960 MHz (Si4430)
靈敏度 = –121 dBm
輸出功率范圍
+20 dBm Max (Si4432)
+13 dBm 最大值 (Si4430/31)
低功耗
18.5 mA 接收
30 mA @ +13 dBm 傳輸
85 mA @ +20 dBm 傳輸
數據速率 = 0.123 至 256 kbps
FSK、GFSK 和 OOK 調制
電源 = 1.8 至 3.6 V
超低功耗關機模式
數字RSSI
喚醒定時器
自動頻率校準（AFC）
上電復位（POR）
天線分集和TR開關
控制
可配置的數據包處理程序
前導檢測器
TX 和 RX 64 字節 FIFO
低電量檢測器
溫度傳感器和 8 位 ADC
–40 至 +85 °C 溫度范圍
集成穩壓器
跳頻能力
片上晶體調諧
20-Pin QFN 封裝
低 BOM
應用：SI4431-B1-FMR
遙控
家庭安防報警
遙測
個人數據記錄
玩具控制
胎壓監測
無線PC外設
遠程抄表
遙控無鑰匙進入
家庭自動化
工業控制
傳感器網絡
健康監測
標簽閱讀器
制造商: Silicon Laboratories
產品種類: 射頻收發器
RoHS: 詳細信息
類型: Sub-GHz
封裝: Reel
封裝: Cut Tape
商標: Silicon Labs
濕度敏感性: Yes
產品類型: RF Transceiver
系列:SI4431-B1-FMR
工廠包裝數量: 2500
子類別: Wireless & RF Integrated Circuits
技術: Si
商標名: EZRadioPRO
以下物料均有現貨庫存：SI4431-B1-FMR
STM32F101RBT6
STM32F103CBT6
STM32F103C8T6
STM32F103R8T6
STM32F103VBT6
STM32F103RBT6
STM32F103VCT6
STM32F103ZET6
STM32F103VET6
STM32F103RET6
STM32F103RCT6
STM32F103RGT6
STM32F103RCY6TR
STM32F103T8U6
STM32F103VGT6
STM32F103ZGT6
STM32F105RBT6
STM32F105RCT6
STM32F105R8T6
STM32F105VCT6
STM32F107VCT6
STM32F107RCT6
STM32F100R8T6B
STM32F100C6T6B
STM32F100VCT6B
STM32F100RBT6B
STM32F100C8T6B
STM32F100C4T6B
SI4431-B1-FMR
STM32F215RGT6
STM32F205RGT6
STM32F205RET6
STM32F205RCT6
STM32F205VGT6
STM32F205VET6
STM32F205VCT6
STM32F205ZET6
STM32F205ZGT6
STM32F207VCT6
STM32F207VGT6
STM32F207VET6
STM32F207ZET6
STM32F207ZGT6
STM32F373CCT6
STM32F301K8T6
STM32F302C8T6
STM32F302CBT6
STM32F302RCT6
STM32F302RBT6
STM32F302K8U6
STM32F302VET6
STM32F302VDT6
STM32F302VCT6
STM32F303CBT6
STM32F303CCT6
STM32F303RBT6
STM32F303RCT6
STM32F303RET6
STM32F303VCT6
STM32F303VET6
STM32F303ZET6
STM32F411CEU6
STM32F411CCU6TR
STM32F411RCT6
STM32F411RET6
STM32F411VET6
STM32F412RET6
STM32F413VGT6
STM32F415RGT6
STM32F415VGT6
STM32F410CBU6
STM32F410RBT6
STM32F427IGT6
STM32F427VIT6
STM32F427VGT6
STM32F427ZGT6
STM32F427ZIT6
STM32F429BIT6
STM32F429IIT6
STM32F429IGT6
STM32F429VGT6
STM32F429VIT6
STM32F429VET6
STM32F429ZGT6
STM32F429ZIT6
STM32F429ZET6
STM32F446RET6
STM32F446RCT6
STM32F446VET6
STM32F446VCT6
STM32F446ZET6
STM32F446ZEJ6
STM32F469NIH6
STM32F401CEU6
STM32F401CBU6
STM32F401RCT6
STM32F401RBT6
STM32F401RET6
STM32F405RGT6
STM32F405VGT6
STM32F405ZGT6
STM32F407IGT6
STM32F407IGH6
STM32F407IET6
STM32F407VGT6
STM32F407VET6
STM32F407ZET6
STM32F407ZGT6
STM32F407ZGT7
STM32F400CBT6
STM32F722RET6
STM32F730R8T6
STM32F730V8T6
STM32F746VGT6
STM32F756VGT6
STM32F765VIT6
STM32F767ZGT6
STM32F767IGT6
STM32F767NIH6
STM32F767BIT6
STM32F767VIT6
STM32F031K6U6
STM32F031F6P6
STM32F031C6T6TR
STM32F030K6T6
STM32F030F4P6
STM32F030C8T6
STM32F030CCT6
STM32F030C6T6
STM32F030RCT6
STM32F030R8T6
STM32F042K6T6
STM32F042F6P6
STM32F042C6T6
STM32F051K8U6
STM32F051K6U6
STM32F051C8T6
STM32F051C8T7TR
STM32F051R8T6
STM32F051R8T7
STM32F071VBT6
STM32F071CBT6
STM32F071CBU6
STM32F071RBT6
STM32F072VBT6
STM32F072CBT6
STM32F072C8T6
STM32F072CBU6TR
STM32F072RBT6
STM32F072R8T6
STM32F070CBT6
STM32F070F6P6
STM32F070RBT6
STM32G474VET6
STM32G431CBT6
STM32G071CBT6
STM32G071GBU6
STM32G071RBT6
STM32G070KBT6
STM32G070CBT6
STM32G070RBT6
STM32G031F8P6
STM32G031K6T6
STM32G031J6M6
STM32G031G8U6
STM32G030K6T6
STM32G030K8T6
STM32G030C8T6
STM32G030F6P6TR
STM32H743BIT6
STM32H743IIT6
STM32H743VIT6
STM32H743VIH6
STM32H743ZIT6
STM32H743XIH6
STM32H750IBK6
STM32H750VBT6
STM32H750XBH6
STM32L151C8T6A
STM32L151CBT6A
STM32L151CBU6
STM32L151CCU6
STM32L151RCT6
STM32L151RET6
STM32L151RDT6
STM32L151VDT6
STM32L431CCT6
STM32L431CBT6
STM32L431CCU6
STM32L431RCT6
STM32L431VCT6
STM32L433VCT6
STM32L433RCT3
STM32L433RCT6
STM32L452REY6TR
STM32L471RGT6
STM32L471RET6
STM32L475VET6
STM32L476RGT6
STM32L476VET6
STM32L476RCT6
STM32L476VGT6
STM32L496RGT6
STM32L011D4P6
STM32L010C6T6
STM32L011F4U6TR
STM32L011G4U6
STM32L031F6P6
STM32L031K6T6
STM32L031G6U6
STM32L051K8U6
STM32L051C8T6
STM32L051R8T6
STM32L052R8T6
STM32L053R8T6
STM32L071RBT6
STM32L071CBT6
STM32L072RBT6
STM32L072CBT6
STM32L073RZT6
STM32L073V8T6
STM8L151C6T6
STM8L151C8T6
STM8L151K4T6
STM8L151K6T6
STM8L151G6U6
STM8L151G4U6
STM8L152C6T6
STM8L152R8T6
STM8L152M8T6
STM8L101F3P6TR
STM8L101K3T6
STM8L101F3U6TR
STM8L001J3M3TR
STM8L051F3P6
STM8L052C6T6
STM8L052R8T6
STM8L050J3M3TR
TPS53315RGFR
TPS53511RGTR
TPS53515ARVER
TPS53603ADRGR
TPS53659RSBR
TPS53679RSBR
TPS53631RSBR
TPS53622RSBR
TPS53015DGSR
TPS54140DGQR
TPS54160DGQR
TPS54160ADGQR
TPS54160ADRCR
TPS5410DR
TPS54218RTER
TPS54218ARTER
TPS54227DDAR
TPS54229DDAR
TPS54225PWPR
TPS54228DDAR
TPS54226PWPR
TPS54232DR
TPS54231DR
TPS54239DDAR
TPS54240DGQR
TPS54260DGQR
TPS54260QDGQRQ1
TPS54286PWPR
TPS54202HDDCR
TPS5420DR
TPS54202DDCR
TPS54201DDCR
TPS54319RTER
TPS54318RTER
TPS54312PWPR
TPS54310PWPR
TPS54328DDAR
TPS54329DDAR
TPS54320RHLR
TPS54327DDAR
TPS54329EDDAR
TPS5432DDAR
TPS54326PWPR
TPS54325PWPR
TPS54331DR
TPS54335ADDAR
TPS54331DDAR
TPS54332DDAR
TPS54336ADDAR
TPS54335ADRCR
TPS54340DDAR
TPS54340QDDARQ1
TPS54360BDDAR
TPS54360DDAR
TPS54361DPRR
TPS54360BQDDARQ1
TPS54386PWPR
TPS54394PWPR
TPS5430DDAR
TPS54302DDCR
TPS5430QDDARQ1
TPS54308DDCR
TPS54428DDAR
TPS54427DDAR
TPS54418RTER
TPS54519RTER
TPS54527DDAR
TPS54525PWPR
TPS54521RHLR
TPS54528DDAR
TPS54531DDAR
TPS54540DDAR
TPS54560DDAR
TPS54561DPRR
TPS54560BDDAR
TPS5450DDAR
TPS5450QDDARQ1
TPS54610PWPR
TPS54612PWPR
TPS54620RHLR
TPS54628DDAR
TPS54620RGYR
TPS54623RHLR
TPS54678RTER
TPS54821RHLR
TPS54824RNVR
TPS548D22RVFR
TPS548A20RVER
TPS5401DGQR
TPS5402DR
TPS5403DR
TPS54040DGQR
