Analog Devices / Maxim Integrated 獲獎的MAX9947 AISG整合式收發器
Maxim IC MAX9947是業內首個與AISG相容,基地台及塔台設備專用的全整合式收發器。Maxim MAX9947 AISG整合式收發器,獲評為《電子產品雜誌》的,其標準動態範圍為20dB,整合了具有200KHz窄带宽、在2.176MHz頻率下工作的带通滤波器。MAX9947發送器整合了與AISG光譜放射规定相容的帶通濾波器。它可調變開關鍵控訊號高達115.2kbps。輸出功率能隨外置電阻器而改變,範圍由+7dBm至+12dBm,以補償外部電路及導線的耗損。MAX9947 AISG整合式收發器也設有方向輸出,促進塔頂設備內的RS-485匯流排調解。此Maxim IC設備專為基地台及塔台設備設計。特點
- Receiver Wide Input Dynamic Range
- -15dBm to +5dBm in 50Ω
- Variable Transmitter Output Level from +7dBm to +12dBm
- AISG-Compliant Output Emission Profile
- AutoDirection Output
- No Need of Microcontrollers to Handle Bus Arbitration in Tower-Mounted Equipment
- Supports All AISG Data Rates
- 9.6kbps
- 38.4kbps
- 115.2kbps
- Bandpass Filter Compliant with AISG Protocol Centered Around 2.176MHz
- 3.0V to 5.5V Voltage Supply
- Independent Logic Supply
- Small, 3mm x 3mm 16-Pin TQFN Package
應用
- Base Stations
- Tower Equipment
Functional Diagram
發佈日期: 2011-07-05
| 更新日期: 2023-04-13
