Analog Devices / Maxim Integrated 屡获殊荣的MAX9947 AISG集成收发器
Maxim IC MAX9947是业界首款用于基站和塔台设备的符合AISG规范的全集成收发器。Maxim MAX9947 AISG集成收发器是《电子产品杂志》的,提供20dB典型动态范围并配有带通滤波器,滤波器工作频率为2.176MHz,具有较窄的200kHz带宽。MAX9947发射器集成了带通滤波器,符合AISG频谱发射要求。能够调制高达115.2kbp的OOK信号。输出功率可通过外部电阻在+7dBm-+12dBm之间调节,用于补偿外部电路和电缆的损耗。此外,MAX9947 AISG集成收发器还具有方向输出,便于控制塔台设备的RS-485总线仲裁。该Maxim IC器件设计用于基站和塔台设备。特性
- 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
应用
- Base Stations
- Tower Equipment
Functional Diagram
发布日期: 2011-07-05
| 更新日期: 2023-04-13
