آر اف (فرکانس رادیویی) و بی‌سیم آی سی‌ فرستنده‌گیرنده آر اف

Product Attributes

Introduction

The MAX9947 is an AISG-compliant, fully integrated transceiver. The MAX9947 receiver offers a typical dynamic range of 20dB and integrates a bandpass filter that operates in the 2.176MHz frequency with a narrow 200kHz bandwidth. The MAX9947 transmitter integrates a bandpass filter that is compliant with the AISG spectrum emission profile. It can modulate OOK signals up to 115.2kbps. The output power can be varied with external resistors from +7dBm to +12dBm to compensate for loss in the external circuitry and cabling. The MAX9947 also features a direction output to facilitate the RS-485 bus arbitration in tower-mounted equipment. The MAX9947 is available in a small, 3mm x 3mm 16-pin TQFN and is rated for operation in the -40℃ to +105℃ temperature range.

Features

• 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

Applications

• Base Stations Tower Equipment