Maxim Integrated's MAX9985ETX+: High-Performance Mixer

The MAX9985ETX+ from Maxim Integrated is a cutting-edge, high-linearity, downconversion mixer designed to cater to the demanding requirements of wireless infrastructure applications. This advanced component is part of Maxim's extensive range of RF solutions, engineered to deliver exceptional performance and reliability in a compact package.

Key Features

• High Linearity: The MAX9985ETX+ boasts an impressive IIP3 (Input Third-Order Intercept Point) of 24.5dBm, which ensures excellent linearity and low distortion, making it ideal for high-performance systems.
• Low Noise Figure: With a noise figure of just 9.8dB, this mixer maintains signal integrity by minimizing the addition of noise, thus preserving the quality of the received signal.
• Broad Frequency Range: The device operates over a wide frequency range, accommodating IF frequencies from 50MHz to 500MHz and RF frequencies from 700MHz to 1000MHz, providing versatility for various applications.
• Integrated LO Buffer: The inclusion of an on-chip LO (Local Oscillator) buffer amplifier simplifies the design and reduces the number of external components required.
• Single +5V Supply: The MAX9985ETX+ operates on a single +5V supply voltage, which simplifies power supply design and management.

Applications

The versatility and high performance of the MAX9985ETX+ make it suitable for a wide array of applications, particularly in the wireless communication sector. It is ideal for:

• Base station transceivers for various standards, including GSM, CDMA, WCDMA, and LTE
• Wireless repeaters and femtocells
• Point-to-point communication systems
• RFID readers
• Test and measurement equipment

Package and Quality

Housed in a compact 36-pin TQFN package, the MAX9985ETX+ is designed for space-constrained applications. It also supports an extended temperature range, operating reliably from -40°C to +85°C, which ensures consistent performance even in harsh environments. Maxim Integrated is known for its commitment to quality, and this mixer is no exception, meeting stringent industry standards for reliability and longevity.

With its exceptional performance, broad frequency range, and robust design, the MAX9985ETX+ is a quintessential solution for designers looking to enhance the efficiency and performance of their RF systems.