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MAX9989 - (MAX9989 / MAX9990) +14dBm to +20dBm LO Buffers

Download the MAX9989 datasheet PDF. This datasheet also covers the MAX9990 variant, as both devices belong to the same (max9989 / max9990) +14dbm to +20dbm lo buffers family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX9989 and MAX9990 LO buffers provide the high output (+14dBm to +20dBm) necessary to drive the LO inputs of high-linearity passive mixers, while offering 40dB reverse isolation to prevent LO pulling.

Key Features

  • MAX9989/MAX9990.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX9990_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX9985 Downconversion Mixer
MAX9986 815MHz to 995MHz Downconversion Mixer
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-2486; Rev 0; 7/02 www.DataSheet4U.com +14dBm to +20dBm LO Buffers with ±1dB Variation General Description The MAX9989 and MAX9990 LO buffers provide the high output (+14dBm to +20dBm) necessary to drive the LO inputs of high-linearity passive mixers, while offering 40dB reverse isolation to prevent LO pulling. The MAX9989 is internally matched for the cellular/GSM bands, and the MAX9990 is matched for the DCS/PCS/UMTS bands. The Typical Application Circuit provides a nominal +17dBm output power with ±1dB variation over supply, temperature, and input power. With two optional resistors, the output power can be precision set from +14dBm to +20dBm. The devices offer more than 35dB main driver output to PLL amp output isolation.