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

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.

Features

  • MAX9989/MAX9990.

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Datasheet preview – MAX9990

Datasheet Details

Part number MAX9990
Manufacturer Maxim Integrated
File Size 301.20 KB
Description (MAX9989 / MAX9990) +14dBm to +20dBm LO Buffers
Datasheet download datasheet MAX9990 Datasheet
Additional preview pages of the MAX9990 datasheet.

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Full PDF Text Transcription

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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.
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