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  • MAX2023 High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod
    The MAX2023 low-noise, high-linearity, direct upconversion/ downconversion quadrature modulator/demodulator is designed for single and multicarrier 1500MHz to 2300MHz DCS 1800/PCS 1900 EDGE, cdma2000®, WCDMA, and PHS/PAS base-station applications. Direct conversion architectures are advantageous since they significantly reduce transmitter or receiver cost, part count, and power consumption as compared to traditional IF-based double-conversion systems.
    http://datasheets.maxim-ic.com/en/ds/MAX2023.pdf
  • LT5571 - 620MHz - 1100MHz High Linearity Direct Quadrature Modulator
    The LT5571 is a direct I/Q modulator designed for high performance wireless applications, including wireless infrastructure. The LO path consists of an LO buffer with single-ended input, and precision quadrature generators that produce the LO drive for the mixers. The supply voltage range is 4.5V to 5.25V.
    http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1011,C1724,P34713,D18679
  • MAX2021 High-Dynamic-Range, Direct Up-/Downconversion, 750MHz to 1200MHz Quadrature Modulator/Demodulator
    The MAX2021 low-noise, high-linearity, direct upconversion/downconversion quadrature modulator/demodulator is designed for RFID handheld and portal readers, as well as single and multicarrier 750MHz to 1200MHz GSM/EDGE, cdma2000®, WCDMA, and iDEN® base-station applications. Direct conversion architectures are advantageous since they significantly reduce transmitter or receiver cost, part count, and power consumption as compared to traditional IF-based double conversion systems.
    http://datasheets.maxim-ic.com/en/ds/MAX2021.pdf
  • LT5568 - 700MHz to 1050MHz High Linearity Direct Quadrature Modulator
    The LT5568 is a direct I/Q modulator designed for high performance wireless applications, including wireless infrastructure. It allows direct modulation of an RF signal using differential baseband I and Q signals. It supports PHS, GSM, EDGE, TD-SCDMA, CDMA, CDMA2000, WCDMA, and other systems.
    http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1011,C1724,P14754,D10240
  • MAX2022 High-Dynamic-Range, Direct Upconversion 1500MHz to 2500MHz Quadrature Modulator
    The MAX2022 low-noise, high-linearity, direct upconversion quadrature modulator is designed for single and multicarrier 1800MHz to 2200MHz UMTS/WCDMA, cdma2000®, and DCS/PCS base-station applications. Direct upconversion architectures are advantageous since they significantly reduce transmitter cost, part count, and power consumption as compared to traditional IF-based double upconversion systems.
    http://datasheets.maxim-ic.com/en/ds/MAX2022.pdf

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