www.
DataSheet4U.
com FEATURES ■ ■ ■ ■ LT5572 1.
5GHz to 2.
5GHz High Linearity Direct Quadrature Modulator DESCRIPTIO The LT5572 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, W-CDMA and other systems.
It may also be configured as an image reject up-converting mixer by applying 90° phase-shifted signals to the I and Q inputs.
The high impedance I/Q baseband inputs consist of voltage-to-current converters that in turn drive double-balanced mixers.
The outputs of these mixers are summed an...

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