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AD8345

Analog Devices
Part Number AD8345
Manufacturer Analog Devices
Description 140 MHz to 1000 MHz Quadrature Modulator
Published Mar 23, 2005
Detailed Description FEATURES 140 MHz to 1000 MHz operating frequency +2.5 dBm P1dB @ 800 MHz −155 dBm/Hz noise floor 0.5 degree RMS phase er...
Datasheet PDF File AD8345 PDF File

AD8345
AD8345


Overview
FEATURES 140 MHz to 1000 MHz operating frequency +2.
5 dBm P1dB @ 800 MHz −155 dBm/Hz noise floor 0.
5 degree RMS phase error (IS95) 0.
2 dB amplitude balance Single 2.
7 V to 5.
5 V supply Pin-compatible with AD8346 and AD8349 16-lead TSSOP_EP package APPLICATIONS Cellular communication systems W-CDMA/CDMA/GSM/PCS/ISM transceivers Fixed broadband access systems LMDS/MMDS Wireless LAN Wireless local loop Digital TV/CATV modulators Single sideband upconverter PRODUCT DESCRIPTION The AD8345 is a silicon RFIC quadrature modulator, designed for use from 140 MHz to 1000 MHz.
Its excellent phase accuracy and amplitude balance enable the high performance direct modulation of an IF carrier.
The AD8345 accurately splits the external LO signal into two quadrature components through the polyphase phase splitter network.
The I and Q LO components are mixed with the baseband I and Q differential input signals.
Finally, the outputs of the two mixers are combined in the output stage to provide a single-...


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