400 MHz to 6 GHz Broadband Quadrature Modulator - Analog Devices
Description
Data Sheet
400 MHz to 6 GHz Broadband Quadrature Modulator
ADL5375
FEATURES
Output frequency range: 400 MHz to 6 GHz 1 dB output compression: ≥9.
4 dBm from 450 MHz to 4 GHz Output return loss ≤ 12 dB from 450 MHz to 4.
5 GHz Noise floor: −160 dBm/Hz at 900 MHz Sideband suppression: ≤−50 dBc at 900 MHz Carrier feedthrough: ≤−40 dBm at 900 MHz IQ3dB bandwidth: ≥ 750 MHz Baseband input bias level
ADL5375-05: 500 mV ADL5375-15: 1500 mV Single supply: 4.
75 V to 5.
25 V 24-lead LFCSP_VQ package
APPLICATIONS
Cellular communication systems GSM/EDGE, CDMA2000, W-CDMA, TD-SCDMA
WiMAX/LTE broadband wireless access systems Satellite modems
GENERAL DESCRIPTION
The ADL5375 is a broadband quadrature modulator designed for operation from 400 MHz to 6 GHz.
Its excellent phase accuracy and amplitude balance enable high performance intermediate frequency or direct radio frequency modulation for communication systems.
The ADL5375 features a broad baseband bandwidth, along with an output gain flatness that varies no more than 1 dB from 450 MHz to 3.
5 GHz.
These features, coupled with a broadband output return loss of ≤−12 dB, make the ADL5375 ideally suited for broadband zero IF or low IF-to-RF applications,
FUNCTIONAL BLOCK DIAGRAM
IBBP IBBN
ADL5375
LOIP LOIN
QUADRATURE PHASE
SPLITTER
QBBN QBBP
Figure 1.
RFOUT DSOP
07052-001
broadband digital predistortion transmitters, and multiband radio designs.
The ADL5375 accepts two differential baseband inputs and a single-ended LO.
It generates a single-ended 50 Ω output.
The two versions offer input baseband bias levels of 500 mV (ADL5375-05) and 1500 mV (ADL5375-15).
The ADL5375 is fabricated using an advanced silicon-germanium bipolar process.
It is available in a 24-lead, exposed paddle, leadfree, LFCSP_VQ package.
Performance is specified over a −40°C to +85°C temperature range.
A lead-free evaluation board is also available.
Rev.
D
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