Product category:
Communications ICs (Wireless)
News Release from: Analog Devices | Subject: ADL5387
Edited by the Electronicstalk Editorial
Team on 22 May 2007
Demodulator covers a wider band
High-performance wide-input-range demodulator enables high capacity digital modems for microwave radio transmission and next generation broadband access systems.
Available now from Analog Devices, the ADL5387 is a high-performance wide-input-range demodulator that enables high capacity digital modems for microwave radio transmission and next generation broadband access systems, such as 802.16 WiMAX and WiBro applications Unlike competing and prior generations of demodulators, the ADL5387 provides one-of-a-kind wideband and broadband operation with increased performance and flexibility across an input frequency that spans 50MHz to 2GHz
This article was originally published on Electronicstalk on 2 Jul 2008 at 8.00am (UK)
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High capacity modems are implemented with higher order modulation, such as OFDM and 128QAM, across wider signal bandwidths.
The ADL5387 addresses these requirements by integrating a highly accurate divide-by-two quadrature phase splitter with outstanding amplitude and phase balance, and high-linearity Gilbert cell mixers.
The mixer cores provide unequalled linearity - with +30dBm third order intercept (IP3) at 900MHz - and excellent demodulation accuracy with 0.1dB amplitude and 0.5-degree phase accuracy.
This highly balanced design provides better than 60dBc LO rejection and low second order distortion, both critical specs for higher order demodulation applications.
Additionally, the ADL5387 features a 240MHz demodulation bandwidth, enabling demodulation of the widest of input signal bandwidths.
The baseband output stage delivers a conversion gain of approximately 5dB and high output drive, minimising the need for auxiliary output amplifiers.
With these specifications and core attributes, the ADL5387 enables the highest capacity microwave modems, simplifies design, and allows operation across the widest range of input frequencies and signal bandwidths.
The ADL5387 is ideally suited for use in the highest capacity microwave radio modems, and the IF signal paths of next generation broadband wireless access systems, such as 802.16 WiMAX and WiBro applications.
Fabricated on Analog Devices' XF3 silicon-on-insulator (SOI) SiGe complementary bipolar process, the ADL5387 is sampling today, and will be available in full production quantities in July 2007.
The ADL5387 is packaged in a 24-lead small footprint LFCSP (lead-frame chip-scale package) with a price of US $4.98 per unit in 1000-piece quantities.
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