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Hittite Microwave Corp., a of complete MMIC based solutions for communication & military markets, has introduced the HMC1023LP5E, a new addition to its IF/Baseband Processing integrated circuit product line.
A 6th order, programmable bandwidth, fully calibrated dual Low Pass Filter (LPF), the HMC1023LP5E features programmable 0 or 10 dB gain and supports arbitrary user programmable, bandwidths from 5 MHz to 72 MHz. When calibrated, the programmed bandwidth is accurate to within ±2.5 percent. A built-in filter bypass option enables wider bandwidth while maintaining programmed gain and common mode control settings.
The HMC1023LP5E features an integrated ADC driver, programmable input impedance, and adjustable output common mode voltage from 0.9 to 3 V with a 2 Vpp signal. The output common mode can be also be adjusted lower than 0.9V common mode to effect a seamless interface while achieving maximum performance. Programmable bias settings enable performance/power dissipation trade-offs optimized for each application. The 6th order Butterworth transfer function delivers superior stop band rejection while maintaining both a flat passband and minimal group delay variation.
The HMC1023LP5E is footprint and register compatible with the previously released HMC900LP5E programmable bandwidth LPF and supports wider signal bandwidths demanded by the new 72 MHz channel spacing standard set by the microwave radio market.
Hittite’s IF/Baseband Processing product line is now comprised of two programmable bandwidth Low Pass Filters, the HMC1023LP5E and the HMC900LP5E, and the HMC960LP4E dual digital variable gain amplifier. These devices enable the design of a universal hardware platform that is field programmable and supports numerous RF frequencies, standards, and signal bandwidths. Together with Hittite’s Wideband PLLs with Integrated VCOs and Analog-to- Digital Converters (ADCs), the IF/Baseband product line enables Hittite’s customers to address all regions, standards and bands of operation with one hardware platform; thereby streamlining their supply chain and eliminating the need to support frequency/standard/bandwidth specific hardware.
Both products are housed in a 5 x 5 mm plastic leadless surface mount package and provide excellent temperature stability from -40° to +85°C. Released data sheets may be found at www.hittite.com. Samples and evaluation PC boards are available from stock and can be ordered via the company’s e-commerce site or via direct purchase order.
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