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India-semiconductor
Date: 05-03-13

6th order, programmable bandwidth, fully calibrated dual LPF by Hittite

Hittite Microwave 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%. 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 0.9V to 3V 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 number of RF frequencies, standards, and signal bandwidth, to cover various standards in different geographies.

The HMC1023LP5E is housed in a 5 x 5 mm plastic leadless surface mount package and provide temperature stability from -40 °C to +85 °C.

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