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New flexible DSAs expand Peregrine's lineup

Posted: 08 Apr 2009 ?? ?Print Version ?Bookmark and Share

Keywords:digital attenuator step? attenuation flexible? Peregrine UltraCMOS?

PE43502, PE43503 and PE43602 DSAs

Peregrine Semiconductor Corp. has released three new UltraCMOS Digital Step Attenuators (DSAs), expanding its 50 DSA line. Building on its predecessors, along with flexible serial and parallel interface logic, these new HaRP-enhanced devices also offer flexible attenuation options by covering a 31.5dB attenuation range in 0.5dB or 1.0dB steps.

The PE43502, PE43503 and PE43602 DSAs offer linearity, attenuation accuracy and low Insertion Loss (IL). As with all UltraCMOS silicon-on-sapphire RF ICs, there is no gate lag nor phase drift and the devices have exceptionally fast settling time, making them ideal for wireless broadband access applications such as TDE, WiMAX and TD-SCDMA (China's 3G standard for mobile telecommunication), and for next-generation communication systems such as cellular base stations, repeaters, femtocells and power amplifier distortion canceling loops.

These new 50 DSAs have an operating frequency range of near DC up to 6GHz with low-frequency performance, Input IP3 of +58dBm, noise immunity and ESD tolerance of 500V HBM. They work with two typical supply voltages of 3.3V or 5V with very low power consumption, allowing the use of a single device in both the RF and IF radio sections to save board space.

Peregrine's new DSAs provide many additional features including on-board CMOS logic, which facilitates 2.75V control, and a high-state at power-up. The devices are available in the ultra-compact, RoHS-compliant QFN 24-lead package (4mm x 4mm x 0.85mm). All products are sampling now and are priced at PE43502: $2.14 (100K units); PE43503: $2.14 (100K units); and PE43602: $2.52 (100K units).

- Henri Arnold
EE Times Europe

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