New devices added to UltraCMOS DSA series

Peregrine Semiconductor has released the PE43501 and PE43601 - the latest in the UltraCMOS Digital Step Attenuator (DSA) 50ohm series.

Building on their predecessors, along with direct and latched parallel interface logic, the HARP-enhanced devices also offer flexible serial programmability with attenuation options covering a 7.75 dB (PE43501)and 15.75 dB (PE43601) attenuation range in 0.25 dB steps.

The PE43501 and PE43601 DSAs offer good linearity, attenuation accuracy and low insertion loss.

As with all UltraCMOS silicon-on-sapphire RFICs, there is no gate lag nor phase drift providing fast settling time, making them ideal for next-generation wireless protocols such as LTE, Wimax and TD-SCDMA.

These devices provide good linearity and broadband accuracy for cellular base stations, repeaters and femtocells.

The 50ohm DSAs have an operating frequency range of near DC up to 6GHz with low-frequency performance, input IP3 > +60 dBm at 3GHz, good noise immunity and ESD tolerance of 500V HBM.

The device operates with equivalent performance at 3.3V and 5V supply 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 that facilitates 2.75V control, and a high-a state at power-up (PUP).

The devices are available in the compact, RoHS-compliant QFN 32-lead package (5 x 5 x 0.85mm).

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