Space and cost savings with CMOS 4 x 2 matrix HF switches

Equally powerful as GaAs switches, but lower in cost and more efficient
Space and cost savings with CMOS 4 x 2 matrix HF switches (PresseBox) (Dornach, ) The three CMOS 4 x 2 matrix HF switches from NEC Electronics, which immediately complement Gleichmann Electronics' product portfolio, are comparable in performance to GaAs switches, although lower in cost and - especially in multi-switch circuits - more space-saving.

All three devices can be used in a frequency range from 250 to 2150 MHz. The isolation parameters range from 35 dBm (0.25 to 0.95 GHz) for the devices PD5715GR and PD5716GR to 42 dBm (0.25 to 2.15 GHz) for the device PD5720K. Insertion loss - depending on device type - is specified at 6.7 dBm or 6.9 dBm.

An additional 4-bit decoder was integrated in the PD5720K HF switch. By means of this decoder, four SPDT switches can be saved by 8 x 2 multi-switch circuits. The possibility to construct multi-switches on only two levels provides the user with a significant space advantage compared to a traditional design with pin diodes.

The CMOS 4 x 2 matrix HF switches PD5716GR and PD5720K, designed for an operating ambient temperature range from -40 to +850C, require 5 V supply voltage; the PD5715GR requires 3.3 V. The PD5715GR and PD5716GR devices are each offered in a Pb-free 16-pin Thermal Enhanced Thin Shrink Small Outline Package (HTSSOP); the PD5720K HF switch in a 20-pin Quad Flat No-Lead (QFN) package.

Samples and product literature for the PD5715GR, PD5716GR and PD5720K CMOS 4 x 2 matrix HF switches are available, upon request, from Gleichmann Electronics.

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