Analog and mixed-signal semiconductor supplier Skyworks Solutions, Inc. has released what it claims is industry’s first bulk acoustic wave (BAW) filters for customer premise equipment (CPE) that allow coexistence between wireless local area networks (WLAN) in the home and enterprise, and WiMAX networks. As both networks operate at very closely spaced frequency bands, these unique BAW filters reject the interfering frequencies while allowing the desired signals to pass for the selected network.

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While SKY33107 is a high pass - WiFi reject/WiMAX pass- filter, the SKY33108 is a lowpass -WiFi pass/WiMAX reject- BAW version. Both 3 x 3 mm devices have very low in-band insertion loss of 2 dB, as well as low input and output return loss. They also exhibit excellent rejection – in the 2.4 gigahertz (GHz) WLAN band for the SKY33107, and 2.495-2.690 GHz WiMAX band for the SKY33108. Attenuation in the reject band for SKY33107 is 42 dB (min) and 45 dB (typ) for SKY33108.

Both filters can operate over a temperature range of -20 to 85 °C and are available in a lead (Pb)-free, RoHS-compliant package. Engineering samples are available now, with full launch scheduled for the fourth quarter.

www.skyworksinc.com