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Surface mount limiter diodes for receiver protection applications

April 18, 2012 | Jean-Pierre Joosting | 222904466
Skyworks has introduced three surface mount limiter diodes for receiver protection applications. The surface mountable, low capacitance silicon PIN limiter diodes are designed as shunt connected PIN diodes for high power limiter functions ranging from 10 MHz to over 6 GHz.

These general market limiter diodes deliver low loss, very low series inductance, low capacitance and can handle high power with low thermal resistance (40 °C/W). Target markets include infrastructure, military and consumer.

The CLA4603-085LF offers maximum resistance at 10 mA of 2 Ω and maximum capacitance at 6 V of 0.4 pF. The combination of low junction capacitance, low parasitic inductance, low thermal resistance, and nominal 1.5 μm I-region width, makes the diode useful in large signal limiter applications.The threshold level is +9 dBm, nominal.

The CLA4606-085LF has a maximum resistance at 10 mA of 2 Ω and maximum capacitance at 6 V of 0.38 pF. The combination of low junction capacitance, low parasitic inductance, low thermal resistance, and nominal 2.5 μm I-region width, makes the diode useful in large signal limiter applications. The threshold level is +10 dBm, nominal at 1 GHz.

The CLA4607-085LF surface mount limiter diode features a maximum resistance at 10 mA of 2 Ω and maximum capacitance at 38 V of 0.35 pF. The combination of low junction capacitance, low parasitic inductance, low thermal resistance, and nominal 7 μm I-region width, makes the diode useful in large signal limiter applications. The threshold level is +20 dBm, nominal.

All three diode versions come in a low profile, ultra-miniature QFN (3-pin, 2 x 2 mm) package (MSL1, 260 °C per JEDEC J-STD-020).

www.skyworksinc.com










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