LT5579IUH#PBF

LT5579IUH#PBF is a 1.5GHz to 3.8GHz high linearity upconverting mixer. The single-ended LO input and RF output ports simplify board layout and reduce system cost. The mixer needs only -1dBm of LO power and the balanced design results in low LO signal leakage to the RF output. At  2.6GHz operation, the LT5579 provides a high conversion gain of 1.3dB, high OIP3 of +26dBm, and a low noise floor of -157.5dBm/Hz at a -5dBm RF output signal level. It offers a high-performance alternative to passive mixers. Unlike passive mixers, which have conversion loss and require high LO drive levels, the LT5579 delivers conversion gain at significantly lower LO input levels and is less sensitive to LO power level variations. Applications include GSM/EDGE, W-CDMA, UMTS, LTE and TD-SCDMA base stations, 2.6GHz and 3.5GHz WiMAX base stations, 2.4GHz ISM band transmitters, high performance transmitters.

• Low LO leakage, single-ended RF and LO, single 3.3V supply
• Output 3rd order intercept is 27.3dBm typical at (fIF = 240MHz, fRF = 2140MHz)
• Output noise floor (POUT = -5dBm) is -158.1dBm/Hz typical at (fIF = 240MHz, fRF = 2140MHz)
• Conversion gain is 1.8dB typical at (fIF = 240MHz, fRF = 1750MHz)
• Supply current is 226mA typical at (VCC = 3.3V, PLO = -1dBm, TA = 25°C)
• IF input return loss is 15dB typical at (ZO = 50 ohm, external match)
• LO input power from -5 to 2dBm at (VCC = 3.3V, TA = 25°C, PIF = –5dBm)
• Output 1dB compression is 13.3dBm typical at (fIF = 240MHz, fRF = 1750MHz)
• Operating temperature range from -40°C to +85°C
• 24-lead plastic QFN package