LT5578IUH#PBF

LT5578 is a 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 1.95GHz operation, this device provides conversion gain of -0.7dB, high OIP3 of 24.3dBm and a low noise floor of -158dBm/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, this device delivers conversion gain at significantly lower LO input levels and is less sensitive to LO power level variations. The lower LO drive level requirements, combined with the excellent LO leakage performance, translate into lower LO signal contamination of the output signal. It is used in applications such as GSM 900PCS/1800PCS and W-CDMA infrastructure, LTE and WiMAX base stations, wireless repeaters, public safety radios.

• Noise figure is 8.6dB typ at (fRF = 740MHz, fIF = 140MHz)
• LO to RF leakage is -43dB typ at (fRF = 740MHz, fIF = 140MHz)
• Single-ended RF and LO ports
• Low LO drive level is -1dBm
• Single supply operation is 3.3V
• Supply current is 152mA typ at (VCC = 3.3V, PLO = -1dBm)
• Operating temperature range from -40°C to 85°C
• Package style is 24-lead plastic QFN

附註

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