The typical application circuit of the LT5504

Published:2011/7/6 20:35:00 Author:Christina | Keyword: typical application | From:SeekIC

The typical application circuit of the LT5504 is as shown in the figure. The RF signal adds to the RF input port of LT5504 through the coupling capacitance (C1) and the 1:1 RF input transformer (T). R1 is the shunt resistor. The crystal frequency adds to the LO port through the C5. The Uo port gets the DC output voltage Vo through the voltage divider R2 and R5. JP is the jumper, because the R4>>R3, so when the JP is connection, the EN port connected with the high level to open the circuit, when the JP cuts off, the EN port connected with the low level to close the circuit, the chip is in the low power consumption mode.



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