LT5522 Datasheet | Linear Technology

LT5522 400MHz to 2.7GHz High Signal Level Downconverting Mixer .. Features - - - - - - - - - - - DESCRIPTIO U APPLICATIO S - - - - Internal On-Chip RF Input Transformer 50Ω Single-Ended RF and LO Ports High Input IP3: +25d Bm at 900MHz +21.5d Bm at 1900MHz Low Power Consumption: 280m W Typical Integrated LO Buffer: Low LO Drive Level High LO-RF and LO-IF Isolation Wide RF Frequency Range: 0.4GHz to 2.7GHz- Very Few External ponents Enable Function 4.5V to 5.25V Supply Voltage Range 16-Lead (4mm × 4mm) QFN Package The LT®5522 active downconverting mixer is optimized for high linearity downconverter applications including cable and wireless infrastructure. The IC includes a high speed differential LO buffer amplifier driving a double-balanced mixer. The LO buffer is internally matched for wideband, single-ended operation with no external ponents. The RF input port incorporates an integrated RF transformer and is internally matched over the 1.2GHz to 2.3GHz frequency range with no external ponents. The RF input match can be shifted down to 400MHz, or up to 2.7GHz, with a single shunt capacitor or inductor, respectively. The high level of integration minimizes the total solution cost, board space and system-level variation. The LT5522 delivers high performance and small size without excessive power consumption. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. - Operation over a wider frequency range is possible with reduced performance. Consult factory for information and assistance. Cellular, PCS and UMTS Band Infrastructure CATV Downlink Infrastructure 2.4GHz ISM High Linearity Downmixer Applications TYPICAL APPLICATIO LT5522 LO+ LO INPUT - 5d Bm LO- GC, SSB NF (d B), IIP3 (d Bm) IF+ 1850MHz TO 1910MHz LNA RF+ 2.7p F 100p F 150n H 140MHz (TYP) VGA RF- BIAS/ CONTROL EN VCC1 VCC2 5V 0.01µF 3.3µF 150n H IF- LTC1748 ADC 5522 F01 Figure 1. High Signal Level...