LTC5567 Datasheet | Linear Technology

LTC5567 300MHz to 4GHz Active Downconverting Mixer with Wideband IF Features n n n n n n n n n n n Description The LTC®5567 is optimized for RF downconverting mixer applications that require wide IF bandwidth. The part is also a pin-patible upgrade to the LT5557 active mixer, offering higher linearity and 1d B pression, wider bandwidth, and lower output spurious levels. Integrated RF and LO transformers and LO buffer amplifiers allow a very pact solution. The RF input is 50Ω matched from 1.4GHz to 3GHz, and easily matched for higher or lower RF frequencies with simple external matching. The LO input is 50Ω matched from 1GHz to 4GHz, even when the IC is disabled. The LO input is easily matched for higher or lower frequencies, as low as 300MHz, with simple external matching. The low capacitance differential IF output is usable up to 2.5GHz. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. .Data Sheet.co.kr High IIP3: +26.9d Bm at 1950MHz 1.9d B Conversion Gain Low Noise Figure: 11.8d B at 1950MHz 16.5d B NF Under 5d Bm Blocking Low Power: 294m W Wide IF Frequency Range Up to 2.5GHz LO Input 50Ω Matched when Shutdown - 40°C to 105°C Operation (TC) Very Small Solution Size Pin patible with LT5557 16-Lead (4mm × 4mm) QFN package Applications Wireless Infrastructure Receivers DPD Observation Receivers n CATV Infrastructure n n Typical Application DPD Observation Receiver Mixer with 500MHz IF Bandwidth and +13d Bm Input P1d B into 200Ω Load LO 1.65GHz 0d Bm LTC5567 3.9p F 330p F IF+ 249Ω 390n H 100Ω IF AMP RF IF- IADJ 249Ω 390n H 100Ω 200Ω LOAD GV (d B), IIP3 (d Bm), SSB NF (d B) LO 28 26 24 22 20 18 16 14 12 10 8 6 4 GV 40 90 140 190 240 290 340 390 440 490 540 590 IF FREQUENCY (MHz) 5567 TA01b Voltage Conversion Gain, IIP3 and NF vs IF Frequency IIP3 RF = 1.69GHz TO 2.24GHz LO = 1.65GHz ZRF = 50Ω ZIF = 200Ω DIFFERENTIAL...