lt5520 Linear Technology Corporation, lt5520 Datasheet
lt5520
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lt5520 Summary of contents
Page 1
... The IF port can be easily matched to a broad range of frequencies for use in many different applications. The LT5520 mixer delivers 15.9dBm typical input 3rd order intercept point at 1.9GHz with IF input signal levels of –10dBm. The input 1dB compression point is typically 4dBm. The IC requires only a single 5V supply. ...
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... O –10dBm/Tone 1MHz –10dBm, Single-Tone Internally Biased Single Side Band , EN = High , (Note 3), unless otherwise noted CONDITIONS ENABLE ORDER PART TOP VIEW NUMBER LT5520EUF 12 GND + – GND PART MARKING UF PACKAGE 5520 = 125 C, ...
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... LOW SIDE HIGH SIDE IIP3 18 LOW SIDE LO 16 HIGH SIDE 1300 1500 1700 1900 2100 2300 RF OUTPUT FREQUENCY (MHz) LT5520 MIN TYP 3 4 (Test Circuit Shown in Figure 2) Shutdown Current vs Supply Voltage – 5.25 4 ...
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... LT5520 W U TYPICAL PERFOR A CE CHARACTERISTICS High , input = 140MHz at –10dBm, LO input = 1.76GHz at –5dBm, RF output measured at 1900MHz unless otherwise noted. For 2-tone inputs: 2nd IF Input = 141MHz at –10dBm. (Test Circuit Shown in Figure 2.) Conversion Gain and SSB Noise Figure vs LO Input Power ...
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... puts. The LT5520 works well with a single-ended source driving the LO impedance ground. No external matching components are required. An internal resistor is connected across these pins; therefore voltage should not be applied across and have appropri- the inputs ...
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... APPLICATIO S I FOR ATIO The LT5520 consists of a double-balanced mixer, a high- performance LO buffer, and bias/enable circuits. The RF and LO ports may be driven differentially; however, they are intended to be used in single-ended mode by connect- ing one input of each pair to ground. The IF input ports must be DC-isolated from the source and driven differen- tially ...
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... RF pins. The LT5520 is designed and – pins are connected together through the Angle –30.9 –37.1 – 42.4 – 48.9 –54.7 –60.4 –65.1 –68.5 5520f 7 ...
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... Figure 5. RF Output Circuit Operation at Different Input Frequencies On the evaluation board shown in Figure 10, the input of the LT5520 can be easily matched for different frequencies by changing the input capacitors, C1 and C2. Table 4 lists some actual values used at selected frequencies. Table 4. Input Capacitor Values vs Frequency ...
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... U Low Frequency Matching of the RF Output Port Without any external components on the RF output, the internal transformer of the LT5520 provides a good 50 impedance match for RF frequencies above approximately 1600MHz. At frequencies lower than this, the return loss drops below 10dB and degrades the conversion gain. The addition of a single 3 ...
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... LT5520 U U APPLICATIO S I FOR ATIO (10a) Top Layer Silkscreen Figure 10. Evaluation Board Layout (10b) Top Layer Metal 5520f ...
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... DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WGGC) 2. ALL DIMENSIONS ARE IN MILLIMETERS 3. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 4. EXPOSED PAD SHALL BE SOLDER PLATED LT5520 BOTTOM VIEW—EXPOSED PAD 0.75 0. 0.115 TYP ...
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... LT5520 RELATED PARTS PART NUMBER DESCRIPTION Infrastructure LT5511 High Signal Level Upconverting Mixer LT5512 DC-3GHz High Signal Level Downconverting Mixer LT5515 1.5GHz to 2.5GHz Direct Conversion Quadrature Demodulator 20dBm IIP3,Integrated LO Quadrature Generator LT5516 0.8GHz to 1.5GHz Direct Conversion Quadrature Demodulator 21.5dBm IIP3,Integrated LO Quadrature Generator LT5522 600MHz to 2 ...