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| Preliminary Data Sheet Product Description The Sirenza SPM-1045 is a passive mixer designed for systems that require high linearity up- and down-conversion. It employs proprietary silicon FETs with proven reliable core-and-wire baluns. It operates efficiently over a wide range of Local Oscillator powers, with input third order intercept remaining approximately 15-20 dB above LO power. This product is packaged in a standard surface mount module for excellent RF performance. SPM-1045 High Linearity Passive FET Mixer Functional Block Diagram Product Features RF IF LO * * * Excellent linearity. Predictable conversion loss vs. LO power. Usable with a LO power from +10dBm to +17dBm. Applications * Product Specifications: Down-converter North American Cellular upconverters and downconverters Test Conditions: FLO = 750MHz FIF = 100MHz Frf = 850MHz Plo = 17dBm Parameters RF Input Frequency Range LO Frequency IF Output Frequency RF Return Loss LO Return Loss IF Return Loss Conversion Loss SSB Noise Figure TOI (Input) Plo=10dBm Plo=14dBm Plo=17dBm P1dB (input) LO-RF isolation LO-IF isolation RF-IF isolation LO Power Plo=17dBm 750MHz 750MHz 850MHz See graphs for performance vs. LO power dBm dBm dBm dBm dB dB dB dBm Frf = 850 MHz Flo = 750 MHz Fif = 100 MHz Frf = 850 MHz Test Conditions Unit MHz MHz MHz dB dB dB Min. 500 700 50 7 12 10 7.5 7.5 27 32 32 20 50 30 30 17 10 10 Typ. Max. 1000 800 500 The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or ommisions. Sirenza Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product for use in life-support devices and/or systems. Copyright 2002 Sirenza Microdevices, Inc. All worldwide rights reserved. 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 1 http://www.sirenza.com EDS102960 Rev A Preliminary Data Sheet SPM-1045 High Linearity Mixer Product Specifications: Up-converter Test Conditions: FLO = 750MHz FIF = 100MHz Frf = 850MHz Plo = 17dBm Parameters RF Output Frequency Range LO Frequency IF Input Frequency RF Return Loss LO Return Loss IF Return Loss Conversion Loss TOI (Input) Plo=10dBm Plo=13dBm Plo=17dBm P1dB (input) LO Power Plo=17dBm See graphs for performance vs. LO power dBm dBm dBm dBm dBm Frf = 850 MHz Flo = 750 MHz Fif = 100 MHz Test Conditions Unit MHz MHz MHz dB dB dB Min. 500 700 50 7 12 10 7.5 25 32 32 20 17 10 Typ. Max. 1000 800 300 Absolute Maximum Ratings Parameters RF Input LO Input IF Input Operating Temperature Storage Temperature Value +15 +20 +15 -40 to +85 -65 to +150 Unit dBm dBm dBm C C Caution: ESD Sensitive Appropriate precaution in handling, packaging and testing devices must be observed. Operation of this device beyond any one of these limits may cause permanent damage. For reliable continuous operation the device voltage and current must not exceed the maximum operating values specified in the table on page one. The SPM-1045 mixer is a MOSFET based high performance mixer designed for high linearity frequency conversion in the US cellular band. This mixer features a wide latitude in LO power requirements. Conversion loss remains virtually constant between 10dBm and 17dBm of LO power. Third Order Intercept is approximately proportional to the LO drive. This means that this mixer can be used to replace a wide variety of mixers requiring a variety of LO powers. The mixer uses baluns on all three ports, so each port presents a DC short. The graphs on the following pages illustrate the performance of the SPM-1045 over a variety of operating conditions. In order to duplicate these performance tests, the following precautions should be observed: -The mixer should be presented with good return losses at all ports by using isolators or attenuators. This is especially true of the LO port, because of the poor return loss of this port. If ripple is seen in a frequency sweep, it is likely due to reflections caused by poor VSWR in a cable leading up to the device. -The presence of harmonics in the LO can cause changes in TOI. -Be aware that signals of many different frequencies exist at the output of the mixer, and any one can potentially cause the spectrum analyzer to generate intermod. -When measuring TOI, make sure the two generators supplying the RF signal are not interacting, causing intermod themselves. 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 2 http://www.sirenza.com EDS102960 Rev A Preliminary Data Sheet SPM-1045 High Linearity Mixer Conversion Loss vs. Frequency, High Side LO, Down-converter 10 Conversion Loss Conversion Loss 9 8 7 6 500 17dBm 14dBm 10dBm 10 9 8 7 6 500 17dBm 14dBm 10dBm Conversion Loss. Vs Frequency, High Side LO Up-Converter 600 700 800 900 1000 600 700 800 900 1000 RF Frequency, MHz RF Frequency, MHz Conversion Loss vs. Frequency, Low Side LO Down-converter 10 Conversion Loss Conversion Loss 9 8 17dBm 14dBm 10dBm 7 6 500 11 10 9 8 Conversion Loss. Vs Frequency, Low Side LO Up-Converter 17dBm 14dBm 10dBm 600 700 800 900 1000 7 500 600 700 800 900 1000 RF Frequency, MHz RF Frequency, MHz Conversion Loss vs. LO Power, Down-converter LO=750MHz, RF=850MHz LO=850MHz, RF=750MHz Conversion Loss, dB 10 Conversion Loss Conversion Loss vs. LO Power, Up-converter LO=750MHz, IF=100MHz 10 9 High side LO Low side LO 7 9 8 7 6 0 5 10 LO Power, dBm High side LO Low side LO 8 6 15 20 0 5 10 LO Power, dBm 15 20 These graphs show mixer conversion loss vs. frequency, with both low-side LO excitation (LO frequency below the RF frequency) and high side excitation (LO frequency above the RF frequency). Operation both as a down-converter and an upconverter is shown, with LO powers of 10, 14, and 17dBm. In all cases, the IF frequency is 100MHz. 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 3 http://www.sirenza.com EDS102960 Rev A Preliminary Data Sheet SPM-1045 High Linearity Mixer TOI vs. Frequency, High Side LO Down-converter 40 Input TOI, dBm Input TOI, dBm 35 TOI vs. Frequency, High Side LO Up-converter 35 17dBm 14dBm 30 10dBm 30 17dBm 14dBm 25 10dBm 25 500 600 700 800 900 1000 20 500 600 700 800 900 1000 RF Frequency, MHz RF Frequency, MHz TOI vs. Frequency, Low Side LO Down-converter 40 Input TOI, dBm 35 TOI, vs. Frequency, Low Side LO Up-converter Input TOI, dBm 35 17dBm 14dBm 30 10dBm 30 17dBm 14dBm 25 10dBm 25 500 600 700 800 900 1000 20 500 600 700 800 900 1000 Rf Frequency, MHz FR Frequency, MHz TOI vs. LO Power, Down-converter LO=750MHz, RF=850MHz (Low side) LO=850MHz, RF=750MHz (High side) 40 35 TOI, dBm 30 Low side LO 25 20 15 0 5 10 LO Power, dBm 15 20 High side LO TOI, dBm 40 35 30 25 20 15 0 TOI vs. LO Power, Up-converter LO=750MHz, RF=850MHz LO=750MHz, RF=650MHz High side LO Low side LO 5 10 15 LO Power, dBm 20 These graphs show mixer Third Order Intercept (TOI) vs. frequency referenced to the input of the mixer (that is, referenced to the RF port in the case off a down-converter, or the IF port in the case of an up-converter), with both low-side LO excitation (LO frequency below the RF frequency) and high side excitation (LO frequency above the RF frequency). Operation both as a down-converter and an up-converter is shown, with LO powers of 10, 14, and 17dBm. In all cases, the IF frequency is 100MHz. The RF power used in measuring third order intercept is +0dBm, except in cases where TOI exceeds 30dBm, in which case input power is increased to make the intermod tones visible above the noise floor. 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 4 http://www.sirenza.com EDS102960 Rev A Preliminary Data Sheet SPM-1045 High Linearity Mixer 850 800 750 LO 700 Freq. MHz 650 600 550 500 600 700 800 900 1000 1100 1200 1300 1400 Conversion Loss, dB (Down-converter) Plo=17dBm 9.5-10 9-9.5 8.5-9 8-8.5 7.5-8 7-7.5 500 600 700 800 900 1000 1100 1200 1300 850 825 (Up-converter) 800 Plo=17dBm 775 750 725 LO 700 Freq. 9.5-10 675 MHz 9-9.5 650 8.5-9 625 8-8.5 600 575 7.5-8 550 1400 Conversion Loss, dB 7-7.5 RF Freq. MHz RF Freq. MHz 850 800 750 Input Intercept, dBm (Down-converter) Plo=17dBm 34-36 32-34 30-32 28-30 26-28 1000 1100 1200 1300 500 600 700 800 900 24-26 22-24 Input Intercept, dBm (Up-converter) 800 Plo=17dBm 850 750 LO 700 Freq. MHz 650 600 14005 50 LO 700 Freq. MHz 650 600 550 500 600 700 800 900 1000 1100 1200 1300 1400 34-36 32-34 30-32 28-30 26-28 RF Freq. MHz RF Freq. MHz TOI vs. Temperature 34 Input TOI, dBm Insertion Loss 33 32 31 30 -50 9 8.5 8 7.5 7 -30 -10 10 30 50 70 90 -50 Insertion Loss vs. Temperature -30 -10 10 30 50 70 90 Temperature Temperature The contour graphs show mixer input TOI and conversion loss over a variety of RF and LO frequencies. These contour graphs can be used to assess the suitability of these mixers over a variety of frequencies of operation. Note that constant IF frequency curves can be overlaid as diagonal lines. Also shown are graphs of TOI and insertion loss vs. temperature. These curves were measured down-converter mode, with 750MHz LO, 850MHz RF and 14dBm LO power. 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 5 http://www.sirenza.com EDS102960 Rev A Preliminary Data Sheet SPM-1045 High Linearity Mixer Isolation LO Power = 17dBm 90 80 70 60 50 40 30 20 10 0 0 500 1000 Frequency, MHz 1500 100 Half IF response IF=100MHz, PLO=17dBm, PRF=10dBm Isolation, dB LO-RF RF-IF LO-IF Isolation, dB 80 60 40 20 0 400 low side high side 600 800 RF Frequency 1000 1200 Harmonics of LO at IF port 17dBm LO power. 0 Harmonic Level, dBm -10 -20 2nd Harmonic -30 -40 -50 0 200 400 600 800 1000 LO Frequency Fundamental, MHz 3rd Harmonic Harmonic Level, dBm 0 -10 -20 Harmonics of LO at RF port 17dBm LO power 2nd Harmonic -30 -40 -50 0 200 400 600 800 1000 LO Frequency 3rd Harmonic RF Port Return Loss LO=775MHz, 17dBm 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 0 500 1000 1500 2000 2500 RF Frequency, MHz 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 0 100 Reflection Coefficient, dB Reflection Coefficient, dB IF Port Return Loss LO=775MHz, 17dBm 200 300 400 500 600 IF Frequency, MHz The isolation graph shows port isolation with a 750MHz LO at 17dB. Half IF response is measured by applying RF signals (10dBm amplitude) 50MHz above or below the LO, and measuring the level of the undesired IF component at 100MHz. 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 6 http://www.sirenza.com EDS102960 Rev A Preliminary Data Sheet SPM-1045 High Linearity Mixer C onversion Loss C ompression C urves R F=850MH z , LO=750MH z , D ow n-conversion 11 11 Conversion Loss Conversion Loss 10 10dB m 9 8 7 0 5 10 RF P ow e r, dBm 15 20 0 5 10 RF P ow e r, dBm 15 20 14dB m 17dB m 10 10dB m 9 8 7 14dB m 17dB m C onversion Loss C ompression C urves R F=850MH z , LO=750MH z , U p-conversion LO Port Return Loss LO=2.0GHz, 17dBm 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 500 Reflection Coefficient, dB 600 700 800 900 1000 LO Frequency, MHz Package Dimensions Part Number Ordering Information Part Number SPM-1045 Reel Size 13" Parts per reel 1000 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 7 http://www.sirenza.com EDS102960 Rev A Preliminary Data Sheet SPM-1045 High Linearity Mixer Demo Test Board Schematic SPM Evaluation Board LO RF J1 J2 Sirenza Microdevices Mixer Eval Bd. J3 IF Recommended connectors: Johnson 142-0701-851 SMA end-launch connectors (or equivalent) 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 8 http://www.sirenza.com EDS102960 Rev A |
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