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 IF RF • • • LO Excellent linearity. Predictable conversion loss vs. LO power. Usable with a LO power from +10dBm to +17dBm. Applications • North American Cellular upconverters and downconverters Product Specifications: Down-converter Test Conditions: FLO = 750MHz FIF = 100MHz Frf = 850MHz Plo = 17dBm Unit Min. RF Input Frequency Range Parameters Test Conditions MHz 500 Typ. LO Frequency MHz 700 800 IF Output Frequency MHz 50 500 RF Return Loss Frf = 850 MHz dB 7 LO Return Loss Flo = 750 MHz dB 12 IF Return Loss Fif = 100 MHz dB Conversion Loss Frf = 850 MHz SSB Noise Figure TOI (Input) 10 7.5 10 7.5 10 Plo=10dBm dBm 27 Plo=14dBm dBm 32 Plo=17dBm dBm 32 P1dB (input) Plo=17dBm dBm 20 LO-RF isolation 750MHz dB 50 LO-IF isolation 750MHz dB 30 RF-IF isolation 850MHz dB 30 LO Power See graphs for performance vs. LO power dBm Max. 1000 17 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 Unit Min. RF Output Frequency Range Parameters Test Conditions MHz 500 Typ. LO Frequency MHz 700 800 IF Input Frequency MHz 50 300 RF Return Loss Frf = 850 MHz dB 7 LO Return Loss Flo = 750 MHz dB 12 IF Return Loss Fif = 100 MHz dB 10 Conversion Loss TOI (Input) 7.5 Plo=10dBm dBm 25 Plo=13dBm dBm 32 Plo=17dBm dBm 32 P1dB (input) Plo=17dBm dBm 20 LO Power See graphs for performance vs. LO power dBm Absolute Maximum Ratings Parameters 10 17 Caution: ESD Sensitive Value Unit RF Input +15 dBm LO Input +20 dBm IF Input Max. 1000 +15 dBm Operating Temperature -40 to +85 ºC Storage Temperature -65 to +150 ºC 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 Conversion Loss. Vs Frequency, High Side LO Up-Converter 10 9 17dBm 8 14dBm 10dBm 7 6 500 600 700 800 900 Conversion Loss Conversion Loss 10 9 17dBm 8 14dBm 10dBm 7 6 500 1000 600 Conversion Loss vs. Frequency, Low Side LO Down-converter 900 1000 11 9 17dBm 8 14dBm 10dBm 7 6 500 600 700 800 900 Conversion Loss Conversion Loss 800 Conversion Loss. Vs Frequency, Low Side LO Up-Converter 10 10 17dBm 9 14dBm 10dBm 8 7 500 1000 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 9 High side LO 8 Low side LO 7 Conversion Loss vs. LO Power, Up-converter LO=750MHz, IF=100MHz 10 Conversion Loss, dB 10 Conversion Loss 700 RF Frequency, MHz RF Frequency, MHz 9 High side LO 8 Low side LO 7 6 6 0 5 10 15 20 0 5 10 15 20 LO Power, dBm LO Power, dBm 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 35 35 17dBm 14dBm 25 500 10dBm 600 700 800 900 Input TOI, dBm Input TOI, dBm 40 30 TOI vs. Frequency, High Side LO Up-converter 30 17dBm 14dBm 10dBm 25 20 500 1000 600 RF Frequency, MHz TOI vs. Frequency, Low Side LO Down-converter 35 17dBm 14dBm 10dBm 30 600 700 800 900 Input TOI, dBm Input TOI, dBm 900 1000 35 30 17dBm 14dBm 25 10dBm 20 500 1000 600 700 800 900 1000 FR Frequency, MHz Rf Frequency, MHz TOI vs. LO Power, Down-converter LO=750MHz, RF=850MHz (Low side) LO=850MHz, RF=750MHz (High side) TOI vs. LO Power, Up-converter LO=750MHz, RF=850MHz LO=750MHz, RF=650MHz 40 40 35 35 30 Low side LO 25 High side LO 20 TOI, dBm TOI, dBm 800 TOI, vs. Frequency, Low Side LO Up-converter 40 25 500 700 RF Frequency, MHz High side LO 30 Low side LO 25 20 15 15 0 5 10 LO Power, dBm 15 20 0 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 Conversion Loss, dB (Down-converter) Plo=17dBm Conversion Loss, dB 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 7.5-8 550 750 LO 700 Freq. MHz 650 9.5-10 9-9.5 8-8.5 550 7.5-8 1400 7-7.5 1400 1300 1200 1100 900 1000 800 700 RF Freq. MHz 600 7-7.5 500 1300 1200 1100 900 1000 800 700 600 500 8.5-9 600 RF Freq. MHz 850 800 Input Intercept, dBm (Down-converter) Plo=17dBm Input Intercept, dBm (Up-converter) 800 Plo=17dBm 850 750 750 LO 700 Freq. MHz 650 LO 700 Freq. MHz 650 34-36 32-34 30-32 28-30 600 TOI vs. Temperature 14005 1300 1200 1100 1000 900 28-30 26-28 Insertion Loss vs. Temperature 34 9 33 8.5 Insertion Loss Input TOI, dBm 30-32 50 RF Freq. MHz RF Freq. MHz 32 31 30 -50 800 700 600 1400 1300 1200 1100 900 1000 800 700 600 500 22-24 500 24-26 32-34 600 26-28 550 34-36 8 7.5 7 -30 -10 10 30 50 70 90 -50 -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 Half IF response IF=100MHz, PLO=17dBm, PRF=10dBm 90 80 70 60 50 40 30 20 10 0 100 LO-RF RF-IF LO-IF Isolation, dB Isolation, dB Isolation LO Power = 17dBm 80 60 low side 40 high side 20 0 400 0 500 1000 Frequency, MHz 600 1500 Harmonics of LO at IF port 17dBm LO power. 1200 0 -10 -20 2nd Harmonic -30 3rd Harmonic -40 Harmonic Level, dBm Harmonic Level, dBm 1000 Harmonics of LO at RF port 17dBm LO power 0 -50 -10 -20 2nd Harmonic -30 3rd Harmonic -40 -50 0 200 400 600 800 1000 0 200 LO Frequency Fundamental, MHz Reflection Coefficient, dB 500 1000 1500 600 800 1000 IF Port Return Loss LO=775MHz, 17dBm 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 0 400 LO Frequency RF Port Return Loss LO=775MHz, 17dBm Reflection Coefficient, dB 800 RF Frequency 2000 2500 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 0 RF Frequency, MHz 100 200 300 400 500 600 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 C onversion Loss C ompression C urves R F=850MH z , LO=750MH z , U p-conversion 11 10 10dB m 9 14dB m 17dB m 8 7 Conversion Loss Conversion Loss 11 10 10dB m 14dB m 9 17dB m 8 7 0 5 10 15 20 0 5 RF P ow e r, dBm 10 15 20 RF P ow e r, dBm Reflection Coefficient, dB LO Port Return Loss LO=2.0GHz, 17dBm 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 500 600 700 800 900 1000 LO Frequency, MHz Package Dimensions 522 Almanor Ave., Sunnyvale, CA 94085 Part Number Ordering Information Part Number Reel Size Parts per reel SPM-1045 13” 1000 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