specifications and information are sub ject to change without notice wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com february 2004 MH205 high linearity cellular - band mmic mixer product information product features +33 dbm iip3 rf 800 ? 915 mhz if 70 ? 120 mhz iso & epc compliant low - side lo configuration +17 dbm drive level low cost soic - 8 package no external bias required applications rfid: uhf readers industrial portable handheld product des cription the MH205 is a passive gaas mesfet mixer that provides high dynamic range performance in a low cost soic - 8 package. its robustness and ease of use make it an ideal candidate for the core of any rfid reader application. it is compliant with epc a nd iso standards. wj?s MH205 uses patented techniques to realize +33 dbm input ip3 at an lo drive level of +17 dbm when used in a simple application circuit as an upconverting or downconverting low - side lo configuration. this single monolithic integrated circuit does not require any external baluns or bias elements. typical applications include frequency up/down conversion, modulation and demodulation for receivers and transmitters used in various current and next generation rfid technologies such as epc, iso, etsi, and ansi. their small size makes them ideal for pcmcia applications. functional diagram 1 2 3 4 8 7 6 5 function pin no. lo 2 if & rf * 7 gnd 1, 3, 4, 5, 6, 8 * external components (inductors & capacitors) are required to diplex the signal speci fications 1 parameters units min typ max comments rf frequency range mhz 800 915 lo frequency range mhz 700 845 if frequency range mhz 70 120 ssb conversion loss db 8.7 9.5 noise figure db 9.2 see note 2 input ip3 dbm +28 +33 see note 3 input p1db dbm +18 lo ? rf isolation db 30 37 lo ? if isolation db 47 51 rf ? if isolation db 15 return loss: rf port db 12 see note 4 return loss: if port db 14 see note 4 return loss: lo port db 8 lo drive level dbm +17 te st conditions unless otherwise noted: 1. performance is with the use of an application specific circuit (shown on page 4) with a low - side lo at +17 dbm in a downconverting application at 25 c. 2. assumes lo injection noise is filtered at the thermal noi se floor, - 174 dbm/hz, at the rf, if, and image frequencies. 3. iip3 is measured with d f = 1 mhz with rf in = 0 dbm / tone. 4. the return loss is measured after the diplexer which splits the rf and if signals from the mixer. details of the diplexing circ uit is shown on page 4. absolute maximum rating ordering information parameter rating part no. description operating case temperature - 40 to +85 c MH205 cellular - band mmic mixer storage temperature - 65 to +100 c MH205 - pcb fully - assembled mixer application board maximum input lo power 6 +21 dbm 5. operation of this device above any of these parameters may cause permanent damage. 6. total sum of the lo and rf port power should not exceed +23 dbm.
specifications and information are sub ject to change without notice wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com february 2004 MH205 high linearity cellular - band mmic mixer product information typical performance plots: low - side downcon version input ip3 vs rf frequency low-side downconversion, lo = +17 dbm, 25 c 24 26 28 30 32 34 800 820 840 860 880 900 920 rf frequency (mhz) input ip3 (dbm) if = 70 mhz if = 120 mhz if = 140 mhz input ip3 vs rf frequency low-side downconversion, if = 120 mhz, 25c 24 26 28 30 32 34 800 820 840 860 880 900 920 rf frequency (mhz) input ip3 (dbm) lo = +15 dbm lo = +16 dbm lo = +17 dbm lo = +18 dbm lo = +19 dbm input ip3 vs rf frequency low-side downconversion, if = 120 mhz, lo=+17dbm 24 26 28 30 32 34 800 820 840 860 880 900 920 rf frequency (mhz) input ip3 (dbm) -40c +25c +85c conversion loss vs rf frequency low-side downconversion, lo = +17 dbm, 25c 5 6 7 8 9 10 800 820 840 860 880 900 920 rf frequency (mhz) conversion loss (db) if = 70 mhz if = 120 mhz if = 140 mhz conversion loss vs rf frequency low-side downconversion, if = 120 mhz, 25c 5 6 7 8 9 10 800 820 840 860 880 900 920 rf frequency (mhz) conversion loss (db) lo = +15 dbm lo = +16 dbm lo = +17 dbm lo = +18 dbm lo = +19 dbm conversion loss vs rf frequency low-side downconversion, if = 120 mhz, lo=+17dbm 5 6 7 8 9 10 800 820 840 860 880 900 920 rf frequency (mhz) conversion loss (db) -40c +25c +85c lo return loss vs lo frequency lo = +17 dbm, 25c -20 -15 -10 -5 0 700 725 750 775 800 825 850 lo frequency (mhz) lo return loss (db) rf return loss vs rf frequency lo = +17 dbm, 25c -25 -20 -15 -10 -5 0 800 820 840 860 880 900 920 rf frequency (mhz) rf return loss (db) if = 70 mhz if = 120 mhz if = 140 mhz if return loss vs rf frequency lo = +17 dbm, 25c -25 -20 -15 -10 -5 0 70 80 90 100 110 120 if frequency (mhz) if return loss (db) rf = 800 mhz rf = 900 mhz l-r isolation lo = +17 dbm, 25c 10 20 30 40 50 700 725 750 775 800 825 850 lo frequency (mhz) l-r isolation (db) l-i isolation lo = +17 dbm, 25c 10 20 30 40 50 60 700 725 750 775 800 825 850 lo frequency (mhz) l-i isolation (db) r-i isolation downconverting application, lo = +17 dbm, 25 c 0 5 10 15 20 800 820 840 860 880 900 920 rf frequency (mhz) r-i isolation (db)
specifications and information are sub ject to change without notice wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com february 2004 MH205 high linearity cellular - band mmic mixer product information typical performance plots: low - side upconversion input ip3 vs rf frequency low-side uponversion, lo = +17 dbm, 25 c 22 24 26 28 30 32 800 820 840 860 880 900 920 rf frequency (mhz) input ip3 (dbm) if = 70 mhz if = 120 mhz if = 140 mhz input ip3 vs rf frequency low-side upconversion, if = 120 mhz, 25c 22 24 26 28 30 32 800 820 840 860 880 900 920 rf frequency (mhz) input ip3 (dbm) lo = +15 dbm lo = +16 dbm lo = +17 dbm lo = +18 dbm lo = +19 dbm input ip3 vs rf frequency low-side upconversion, if = 120 mhz, lo=+17dbm 22 24 26 28 30 32 800 820 840 860 880 900 920 rf frequency (mhz) input ip3 (dbm) -40c +25c +85c conversion loss vs rf frequency low-side upconversion, lo = +17 dbm, 25c 5 6 7 8 9 10 800 820 840 860 880 900 920 rf frequency (mhz) conversion loss (db) if = 70 mhz if = 120 mhz if = 140 mhz conversion loss vs rf frequency low-side upconversion, if = 120 mhz, 25c 5 6 7 8 9 10 800 820 840 860 880 900 920 rf frequency (mhz) conversion loss (db) lo = +15 dbm lo = +16 dbm lo = +17 dbm lo = +18 dbm lo = +19 dbm conversion loss vs rf frequency low-side upconversion, if = 120 mhz, lo=+17dbm 5 6 7 8 9 10 800 820 840 860 880 900 920 rf frequency (mhz) conversion loss (db) -40c +25c +85c lo return loss vs lo frequency lo = +17 dbm, 25c -20 -15 -10 -5 0 700 725 750 775 800 825 850 lo frequency (mhz) lo return loss (db) rf return loss vs rf frequency lo = +17 dbm, 25c -25 -20 -15 -10 -5 0 800 820 840 860 880 900 920 rf frequency (mhz) rf return loss (db) if = 70 mhz if = 120 mhz if = 140 mhz if return loss vs rf frequency lo = +17 dbm, 25c -25 -20 -15 -10 -5 0 70 80 90 100 110 120 if frequency (mhz) if return loss (db) rf = 800 mhz rf = 900 mhz l-r isolation lo = +17 dbm, 25c 10 20 30 40 50 700 725 750 775 800 825 850 lo frequency (mhz) l-r isolation (db) l-i isolation lo = +17 dbm, 25c 10 20 30 40 50 60 700 725 750 775 800 825 850 lo frequency (mhz) l-i isolation (db) r-i isolation upconverting application, lo = +17 dbm, 25c 10 20 30 40 50 70 80 90 100 110 120 if frequency (mhz) r-i isolation (db)
specifications and information are sub ject to change without notice wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com february 2004 MH205 high linearity cellular - band mmic mixer product information application circuit (MH205 - pcb) circuit board material: .014? fr - 4, 4 layers, .062? total thi ckness outline drawing mounting configuration / land pattern product marking the component will be marked with an ?MH205? designator followed by a four - or five - digit alpha - numeric lot co de on the top surface of the package. tape and reel specifications for this part is located on the website in the ?application notes? section. esd / msl information esd classification: class 1 b value: passes / 500 v to <1000 v test: human body model ( hbm) standard: jedec standard jesd22 - a114 esd classification: class i ii value: passes / 500 v to <1000 v test: charged device model (cdm) standard: jedec standard jesd22 - c101 msl rating: level 3 at +235 c convection reflow standard: jedec standard j - std - 020 b functional pin layout pin function 1 ground 2 lo port 3 ground 4 ground 5 ground 6 ground 7 rf / if port* 8 ground * external components (inductors & capacitors) are required to diplex the signal rf c1 8.2 pf if c2 3.9 pf l2 12 nh l1 23 nh lo all components are of size 0402. all other pins on mixer are grounded . pin 2 pin 7
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