chm1481 - qfg ref. : dschm1481 - qfg1356 - 22 dec 11 1 / 10 specifications subject to change without notice united monolithic semiconductors s.a.s. route dpartementale 128 - bp46 - 91401 orsay cedex france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 6 - 9ghz direct quadrature modulator gaas monolithic microwave ic in smd leadless package description the chm1481 - qfg is a 6 - 9 ghz direct quadrature modulator packaged integrates a double - balanced mixer (lo suppression and image rejection) and a lo buffer. it can be used for both lsb and usb configurations. the circuit is mainly dedicated to point to point and point to multi - point systems and also well suited for a wide range of microwave applications. the circuit is m 2 anufa ctured with a phemt process, 0. 5m gate length . it is supplied in rohs compliant smd package. main features main electrical characteristics tamb. = + 25c symbol parameter min typ max unit f rf output rf frequency range 6 9 ghz f lo lo frequency range 6 9 ghz f if base band bandwidth dc 250 mhz p rf output power - 2 6 db m ums m1481 yyww ? ? ums a3667a yywwg ums a3667a yywwg ums a3688a yywwg ums a3667a yywwg ums a3667a yywwg ums a3688a yywwg ums a3667a yywwg ums a3667a yywwg ums a3688a yywwg ums a3667a yywwg ums a3667a yywwg ums a3688a yywwg ums a3667a yywwg ums a3667a yywwg ums a3688a yywwg ums a3667a yywwg ums a3667a yywwg ums a3688a yywwg - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 - 25 - 20 6 7 8 9 rf output power & lo leakage (dbm) rf frequency (ghz) rf output : usb rf output : lsb lo leakag without canacelation lo leakage with cancelation ums a3667a yywwg ums a3667a yywwg ums a3688a yywwg ums a3667a yywwg ums a3667a yywwg ums a3688a yywwg
ch m1481 - qfg 6 - 9ghz direct quadrature modulator ref. : dschm1481 - qfg1356 - 22 dec 11 2 / 10 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 electrical characteristics tamb.= +25c, vd1 = vd2 = vd3 = +4v symbol parameter min typ max unit f rf rf frequency range 6 9 ghz f lo lo frequency range 6 9 ghz f bb base band input 1db bandwidth dc 250 mhz p rf output power (1) - 26 db m p lo lo input power 0 dbm lo _leak lo leakage (1) (2) - 30 db m lo_sup lo cancelation (1) (3) - 65 db m im_rej image rejection (1) 2 0 dbc rl lo lo input return loss (@p lo =0dbm) - 8 db rl rf rf input return loss - 10 db oip3 output ip3 12 dbm imd2 2 nd order intermodulation ratio 38 dbc n noise floor - 15 6 dbm/hz amp_ b al i/q amplitude balance - 1 + 1 db ph_err quadrature phase error - 5 + 5 v i _dc baseband i dc voltage differential mode ( 4 ) - 0. 2 +0. 2 v v q _dc baseband q dc voltage differential mode ( 4 ) - 0.2 +0.2 v v bbi baseband i ac voltage differential mode (5) - 0.8 0.8 v v bbq baseband q ac voltage differential mode (5) - 0.8 0.8 v v d x dc supply voltage 4 v vg mixer gate bias voltage - 0.7 v i d q dc quiescent current 1 2 0 ma (1) given for f bb = 10 mhz and v bb i = v bbq = 2 00mv pp (over 50?) lo = 0 dbm (2) lo leakage without cancelation (i.e. no dc tuning: v i _dc = v q_dc = 0v) (3) lo leakage cancelation (i.e. with dc tuning on v i _dc and v q_dc ) (4) use to cancel lo leakage. differential mode means i and ib voltage are opposite. tuning adjustment are need for each frequency, temperature and lo power. ( 5 ) peak to pea k voltage. these values are representative of onboard measurements as defined on the drawing in paragraph "evaluation mother board".
6 - 9ghz direct quadrature modulator chm1481 - qfg ref. : dschm1481 - qfg1356 - 22 dec 11 3 / 10 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 absolute maximum ratings (1) tamb.= + 25c symbol parameter values unit v d x drain bias voltage 4. 5 v id q dc quiescent current 1 5 0 ma v g gate bias voltage - 2 to +0.4 v tj junction temperature 175 c ta operating temperature range - 40 to +85 c tstg storage temperature range - 55 to +150 c (1) operation of this device above anyone of these parameters may cause permanent damage. typical bias conditions tamb.= + 25c symbol pad n o parameter values unit v d 1 9 drain 1 bias v oltage 4 v v d 2 10 drain 2 bias voltage 4 v vd3 11 drain 3 bias voltage 4 v vg 27 mixer gate bias voltage - 0.7 v
ch m1481 - qfg 6 - 9ghz direct quadrature modulator ref. : dschm1481 - qfg1356 - 22 dec 11 4 / 10 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 device thermal performances all the figures given in this section are obtained assuming that the qfn device is cooled down only by conduction through the package thermal pad (no convection mode considered). the temperature is monitored at the package back - side interface (tcase) as shown below. the system maximum temperature must be adjusted i n order to guarantee that tcase remains below than the maximum value specified in the next table. so, the system pcb must be designed to comply with this requirement. a derating must be applied on the dissipated power if the tcase temperature cannot be ma intained below than the maximum temperature specified (see the curve pdiss. max) in order to guarantee the nominal device life time (mttf). recommended max. junction temperature (tj max) : 134 c junction temperature absolute maximum rating : 175 c max. continuous dissipated power (pdiss. max.) : 0.5 w => pdiss. max. derating above tcase (1) = 85 c : 10 mw / c junction-case thermal resistance (rth j-c) (2) : <103 c / w minimum tcase operating temperature (3) : -40 c maximum tcase operating temperature (3) : 85 c minimum storage temperature : -55 c maximum storage temperature : 150 c (1) derating at junctio n temperature co nstant = tj max. (2) rth j-c is calculated fo r a wo rst case co nsidering the ho t t e s t junc t io n o f the m m ic and all the devices biased. (3) tcase=p ackage back side temperature measured under the die-attach-pad (see the drawing belo w). 6.4 device thermal specification : CHM1481-QFG 0 0.1 0.2 0.3 0.4 0.5 0.6 - 50 - 25 0 25 50 75 100 125 150 pdiss. max. @tj 6 - 9ghz direct quadrature modulator chm1481 - qfg ref. : dschm1481 - qfg1356 - 22 dec 11 5 / 10 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 typical on board measurements tamb.= +25c, v d1 = vd2 = vd3 = +4v, idq = 100 ma usb versus rf frequency f bb = 10 mhz / v bbi = v bbq = 200mvpp p lo = 0dbm lsb rejection versus rf frequency f bb = 10 mhz / v bbi = v bbq = 200mvpp p lo = 0dbm lo leakage versus rf frequency f bb = 10 mhz / v bbi = v bbq = 200mvpp p lo = 0dbm lo leakage versus lo input power f bb = 10 mhz / v bbi = v bbq = 200mvpp p lo = 0dbm usb versus lo input power f bb = 10 mhz / v bbi = v bbq = 200mvpp f lo : [6 to 9 / 1] ghz dc supply current versus lo input power f bb = 10 mhz / v bbi = v bbq = 200mvpp f lo : [6 to 9 / 1] ghz - 30 - 29 - 28 - 27 - 26 - 25 - 24 - 23 - 22 - 21 - 20 6 7 8 9 usb (dbm) rf frequency (ghz) rf output : usb 0 5 10 15 20 25 30 35 40 6 7 8 9 lsb rejection (dbc) rf frequency (ghz) lsb rejection - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 - 25 - 20 - 15 - 10 - 5 0 6 7 8 9 lo leakage (dbm) rf frequency (ghz) lo leakage without cancalation lo leakage with cancelation - 50 - 45 - 40 - 35 - 30 - 25 - 20 - 15 - 10 - 10 - 9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1 0 1 2 3 4 lo leakage (dbm) lo input power (dbm) 6 ghz 7 ghz 8 ghz 9 ghz - 30 - 29 - 28 - 27 - 26 - 25 - 24 - 10 - 9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1 0 1 2 3 4 usb power (dbm) lo input power (dbm) 6 ghz 7 ghz 8 ghz 9 ghz 120 125 130 135 140 145 150 155 160 165 170 - 10 - 9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1 0 1 2 3 4 supply current (ma) lo input power (dbm) 6 ghz 7 ghz 8 ghz 9 ghz
ch m1481 - qfg 6 - 9ghz direct quadrature modulator ref. : dschm1481 - qfg1356 - 22 dec 11 6 / 10 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 temperature board measurements v d1 = vd2 = vd3 = +4v, idq = 100 ma usb versus rf frequency f bb = 10 mhz / v bbi = v bbq = 200mvpp p lo = 0dbm lsb rejection versus rf frequency f bb = 10 mhz / v bbi = v bbq = 200mvpp p lo = 0dbm lo leakage versus rf frequency f bb = 10 mhz / v bbi = v bbq = 200mvpp p lo = 0dbm / v i_dc = v q_dc = 0v lo cancelation versus rf frequency f bb = 10 mhz / v bbi = v bbq = 200mvpp p lo = 0dbm / v i_dc & v q_dc tuned - 30 - 29 - 28 - 27 - 26 - 25 - 24 - 23 - 22 - 21 - 20 6 7 8 9 rf signal output power (dbm) rf frequency (ghz) - 40 c +25 c +85 c 0 5 10 15 20 25 30 35 40 6 7 8 9 image rejection (dbc) rf frequency (ghz) - 40 c +25 c +85 c - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 - 25 - 20 - 15 - 10 - 5 0 6 7 8 9 lo leakage (dbm) rf frequency (ghz) - 40 c +25 c +85 c - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 - 25 - 20 - 15 - 10 - 5 0 6 7 8 9 lo leakage (dbm) rf frequency (ghz) - 40 c +25 c +85 c
6 - 9ghz direct quadrature modulator chm1481 - qfg ref. : dschm1481 - qfg1356 - 22 dec 11 7 / 10 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 package outline (1) matt tin, lead free (green) 1 - nc 12 - nc 23 - gnd (2) units : mm 2 - nc 13 - nc 24 - nc from the standard : jedec mo - 220 3 - nc 14 - nc 25 - i (vhhd) 4 - nc 15 - nc 26 - i b 33 - gnd 5 - nc 16 - gnd (2) 27 - v g 6 - gnd (2) 17 - nc 28 - nc 7 - lo 18 - nc 29 - q b 8 - gnd (2) 19 - nc 30 - q 9 - vd1 20 - nc 31 - gnd (2) 10 - vd2 21 - gnd (2) 32 - nc 11 - vd3 22 - rf (1) the package outline drawing included to this data - sheet is given for indication. refer to the application note an0017 ( http://www.ums - gaas.com ) for exact package dimensions. (2) it is strongly recommended to ground all pins marked gnd through the pcb board. m1481
ch m1481 - qfg 6 - 9ghz direct quadrature modulator ref. : dschm1481 - qfg1356 - 22 dec 11 8 / 10 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 evaluation mother board m1481
6 - 9ghz direct quadrature modulator chm1481 - qfg ref. : dschm1481 - qfg1356 - 22 dec 11 9 / 10 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 notes esd protections are implemented on lo port , rf port , baseband ports, drain and gate ports . the dc connections do not include any decoupling capacitor in package, therefore it is mandatory to provide a good external dc decoupling (10nf) on the pc board, as close as possible to the package.
ch m1481 - qfg 6 - 9ghz direct quadrature modulator ref. : dschm1481 - qfg1356 - 22 dec 11 10 / 10 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 recommended package footprint refer to the application note an0017 available at http://www.ums - gaas.com for package foot print recommendations. smd mounting procedure for the mounting process standard techniques involving solder paste and a suit able reflow process can be used. for further details, see application note an0017. recommended environmental management ums products are compliant with the regulation in particular with the directives rohs n2011/65 and reach n1907/2006. more environme ntal data are available in the application note an0019 also available at http://www.ums - gaas.com . recommended esd management refer to the application note an0020 available at http://www.ums - gaas.com for esd sensitivity and handling recommendations for the ums package products. ordering information qfn 5x5 rohs compliant package: chm1481 - qfg /xy stick: xy = 20 tape & reel: xy = 21 information furnished is believed to be accurate and reliable. however united monolithic semiconductors s.a.s. assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of united monolithic semiconductors s.a.s. . specifications mentioned in thi s publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. united monolithic semiconductors s.a.s. products are not authorised for use as critical components in life support devices or systems without express written approval from united monolithic semiconductors s.a.s.
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