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[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 1 - ak1 22 2 900mhz low power mixer 1. overview the ak 1222 is a low power mixer. rf and l o frequency range coverage from 100 to 900mhz and if coverage is from 20 to 100mhz. the rf i nput provides single - ended 50 ? interface. l o ports a re 50 ? matched and complementary input s should be decoupled to the ground. if output ports are differential open drain outputs. the linearity and p ower consumption performances can optimize with the re sistance connected to the bias p in. 2. features ? operating frequency : 1 00 to 900 mhz ? linearity vs power selectable architecture power consumption : 5.3 ma , iip3 : + 11 dbm , gain : - 2 db , nf : 12 db power consumption : 2.9 ma , iip3 : + 2 dbm , gain : - 3 .5 db , nf : 11 .5 db ? lo input level : 0 dbm5db ? operating supply voltage : 4.75 to 5.25 v ? package : 16 pin uqfn ( 0.5mm pitch, 3mm x 3mm x 0.60mm ) ? operating temperature range : - 40 to 85 ? c
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 2 - table of contents 1. overview ________________________________ _______________________________ 1 2. features ________________________________ _______________________________ 1 3. block dagram ________________________________ ___________________________ 3 4. system diagram ________________________________ _________________________ 4 5. pin functional descri ption ________________________________ ________________ 5 6. absolute maximum ratings ________________________________ _______________ 7 7. recommended operating range ________________________________ ___________ 7 8. electrical characteristics ________________________________ __________________ 8 9. typical performance ________________________________ _____________________ 9 10. typical evaluation board schematic ________________________________ _______ 16 11. ic interface schematic ________________________________ ___________________ 24 12. outer dimensions ________________________________ ______________________ 25 13. marking ________________________________ _______________________________ 26
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 3 - 3. block diagram fig. 1 block diagram ifout n ifout p rfin mixer lo buffer iref bias loinn loinp vdd vss
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 4 - 4. system diagram fig. 2 system diagram output load resistor rload rfin loinn loinp ifoutp ifoutn AK1222 vss balun vdd (power feeding for open-drain output) vss vdd vss lo buffer iref mixer vss bias current adjustment resistor rf input lo input if output vss vdd vss vss
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 5 - 5. pin functional description table 1 pin function no. name i/o pin functions remarks 1 rfin ai rf input connecting a n inductor between this pin and ground. 2 vss g ground p i n 3 loinn ai lo input negative 4 loinp ai lo input positive 5 nc - non connect 6 nc - non connect 7 nc - non connect 8 nc - non connect 9 bias aio resistance pin for current adjustment connecting a resistor between this pin and ground. 10 vdd p power supply 11 ifoutn ao if output negative this pin is open drain output. it needs power feeding via a n inductor . 12 ifoutp ao if output positive this pin is open drain output. it needs power feeding via a n inductor . 13 nc - non connect 14 nc - non connect 15 nc - non connect 16 nc - non connect note) it is recommended to connect nc pins to ground, although it will not make any impact on the elect rical characteristics if the pin is open. ai: analog input pin ao: analog output pin aio: analog i/o pin p: power supply pin g : ground pin
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 6 - fig. 3 package pin layout 1 2 3 4 5 6 7 8 9 10 15 14 13 12 11 16 top view rfin vss loinn loinp nc nc bias vdd ifoutn ifoutp nc nc nc nc nc nc
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 7 - 6. absolute maximum ratings table 2 absolute maximum ratings parameter symbol min. max. unit remarks supply voltage vdd - 0.3 5.5 v rf input power rfpow 7 dbm lo input power lopow 12 dbm storage temperature tstg - 55 125 ? 7. recommended operating range table 3 recommended operating range parameter symbol min. typ. max. unit remarks operating temperature ta - 40 85 ?
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 8 - 8. electrical characteristics 1 unless otherwise noted if output =50mhz , lo input level = - 5dbm to +5dbm , output load resisto r ( rload ) =2.2k ? , vdd= 4.75 to 5.25v , ta= - 40 to 85 c parameter min . typ . max . unit remarks rf input frequency 100 900 mhz lo input frequency 100 900 mhz if output frequency 20 100 mhz lo input power - 5 0 +5 dbm current adjustment resisto r(bias) 22 56 k ? ? the total current of vdd pin , ifoutp pin and ifoutn pin. bias =56k ? rfin=600mhz, output load resistor = 22k ? conversion gain - 4 - 2 0 db ssb noise figure (nf) 12 14 db design guarantee value ip1db - 3 0 dbm iip3 +8 +11 dbm rfin=600mhz, outp ut load resisto r = 56 k ? conversion gain - 5.5 - 3 .5 - 1.5 db ssb noise figure (nf) 11 .5 13.5 db design guarantee value ip1db - 9 - 6 dbm iip3 - 1 +2 dbm note 1) in the shipment test, nc pins and the exposed pad on the center of the back of the package is connected to ground.
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 9 - 9. typical performance unless otherwise noted, rf input =600mhz , lo input =550mhz , i f output =50mhz , output load resisto r ( rload ) = 2.2k ? 1. current adjustment resist o r vs . iip3 , nf , ip1db , gain , idd fig. 4 current adjustment resist o r vs . iip3 , nf , i p1db , gain , idd note 1) a resistor with 5% tolerance are used . 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 20 30 40 50 60 bias [k?] iip3 [dbm] 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 20 30 40 50 60 bias [k?] nf [db] -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 20 30 40 50 60 bias [k?] ip1db [dbm] -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 20 30 40 50 60 bias [k?] gain [db] 0.0 1.0 2.0 3.0 4.0 5.0 6.0 20 30 40 50 60 bias [k?] idd [ma]
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 10 - 2. over temperature vs . iip3 , nf , ip1db , gain , idd fig . 5 over temperature vs . iip3 , nf , i p1db , gain , idd 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 -40 -20 0 20 40 60 80 100 temperature [deg] iip3 [dbm] 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 -40 -20 0 20 40 60 80 100 temperature [deg] nf [db] -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 -40 -20 0 20 40 60 80 100 temperature [deg] ip1db [dbm] -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 -40 -20 0 20 40 60 80 100 tempurature [deg] gain [db] 0.0 1.0 2.0 3.0 4.0 5.0 6.0 -40 -20 0 20 40 60 80 100 temperature [deg] idd [ma] bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k?
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 11 - 3. supply voltage vs . iip3 , nf , i p1db , gain , idd fig. 6 supply voltage vs . iip3 , nf , i p1db , gain , idd 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25 vdd [v] iip3 [dbm] 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25 vdd [v] nf [db] -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25 vdd [v] ip1db [dbm] -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25 vdd [v] gain [db] 0.0 1.0 2.0 3.0 4.0 5.0 6.0 4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25 vdd [v] idd [ma] bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k?
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 12 - 4. rf input frequency vs . iip3 , nf , ip1db , gain fig. 7 rf input frequency vs . iip3 , nf , ip1db , gain note 1) ak122 2 support s 100mhz to 900mhz rf input. 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 100 200 300 400 500 600 700 800 900 1000 rf frequency [mhz] iip3 [dbm] 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 100 200 300 400 500 600 700 800 900 1000 rf frequency [mhz] nf [db] -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 100 200 300 400 500 600 700 800 900 1000 rf frequency [mhz] ip1db [dbm] -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 100 200 300 400 500 600 700 800 900 1000 rf frequency [mhz] gain [db] bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k?
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 13 - 5. if output frequency vs . iip3 , nf , ip1db , gain fig. 8 if output frequen cy vs . iip3 , nf , ip1db , gain note 1) ak122 2 support s 20mhz to 100mhz if output. 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 20 40 60 80 100 120 if frequency [mhz] iip3 [dbm] 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 20 40 60 80 100 120 if frequency [mhz] nf [db] -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 20 40 60 80 100 120 if frequency [mhz] ip1db [dbm] -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 20 40 60 80 100 120 if frequecy [mhz] gain [db] bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k?
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 14 - 6. lo input power vs . iip3 , nf , ip1db , gain fig. 9 lo input power vs . iip3 , nf , ip1db , gain note 1) AK1222 support s - 5dbm to 5dbm lo input power. lo input level [dbm] lo input level [dbm] lo input level [dbm] lo inp ut level [dbm] 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 -20 -15 -10 -5 0 5 10 lo input level [dbm] iip3 [dbm] 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 -20 -15 -10 -5 0 5 10 lo input level [dbm] nf [db] -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 -20 -15 -10 -5 0 5 10 lo input level [dbm] ip1db [dbm] -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 -20 -15 -10 -5 0 5 10 lo input level [dbm] gain [db] bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k?
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 15 - 7. output load re s ist o r ( rload ) vs . iip3 , nf , ip1db , gain fig. 10 output load re s ist o r 8 rf input =600mhz , - 20dbm , l o input =600mhz , 0d bm , ta= 25 c vdd =5v parameter bias typ. unit rf C lo l e akage 22k ? - 50 dbc 56k ? - 50 dbc rf C if l e akage 22k ? - 80 dbc 56k ? - 80 dbc lo C rf l e akage 22k ? - 50 dbc 56k ? - 50 dbc lo C if l e akage 22k ? - 80 dbc 56k ? - 80 dbc 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 rload [k?] iip3 [dbm] 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 rload [k?] nf [db] -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 rload [k?] ip1db [dbm] -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 rload [k?] gain [db] bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k? bias=22k? bias=56k?
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 16 - 10. typical evaluation board sc hematic 1. typical evaluation board schematic fig. 11 typical evaluation board schematic note 1) the open drain out put needs power feeding via a inductor. ( ifoutp pin and ifoutn ) note 2) it is necessary to adjust impedance match ing as to its setting frequency. ( rf input and if output) rf input impedance matching output load resistor rload rfin loinn loinp ifoutp ifoutn AK1222 vss l1 balun vdd (powefeeding for open-drain output) vss vdd vss lo buffer iref mixer vss bias current adjustment resistor 22 to 56k rf input lo input if output 100pf 10nf 100pf 100pf if output impedance matching 100pf 10nf vss vdd vss c1 50 vss
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 17 - 2. example of impedance matching ? rf in fig. 12 rfin 150mhz e xample of impedance matching frequency[mhz] c1[pf] l1[nh] 150 1 5 82 450 5.1 22 600 3.6 15 900 3.9 6.8 rfin l1 rf input c1 ak122 2 frequency[mhz] c1[pf] l1[nh] 150 1 5 82 start 50mhz, stop 1ghz marker 1 150mhz : 3 6 . 1 ? 4 . 2 ? 1 1 -1 0 1
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 18 - fig. 13 rfin 450mhz e xample of impedance matching fig. 14 rfin 600mhz e xample of impedance matching frequency[mhz] c1[pf] l1[nh] 450 5.1 22 start 50mhz, stop 1ghz marker 1 450 mhz : 51.1 ? 3 . 3 ? marker 2 394 mhz : 25 . 1 ? - 7 . 6 ? marker 3 524 mhz : 8 5.6 ? - 30.1 ? 1 3 2 1 2 3 -1 0 1 frequency[mhz] c1[pf] l1[nh] 600 3.6 15 start 50mhz, stop 1ghz marker 1 600 mhz : 46 .2 ? - 3 .3 ? 1 1 -1 0 1
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 19 - fig. 15 rfin 900mhz e xample of impedance matching frequency[mhz] c1[pf] l1[nh] 900 3.9 6.8 start 50mhz, stop 1ghz marker 1 900 mhz : 61 . 8 ? 1 1 . 0 ? 1 -1 0 1
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 20 - ? if out fig. 16 if o ut 30mhz e xample of impedance matching frequency [mhz] r1 [k ? ] c2 [pf] l2 [nh] l3 [nh] 30 2.2 3.9 1800 1800 50 2.2 2.0 1000 1000 60 2.2 0.5 1000 1000 80 2.2 n/a 680 680 100 2.2 n/a 470 470 1800nh : murata lqw21hn1r8j00l 1000nh : murata lqw21hn1r0j00l 680nh : murata lqw21hnr 68 j00l 470nh : murata lqw21hnr47j00l balun:mini - circuits adt4 - 6t+ ifoutp ifoutn ak122 2 output load resistor rload balun (powefeeding for open - drain output) vss if output 100pf 10nf vss c2 r1 l2 l3 vdd frequency [mhz] r1 [k ? ] c2 [pf] l2 [nh] l3 [nh] 30 2.2 3.9 1800 1800 start 10mhz, stop 140mhz marker 1 30 mhz : 55.5 ? - 19.7 ? marker 2 28 mhz : 55.7 ? - 37.3 ? marker 3 36 mhz : 72.8 ? 38.4 ? -1 0 1 1 2 3
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 21 - fig. 17 if out 50mhz e xample of impedance matching fig. 18 if out 60mhz e xample of impedance matching frequency [mhz] r1 [k ? ] c2 [pf] l2 [nh] l3 [nh] 50 2.2 2 1000 1000 start 10mhz, stop 140mhz marker 1 50 mhz : 43.2 ? - 7.5 ? marker 2 45 mhz : 37.3 ? - 28.6 ? marker 3 59 mhz : 81.6 ? 34.6 ? -1 0 1 1 2 3 frequency [mhz] r1 [k ? ] c2 [pf] l2 [nh] l3 [nh] 6 0 2.2 0.5 1000 1000 start 10mhz, stop 140mhz marker 1 60 mhz : 52 .7 ? - 19 .0 ? marker 2 54 mhz : 43 .4 ? - 33 . 1 ? marker 3 7 0 mhz : 100 . 7 ? - 8.4 ? -1 0 1 1 2 3
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 22 - fig. 19 if out 8 0mhz e xample o f impedanc e matching fig. 20 if out 10 0mhz e xample of impedance matching frequency [mhz] r1 [k ? ] c2 [pf] l2 [nh] l3 [nh] 80 2.2 n/a 680 680 start 10mhz, stop 140mhz marker 1 80 mhz : 3 8.5 ? - 1 4 . 5 ? marker 2 75 mhz : 31 . 2 ? - 21.3 ? marker 3 9 5 mhz : 7 8. 7 ? - 33 . 8 ? -1 0 1 1 2 3 frequency [mhz] r1 [k ? ] c2 [pf] l2 [nh] l3 [nh] 100 2.2 n/a 470 470 start 10mhz, stop 140mhz marker 1 100 mhz : 38 . 9 ? 1 . 6 ? marker 2 9 0 mhz : 26 . 9 ? - 12 . 2 ? -1 0 1 1 2
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 23 - ? loinp/loinn fig. 21 loinp/loinn e xample of impedance matching loinn loinp 50ohm vss lo input 100pf 100pf AK1222
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 24 - 11. ic interface schematic no. name i/o function 1 rfin i rf input pin 3 loinn i l o input pins 4 loinp i 9 bias i/o analog i/o pin 11 ifoutn o if output pins 12 ifoutp o 27kohm 300ohm ifoutp ifoutn
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 25 - 12. outer dimensions fig. 22 outer dimensions note 1. 1 pin marking is only a reference for the 1 pin location on the top of packa ge. 3.00.10 3.00.10 0 .58 0. 05 1 pin marking (note 1) 1 4 5 8 9 12 13 16
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 26 - 13. marking (a) style : qfn (b) number of pins : 16 (c) 1 pin marking: : (d) product number : 1222 (e) date code : ywwl (4 digits) y : lower 1 digit of calendar year (year 20 11 1 , 201 2 2 ...) ww : week lot identification, given to each product lot which is made in a week ? lot id is given in alphabetical order (a, b, c). fig. 23 marking ywwl (e) (c) 1222 (d)
[ak 1222 ] ms 1314 - e - 01 2013 / 05 - 27 - important notice 0. asahi kasei microdevices corporation (akm) reserves the right to make changes to the information contained in this document without notice. when you consider any use or application of akm product stipulated in this document ( product ) , please make inquiries the sales office of akm or authorized distributor s as to current status of the products. 1. all information included in this document are pro vided only to illustrate the operation and application examples of akm products . akm neither makes warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property rights or any other rights of akm or any third party with respect to the information in this document. you are fully responsible for use of such information contained in this document in your product design or applications . akm assumes no liability for any losses incurred by you or third parties arising from the use of such information in your product design or applications. 2. the product is neither intended nor warranted for use in equipment or systems that require extraordinarily high levels of quality and/or reliability and/or a malfunction or failure of which may c ause loss of human life, bodily injury, serious property damage or serious public impact , including but not limited to, equipment used in nuclear facilities, equipment used in the aerospace industry, medical equipment, equipment used for automobiles, train s, ships and other transportation, traffic signaling equipment, equipment used to control combustions or explosions, safety devices, elevators and escalators, devices related to electric power, and equipment used in finance - related fields. do not use produ ct for the above use unless specifically agreed by akm in writing . 3. though akm works continually to improve the products quality and reliability, you are responsible for complying with safety standards and for providing adequate designs and safeguards f or your hardware, software and systems which minimize risk and avoid situations in which a malfunction or failure of the product could cause loss of human life, bodily injury or damage to property, including data loss or corruption. 4. do not use or otherw ise make available the product or related technology or any information contained in this document for any military purposes, including without limitation, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological w eapons or missile technology products (mass destruction weapons). when exporting the p roducts or related technology or any information contained in this document, you should comply with the applicable export control laws and regulations and follow the proc edures required by such laws and regulations. the p roducts and related technology may not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any applicable domestic or foreign laws or regulations. 5 . please contact akm sales representative for details as to environmental matters such as the rohs compatibility of the product. please use the product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the eu rohs directive. akm assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 6. resale of the product with provisions different from the stateme nt and/or technical features set forth in this document shall immediately void any warranty granted by akm for the product and shall not create or extend in any manner whatsoever , any liability of akm. 7. this document may not be reproduced or duplicated, in any form, in whole or in part, without prior written consent of akm .

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