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[AK1221] m s1400 - e - 02 1 201 3/05 AK1221 3500m hz high linearity mixer 1. overview the ak122 1 is high linearity mixer. rf and lo frequency range coverage is from 7 00 to 35 00mhz and if coverage is from 20 to 2 00mhz. the rf input provide s single - ended 50 ? interface . lo ports are 50 ? matched and complementary input should be decoupled to the ground. if output ports are differential open drain outputs. the linearity and p ower consumption performances can be optimize d by the resistance connected to the bias pin. 2. features ? operating frequency : 7 00mhz to 35 00 mhz ? linearity vs . power s electable architecture power consumption : 45 ma , iip3 : +25 dbm , gain : - 0.5 db , nf : 14 db ? lo input level : 0 dbm 5db ? operating supply voltage : 4.75 to 5.25 v ? package : 16pin uqfn ( 0.5mm pitch, 3mm ? 3mm ? 0.60mm ) ? operating temperature range : - 40 to 85 ? c
[AK1221] m s1400 - e - 02 2 201 3/05 3. table contents 1. overview ________________________________ _____________________ 1 2. features ________________________________ _____________________ 1 3. table contents ________________________________ ________________ 2 4. block diagram ________________________________ ________________ 3 5. system diagram ________________________________ _______________ 4 6. pin functional description ________________________________ ______ 5 7. absolute maximum ratings ________________________________ ______ 7 8. recommended operating range ________________________________ _ 7 9. electrical characteristics ________________________________ ________ 8 10. typical performance ________________________________ ___________ 9 11. typical evaluation board schematic _____________________________ 16 12. lsi interface schematic ________________________________ ________ 18 13. outer dimensions ________________________________ _____________ 19 14. marking ________________________________ _____________________ 20
[AK1221] m s1400 - e - 02 3 201 3/05 4. block diagram fig. 1 block diagram ifout n ifout p rfin mixer lo buffer iref bias loinn loinp vdd vss
[AK1221] m s1400 - e - 02 4 201 3/05 5. system diagram fig. 2 system diagram rf input impedance matching output load resistor 680 rfin loinn loinp ifoutp ifoutn AK1221 vss vss balun vdd (powerfeeding for open-drain output) vss vdd vss lo buffer iref mixer vss bias current adjustment resistor 22k to 56k rf input lo input if output 100pf 10nf if input impedance matching 100pf 10nf vss vdd vss
[AK1221] m s1400 - e - 02 5 201 3/05 6. pin functio nal 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 vss g ground pin 4 loinn ai lo input negative 5 loinp ai lo input positive 6 vdd p power supply 7 vdd p power supply 8 vdd p power supply 9 vdd p power supply 10 bias aio resistance pin for current adjustment connecting a resistor between this pin and ground. 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 vss g ground pin 14 vss g ground pin 15 vss g ground pin 16 vss g ground pin note) the exposed pad at the center of the backside should be connected to ground. ai : analog input pin ao : analog output pin aio : analog i/o pin p : power supply pin g : ground pin
[AK1221] m s1400 - e - 02 6 201 3/05 fig. 3 package pi n layout 1 3 14 15 16 1 2 3 4 5 6 11 10 9 8 7 12 top view vss vss vss vss vss loinn loinp vdd vdd vdd vdd bias ifoutn ifoutp rfin vss
[AK1221] m s1400 - e - 02 7 201 3/05 7. 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 12 dbm lo input power lopow 12 dbm storage temperature tst g - 55 125 ? 8. recommended operating range table 3 recommended operating range parameter symbol min. typ. max. unit remarks operat ing temperature ta - 40 85 ?
[AK1221] m s1400 - e - 02 8 201 3/05 9. electrical characteristics 1 unless otherwise noted if output = 1 50mhz , l o input level = - 5dbm to +5dbm , output load resisto r rload =680 ? , vdd= 4.75 to 5.25v , ta= - 40 ? c to 85 ? c parameter min . typ . max . unit remarks rf input frequency 7 00 35 00 mhz lo in put frequency 700 3500 mhz if output frequency 20 2 00 mhz lo input power - 5 0 +5 dbm current adjustment resist o r(bias) 22 56 k? bias=22k? k? bias=56k? rfin=2500mhz, current adjustment resistor = 33 k ? conversion gain - 2 .5 - 0.5 1.5 db ssb noise figure 14 16.5 db design guarantee value ip1db 7 10 dbm iip3 21 25 dbm design guarantee value
[AK1221] m s1400 - e - 02 9 201 3/05 10. typical performance unless otherwise noted, r f input =2500mhz, lo input =2350mhz, if output =150mhz, output load resistor (rload)=680 ? 1. current adjustment resistor vs. iip, nf, p1db, gain, idd fig. 4 current adjustment resistor vs. iip3, nf, p1db, gain, idd note ) a resistor with 5% tolerance are u sed. 10 12 14 16 18 20 22 24 26 28 30 22 27 32 37 42 47 52 iip3 [dbm] r_bias[kohm] 10 11 12 13 14 15 16 17 18 19 20 22 27 32 37 42 47 52 nf [db] r_bias[kohm] 0 2 4 6 8 10 12 14 22 27 32 37 42 47 52 ip1db [dbm] r_bias[kohm] -5 -4 -3 -2 -1 0 1 2 3 4 5 22 27 32 37 42 47 52 gain [db] r_bias[kohm] 10 20 30 40 50 60 70 80 90 100 22 27 32 37 42 47 52 idd [ma] r_bias[kohm]
[AK1221] m s1400 - e - 02 10 201 3/05 2. over temperature vs. iip3, nf, p1db, gain, idd fig. 5 over temperature vs. iip3, nf, ip1db, gain, idd resistance for current adjustment 22kohm 33kohm 56kohm 10 12 14 16 18 20 22 24 26 28 30 -40 10 60 iip3 [dbm] temp[ ] 10 11 12 13 14 15 16 17 18 19 20 -40 10 60 nf [db] temp[ ] 0 2 4 6 8 10 12 14 -40 10 60 ip1db [dbm] temp[ ] -5 -4 -3 -2 -1 0 1 2 3 4 5 -40 10 60 gain [db] temp[ ] 0 10 20 30 40 50 60 70 80 -40 10 60 idd [ma] temp[ ]
[AK1221] m s1400 - e - 02 11 201 3/05 3. supply voltage vs. iip3, nf, p1db, gain, idd fig. 6 supply voltage vs. iip3 , nf , ip1db , gain , idd resistance for current adjustment 22kohm 33kohm 56kohm 10 12 14 16 18 20 22 24 26 28 30 4.75 4.85 4.95 5.05 5.15 5.25 iip3 [dbm] vdd[v] 10 11 12 13 14 15 16 17 18 19 20 4.75 4.85 4.95 5.05 5.15 5.25 nf [db] vdd[v] 0 2 4 6 8 10 12 14 4.75 4.85 4.95 5.05 5.15 5.25 ip1db [dbm] vdd[v] -5 -4 -3 -2 -1 0 1 2 3 4 5 4.75 4.85 4.95 5.05 5.15 5.25 gain [db] vdd[v] 0 10 20 30 40 50 60 70 4.75 4.85 4.95 5.05 5.15 5.25 idd [ma] vdd[v]
[AK1221] m s1400 - e - 02 12 201 3/05 4. rf input frequency vs. iip3, nf, gain fig. 7 rf input frequency vs. iip3, nf, gain resistance for current adjustment 22kohm 33kohm 56kohm 10 12 14 16 18 20 22 24 26 28 30 700 1200 1700 2200 2700 3200 iip3 [dbm] rf [mhz] 10 11 12 13 14 15 16 17 18 19 20 700 1200 1700 2200 2700 3200 nf [db] rf [mhz] 5 6 7 8 9 10 11 12 13 14 15 700 1200 1700 2200 2700 3200 ip1db [dbm] rf [mhz] -5 -4 -3 -2 -1 0 1 2 3 4 5 700 1100 1500 1900 2300 2700 3100 3500 gain [db] rf [mhz]
[AK1221] m s1400 - e - 02 13 201 3/05 5. if input frequency vs. iip3, nf, gain fig. 8 if input frequency vs. iip3, nf, gain resistance for current adjustment 22kohm 33kohm 56kohm 10 12 14 16 18 20 22 24 26 28 30 20 40 60 80 100 120 140 160 180 200 iip3 [dbm] if [mhz] 12 13 14 15 16 17 18 19 20 20 40 60 80 100 120 140 160 180 200 nf [db] if [mhz] 5 6 7 8 9 10 11 12 13 14 15 20 40 60 80 100 120 140 160 180 200 ip1db [dbm] if [mhz] -5 -4 -3 -2 -1 0 1 2 3 4 5 20 40 60 80 100 120 140 160 180 200 gain [db] if [mhz]
[AK1221] m s1400 - e - 02 14 201 3/05 6. lo input power vs. iip3, nf, gain fig. 9 lo input power vs. iip3, nf, gain resistance for current adjustment 22kohm 33kohm 56kohm 10 12 14 16 18 20 22 24 26 28 30 -10 -5 0 5 10 iip3 [dbm] lo input[dbm] 10 11 12 13 14 15 16 17 18 19 20 -10 -5 0 5 10 nf [db] lo input[dbm] 0 2 4 6 8 10 12 14 -10 -5 0 5 10 ip1db [dbm] lo input[dbm] -5 -4 -3 -2 -1 0 1 2 3 4 5 -10 -5 0 5 10 gain [db] lo input[dbm]
[AK1221] m s1400 - e - 02 15 201 3/05 7. output load resistor fig. 10 output load resistor 8. leakage rfin=2500mhz, - 20dbm,lo input=2350mhz,0dbm,rload=680 ? , ta=25 vdd=5v parameter bias typ. unit rf C ? ? C ? ? C ? ? C ? ? 22kohm 33kohm 56kohm 10 12 14 16 18 20 22 24 26 28 30 430 480 530 580 630 680 730 780 iip3 [dbm] rl [ohm] 12 13 14 15 16 17 18 430 480 530 580 630 680 730 780 nf [db] rl [ohm] 5 7 9 11 13 15 17 19 430 480 530 580 630 680 730 780 ip1db [dbm] rl [ohm] -5 -4 -3 -2 -1 0 1 2 3 4 5 430 480 530 580 630 680 730 780 gain [db] rl [ohm]
[AK1221] m s1400 - e - 02 16 201 3/05 11. typical evaluation board schematic 1. typical evaluation board schematic fig. 1 1 typical evaluation board schematic note 1) the open drain out put needs power feedi ng via a inductor. ( ifoutp pin and ifoutn pin ) note 2) it is necessary to adjust impedance matching as to its setting frequency. ( rf input and if output) 2. example of impedance matching 2 - 1 rfin frequency[mhz] c1[pf] c 2 [pf] l1[nh] l 2 [nh] impedance[ohm] 700 none 20 none 39 42.9 - j5.4 2500 39 2.2 1.8 10 61.2 - j12.8 3500 39 1.0 1.0 10 40.7 - j5.1 rfin l1 rf input c1 ak12 2 1 c 2 l 2 rf input impedance matching output load resistor 680 rfin loinn loinp ifoutp ifoutn AK1221 vss vss balun vdd (powerfeeding for open-drain output) vss vdd vss lo buffer iref mixer vss bias current adjustment resistor 22k to 56k rf input lo input if output 100pf 10nf if input impedance matching 100pf 10nf vss vdd vss
[AK1221] m s1400 - e - 02 17 201 3/05 2 - 2 ifout 2 C 3 loinp/loinn loinn loinp vss lo input 39pf 39pf AK1221 frequency [mhz] r1 [ ohm] c1 [pf] c2 [pf] l1 [nh] l2 [nh] impedance[ohm] 20 680 15 none 1200 1200 56.6 C j4.5 150 680 1 n one 180 180 52.6 C j1.6 200 680 none none 150 150 47.0 C j11.9 ifoutp ifoutn ak122 1 output load resistor rload balun vss if output 100pf 10nf vss c 1 r1 l 1 l 2 vdd c2 (powefeeding for open - drain outp ut) *1)murata lqw21a series *1 *1 *2 *2 *2 *2 *2)murata lqw18a series
[AK1221] m s1400 - e - 02 18 201 3/05 12. lsi interface schematic no. name i/o function 1 rfin i rf i nput pin 4 loinn i l o i nput pins 5 loinp 10 bias i/o analog i/o pin 11 ifoutn o if o utput pins 12 ifoutp 300 ? ifoutp ifoutn
[AK1221] m s1400 - e - 02 19 201 3/05 13. outer dimensions fig .12 outer dimensions note 1. 1 pin marking is only a reference for the 1 pin location on the top of package. 1 pin marking (note 1) 1 1 3 5 9 4 8 12 1 6
[AK1221] m s1400 - e - 02 20 201 3/05 14. marking (a) style : u qfn (b) number of pins : 16 (c) 1 pin marking: : (d) product number : 122 1 (e) date code : ywwl (4 digits) y : lower 1 digit of calendar year (year 201 2 2 , 201 3 3 ...) ww : week l : lot identification, given to each product lot which is made in a week ? lot id is given in alphabetical order (a , b, c). fig. 13 marking ywwl (e) (c) 122 1 (d)
[AK1221] m s1400 - e - 02 21 201 3/05 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 us e 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 provided only to illust rate 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 righ ts 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 los ses 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 cause loss of human life, bodily injury, serious property damage o r 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, trains, ships and other transportation, traffic signaling equipment, e quipment 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 product 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 for your hardware, software and systems which minimize risk and av oid 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 otherwise make available the product or related technology or any infor mation contained in this document for any military purposes, including without limitation, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons 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 procedures required by such laws and regulations. the p roducts and re lated 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 envir onmental 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 statement and/or technical features set forth in this document shall imm ediately 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 o f akm .

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