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march 2006 fsa4157, fsa4157a low voltage 1 ? spdt analog switch ?006 fairchild semiconductor corporation 1 www.fairchildsemi.com fsa4157, fsa4157a rev. 1.0.1 fsa4157, fsa4157a low voltage 1 ? spdt analog switch features fsa4157a features lower i cc when the s input is lower than v cc maximum 1.15 ? on resistance (r on ) at 4.5v v cc 0.3 ? max r on ?tness at 4.5v v cc space saving 6-lead pb-free micropak and sc70 6-lead surface mount packages broad v cc operating range: ?fsa4157: 1.65v to 5.5v ?fsa4157a: 2.7v to 5.5v f ast turn-on and turn-off time break-before-make enable circuitry over-voltage tolerant ttl compatible control circuitry general description fsa4157 and fsa4157a are high performance single p ole/double throw (spdt) analog switches. both devices feature ultra low r on of 1.15 ? maximum at 4.5v v cc and will operate over the wide v cc r ange of 1.65v to 5.5v for fsa4157, and 2.7v to 5.5v for fsa4157a. the device is fabricated with sub-micron cmos technology to achieve fast switching speeds and is designed for break-before-make operation. the select input is ttl level compatible. the fsa4157a features very low quiescent current even when the control voltage is lower than the v cc supply. this feature services the mobile handset applications ve ry w ell allowing for the direct interface with baseband processor general purpose i/os. te c hnology description the fairchild switch family derives from and embodies f airchilds proven switch technology used for several y ears in its 74lvxl384 (fst3384) bus switch product. ordering information pb-free package per jedec j-std-020b. note: 1. ?nl indicates lead-free package (per jedec j-std-020b). device available in tape and reel only. order number package number product code t op mark package description supplied as fsa4157p6 maa06a a57 6-lead sc70, eiaj sc88, 1.25mm wide 250 units on tape and reel fsa4157p6x maa06a a57 6-lead sc70, eiaj sc88, 1.25mm wide 3k units on tape and reel fsa4157p6x_nl (1) maa06a a57 pb-free 6-lead sc70, eiaj sc88, 1.25mm wide 3k units on tape and reel fsa4157l6x mac06a eg pb-free 6-lead micropak, 1.0mm wide 5k units on tape and reel fsa4157ap6 maa06a b57 6-lead sc70, eiaj sc88, 1.25mm wide 250 units on tape and reel fsa4157ap6x maa06a b57 6-lead sc70, eiaj sc88, 1.25mm wide 3k units on tape and reel fsa4157ap6x_nl (1) maa06a b57 pb-free 6-lead sc70, eiaj sc88, 1.25mm wide 3k units on tape and reel fsa4157al6x mac06a eu pb-free 6-lead micropak, 1.0mm wide 5k units on tape and reel micropak ? is a trademark of fairchild semiconductor corporation.
2 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 analog symbols truth table h = high logic level l = low logic level pin descriptions 1 6 b 1 s 2 5 gnd v cc 3 4 b 0 a pin assignment for sc70 (top view) 1 6 b 1 s 2 5 gnd v cc 3 4 b 0 a pin assignment for micropak (top through view) control input(s) function lb 0 connected to a hb 1 connected to a pin names function a, b 0 , b 1 data ports s control input
3 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 absolute maximum ratings the ?bsolute maximum ratings are those values beyond which the safety of the device cannot be guaranteed. the device should not be operated at these limits. the parametric values de?ed in the electrical characteristics tables are not guaranteed at the absolute maximum ratings. the ?ecommended operating conditions table will de?e the conditions for actual device operation. recommended operating conditions (3) notes: 2. the input and output negative ratings may be exceeded if the input and output diode current ratings are observed. 3. control input must be held high or low and it must not ?at. symbol parameter rating v cc supply voltage ?.5v to +6.0v dc switch voltage (2) ?.5v to v cc +0.5v v in dc input voltage (2) ?.5v to +6.0v dc input diode current ?0ma switch current 200ma p eak switch current (pulse at 1ms duration, <10% duty cycle) 400ma p d po w er dissipation @ 85? sc70 6l package micropak 6l package 180mw 180mw t stg storage temperature range ?5? to +150? t j maximum junction temperature +150? t l lead temperature (soldering, 10 seconds) +260? esd (human body model) fsa4157a 7500v symbol parameter rating v cc supply voltage fsa4157 fsa4157a 1.65v to 5.5v 2.7v to 5.5v control input voltage 0v to v cc switch input voltage 0v to v cc operating temperature ? 40 c to + 85 c thermal resistance ja in still air sc70 6l package micropak 6l package 350?/w 330?/w (estimated)
4 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 dc electrical characteristics (all typical values are @ 25 c unless otherwise speci?d) notes: 4. measured by the voltage drop between a and b pins at the indicated current through the switch. on resistance is deter- mined by the lower of the voltage on the two (a or b ports). 5. ? r on = r on max ?r on min measured at identical v cc , temperature and voltage. 6. flatness is dened as the difference between the maximum and minimum value of on resistance over the specied range of conditions. symbol parameter conditions v cc (v) t a = units + 25? - 40? to + 85? min. typ. max. min. max. v ih input voltage high 2.7 to 3.6 2.0 v 4.5 to 5.5 2.4 v il input voltage low (fsa4157a only) 2.7 to 3.6 0.4 v 2.7 to 3.6 0.6 4.5 to 5.5 0.8 i in control input leakage v in = 0v to v cc 2.7 to 3.6 ? 1.0 1.0 a 4.5 to 5.5 ? 1.0 1.0 i no(off) , i nc(off) off leakage current of port b 0 and b 1 a = 1v, 4.5v, b 0 or b 1 = 4.5v, 1v 5.5 ?.0 2.0 ? 20.0 20.0 na i a(on) on leakage current of port a a = 1v, 4.5v, b 0 or b 1 = 1v, 4.5v or floating 5.5 ? 4.0 4.0 ? 40.0 40.0 na r on switch on resistance (4) i out = 100ma, b 0 or b 1 = 1.5v 2.7 2.6 4.0 4.3 ? i out = 100ma, b 0 or b 1 = 3.5v 4.5 0.95 1.15 1.3 ? r on on resistance matching between channels (5) i out = 100ma, b 0 or b 1 = 1.5v 4.5 0.06 0.12 0.15 ? r flat(on) on resistance flatness (6) i out = 100ma, b 0 or b 1 = 0v, 0.75v, 1.5v 2.7 1.4 ? i out = 100ma, b 0 or b 1 = 0v, 1v, 2v 4.5 0.2 0.3 0.4 i cc quiescent supply current v in = 0v or v cc , i out = 0v 3.6 0.1 0.5 1.0 a 5.5 0.1 0.5 1.0 ? i cc increase in i cc per input one input at 2.7v, others at v cc or gnd (fsa4157a only) 4.3 0.2 10.0 a
5 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 ac electrical characteristics (all typical values are @ 25 c unless otherwise speci?d) capacitance symbol parameter conditions v cc (v) t a = units figure + 25 c ? 40 c to + 85 c min. typ. max. min. max. t on tu rn on time b 0 or b 1 = 1.5v, r l = 50 ? , c l = 35pf (fsa4157a only) 2.7 to 3.6 60.0 65.0 ns figure 6 b 0 or b 1 = 1.5v, r l = 50 ? , c l = 35pf 2.7 to 3.6 50.0 60.0 b 0 or b 1 = 3v, r l = 50 ? , c l = 35pf 4.5 to 5.5 35.0 40.0 t off tu rn off time b 0 or b 1 = 1.5v, r l = 50 ? , c l = 35pf 2.7 to 3.6 20.0 30.0 ns figure 6 b 0 or b 1 = 3v, r l = 50 ? , c l = 35pf 4.5 to 5.5 15.0 20.0 t b-m break before make time 2.7 to 3.6 ns figure 10 4.5 to 5.5 20.0 (fsa4157a only) 4.5 to 5.5 25.0 q charge injection c l = 1.0nf, v ge = 0v, r gen = 0 ? 2.7 to 3.6 10.0 pc figure 9 4.5 to 5.5 20.0 oirr off-isolation f = 1mhz, r l = 50 ? 2.7 to 3.6 ?0.0 db figure 8 4.5 to 5.5 ?0.0 xtalk crosstalk f = 1mhz, r l = 50 ? 2.7 to 3.6 ?0.0 db figure 8 4.5 to 5.5 ?0.0 bw ? 3db bandwidth r l = 50 ? 2.7 to 3.6 300 mhz figure 11 4.5 to 5.5 300 thd total harmonic distortion r l = 600 ? , v in = 0.5v p.p, f = 20hz to 20khz 2.7 to 3.6 0.002 % figure 12 4.5 to 5.5 0.002 symbol parameter conditions v cc (v) t a = units figure number + 25 c40 c to + 85 c min. typ. max. min. max. c in control pin input capacitance f = 1mhz 0.0 3.5 pf figure 10 c off b port off capacitance f = 1mhz 4.5 12.0 pf figure 10 c on on capacitance f = 1mhz 4.5 40.0 pf figure 10
6 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 t ypical performance characteristics figure 1. off-isolation, v cc = 2.7v to 5.5v figure 2. crosstalk, v cc = 2.7v to 5.5v figure 3. bandwidth, v cc = 2.7v to 5.5v 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 11 0 100 1,000 off isolation (db) frequency (mhz) v cc = 2.7v 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 11 0 100 1,000 crosstalk (db) frequency (mhz) v cc = 2.7v 0 -1 -2 -3 -4 -5 -6 -7 -8 11 0 100 1,000 gain (db) frequency (mhz) c l = 0pf, v cc = 2.7v
7 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 t ypical characteristics figure 4. r on switch on resistance, i on = 100ma, v cc = 2.7v figure 5. r on switch on resistance, i on = 100ma, v cc = 4.5v 2.500 ?0 c v in = 1.500v r on = 2.032 ohms 2.160 1.819 1.479 1.139 0.799 -0.600 0.000 0.600 1.200 v in (v) r on ( ? ) 1.800 2.400 3.000 25 c v in = 1.500v r on = 2.161 ohms 85 c v in = 1.500v r on = 2.322 ohms 1.500 ?0 c v in = 3.500v r on = 804.300 mohms 1.327 1.154 0.981 0.808 0.635 -0.960 0.000 0.960 1.920 v in (v) r on ( ? ) 2.880 3.840 4.800 25 c v in = 3.500v r on = 999.800 mohms 85 c v in = 3.500v r on = 1.182 ohms
8 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 ac loading and waveforms figure 6. turn-on/off timing figure 7. break before make timing figure 8. off isolation and crosstalk t off t r < 2.5ns t f < 2.5ns 0.9 x v out 0.9 x v out r l 50 ? c l 35 ? 50% gnd v inh v inl control input switch output o v out v out i on v cc v b0 v b1 b 0 or b 1 c l includes fixture and stray capacitance logic input waveforms inverted for switches that have the opposite logic sense a s or s gnd control input control input c l includes fixture and stray capacitance v bn b 0 b 1 a v out v inh v inl t b-m v cc 0.9 x v out 50% r l 50 ? c l 35 ? v out gnd fsa4157 off-isolation = 20log network analyzer meas ref a v out v in on-loss = 20log v out v in crosstalk = 20log v out v in b o b 1 s v cc 10nf 0 or v cc v cc 50 ? 50 ? 50 ? 50 ? 50 ? v out v in
9 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 ac loading and waveforms (continued) figure 9. charge injection figure 10. on/off capacitance measurement setup figure 11. bandwidth figure 12. harmonic distortion gnd a b 0 or b 1 r gen v ge + s v cc v out ? v out q = ( ? v out )(c l ) in in on on off off off off c l control input v out gnd a s v cc v inl or v inh f = 1mhz capacitance meter 10nf b 0 or b 1 gnd a b n v cc s 10nf analyzer signal generator 0dbm logic input 0v or v cc 50 ? gnd a b n v cc s 10nf analyzer signal generator logic input 0v or v cc v in r l
10 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 t ape speci?ation t ape format for micropak 6 package designator tape section number cavities cavity status cover tape status l6x leader (start end) 125 (typ) empty sealed carrier 5000 filled sealed tr ailer (hub end) 75 (typ) empty sealed
11 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 reel dimensions for micropack 6 inches (millimeters) t ape siz e abcdn w1 w2 w3 8 mm 7.0 (177.8) 0.059 (1.50) 0.512 (13.00) 0.795 (20.20) 2.165 (55.00) 0.331 + 0.059 / ?.000 (8.40 + 1.50 / ? 0.00) 0.567 (14.40) w1 + 0.078 / ? 0.039 (w1 + 2.00 / ? 1.00)
12 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 physical dimensions millimeters unless otherwise noted pb-free 6-lead sc70, eiaj sc88, 1.25mm wide pa ck ag e number maa06a
13 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch fsa4157, fsa4157a rev. 1.0.1 physical dimensions millimeters unless otherwise noted pb-free 6-lead micropak, 1.0mm wide pa ck ag e number mac06a
14 www.fairchildsemi.com fsa4157, fsa4157a low voltage 1 ? spdt analog switch disclaimer fairchild semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. trademarks the following are registered and unregistered trademarks fairchild semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. life support policy fa irchild?s products are not authorized for use as critical components in life support devices or systems without the express written approval of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 2. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. product status definitions definition of terms datasheet identification product status definition advance information preliminary no identification needed obsolete this datasheet contains the design specifications for product development. specifications may change in any manner without notice. this datasheet contains preliminary data, and supplementary data will be published at a later date. fairchild semiconductor reserves the right to make changes at any time without notice in order to improve design. this datasheet contains final specifications. fairchild semiconductor reserves the right to make changes at any time without notice in order to improve design. this datasheet contains specifications on a product that has been discontinued by fairchild semiconductor. the datasheet is printed for reference information only. formative or in design first production full production not in production isoplanar littlefet microcoupler microfet micropak microwire msx msxpro ocx ocxpro optologic optoplanar p acman pop power247 poweredge f ast f astr fps frfet globaloptoisolator gto hisec i 2 c i-lo implieddisconnect intellimax rev. i18 acex activearray bottomless build it now coolfet crossvolt dome ecospark e 2 cmos ensigna f act f act quiet series powersaver powertrench qfet qs qt optoelectronics quiet series rapidconfigure rapidconnect serdes scalarpump silent switcher smart start spm ste alth superfet supersot-3 supersot-6 supersot-8 syncfet tcm tinylogic tinyopto trutranslation uhc ultrafet unifet vcx wire across the board. around the world. the power franchise programmable active droop fsa4157, fsa4157a rev. 1.0.1

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