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? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 fsa2257 low r on low-voltage dual spdt bi -directional analog switch january 2007 fsa2257 low r on low-voltage dual spdt bi-directional analog switch features maximum 1.15 on resistance (r on ) for 4.5v supply 0.3 maximum r on flatness for +5v supply space-saving pb-free micropak? packaging broad v cc operating range: 1.65v to 5.5v fast turn-on / turn-off time break-before-make enable circuitry over-voltage tolerant ttl-compatible control input applications cell phone pda ultra-portable description the fsa2257 is a high-performance bi-directional dual single-pole/double-throw (spdt) analog switch. this switch can be configured as either a multiplexer or a de- multiplexer by select pins. the device features ultra-low r on of 1.3 maximum at 4.5v v cc and operates over the wide v cc range of 1.65v to 5.5v. the device is fabri- cated with submicron cmos technology to achieve fast switching speeds and is designed for break-before-make operation. the select inpu t is ttl-level compatible. ordering information note: 1. lead-free package per jedec j-std-020b. device available in tape and reel only. figure 1. block diagram order number package number pb-free product code top mark package description packing method fsa2257l10x (1) mac010a yes ep 10-lead micropak?, 1.6 x 2.1mm 5000 units on tape and reel fsa2257mtcx (1) mtc14 yes fsa2257 14-lead thin shrink small outline package (tssop), jedec mo-153, 4.4mm wide 2500 units on tape and reel FSA2257MUX (1) mua101a yes fsa 2257 10-lead molded small outline package (msop), jedec mo-187, 3.0mm 4000 units on tape and reel select pin base band voice/bell ring base band processors with melody ring generation 8 loud speaker amp fsa2257 32 earpiece micropak ? is a trademark of fairchild semiconductor corporation.
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 2 connection diagrams figure 2. pin assignments for tssop (top view) fig ure 3. pad assignments for micropak (top view) figure 4. pin assignments for msop (top view) analog symbols figure 5. analog symbols (top view) truth table pin descriptions 1 2 3 4 5 6 7 1a gnd 1b 0 2a gnd 2b 0 nc 14 13 12 11 10 9 8 1a 9876 1234 5 10 gnd v cc 1s 1b 0 1b 1 2a 2s 2b 0 2b 1 v cc 1s 1b 1 v cc 2s 2b 1 nc 1 2 3 4 5 2b 1 2s v cc 1a 1b 0 2b 0 2a gnd 1s 1b 1 10 9 8 7 6 1a 9 8 7 6 1 2 3 4 5 10 gnd v cc 1s 1b 0 1b 1 2a 2s 2b 0 2b 1 (top through view) control input(s) function low logic level b 0 connected to a high logic level b 1 connected to a pin names function a, b 0 , b 1 data ports s control input
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 3 absolute maximum ratings stresses exceeding the absolute maximu m ratings may damage the device. the de vice may not function or be opera- ble above the recommended operating conditions and stressing the parts to these levels is not recommended. in addi- tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. the absolute maximum ratings are stress ratings only. note: 2. the input and output negative voltage ratings may be exceeded if the input and output diode curr ent ratings are observed. recommended oper ating conditions the recommended operating conditions table defines the conditions for actual device operation. recommended operating conditions are specified to ensure optimal perfor mance to the datasheet specif ications. fairchild does not recommend exceeding them or designing to absolute maximum ratings. note: 3. unused control inputs must be held high or low. they may not float. symbol parameter min. max. unit v cc supply voltage ?0.5 +6.0 v v sw dc switch voltage (2) ?0.5 v cc +0.5 v v in dc input voltage (2) ?0.5 +6.0 v i ik input diode current ?50 ma switch current 200 peak switch current (pulsed at 1ms duration, <10% duty cycle) 400 t stg storage temperature range ?65 +150 c t j maximum junction temperature +150 c t l lead temperature (soldering, 10 seconds) +260 c esd human body model 8000 v symbol parameter min. max. unit v cc supply voltage 1.65 5.5 v v in control input voltage (3) 0 v cc v v sw switch input voltage 0 v cc v t a operating temperature ? 40 + 85 c
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 4 dc electrical characteristics all typical values are at 25 c unless otherwise specified. notes: 4. on resistance is determined by the voltage drop between a and b pins at the indicated current through the switch. 5. r on = r onmax ? r onmin measured at identical v cc , temperature, and voltage. 6. flatness is defined as the difference between the maximum and minimum value of on resistance over the specified range of conditions. symbol parameter conditions v cc (v) t a = + 25c t a = ? 40c to + 85c units 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 2.7 to 3.6 0.6 v 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 = 1v, 4.5v 5.5 ?2.0 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 micropak (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 switch on resistance msop / tssop (4) i out = 100ma, b 0 or b 1 = 1.5v 2.7 2.8 4.5 i out = 100ma, b 0 or b 1 = 3.5v 4.5 1.5 2.3 r on on resistance matching 5etween channels (4) micropak i out = 100ma, b 0 or b 1 = 3.5v 4.5 0.06 0.12 0.15 on resistance matching between channels (5) msop / tssop i out = 100ma, b 0 or b 1 = 3.5v 4.5 0.7 0.3 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
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 5 ac electrical characteristics all typical values are at 25 c unless otherwise specified. capacitance symbol parameter conditions v cc (v) t a = + 25 ct a = ? 40 c to + 85 c figure number min. typ. max. min. max. units t on turn-on time b 0 or b 1 = 1.5v, r l = 50 , c l = 35pf 2.7 to 3.6 50.0 60.0 ns figure 6. b 0 or b 1 = 3.0v, r l = 50 , c l = 35pf 4.5 to 5.5 35.0 40.0 t off turn-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 = 3.0v, r l = 50 , c l = 35pf 4.5 to 5.5 15.0 20.0 t b-m break-before- make time b 0 or b 1 = 1.5v, r l = 50 , c l = 35pf 2.7 to 3.6 1.0 ns figure 7. b 0 or b 1 = 3.0v, r l = 50 , c l = 35pf 4.5 to 5.5 20.0 1.0 q charge injection c l = 1.0nf, v gen = 0v, r gen = 0 2.7 to 3.6 20.0 pc figure 9. 4.5 to 5.5 10.0 oirr off isolation f = 1mhz, r l = 50 2.7 to 3.6 ?70.0 db figure 8. 4.5 to 5.5 ?70.0 xtalk crosstalk f = 1mhz, r l = 50 2.7 to 3.6 ?75.0 db figure 8. 4.5 to 5.5 ?75.0 bw ? 3db bandwidth r l = 50 2.7 to 3.6 350 mhz figure 11. 4.5 to 5.5 350 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 = + 25 c t a = 40 to + 85 c units figure number 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 a port on capacitance f = 1mhz 4.5 40.0 pf figure 10.
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 6 ac loading and waveforms figure 6. turn-on / turn-off timing figure 7. break-before-make timing figure 8. off isolation and crosstalk t off t r = t f = 2.5ns 0.9 x v out 0.9 x v out r l 50 c l 35pf 50% gnd 3v 0v control input switch output 0 v out v out t on v cc v cc v b 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 s gnd control input control input c l includes fixture and stray capacitance v bn b 0 b 1 a v out 3v 0v t d v cc v cc 0.9 x v out 50% r l 50 c l 35pf v out t r = t f = 2.5ns gnd off-isolation = 20log network analyzer meas ref 0dbm a v out v in v out v in v out v in on-loss = 20log crosstalk = 20log b o b 1 s v cc 10nf 0 or v cc v cc 50 v out v in 50 50 50 50
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 7 ac loading and waveform (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 gen + 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 b 0 or b 1 s v+ 0v or v cc f = 1mhz capacitance meter 10nf 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 v in s 10nf analyzer signal generator logic input 0v or v cc r l
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 8 package specifications tape dimensions for micropak 10 dimensions are in millimeters unless otherwise specified. reel dimensions for micropak 10 dimensions are in inches (millim eters) unless otherwise noted. package designator tape section number cavities cavity status cover tape status l10x leader (start end) 125 (typ) empty sealed carrier 5000 filled sealed trailer (hub end) 75 (typ) empty sealed tape sizeabcdn w1 w2 w3 (8mm) 7.0 (177.8) 0.059 (1.50) 0.512 (13.00) 0.795 (20.20) 2.165 (55.00) 0.331 + 0.059 / ?0.000 (8.40 + 1.50 / ? 0.00) 0.567 (14.40) w1 + 0.078 / ? 0.039 (w1 + 2.00 / ? 1.00)
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 9 tape dimensions for msop dimensions are in inches (millimet ers) unless otherwise specified. reel dimensions for msop dimensions are in inches (millimeter s) unless otherwise specified tape sizeabcdnw1w2w3 (12mm) 13 (330) 0.059 (1.5) 0.512 (13) 0.795 (20.2) 7.008 (178) 0.448 (12.4) 0.724 (18.4) 0.468-0.606 (11.9 -15.4)
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 10 physical dimensions dimensions are in millimet ers unless otherwise noted. figure 13. 10-lead micropak, 1.6 x 2.1mm
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 11 physical dimensions dimensions are in millimeter s unless otherwise noted. figure 14. 14-lead thin shrink small outl ine package (tssop), jedec mo-153, 4.4mm wide
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 12 physical dimensions dimensions are in millimet ers unless otherwise noted. figure 15. 10-lead molded small outlin e package (msop), jedec mo-187, 3.0mm
fsa2257 low r on low-voltage dual spdt bi -directional analog switch ? 2006 fairchild semiconductor corporation www.fairchildsemi.com fsa2257 rev. 1.0.3 13

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