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sgm4157 spdt 1 ? analog switch general description the sgm4157 is a single low on-resistance (1 ? ), fast single-pole double-throw (spdt) cmos switch. it is designed for low operating voltage, high current switching of speaker output for cell phone applications. the sgm4157 can handle a balanced microphone/speaker generator in a monophone mode. the device contains a break-before-make (bbm) feature. the control input, in, tolerates input drive signals up to 5.5v, independent of supply voltage. sgm4157 is available in green tdfn-22-6l package. applications portable instrumentation battery-operated equipment computer peripherals cell phones pdas mp3s function table logic no nc 0 off on 1 on off switches shown for logic ?0? input. features voltage operation: 1.8v to 5.5v on-resistance: 0.8 ? (typ) at 4.5v -3db bandwidth: 80mhz high off-isolation: -60db at 1mhz rail-to-rail operation low static power ttl/cmos compatible break-before-make switching extended industrial temperature range: -40 to +85 microsize package pin configuration (top view) 1 2 3 4 6 in no tdfn-22-6l gnd nc com sgm4157yd6 5 v+ pin description name pin function no 1 normally-open terminal. gnd 2 ground. nc 3 normally-closed terminal. com 4 common terminal. v + 5 power supply. in 6 digital control pin to connect the com terminal to the no or nc terminals. exposed pad gnd exposed pad should be soldered to pcb board and connected to gnd. note: no, nc and com terminal may be an input or output. rev. b. 4 sg micro corp www.sg-micro.com
spdt 1 ? analog switch 2 sgm4157 sg micro corp www.sg-micro.com package/ordering information model pin- package specified temperature range ordering number package marking package option sgm4157 tdfn-22-6l -40 to +85 sgm4157yd6/tr 4157 tape and reel, 3000 absolute maximum ratings v + , in to gnd........... ...................... ....................... ....-0.3v to 6v analog, digital voltage range (1) .................... -0.3v to (v + ) + 0.3v continuous current no, nc, or com............................200ma peak current no, nc, or com......................................300ma operating temperature range .................. ..........-40 to +85 junction temperature..................................................... 150 storage temperature range........................... -65 to +150 lead temperature (soldering, 10s)..................................260 esd (hbm).............. ...................... .................. ................3000v notes: 1. signals on nc, no, or com or in exceeding v + will be clamped by internal diodes. limit forward diode current to maximum current ratings. 2. stresses beyond those listed under ?absolute maximum ratings ? may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond thos e indicated in the operational sections of the specifications is not implied. exposure to absolute ma ximum rating conditions for extended periods may affect device rel iability. caution this integrated circuit can be damaged by esd if you don?t pay attention to esd protection. sgmicro recommends that all integrated circuits be handled with appropriate precautions. fa ilure to observe proper handling and installation procedures can cause damage. esd damage can range from subtle performance degradation to complete device failure. precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. sgmicro reserves the right to make any chang e in circuit design, specification or other related things if necessary without not ice at any time. please contact sgmicro sales office to get the latest datasheet.
spdt 1 ? analog switch 3 sgm4157 sg micro corp www.sg-micro.com electrical characteristics (v + = +4.5v to +5.5v, v ih = +2.0 v, v il = +0.8v, t a = -40 to +85 . typical values are at v + = 5.0v, t a = +25 , unless otherwise noted.) parameter symbol conditions temp min typ max units analog switch analog signal range v no , v nc , v com -40 to +85 0 v + v +25 0.8 ? on-resistance r on v + = 4.5v, v no or v nc = 3.5v, i com = -10ma, test circuit 1 -40 to +85 2 ? +25 0.43 ? on-resistance match between channels ? r on v + = 4.5v, v no or v nc = 3.5v, i com = -10ma, test circuit 1 -40 to +85 0.47 ? +25 0.2 ? on-resistance flatness r flat(on) v + = 4.5v, v no or v nc = 1.0v, 2.0v, 3.5v, i com = -10ma, test circuit 1 -40 to +85 0.3 ? source off leakage current i nc(off) , i no(off) v + = 5.5v, v no or v nc = 1.0v, 4.5v, v com = 4.5v , 1.0v -40 to +85 1 a channel on leakage current i nc(on) , i no(on) , i com(on) v + = 5.5v, v com = 1.0v, 4.5v, v no or v nc = 1.0v, 4.5v, or floating -40 to +85 1 a digital inputs input high voltage v inh -40 to +85 1.5 v input low voltage v inl -40 to +85 0.6 v input leakage current i in v + = +5.5v, v in = 0v or 5.5v -40 to +85 0.001 1 a dynamic characteristics turn-on time t on v no or v nc = 3.0v, v ih = 1.5v, v il = 0v, r l = 300 ? , c l = 35pf, test circuit 2 +25 20 ns turn-off time t off v no or v nc = 3.0v, v ih = 1.5v, v il = 0v, r l = 300 ? , c l = 35pf, test circuit 2 +25 23 ns break-before-make time delay t d v no1 or v nc1 = v no2 or v nc2 = 3v, r l = 300 ? , c l = 35pf, test circuit 3 +25 23 ns skew t skew rs = 39 ? , c l = 50pf, test circuit 4 +25 9.0 ns f = 10mhz +25 -40 db off isolation o iso r l = 50 ? , signal = 0dbm, c l = 5pf, test circuit 5 f = 1mhz +25 -60 db -3db bandwidth bw r l = 50 ? , signal = 0dbm, c l = 5pf, test circuit 6 +25 80 mhz source off capacitance c nc(off) , c no(off) f = 1mhz +25 20 pf channel on capacitance c nc(on) , c no(on) , c com(on) f = 1mhz +25 73 pf power requirements power supply range v + -40 to +85 1.8 5.5 v power supply current i + v + = +5.5v, v in = 0v or v + -40 to +85 0.001 3 a
spdt 1 ? analog switch 4 sgm4157 sg micro corp www.sg-micro.com electrical characteristics (v + = +2.7v to +3.6v, v ih = +1.4 v, v il = +0.5v, t a = -40 to +85 . typical values are at v + = 3.0v, t a = +25 , unless otherwise noted.) parameter symbol conditions temp min typ max units analog switch analog signal range v no , v nc , v com -40 to +85 0 v + v +25 1.9 ? on-resistance r on v + = 2.7v, v no or v nc = 1.5v, i com = -10ma, test circuit 1 -40 to +85 2.3 ? +25 0.45 ? on-resistance match between channels ? r on v + = 2.7v, v no or v nc = 1.5v, i com = -10ma, test circuit 1 -40 to +85 0.5 ? +25 0.2 ? on-resistance flatness r flat(on) v + = 2.7v, v no or v nc = 1.0v, 1.5v, 2.0v, i com = -10ma, test circuit 1 -40 to +85 0.35 ? source off leakage current i nc(off) , i no(off) v + = 3.6v, v no or v nc = 0.3v, 3.3v, v com = 3.3v, 0.3v -40 to +85 1 a channel on leakage current i nc(on) , i no(on) , i com(on) v + = 3.6v, v com = 0.3v, 3.3v, v no or v nc = 0.3v, 3.3v, or floating -40 to +85 1 a digital inputs input high voltage v inh -40 to +85 0.9 v input low voltage v inl -40 to +85 0.55 v input leakage current i in v + = 5.5v, v in = 0v or 3.6v -40 to +85 0.001 1 a dynamic characteristics turn-on time t on v no or v nc = 1.5v, v ih = 1.5v, v il = 0v r l = 300 ? , c l = 35pf, test circuit 2 +25 28 ns turn-off time t off v no or v nc = 1.5v, v ih = 1.5v, v il = 0v r l = 300 ? , c l = 35pf, test circuit 2 +25 22 ns break-before-make time delay t d v no1 or v nc1 = v no2 or v nc2 = 3v, r l = 300 ? , c l = 35pf, test circuit 3 +25 27 ns skew t skew r s = 39 ? , c l = 50pf, test circuit 4 +25 9 ns f = 10mhz +25 -40 db off isolation o iso r l = 50 ? , signal = 0dbm, c l = 5pf, test circuit 5 f = 1mhz +25 -60 db -3db bandwidth bw signal = 0dbm, r l = 50 ? , c l = 5pf, test circuit 6 +25 80 mhz source off capacitance c nc(off) , c no(off) f = 1mhz +25 20 pf channel on capacitance c nc(on) , c no(on) , c com(on) f = 1mhz +25 73 pf power requirements power supply range v + -40 to +85 1.8 5.5 v power supply current i + v + = +5.5v, v in = 0v or v + -40 to +85 0.001 3 a
spdt 1 ? analog switch 5 sgm4157 sg micro corp www.sg-micro.com typical performance characteristics on response vs. frequency -9 -6 -3 0 3 0.1 1 10 100 1000 frequency (mhz) on response (db) v + = +5v t a = +25 response vs. frequency -140 -120 -100 -80 -60 -40 -20 0 20 0.01 0.1 1 10 100 1000 fre quency(mhz) on response (db) v + = +5v t a = +25 off-isola tion on response vs. frequency -9 -6 -3 0 3 0.1 1 10 10 0 1000 frequency (mhz) on respon se (d b) v + = +3v t a = + 25 response vs. frequency -140 -120 -100 -80 -60 -40 -20 0 20 0.01 0.1 1 10 100 1000 frequency (m hz) on re sp onse (db ) v + = +3v t a = + 25 o ff-isolation
spdt 1 ? analog switch 6 sgm4157 sg micro corp www.sg-micro.com test circuits v1 10ma no or nc com v no or v nc r on = v1/10ma test circuit 1. on resistance v out no or nc com r l 300 v + gnd c l 35pf in 0.1 f v + v out v in 50% 90% 50% 90% t on t off v no or v nc test circuit 2. switching times v out no com v no or v nc r l 300 v + gnd c l 35pf in 0.1 f v + v out v in 50% 90% t d nc v no or v nc 0 test circuit 3. break-before-make time delay, t d
spdt 1 ? analog switch 7 sgm4157 sg micro corp www.sg-micro.com test circuits (cont.) no or nc com in c l r s out in sgm4157 rise time delay = | t inrise C t outrise | fall time delay = | t infall C t outfall | rise time to fall time mismatch = | t outfall C t outrise | v in v + 0v v out v + 0v 50% 50% t skew 90% 10% t infall 90% 10% t inrise 90% 10% t infall 90% 10% t inrise test circuit 4. output signal skew v out no com r l 50 v + gnd 0.1 f v + source signal in nc c l 5pf r l 50 test circuit 5. off isolation
spdt 1 ? analog switch 8 sgm4157 sg micro corp www.sg-micro.com test circuits (cont.) v out no or nc com v + gnd c l 5pf in 0.1f v + source signal test circuit 6. -3db bandwidth
spdt 1 ? analog switch 9 sgm4157 sg micro corp www.sg-micro.com package outline dimensions tdfn-22-6l top view bottom view side view d e b e1 d1 e k n3 n1 n6 a a2 a1 l 0.24 0.65 0.70 1.20 0.65 recommended land pattern (unit: mm) 2.60 dimensions in millimeters dimensions in inches symbol min max min max a 0.700 0.800 0.028 0.031 a1 0.000 0.050 0.000 0.002 a2 0.203 ref 0.008 ref d 1.900 2.100 0.075 0.083 d1 1.100 1.300 0.043 0.051 e 1.900 2.100 0.075 0.083 e1 0.600 0.800 0.024 0.031 k 0.200 min 0.008 min b 0.180 0.300 0.007 0.012 e 0.650 typ 0.026 typ l 0.250 0.450 0.010 0.018
spdt 1 ? analog switch 10 sgm4157 sg micro corp www.sg-micro.com tape and reel information note: the picture is only for reference. please make the object as the standard. key parameter list of tape and reel package type reel diameter reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p0 (mm) p1 (mm) p2 (mm) w (mm) pin1 quadrant tdfn-22-6l 7 9.5 2.30 2.30 1.10 4.00 4.00 2.00 8.00 q1 reel width (w1) reel diameter reel dimensions tape dimensions direction of feed p2 p0 w p1 a0 k0 b0 q1 q2 q4 q3 q3 q4 q2 q1 q3 q4 q2 q1
spdt 1 ? analog switch 11 sgm4157 sg micro corp www.sg-micro.com carton box dimensions note: the picture is only for reference. please make the object as the standard. key parameter list of carton box reel type length (mm) width (mm) height (mm) pizza/carton 7 (option) 368 227 224 8 7 442 410 224 18

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