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general description the max4815/max4816/MAX4817 high-bandwidth, low-on-resistance, quad-spst analog switches are designed to serve as integrated t1/e1 protection switches for 1+1 and n+1 line-card redundancy appli- cations. each max4815/max4816/MAX4817 replaces four electromechanical relays, significantly reducing board space, simplifying pc board routing, and reduc- ing power consumption. these devices operate with ?.3v or ?v dual supplies for applications requiring t1/e1 signal switching in the line side of the interface transformer. internal voltage multipliers drive the analog switches, yielding excellent linearity and low 3.7 typi- cal on-resistance within the t1/e1 analog signal range. this high-bandwidth (550mhz typical) family of prod- ucts is optimized for low return loss and matched pulse template performance in t1/e1 long-haul and short-haul applications. the max4815/max4816/MAX4817 are available in a tiny 16-pin, 5mm x 5mm, thin qfn package and are specified over the extended -40? to +85? tempera- ture range. applications t1/e1 redundancy switching base stations and base-station controllers add and drop multiplexers multiservice provisioning platforms edge routers multiservice switches (msss) digital loop carriers industrial applications data acquisition telecom signal switching test equipment avionics features ? quad-spst no, nc, and nc/no configurations ? dual-supply operation from ?.3v to ?v ? single-supply operation from +6v to +11v ? hot insertion tolerant with no dc path to the supplies ? low on-resistance, r on = 3.7 (typ) and 6 (max) ? over 550mhz, -3db signal bandwidth ? excellent crosstalk and off-isolation performance over the t1/e1 signal spectrum: 110db crosstalk attenuation at 1mhz ? low current consumption of 2ma (max) ? -40? to +85? extended temperature range ? space-saving, 16-pin, 5mm x 5mm thin qfn max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches ________________________________________________________________ maxim integrated products 1 19-3951; rev 2; 1/07 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. thin qfn (5mm x 5mm) *exposed paddle connected to v- com2 16 1234 12 11 10 9 15 14 13 5 6 7 8 com1 in1 in2 nc2 v+ n.c. nc3 v- gnd nc4 com4 in4 in3 com3 nc1 max4815 top view *ep + pin configurations ordering information part temp range pin-package configuration pkg code max4815 ete+ -40? to +85? 16 tqfn-ep* 4 x spst nc t1655-3 max4816 ete+ -40? to +85? 16 tqfn-ep* 4 x spst no t1655-3 MAX4817 ete+ -40? to +85? 16 tqfn-ep* 4 x spst nc/no t1655-3 * ep = exposed paddle. devices are available in lead-free packaging. pin configurations continued at end of data sheet. http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches 2 _______________________________________________________________________________________ absolute maximum ratings stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. (all voltages referenced to gnd unless otherwise noted.) v+ ............................................................................-0.3v to +6v v- .............................................................................-6v to +0.3v v+ to v-...................................................................-0.3v to +12v in_ ................................................................-0.3v to (v+ + 0.3v) no_, nc_, com_ ....................................................-12v to +12v no_ to com_, nc_ to com_ ..................................-18v to +18v continuous current (no_, nc_, com_) ....................... ?00ma continuous current (any other terminal) ..........................?0ma peak current (no_, nc_, com_) (pulsed at 1ms, 10% duty cycle).................................?00ma continuous power dissipation (t a = +70?) 16-pin thin qfn 5mm x 5mm (derate 33.3mw/? above +70?) .............................................................2667mw operating temperature range ......................... -40? to +85? storage temperature range ........................... -65? to +150? junction temperature .....................................................+150? lead temperature (soldering, 10s) ............................... +300? electrical characteristics?ual ?.3v supplies (v+ = +3.3v ?0%, v- = -3.3v ?0%, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units analog switch fault-free analog signal range v com_ v no_ v nc_ v- v+ v t a = +25? 3.7 5 on-resistance (note 2) r on v+ = +3v, v- = -3v, i com_ = 30ma, v no_ or v nc_ = +3v t a = t min to t max 6 t a = +25? 0.1 0.6 on-resistance match between channels (notes 2, 3) r on v+ = +3v, v- = -3v, i com_ = 30ma, v no_ or v nc_ = +3v t a = t min to t max 0.8 t a = +25? 0.4 1.2 on-resistance flatness (notes 2, 4) r flat ( on ) v+ = +3v, v- = -3v, i com_ = 30ma; v no_ or v nc_ = -3v, 0v, +3v t a = t min to t max 1.5 no or nc off-leakage current i no_ ( off ) i nc_ ( off ) v+ = +3.6v, v- = -3.6v; v com_ = -3v, +3v; v no_ or v nc_ = +3v, -3v -10 +10 na com off-leakage current i com_ ( off ) v+ = +3.6v, v- = -3.6v; v com_ = -3v, +3v; v no_ or v nc_ = +3v, -3v -10 +10 na com on-leakage current i com_ ( on ) v+ = +3.6v, v- = -3.6v; v com_ = -3v, +3v; no_ or nc_ unconnected -15 +15 na fault fault analog signal range v com_ v+ = +3.3v, v- = -3.3v -11 +11 v http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches _______________________________________________________________________________________ 3 electrical characteristics?ual ?.3v supplies (continued) (v+ = +3.3v ?0%, v- = -3.3v ?0%, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units no or nc off-leakage current i no_ i nc_ v + = + 3.3v , v - = - 3.3v ; v n o_ or v n c _ = + 11v , - 11v ; v com_ = -5.5v, +5.5v -1 +1 ? com off-leakage current i com_ v + = + 3.3v , v - = - 3.3v ; v c om _ = + 11v , - 11v ; v no_ or v nc_ = -5.5v, +5.5v -1 +1 ? switch dynamic characteristics v ct1 r l = 50 , f = 1.024mhz, figure 4 110 crosstalk (note 5) v ct2 r l = 50 , f = 30mhz, figure 4 77 db v iso1 v com_ to v no_ or v nc_ , r l = 50 , f = 1.024mhz, figure 4 60 off-isolation (note 6) v iso2 v com_ to v no_ or v nc_ , r l = 50 , f = 30mhz, figure 4 30 db on-channel -3db bandwidth bw r s = r l = 50 , figure 4 550 mhz com on-capacitance c on ( com_ ) f = 1mhz, figure 5 10 pf com off-capacitance c off ( com_ ) f = 1mhz, figure 5 7 pf nc/no off-capacitance c off f = 1mhz, figure 5 7 pf charge injection q c l = 1.0nf, v gen = 0, r gen = 0, figure 3 55 pc fault recovery time t rec v no_ , v nc_ , v com_ = -11v 128 ? t a = +25? 20 40 turn-on time t on v no_ or v nc_ = +3v, r l = 300 , c l = 35pf, figure 2 t a = t min to t max 40 ? t a = +25? 0.5 1 turn-off time t off v no_ or v nc_ = +3v, r l = 300 , c l = 35pf, figure 2 t a = t min to t max 1 ? power-up delay t del 128 ? logic input (in_) input-voltage low v il 0.8 v input-voltage high v ih 2.4 v input leakage current i in v in = 0 or v+ -1 +1 ? power supply quiescent positive supply current i+ v+ = +3.6v, v- = -3.6v, v in_ = 0 or v+ 0.8 2 ma quiescent negative supply current i- v+ = +3.6v, v- = -3.6v, v in_ = 0 or v+ 0.8 2 ma negative supply voltage v- -3.6 -3.0 v positive supply voltage v+ 3.0 3.6 v http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches 4 _______________________________________________________________________________________ electrical characteristics?ual ?v supplies (v+ = +5v ?0%, v- = -5v ?0%, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units analog switch fault-free analog signal range v com_ v no_ v nc_ v- v+ v t a = +25? 3.7 5 on-resistance (note 2) r on v+ = +4.5v, v- = -4.5v, i com_ = 30ma, v no_ or v nc_ = +3v t a = t min to t max 6 t a = +25? 0.1 0.6 on-resistance match between channels (notes 2, 3) r on v+ = +4.5v, v- = -4.5v, i com_ = 30ma, v no_ or v nc_ = +3v t a = t min to t max 0.8 t a = +25? 0.4 1.2 on-resistance flatness (notes 2, 4) r flat ( on ) v+ = +4.5v, v- = -4.5v, i com_ = 30ma; v no_ or v nc_ = -3v, 0v, +3v t a = t min to t max 1.5 no or nc off-leakage current i no_ ( off ) i nc_ ( off ) v+ = +5.5v, v- = -5.5v; v com_ = -5v, +5v; v no_ or v nc_ = +5v, -5v -10 +10 na com off-leakage current i com_ ( off ) v+ = +5.5v, v- = -5.5v; v com_ = -5v, +5v; v no_ or v nc_ = +5v, -5v -10 +10 na com on-leakage current i com_ ( on ) v+ = +5.5v, v- = -5.5v; v com_ = -5v, +5v; no_ or no_ unconnected -15 +15 na fault fault analog signal range v com_ v no_ v nc_ v+ = +5v, v- = -5v -11 +11 v no or nc off-leakage current i no_ i nc_ v+ = +5v, v- = -5v; v no_ or v nc_ = +11v, -11v; v com_ = -5.5v, +5.5v -1 +1 ? com off-leakage current i com_ v+ = +5v, v- = -5v; v com_ = +11v, -11v; v no_ or v nc_ = -5.5v, +5.5v -1 +1 ? switch dynamic characteristics v ct1 r l = 50 , f = 1.024mhz, figure 4 110 crosstalk (note 5) v ct2 r l = 50 , f = 30mhz, figure 4 77 db http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches _______________________________________________________________________________________ 5 electrical characteristics?ual ?v supplies (continued) (v+ = +5v ?0%, v- = -5v ?0%, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units v iso1 v com_ to v no_ or v nc_ , r l = 50 , f = 1.024mhz, figure 4 60 off-isolation (note 6) v iso2 v com_ to v no_ or v nc_ , r l = 50 , f = 30mhz, figure 4 30 db on-channel -3db bandwidth bw r s = r l = 50 , figure 4 550 mhz com on-capacitance c on ( com_ ) f = 1mhz, figure 5 10 pf com off-capacitance c off ( com_ ) f = 1mhz, figure 5 7 pf nc/no off-capacitance c off f = 1mhz, figure 5 7 pf charge injection q c l = 1.0nf, v gen = 0, r gen = 0, figure 3 55 pc fault recovery time t rec v no_ , v nc_ , v com_ = -11v 128 ? t a = +25? 20 40 turn-on time t on v no_ or v nc_ = +3v, r l = 300 , c l = 35pf, figure 2 t a = t min to t max 40 ? t a = +25? 0.5 1 turn-off time t off v no_ or v nc_ = +3v, r l = 300 , c l = 35pf, figure 2 t a = t min to t max 1 ? power-up delay t del 128 ? logic input (in_) input-voltage low v il 0.8 v input-voltage high v ih 2.4 v input leakage current i in v in = 0 or v+ -1 +1 ? power supply quiescent positive supply current i+ v+ = +5.5v, v- = -5.5v, v in_ = 0 or v+ 0.9 2 ma quiescent negative supply current i- v+ = +5.5v, v- = -5.5v, v in_ = 0 or v+ 0.9 2 ma negative supply voltage v- -5.5 -4.5 v positive supply voltage v+ 4.5 5.5 v note 1: all parameters are production tested at t a = +85? and guaranteed by design over specified temperature range. note 2: guaranteed by design, not production tested. note 3: r on = r on(max) - r on(min) . note 4: flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range. note 5: between any two switches. note 6: off-isolation = 20 x log 10 [v com_ /(v nc_ or v no_ )], v com_ = output, v nc_ or v no_ = input to off switch. http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches 6 _______________________________________________________________________________________ typical operating characteristics (v+ = +3.3v, v- = -3.3v, t a = +25?, unless otherwise noted.) 0 2 1 4 3 5 6 -3.3 -1.1 0 -2.2 1.1 2.2 3.3 on-resistance vs. com_ voltage max4815 toc01 com_ voltage (v) on-resistance ( ) t a = +85 c t a = +25 c t a = -40 c dual 3.3v supplies 0 2 1 4 3 5 6 -5 -1 -3 1 3 5 on-resistance vs. com_ voltage max4815 toc02 com_ voltage (v) on-resistance ( ) t a = +85 c t a = +25 c t a = -40 c dual 5v supplies supply current vs. supply voltage max4815 toc03 dual-supply voltage (v) supply current ( a) 5.0 4.5 4.0 3.5 700 800 900 1000 600 3.0 5.5 700 800 750 900 850 950 1000 -40 10 -15 35 60 85 supply current vs. temperature max4815 toc04 temperature ( c) supply current ( a) dual 5v supplies dual 3.3v supplies -40 240 200 160 120 80 40 0 320 280 400 360 440 480 520 nc/no(off) leakage current vs. temperature max4815 toc05 temperature ( c) leakage current (pa) -40 10 -15 35 60 85 dual 3.6v supplies nc_/no_ = +3v, com_ = -3v nc_/no_ = -3v, com_ = +3v -40 240 200 160 120 80 40 0 320 280 400 360 440 480 520 nc/no(off) leakage current vs. temperature max4815 toc06 temperature ( c) leakage current (pa) -40 10 -15 35 60 85 nc_/no_ = -5v, com_ = +5v nc_/no_ = +5v, com_ = -5v dual 5.5v supplies -40 80 40 0 120 160 200 240 280 320 360 -40 10 -15 35 60 85 com(off) leakage current vs. temperature max4815 toc07 temperature ( c) leakage current (pa) dual 3.6v supplies nc_/no_ = +3v, com_ = -3v nc_/no_ = -3v, com_ = +3v -40 80 40 0 120 160 200 240 280 320 360 -40 10 -15 35 60 85 com(off) leakage current vs. temperature max4815 toc08 temperature ( c) leakage current (pa) dual 5.5v supplies nc_/no_ = +5v, com_ = -5v nc_/no_ = -5v, com_ = +5v -60 120 60 0 180 240 300 360 420 480 540 -40 10 -15 35 60 85 com(on) leakage current vs. temperature max4815 toc09 temperature ( c) leakage current (pa) dual 3.6v supplies com_ = +3v com_ = -3v http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches _______________________________________________________________________________________ 7 typical operating characteristics (continued) (v+ = +3.3v, v- = -3.3v, t a = +25?, unless otherwise noted.) -60 120 60 0 180 240 300 360 420 480 540 -40 10 -15 35 60 85 com(on) leakage current vs. temperature max4815 toc10 temperature ( c) leakage current (pa) dual 5.5v supplies com_ = +5v com_ = -5v 0 40 20 80 60 120 100 140 -5 -1 -3 1 3 5 charge injection vs. common voltage max4815 toc11 v com_ (v) charge-injection (pc) crosstalk vs. frequency max4815 toc12 frequency (mhz) loss (db) 10 1 -100 -80 -60 -40 -120 0.1 100 frequency response max4815 toc13 frequency (mhz) loss (db) 100 10 1 -6 -5 -4 -3 -2 -1 0 -7 0.1 1000 off-isolation vs. frequency max4815 toc14 frequency (mhz) loss (db) 10 1 -80 -60 -40 -20 0 20 -100 0.1 100 -0.6 0 -0.3 0.6 0.3 0.9 1.2 -500 -100 100 -300 300 500 700 t1 (100 ) pulse template test max4815 toc15 time (ns) normalized amplitude 200ns/div t1 (100 ) scope shot of the input and output of device input 1v/div max4815 toc16 output 1v/div -0.3 0.1 -0.1 0.3 0.9 1.1 0.7 0.5 1.3 -250 -150 -100 -50 0 -200 50 100 150 200 250 e1 (120 ) pulse template test max4815 toc17 time (ns) normalized amplitude 100ns/div e1 (120 ) scope shot of the input and output of device input 1v/div max4815 toc18 output 1v/div http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches 8 _______________________________________________________________________________________ pin description pin max4815 max4816 MAX4817 name function 1 nc1 analog switch normally closed terminal 1 222 v- negative supply voltage. bypass v- to ground with a 0.1? ceramic capacitor. 3 3 3 gnd ground 4 nc4 analog switch normally closed terminal 4 5 5 5 com4 analog switch common terminal 4 6 6 6 in4 switch 4 logic-control input 7 7 7 in3 switch 3 logic-control input 8 8 8 com3 analog switch common terminal 3 9 9 nc3 analog switch normally closed terminal 3 10 10 10 n.c. no connection. not internally connected. 11 11 11 v+ positive supply voltage. bypass v+ to ground with a 0.1? ceramic capacitor. 12 12 nc2 analog switch normally closed terminal 2 13 13 13 com2 analog switch common terminal 2 14 14 14 in2 switch 2 logic-control input 15 15 15 in1 switch 1 logic-control input 16 16 16 com1 analog switch common terminal 1 1 1 no1 analog switch normally open terminal 1 4 4 no4 analog switch normally open terminal 4 9 no3 analog switch normally open terminal 3 12 no2 analog switch normally open terminal 2 ep ep ep ep exposed paddle. connect exposed paddle to v- or leave unconnected. typical operating characteristics (continued) (v+ = +3.3v, v- = -3.3v, t a = +25?, unless otherwise noted.) -0.3 0.1 -0.1 0.3 0.9 1.1 0.7 0.5 1.3 -250 -150 -100 -50 0 -200 50 100 150 200 250 e1 (75 ) pulse template test max4815 toc19 time (ns) normalized amplitude 100ns/div e1 (75 ) scope shot of the input and output of device input 1v/div max4815 toc20 output 1v/div http://www..net/ datasheet pdf - http://www..net/
detailed description the max4815/max4816/MAX4817 are high-bandwidth, low-on-resistance, quad-spst analog switches targeted to serve as integrated t1/e1 analog protection switches for 1+1 and n+1 line-card redundancy applications. these devices are designed to replace electromechani- cal relays to save board space, reduce power consump- tion, and simplify pc board routing. the devices allow the user to live insert the boards with no adverse effects. the max4815/max4816/MAX4817 support ?.3v or ?v dual-supply operation, which is required for e1/t1 signal switching in the line-side of the interface trans- former. internal voltage multipliers supply the switches yielding excellent linearity and low on-resistance, typi- cally 3.7 , within the e1/t1 analog signal range. this high-bandwidth, typically 550mhz, family of devices is optimized for low return loss and matched pulse tem- plate performance in e1/t1 short-haul and long-haul applications. analog signal levels the on-resistance of the max4815/max4816/MAX4817 is very low and stable as the analog signals are swept from v- to v+ (see the typical operating characteristics ). fault protection the fault protection of the max4815/max4816/ MAX4817 allows the devices to handle input signals of more than twice the supply voltage without clamping the signal, latching up, or disturbing other cards in the system. the device detects when the input voltage drops below the negative supply. as soon as a fault condition is detected, the switch is immediately turned off for 128 clock cycles (typically 128?). at the end of the 128? timeout, the switch is turned back on for one clock cycle. at the end of the one clock cycle, if the sig- nal is within the operating range, the switch will remain on. otherwise, the device will turn the switch off again for 128 clock cycles. this will repeat until the signal is within the operating range. in t1/e1 redundancy appli- cations, this can happen when the load resistor (r l ) is removed or disconnected for any reason, as shown in figure 1. without a load resistor, the output voltage when using a 1:2 transformer can be as high as ?1v. hot insertion the max4815/max4816/MAX4817 tolerate hot inser- tions, thus are not damaged when inserted into a live backplane. competing devices can exhibit low imped- ance when plugged into a live backplane that can cause high power dissipation leading to damage of the device itself. the max4815/max4816/MAX4817 have relatively high input impedance when v+ and v- are unconnected or connected to gnd. therefore, the devices are not destroyed by a hot insertion. in order to guarantee data integrity, the v+ and v- supplies must be properly biased. applications information t1/e1 n+1 redundancy the max4815/max4816/MAX4817 are designed for adjacent line-card protection applications. figures 6 and 7 show a basic architecture for twisted-pair interface (120 e1, or 100 t1). coaxial cable interface (75 e1) can be illustrated with the same figures but without the single-ended-to-differential conversion stage. a single protection card can replace up to n line cards in a n+1 redundancy scheme. figure 6 shows the max4815/ max4816/MAX4817 sitting in the line cards where they can reroute any of the input/output signals to a protection line card. figure 7 shows the max4815/max4816/ MAX4817 sitting in a protection-switching card where the switches are always powered. these figures do not show the surge protection elements and resistors for line termi- nation/impedance matching. the low on-resistance and high bandwidth of the max4815/max4816/MAX4817 yield good pulse tem- plate and return-loss performance (see the typical operating characteristics ). the pulse template tests for e1 (twisted pair interface 120 and coaxial interface 75 ) and t1 (twisted pair interface 100 ) were tested using the dallas ds2155 single-chip transceiver evalu- ation board, and twelve switches in parallel with one switch closed and the other eleven open. the internal transmit termination feature must be disabled when using this circuit. to use the same transmit resistors for e1 twisted pair and coaxial cables, the transmit line build out control register (tlbc) is set to the value 6ah. this sets the driver voltage so the output pulse has the right amplitude for both 120 (twisted pair) and 75 (coaxial) loads. the analog switches were powered with dual power supplies at ?v. max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches _______________________________________________________________________________________ 9 max4815 max4816 MAX4817 5v 10% liu tx tring ttip 10v 10% 1:2 + - vo r l nc_ com_ figure 1. fault protection http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches 10 ______________________________________________________________________________________ test circuits/timing diagrams 50% t on 3v 0v v in_ 0v 90% t off v in_ v+ gnd v+ no_ or nc_ com_ 3v r l c l v- v- 3v v out v out 90% max4815 max4816 MAX4817 in_ figure 2. switch turn-on/turn-off times v in_ v+ gnd v+ no_ or nc_ com_ c l v- v- v out in_ r gen v gen 0v 3v v out v in_ v out v out is the measured voltage due to charge- transfer error q when the channel turns off. q = v out x c l max4815 max4816 MAX4817 figure 3. charge injection v+ gnd v+ com_ no_, nc_ v- v- measurements are standardized against short and open at socket terminals. off-isolation is measured between com_ and off no_ or nc_ terminals. on-response is measured between com_ and on no_ or nc_ terminals. crosstalk is measured from one channel to all other channels. in_ 0.1 f 0.1 f v in v out network analyzer 50 50 50 50 meas ref 50 50 resistor only needed for crosstalk and isolation v+ max4815 max4816 MAX4817 figure 4. on-loss, off-isolation, and crosstalk http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches ______________________________________________________________________________________ 11 test circuits/timing diagrams (continued) v+ gnd v+ nc_ (or no_) com_ v- v- in_ v+ max4815 max4816 MAX4817 0.1 f 0.1 f 1mhz capacitance analyzer figure 5. channel off-/on-capacitance http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches 12 ______________________________________________________________________________________ t1/e1 liu tx/rx line card 1 line card 2 line card n i/o 1 i/o 2 i/o n protection line card single-ended-to- differential conversion backplane t1/e1 liu tx/rx t1/e1 liu tx/rx t1/e1 liu tx/rx max4815 max4816 MAX4817 max4815 max4816 MAX4817 max4815 max4816 MAX4817 max4815 max4816 MAX4817 figure 6. adjacent line-card protection architecture with switches in the line cards for twisted pair cable (120 e1, or 100 t1). figure for coaxial cable (75 e1) is the same without the single-ended-to-differential conversion. http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches ______________________________________________________________________________________ 13 t1/e1 liu tx/rx line card 1 line card 2 line card n i/o 1 i/o 2 i/o n protection line card single-ended-to- differential conversion protection switching card t1/e1 liu tx/rx t1/e1 liu tx/rx t1/e1 liu tx/rx max4815 max4816 MAX4817 max4815 max4816 MAX4817 max4815 max4816 MAX4817 max4815 max4816 MAX4817 figure 7. adjacent line-card protection architecture with switches out of the line cards for twisted pair cable (120 e1, or 100 t1). figure for coaxial cable (75 e1) is the same without the single-ended-to-differential conversion. http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches 14 ______________________________________________________________________________________ chip information process: bicmos connect exposed paddle to v-. thin qfn (5mm x 5mm) *exposed paddle connected to v- com2 16 1234 12 11 10 9 15 14 13 5 6 7 8 com1 in1 in2 no2 v+ n.c. no3 v- gnd no4 com4 in4 in3 com3 no1 max4816 top view *ep + thin qfn (5mm x 5mm) *exposed paddle connected to v- com2 16 1234 12 11 10 9 15 14 13 5 6 7 8 com1 in1 in2 nc2 v+ n.c. nc3 v- gnd no4 com4 in4 in3 com3 no1 MAX4817 top view *ep + pin configurations (continued) http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches ______________________________________________________________________________________ 15 line card 1 t1/e1 liu tx t1/e1 liu rx no4 no3 com2 in3 transmit receive protection line card t1/e1 liu rx z l z l z l z l z l z l z l = 75 , 100 , or 120 line card 2 line card n . . . . . . no2 no1 com1 in1 . . . t1/e1 liu rx max4816 in2 com3 in4 com4 no1 com1 in1 in4 com4 max4816 no4 . . . . . . . . . typical operating circuit http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches 16 ______________________________________________________________________________________ in1 in4 com1 nc1 v- gnd nc4 com4 in2 in3 com2 nc2 v+ nc3 com3 max4815 in1 in4 com1 no1 v- gnd no4 com4 in2 in3 com2 no2 v+ no3 com3 max4816 in1 in4 com1 no1 v- gnd no4 com4 in2 in3 com2 nc2 v+ nc3 com3 MAX4817 in_ nc_ 0on 1 off in_ no_ 0 off 1on in_ nc_ 0on 1 off off on no_ functional diagram http://www..net/ datasheet pdf - http://www..net/
max4815/max4816/MAX4817 high-bandwidth, t1/e1, spst analog switches maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ____________________ 17 2007 maxim integrated products is a registered trademark of maxim integrated products, inc. boblet package information (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .) qfn thin.eps revision history pages changed at rev 2: 1, 9, 17 http://www..net/ datasheet pdf - http://www..net/

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