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may 2017 ? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 ? rev. 1.3 .2 fsa 4476 usb type - c analog audio switch with protection function FSA4476 usb type - c analog audio switch with protection function features ? power management primary power supply: vbat, 2.7 v to 5.5 v second power supply vbus, 4.0 v to 20 v ? usb high speed(480mbps) switch: - 3db bandwidth: 1 ghz 3 ? r o n typical ? audio switch negative rail capability: - 3v to +3v thd+n = - 110 db; 1 v rms , f = 20hz ~20 khz , 3 2 ? load ; 0.6 ? r on typical ? high voltage protection 20v dc protection on cc port and sbu port 16v dc protection on dp / r and d n/ l port ? over voltage protection: 5.8v (typ) on cc port 4.5v (typ) on sbu port 4.5v (typ) on dp / r and d n/ l port ? omtp and ctia pinout support ? support audio sense path ? support dead battery ? 25 - ball wlcsp package (2. 03 mm x 2. 03 mm) applications ? mobile phone , tablet, notebook pc, media player description FSA4476 is a high performance usb type - c port multimedia switch which supports analog audio headsets. FSA4476 allows the sharing of a common usb type - c port to pass usb2.0 signal, analog audio, sideband use wires and analog microphone signal. FSA4476 also supports high voltage on cc port, sbu port and usb port on usb type - c receptacle side. in addition, FSA4476 supports usb type - c dead battery application and dual power supply with vbat rail and vbus rail . figure 1. application block diagram ordering information part number top mark package description FSA4476 ucx gr 25 ball wlcsp a u d i o c o d e c f s a 4 4 7 6 l d n r d p d n / l d p / r s b u 2 s b u 1 m i c g n d _ m d p d n s b u 1 v b u s s s r x n 2 s s r x p 2 g n d g n d s s t x p 1 v b u s c c 1 s s t x n 1 d n d p c c 2 v b u s s s t x n 2 s s t x p 2 g n d g n d s s r x p 1 v b u s s b u 2 s s r x n 1 u s b t y p e - c r e c e p t a c l e h p l h p r m i c s b u 2 _ h s b u 1 _ h a p d n d p s b u 2 s b u 1 v b a t e n 2 g p i o 2 e n c t l i n t 1 i n t 1 c c 2 c c 1 s e n s e c c l o g i c c c 1 c c 2 c c 1 _ h c c 2 _ h v b u s e n 1 g p i o 1 g n d i n t i n t
? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 rev . 1.3.2 2 fsa 4476 usb type - c analog audio switch with protection function pin configuration figure 2. pin assignment (top through view) pin descriptions name ball description vbus a1 power supply vbat a2 power supply gnd d1 ground dp/r d5 usb positive data/right audio common line dn/l c5 usb negative data/left audio common line dp e4 positive data line for usb signals dn e5 negative data line for usb signals l c4 left line for audio signals r d4 right line for audio signals sbu1 e 2 sideband use wire 1 common line sbu2 e 1 sideband use wire 2 common line mic d2 microphone, connects to microphone pre - amplifier gnd_m c1 sense pin to detect gnd offset sbu1_h b2 host side sideband use wire 1 a b c d 1 2 3 4 d n c c 1 _ h c c 2 _ h e n n l i n t 1 d n / l d p / r e n 1 r m i c g n d _ m i n t s b u 2 _ h s b u 1 _ h g n d v b u s v b a t 5 e n 2 c c 1 c c 2 s b u 1 s b u 2 d p e n c
? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 rev . 1.3.2 3 fsa 4476 usb type - c analog audio switch with protection function name ball description sbu2_h b1 host side sideband use wire 2 cc1 b5 configuration channel 1 cc2 b4 configuration channel 2 cc1_h a5 host side configuration channel 1 cc2_h a4 host side configuration channel 2 int a3 ovp and otp interrupt output, active low (open drain) int1 c2 interrupt output signal; during en1=1, int1 is low active (open drain output) when cc1_h <1.2v and cc2_h<1.2v. enn c3 chip enable, active low, internal pull - down by 1mohm. en1 d3 logic configuration input 1 en2 e3 logic configuration input 2 nc b3 no connect truth table power enn en1,en2 cc switch headset detection usb switch audio switch mic sw / gnd_m sw sbu b y pass switch off x xx dead battery off off off off off on h xx off off off off off off on l 00 on off on: dp/ r to dp dn/ l to dn off off on: sbu1 to sbu1_h sbu2 to sbu2_h on l 01 on off on: dp/ r to dp dn / l to dn off off on: sbu1 to sbu2_h sbu2 to sbu1_h on l 10 on on off on: dp/ r to r dn / l to l on: sbu1 to mic sbu2 to gnd_m sbu2 to gnd off on l 11 on on off on: dp/ r to r dn / l to l on: sbu2 to mic sbu1 to gnd_m sbu1 to gnd off
? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 rev . 1.3.2 4 fsa 4476 usb type - c analog audio switch with protection function absolute maximum ratings stresses exceeding the absolute maximum ratings may damage the device. the device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. in addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. the absolute maximum ratings are str ess ratings only. symbol parameter min. max. unit v bat supply voltage from v bat - 0.5 6.5 v vbus supply voltage from vbus - 0.5 28 v v vi cc v ccx, to gnd - 0.5 20 v v v cc _h v ccx_h, to gnd - 0.5 6.5 v v sw_usb/audio v dp_ r to gnd, v dn_l to gnd - 3.5 16 v v sw_usb v dp to gnd, v dn to gnd - 0.5 6.5 v v sw_audio v l to gnd, v r to gnd, - 3.5 +3.5 v v vs bu v sbu1 to gnd, v sbu2 to gnd, - 0.5 20 v v vsbu_h v sbu1_h to gnd, v sbu2_h to gnd, - 0.5 6.5 v v i/o mic,gnd_m, int ,int1 to gnd, - 0.5 6.5 v v c ntrl control input voltage enn,enx - 0.5 6.5 v i ccsw cc switch current 1.25 a i sw _audio switch i/o current , audio path, - 250 250 ma i sw _usb switch i/o current , usb path, 100 ma i sw_mic switch i/o current , mic to sbu1 or sbu2 50 ma i sw_gnd_m switch i/o current , gnd_m to sbu1 or sbu2 100 ma i sw_gnd switch i/o current , gnd to sbu1 or sbu2 500 m a i ik dc input diode current - 50 ma esd human body model, ansi/esda/ jedec js - 001 - 2012 connector side and power pins: vbus, v bat , cc1, cc2, sbu1, sbu2, dp/r, dn/l 4 kv host side pins: the rest pins 2 charged device model, jedec: jesd22 - c101 1 t a absolute maximum operating temperature - 40 +85 c t stg storage temperature - 65 +150 c recommended operating conditions the recommended operating conditions table defines the conditions for actual device operation. recommended operating conditions are specified to ensure optimal performance. onsemi does not recommend exceeding them or designing to absolute maximum ratings. symbol parameter min. typ. max. unit power v bat supply voltage 2.7 5.5 v vbus supply voltage 4.0 20 v usb switch v sw_usb v dp to gnd, v dn to gnd, v dp/ r to gnd, v dn/ l to gnd 0 4.0 v audio switch v sw_audio v dp/ r to gnd, v dn/ l to gnd, v l to gnd, v r to gnd - 3 +3 v
? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 rev . 1.3.2 5 fsa 4476 usb type - c analog audio switch with protection function symbol parameter min. typ. max. unit v sw_mic mic to gnd 0 3.6 v sbu switch v vs bu v sbu1 to gnd, v sbu2 to gnd, v sbu1_h to gnd, v sbu2_h to gnd, 0 4.0 v cc switch v vi cc v ccx, to gnd 0 5.5 v v v cc _h v ccx_h, to gnd 0 5.5 v i ccsw cc switch current 1.25 a control voltage(enn,enx) v ih input voltage high 1.3 v v il input voltage low 0.5 v operating temperature t a ambient operating temperature - 40 25 +85 c
? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 rev . 1.3.2 6 fsa 4476 usb type - c analog audio switch with protection function dc characteristics v bat = 2.7 v to 5.5 v or vbus= 4.0v to 20v, v bat ( t yp . ) = 4.3 v or vbus ( t yp . ) = 5v, t a = - 40c to 85c , and t a ( t yp . ) = 25 c , unless otherwise specified . (1) symbol parameter condition power t a = - 40c to +85c unit min. typ. max. i cc vbat supply current v bat =4.3v 25 a i ccz quiescent current v bat =4.3v 5 a usb/audio common pins i oz off leakage current of port dp / r and dn / l dn / l,dp / r= - 3v to 4.0v v bat : 2.7v to 5.5 v or vbus: 4v to 20v - 3.0 3.0 a i off power - off leakage current of port dp / r and dn / l dn / l,dp / r=0 v to 4.0v power off - 3 .0 3 .0 a v ov_trip input ovp lockout rising edge v bat : 2.7v to 5.5 v or vbus: 4v to 20v 4.2 4.5 4.8 v v ov_hys input ovp hysteresis 0.3 v audio swit ch i on on leakage current of audio switch dn / l,dp / r= - 3v to 3.0v, dp,dn,r,l = float v bat : 2.7v to 5.5 v or vbus: 4v to 20v - 2 .0 0.1 2 .0 a i off power - off leakage curren t on l and r l, r,= 0v to 3 v power off - 1.0 1.0 a r on switch on resistance i sw = 100 ma, v sw = - 3 v to 3 v v bat : 2.7v to 5.5 v or vbus: 4v to 20v 0.6 ? r shunt pull down resistor on r/l pin when audio switch is off l=r= 3 v 6 10 14 k? usb switch i on on leakage current of usb switch dn / l,dp / r= 0 v to 4.0v, dp,dn,r,l = float v bat : 2.7v to 5.5 v or vbus: 4v to 20v - 3 .0 1.0 3 .0 a i oz off leakage current of port dp and dn dn,dp =0v to 4.0v - 3 .0 3 .0 a i off power - off leakage curren t on dp and dn dn,dp =0v to 4.0v power off - 3 .0 3 .0 a r on_usb usb switch on resistance i sw = 8 ma, v sw = 0.4v v bat : 2.7v to 5.5 v or vbus: 4v to 20v 3 ? cc switch i on on leakage current of cc switch vsw from 0v to 3.6v, v bat : 2.7v to 5.5 v or vbus: 4v to 20v - 3.0 3.0 a r on cc path on resistance i out =200ma, v sw =5v 300 m? v ov_trip input ovp lockout rising edge 5.6 5.8 6 .1 v v ov_hys input ovp hysteresis 0.3 v r d dead battery pull down resistance 350ua on ccx pin vbat<2. 4v and vbus < 3.5v 4.08 5.1 6.12 k ?
? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 rev . 1.3.2 7 fsa 4476 usb type - c analog audio switch with protection function symbol parameter condition power t a = - 40c to +85c unit min. typ. max. v thr_h ccx_h high threshold under headset detection en1=h v bat : 2.7v to 5.5 v or vbus: 4v to 20v 1.5 v v thr_l ccx_h lowthreshold under headset detection en1=h 1.2 v sbu common pins i oz off leakage current of port sbux sbux= 0v to 4v v bat : 2.7v to 5.5 v or vbus: 4v to 20v - 3.0 3.0 a i off power - off leakage current of port sbux sbux= 0v to 4v power off - 3.0 3.0 a v ov_trip input ovp lockout rising edge v bat : 2.7v to 5.5 v or vbus: 4v to 20v 4.2 4.5 4.8 v v ov_hys input ovp hysteresis 0.3 v mic switch i on on leakage current of mic switch sbux= 0v to 3.6v, mic is floating v bat : 2.7v to 5.5 v or vbus: 4v to 20v - 3.0 3.0 a i oz off l eakage current on mic mic=0v to 3.6v - 1.0 1.0 a i off power off l eakage current on mic mic=0v to 3.6v power off - 1.0 1.0 a r on mic switch on resistance mic=0v to 3.6v, isw=30ma v bat : 2.7v to 5.5 v or vbus: 4v to 20v 2 gnd_m switch i oz off l eakage on gnd_m gnd_m=0v to 3.6v v bat : 2.7v to 5.5 v or vbus: 4v to 20v - 2.0 2.0 a i off power off l eakage current on gnd_m gnd_m =0v to 3.6v power off - 1.0 1.0 a r on gnd_m switch on resistance isw=30ma v bat : 2.7v to 5.5 v or vbus: 4v to 20v 0.5 sbu bypass switch i on on leakage current of sbu bypass switch sbux= 0v to 4v, sbux_h is floating v bat : 2.7v to 5.5 v or vbus: 4v to 20v - 3.0 3.0 a i oz off l eakage current on sbux_h sbux_h = 0v to 4v - 1.0 1.0 a r on sbu bypass switch on resistance sbux =0v to 3.6v, isw=50ma 3 internal gnd switch r on internal gnd switch on resistance isw=200ma v bat : 2.7v to 5.5 v or vbus: 4v to 20v 75 110 [ 2 ] m? note s : 1. limits over the recommended temperature operating range (t a = - 40 c to +85 c ) are correlated by statistical quality . 2. guaranteed by characterization, not production tested
? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 rev . 1.3.2 8 fsa 4476 usb type - c analog audio switch with protection function ac characteristics v bat = 2.7 v to 5.5 v or vbus= 4.0v to 20v, v bat ( t yp . ) = 4.3 v or vbus ( t yp . ) = 5v, t a = - 40c to 85c. t a ( t yp . ) = 25 c , unless otherwise specified . symbol parameter condition power t a = - 40c to +85c unit min. typ. max. audio switch t on turn on time (3) dp/r = dn/l = 1.5 v , r l =50? off turn off time (3) dp/r = dn/l = 1.5 v, r l =50? talk cross talk (adjacent) (3) f = 1 khz, r l = 50 ?, v sw = 1 v rms - 110 db bw - 3 db bandwidth (3) r l = 50 ? irr off isolation (3) f= 1 khz, r l = 50 , c l = 0 pf, v sw =1 v rms - 100 db thd+n total harmonic distortion + noise performance wi t h a - weight ing filter (3) r l =600 ?, sw = 2 v rms - 110 db r l = 32 ?, sw = 1 v rms - 110 db r l = 16 ?, sw = 0.5 v rms - 108 db usb switch t on turn - on time (3) dp/r = dn/l = 1.5 v, r l =50? off turn - off time (3) dp/r = dn/l = 1.5 v, r l =50? (3) r l =50 irr off isolation (3) between dp, dn and common node pins f= 1 khz, r l = 50 l = 0 pf, v sw =1 v rms - 100 db t ovp dp/r and dn/l pins ovp response time (3) r l = 50 ? cc switch t on turn - on time (3) v icc x = 5v, r l = 5k ? off turn - off time (3) v icc x = 5v, r l = 5k ? (3) r l =50 ovp ccx pins ovp response time (3) r l = 25 ? l =200pf, v sw : 4v to 7v 0.6 1 s sbux bypass switch t ovp sbux pins ovp response time (3) r l = 50 ?
? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 rev . 1.3.2 9 fsa 4476 usb type - c analog audio switch with protection function symbol parameter condition power t a = - 40c to +85c unit min. typ. max. t on turn - on time (3) isw on sbux=1ma and clamp to 2v, r l on mic and sbux_h =1k , gnd_m=100mv, series 50 on gnd_m pin v bat: 4.3v or vbus: 5v 12 s t off turn - off time (3) 1 bw bandwidth (3) r l =50 25 mhz mic/gnd_m/internal gnd switch t on _mic turn - on time (3) isw on sbux=1ma and clamp to 2v, r l on mic and sbux_h =1k , gnd_m=100mv, series 50 on gnd_m pin v bat: 4.3v or vbus: 5v 10 s t on _gnd_m 60 t on _gnd 950 t off _mic turn - off time (3) 1 t off _gnd_m 1 t off _gnd 1 bw mic switch bandwidth (3) r l =50 25 mhz interrupt delay t delay_int int response delay (3) int pull up by 10k resistor to valid power v bat: 4.3v or vbus: 5v 5 s t delay_int 1 int1 response delay (3) int1 pull up by 10k resistor to valid power 5 3. guaranteed by characterization, not production tested capacitance unless otherwise stated v bat = 2.7 v to 5.5 v or vbus= 4.0v to 20v, v bat ( t yp . ) = 4.3 v or vbus ( t yp . ) = 5v, t a = - 40c to 85c, and t a ( t yp . ) = 25 c. symbol parameter condition power t a = - 40 c to +85 c unit min. typ. max. c on _usb/audio on capacitance (common port) (4) f = 1 mhz, 100 mv pk - pk , 100 mv dc bias vbat: 4.3v or vbus: 5v 7 pf c o ff_ usb/audio off capacitance (common port) (4) f = 1 mhz, 100 mv pk - pk , 100 mv dc bias 7 pf c o ff_usb off capacitance (non - common ports) (4) f = 1 mhz, 100 mv pk - pk , 100 mv dc bias figure 12 2 pf c off_sbux_h off capacitance (non - common ports) (4) f = 1 mhz , 100 mv p k - p k , 100 mv dc bias, 12 pf c off_sbux off capacitance (common ports) (4) f = 1 mhz , 100 mv p k - p k , 100 mv dc bias, 140 pf c on _sbux on capacitance (common port) (4) f = 1 mhz , 100 mv p k - p k , 100 mv dc bias, 150 pf c cntrl control input pin capacitance (enx) (4) f = 1 mhz , 100 mv pp , 100 mv dc bias enx,enn 6 pf 4. guaranteed by characterization, not production tested
? 20 1 6 semiconductor components industries, llc www. on semi.com FSA4476 rev . 1.3.2 10 fsa 4476 usb type - c analog audio switch with protection function application information dead battery fsa44776 supports dead battery application. when power is not applied to FSA4476 and it is attached to a source device, then the source would pull up the cc line connected through the cable. FSA4476 in response would turn on the pull - down that will bring the cc voltage to a range that the source can det ect an attach event and turn on vbus. headset detection FSA4476 integrates headset unplug detection function by detecting the ccx_h voltage. the headset detection is only active during audio switch on status (en1=1) . when headset is attached ( both cc1 _h and cc2_h are low) , the flag signal is sent low to host controller by int1 (int1= low) . once either of ccx_h= high (ccx_h>1.5v) , int1 will be released to high by external pull up resistor. power supply configuration vbus vbat power supply invalid invalid max (vbat , vbus) valid invalid vbus invalid valid vbat valid valid vbat
? ? 20 1 6 semiconductor components industries, llc www.onsemi.com FSA4476 ? rev. 1.3.2 11 fsa 4476 usb type - c analog audio switch with protection function test diagrams figure 3. on resistance figure 4. off leakage (ioz) figure 5. on leakage figure 6. power off leakage (ioff) figure 7. test circuit load figure 8. turn on/off waveforms figure 9. bandwidth figure 10. channel off isolation s e l e c t v s e l = 0 o r v d d i s w v o n r o n = v o n / i s w g n d v s w g n d * * e a c h s w i t c h p o r t i s t e s t e d s e p a r a t e l y s e l e c t v s e l = 0 o r v d d f l o a t a i n o v s w g n d s e l e c t v s e l = 0 o r v d d f l o a t i o n v s w g n d a * * e a c h s w i t c h p o r t i s t e s t e d s e p a r a t e l y s e l e c t v b a t f l o a t a i n o v s w g n d = v b u s = 0 v r l c l g n d g n d r s v s e l v s w g n d v o u t r l a n d c l a r e f u n c t i o n o f a p p l i c a t i o n e n v i r o n m e n t ( s e e a c / d c t a b l e s ) c l i n c l u d e s t e s t f i x t u r e a n d s t r a y c a p a c i t a n c e e n x v i / o i n 9 0 % 9 0 % 9 0 % 1 0 % 1 0 % 1 0 % v i / o o u t h = 3 . 3 v l = 0 v t o n t o n t o f f t o f f h = 3 . 3 v l = 0 v v o u t g n d g n d r t g n d g n d v s r s n e t w o r k a n a l y z e r v s e l g n d r l a n d c l a r e f u n c t i o n o f a p p l i c a t i o n e n v i r o n m e n t ( s e e a c / d c t a b l e s ) c l i n c l u d e s t e s t f i x t u r e a n d s t r a y c a p a c i t a n c e v i n v o u t g n d g n d r t g n d g n d v s r s n e t w o r k a n a l y z e r r t g n d r s a n d r t a r e f u n c t i o n o f a p p l i c a t i o n e n v i r o n m e n t ( s e e a c / d c t a b l e s ) v c n t r l g n d o f f - i s o l a t i o n = 2 0 l o g ( v o u t / v i n )
? ? 20 1 6 semiconductor components industries, llc www.onsemi.com FSA4476 ? rev. 1.3.2 12 fsa 4476 usb type - c analog audio switch with protection function figure 11. adjacent channel crosstalk figure 12. channel off capacitance figure 13. channel on capacitance figure 14. total harmonic distortion (thd+n) v o u t g n d g n d r t g n d g n d v s r s n e t w o r k a n a l y z e r r t g n d r s a n d r t a r e f u n c t i o n o f a p p l i c a t i o n e n v i r o n m e n t ( s e e a c / d c t a b l e s ) g n d c r o s s t a l k = 2 0 l o g ( v o u t / v i n ) v i n v s e l v s e l = 0 o r v d d c a p a c i t a n c e m e t e r f = 1 m h z v s e l = 0 o r v d d c a p a c i t a n c e m e t e r f = 1 m h z v o u t g n d g n d r t g n d g n d v s r s n e t w o r k a n a l y z e r v s e l g n d r l a n d c l a r e f u n c t i o n o f a p p l i c a t i o n e n v i r o n m e n t ( s e e a c / d c t a b l e s ) c l i n c l u d e s t e s t f i x t u r e a n d s t r a y c a p a c i t a n c e v i n
? ? 20 1 6 semiconductor components industries, llc www.onsemi.com FSA4476 ? rev. 1.3.2 13 fsa 4476 usb type - c analog audio switch with protection function physical dimensions figure 15. 25 - ball wlcsp recommended mounting footprint (nsmd pad type) asme y14.5m, 2009. notes: 2. controlling dimension: millimeters 1. dimensioning and tolerancing per bottom view side view top view a dim min. nom. millimeters max. 0.625 0.228 0.188 a1 0.208 2.030 a2 0.26 0.24 0.28 b d e 0.40 bsc e 0.586 0.547 2.000 2.060 3. datum c applies to the spherical crown of the solder balls detail a a1 a2 0.396 0.360 0.378 ball a1 index area 2.030 0.03 c 2x 0.03 c e d b 2x a 1 2 3 4 5 a b c d e 25x 0.005 c a b ? b e e seating plane 0.05 c d c a 2.000 2.060 4. drawing file name: uc025adrevo a1 0.40 1.60 0.40 1.60 (?0.215)bottom of cu pad (?0.315) solder mask opening
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