View FSA806_5458959.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

july 2012 ? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability FSA806 ? usb2.0 high-speed (480mbps), uart, and audio switch with negative signal capability features ? 3:1 switch handles: - audio headsets - uart - up to two high- and low-speed usb data ? negative-swing-capable audio channel ? built-in termination resistors for audio pop reduction ? simple switch control using two select pins applications ? cell phones, mp3 players, pdas description the FSA806 is a 3:1 usb accessory switch that enables usb data, stereo and mono audio, and uart data to share a common connector port. two ports are designed for high-speed usb 2.0 signaling, while also capable of full speed usb and uart communication. the architecture is designed to allow audio signals to swing below ground so a common usb and headphone jack can be used for personal media players and portable peripheral devices. the FSA806 meets both usb rev. 2.0 and micro-usb specifications. ordering information part number operating temperature range top mark package FSA806umx -40 to +85c kn 12-lead quad, 1.8 x 1.8 mm ultrathin molded leadless package (umlp) figure 1. functional block diagram dp_co gn dm_co dp_host dm_hos r_hos l_hos dp_host dm_host vcc sel[0 sel[1 FSA806 3: 1 mux and c ha r ge pump switc contro r
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 2 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability application diagram figure 2. typical application functional description the FSA806 usb2.0 accessory switch is designed to consolidate wired accessories for portable devices, such as cellular telephones and portable audio players. the benefits of consolidati on include reduced space requirements from a reducti on of connectors and their size. the micro-usb connector, for example, reduces connector height and depth, allowing for slimmer overall designs. using the usb industry standard and a common connector type, for accessories such as chargers and headsets, greatly r educes the waste associated with new phone purchases by allowing re-use of the accessories. using just five wires for all connection types considerably reduces the cost of wired accessories and simplifies their constructi on. the FSA806 facilitates adopting this methodology bec ause it is designed to redirect the dp/dm pins from the usb connector to one of three ports at t he baseband?s discretion. applications with multiple usb controllers when operating with two usb controllers, it is recommended to configure the switches to open before switching to the other (s econd) usb interface. the open setting duration should be long enough for the accessory to go to a se0 state, when the switch is set to the other (second) usb por t, the new controller re- enumerates. v bu id dp_con gnd dm_con dp_host1 dm_host1 hs usb / fs usb audio codec r_host l_hos t dp_host2 dm_host2 vcc sel[0] sel[1] baseband processo r FSA806 3:1 mux and cha r ge pump switch control r mini/micro us hs usb / fs usb
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 3 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability mode descriptions the FSA806 select pins control the switching operations, sel[0] and sel[1] described in table 1 table 1. selection truth table sel[1] sel[0] switch action description 0 0 open open all switch paths (device in low-power mode) 0 1 usb1, uart closes usb1 path to d+/d-, default condition (1) - dp_con connected to dp_host1 - dm_con connected to dm_host1 1 0 usb2, uart closes usb2 path to d+/d- - dp_con connected to dp_host2 - dm_con connected to dm_host2 1 1 audio closes audio path to d+/d- only - dp_con connected to r_host - dm_con connected to l_host notes: 1. the select pins are cmos inputs and should not be left in a floating condition. some applications require a uart path be in the closed position on power-up for initial programming of the device under test. if that condition is desired, the two select pins should be pulled to the correct levels with external resistors that should exceed 100k to reduce the static power consumption. in other app lications, adding weak pull-down resistors to gnd defaults the device to all paths open (low-power mode). 2. when the audio switch is in the open position, the r and l are terminat ed to gnd with internal termination resistors to discharge any stray capac itance that could cause audio pop.
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 4 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability pin configuration figure 3. 12-pin, umlp pin assignments (top-through view) pin descriptions name pin # description usb, uart interface dp_host1 3 d+ signal, dedicated usb port to be connected to the resident usb or uart transceiver on the phone. dm_host1 4 d- signal, dedicated usb port to be connected to the resident usb or uart transceiver on the phone. dp_host2 5 d+ signal, dedicated usb port to be connected to the resident usb or uart transceiver on the phone. dm_host2 6 d- signal, dedicated usb port to be connected to the resident usb or uart transceiver on the phone. audio interface r_host 7 right audio channel from phone audio codec. l_host 8 left audio channel from phone audio codec. power interface v cc 2 input voltage supply pin to be connected to the phone battery output. connector interface gnd 9 ground dp_con 11 connected to the usb connector d+ pin; depending on the FSA806 signaling mode, this pin can share dp_host1, dp_host2 or r_host signals. dm_con 10 connected to the usb connector d- pin; depending on the FSA806 signaling mode, this pin can share dm_host1, dm_host2 or l_host signals. switch control sel[1:0] 12, 1 switch selection pins; refer to table 1 for truth table.
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 5 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability absolute maximum ratings stresses exceeding the absolute maximum ratings may damage the device. the devic e may not function or be operable above the recommended operating c onditions and stressing the parts to these levels is not recommended. in addition, extended exposure to stre sses above the recommended operating conditi ons may affect device reliability. the absolute maximum ratings are stress ratings only. symbol parameter min. max. unit v cc supply voltage from battery / baseband -0.5 6.0 v v sw switch i/o voltage usb -0.5 v bus +0.5 v stereo/mono audio path active vcc-8.5 v cc +0.5 all other channels -0.5 v cc +0.5 i ik input clamp diode current -50 ma i sw switch i/o current (continuous) usb 50 ma audio 60 all other channels 50 i swpeak peak switch current (pulsed at 1ms duration, <10% duty cycle) usb 150 ma audio 150 ma all other channels 150 ma t stg storage temperature range -65 +150 c t j maximum junction temperature +150 c t l lead temperature (solder ing, 10 seconds) +260 c esd iec 61000-4-2 system usb connector pins (d+, d-, v bus ) air gap 15 kv contact 8 human body model, jedec jesd22-a114 all pins 3 charged device model, jedec jesd22-c101 all pins 2 recommended operating conditions the recommended operating conditions table defines the conditions for actual device oper ation. recommended operating conditions are specified to ens ure optimal performance to the datasheet specificat ions. fairchild does not recommend exceeding them or designing to absolute maximum ratings. symbol parameter min. max. unit v cc battery supply voltage 2.7 4.4 v v sw switch i/o voltage usb/uart path active 0 4.4 v audio path active v cc -7 2.0 v t a operating temper ature -40 +85 oc
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 6 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability switch path dc electrical characteristics all typical values are at 25o c unless otherwise specified. symbol parameter v cc (v) conditions t a = -40 to +85c unit min. typ. max. host interface pins (sel[2:0]) v ih input high voltage 3. 2 to 4.4 1.3 v v il input low voltage 3.2 to 4.4 0.7 v i in control input leakage 0 to 4.4 v sw =0 to v cc -1 1 a i oz off-state leakage 4.4 0 dp_con, dm_con, dp_hostn, dm_hostn, r_host, l_host 3.6v -2 2 a switch off characteristics i off power-off leakage current 0 all ports except mic & audio path v sw =0v to 4.4v, figure 8 10 a usb switch on paths r onusb hs usb range switch on resistance 3.2 to 4.4 v dp_con/dm_con =0v, 0.4v, i on =8ma, figure 7 6 9 ? r onuart uart range switch on resistance 3.2 to 4.4 v dp_con/dm_con =0v, 3.2v, i on =8ma, figure 7 8 ? audio r/l switch on paths r onaud audio switch on resistance 3.2 to 4.4 v l/r =-0.8v, 0.8v, i on =30ma, figure 7 3 ? r flat audio r on flatness (1) 3.8 0.16 ? r term internal termination resistors 1 k ? total switch current consumption i ccsl battery supply sleep mode average current 3.2 to 4.4 static current during sleep mode (sel[2:0]=0) 1 a i ccwk battery supply active mode average current 3.2 to 4.4 usb/uart mode 20 35 a audio mode 1 a i ccselt increase in i ccsl /i ccwk current per control voltage and v cc 3.2 to 4.4 v sel =2.8v and v cc =4.4v 8 a v sel =1.8v and v cc =4.4v 10 a note: 3. flatness is defined as the diffe rence between the maximum and minimum values of on resistance over the specified range of conditions.
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 7 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability switch path ac electrical characteristics (4) all typical value are for v cc =3.8v at 25oc unless otherwise specified. symbol parameter v cc (v) conditions ta = -40 to +85c unit figure min. typ. max. xtalk active channel crosstalk dp_con to dm_con audio mode 3.8 f=20khz, r t =32 ? , c l =0pf -95 db figure 10 usb mode 3.8 f=1mhz, r t =50 ? , c l =0pf -75 f=240mhz, r t =50 ? , c l =0pf -36 o irr off isolation rejection ratio audio rejection l_host to dm_con, r_host to dp_con 3.8 f=20khz, r t =32 ? , c l =0pf -100 db figure 9 usb rejection dm_host to dm_con, dp_host to dp_con 3.8 f=1 mhz, r t =50 ? , c l =0pf -85 f=240mhz, r t =50 ? , c l =0pf -35 thd+n total harmonic distortion + noise (audio path) 3.8 20hz to 20khz, r l =16 ? , input signal range 1.6v pp 0.10 % figure 14 20hz to 20khz, r l =32 ? , input signal range 1.6v pp 0.07 % figure 14 note: 4. guaranteed by characteriza tion; not production tested. capacitance symbol parameter v cc (v) conditions t a = -40 to +85c unit figure min. typ. max. c in select pins capacitance (5) 0 v bias =0.2v 2.5 pf figure 12 c off(d+, d-) d+, d- on capacitance (hs usb mode) (5) 3.8 v bias =0.2v, f=1mhz 4.0 pf figure 12 c on(d+, d-) d+, d- on capacitance (hs usb mode) (5) 3.8 v bias =0.2v, f=1mhz 6.8 pf figure 13 note: 5. guaranteed by characteriza tion; not production tested.
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 8 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability high-speed usb eye compliance results figure 4. high-speed test results (dp_con/dm_con ? dp_host1/dm_host1) figure 5. high-speed test results (dp_con/dm_con ? dp_host2/dm_host2) figure 6. high-speed eye compliance input signal
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 9 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability test diagrams select nb n na v sel = 0 or v cc i on v on r on = v on /i on gnd v in gnd v in select v sel = 0 orv cc nc a i a(off) v in gnd **each switch port is tested separately. v in figure 7. on resistance figure 8. off leakage v out gnd gnd r t gnd gnd v s r s network analyzer r t gnd r s and r t are functions of the application environment (see ac/dc tables). v sel gnd off-isolation = 20 log (v out /v in ) - v out gnd gnd r t gnd gnd v s r s network analyzer r t gnd r s and r t are functions of the application environment (see ac tables for values). v s1, s2, s3 gnd crosstalk = 20 log (v o u v in nc figure 9. channel off isolation figure 10. active channel crosstalk r s v out q = v out ? c l v out v out v cc 0v input ? v sel generator gnd v s c l v sel v in b ns n gnd c l includes test fixture and stray capacitance gnd off on off ma figure 11. charge injection test
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 10 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability test diagrams (continued) v sel = 0 or v c c nb n capacitance meter ns n nb n f=1mhz figure 12. channel off capacitance v sel = 0 orv cc nb n capacitance meter ns n nb n f=1mhz figure 13. channel on capacitance v out gnd gnd r t gnd gnd v s r s audio analyzer v cntrl gnd v in r s and r t are functions of the application environment (see ac tables for specific values). v sel = 0 or v cc figure 14. total harmonic distortion + noise
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 11 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability physical dimensions a b c seating plane recommended land pattern notes: a. package does not fully conform to jedec standard. b. dimensions are in millimeters. c. dimensions and tolerances per asme y14.5m, 1994. d. land pattern recommendation is based on fsc design only. e. drawing filename: mkt-umlp12arev4. scale : 2x lead option 1 scale : 2x lead option 2 detail a scale : 2x pin#1 ident top view bottom view 0.10 c 0.08 c 0.10 c 2x 2x side view 0.10 c 0.05 0.00 3 6 1 0.10 c a b 0.05 c 0.55 max. 12 1.80 1.80 0.40 0.25 0.15 (12x) 0.35 0.45 2.10 2.10 0.40 0.563 (11x) 0.20 (12x) 1 0.152 9 0.588 detail a pin#1 ident (11x) package edge 0.10 0.10 0.45 0.35 0.10 figure 15. 12-lead, ultrathin molded leadless package (umlp) package drawings are provided as a servic e to customers considering fairchild co mponents. drawings may change in any manner without notice. please note the revision and/or date on the drawi ng and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online pack aging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ .
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA806 ? rev. 1.0.1 12 FSA806 ? usb2.0 high-speed (480mbps), uart, a nd audio switch with negative signal capability

▲Up To Search▲

Price & Availability of FSA806

	To Download FSA806 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .