july 2012 ? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA9485 ? rev. 1.0.3 FSA9485 ? analog switch usb port multimedia swit ch featuring automatic switching and accessory FSA9485 ? usb port multimedia switch featuring automatic switching and accessory detection features switch type audio, usb, uart, video, charging switch mechanism automatic switching with available interrupt accessory detection headsets with mic and remote usb data cable uart serial link usb chargers (car, cdp, dcp) factory-mode cables teletype (tty) converter usb otg cea-936-a car kit video usb full-speed and high-speed 2.0 compliant usb charging integrated fet, charger detect, ocp (1.5a), ovt (28v), 7v ovp audio left, right, mic (negative swing) uart rxd & txd v ideo composite v bat 3 to 4.4v programmability i 2 c esd 15kv iec 61000-4-2 air gap package 25-ball wlcsp (2.1x2.1x0.625mm) ordering information FSA9485ucx description the FSA9485 is a high-performance multimedia switch featuring automatic switching and accessory detection for the usb port. the FSA9485 allows the sharing of a common usb port to pass audio, video, usb data / charging / on-the-go (otg), as well as factory programmability. in addition, the FSA9485 integrates detection for accessories such as headphones, headsets (mic / button), cea-936-a car kit, usb chargers, and uart data cables to use a common usb connector. the FSA9485 can be programmed for manual switching or automatic switching of data paths based on the accessory detected. with integrated 28v over-v oltage protection and 1.5a over-current protected fet, the FSA9485 integrates common usb protection devices for v bus . applications ? mobile phones & portable media players additional information ? for additional performance information, please contact analogswitch@fairchildsemi.com . figure 1. typical application fsa9280a FSA9485 usb data, otg, charging stereo / mono headphones v ideo uart factory test tty converter ocp, ovp protection
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA9485 ? rev. 1.0.3 2 FSA9485 ? analog switch usb port multimedia swit ch featuring automatic switching and accessory block diagram figure 2. block diagram pin configuration figure 3. pin configuration (top-through view) intb vddio chg_ det vbus_ out vbus_ in dp_ host i 2 c_ sda audio _l mic dm_ con dm_ host i 2 c_ scl v_ audio _l audio _r dp_ con id_ con vbat id_ bypass v_ audio _r video rxd txd boot jig gnd 12345 a b c d e baseband processo r v bus_in dm_con dp_con gnd id_con hs usb int i 2 c_scl i 2 c_sda v ddio dp_host dm_host i 2 c fs usb or uart audio codec a udio_r a udio_l rxd txd interrupt FSA9485 mic phone powe r float detect charger detect switc h control and i 2 c slave detection ocp,ovp 4 :1 mus and charge pump v bat adc detect chg_det jig boot chargeric v bus_out v_audio_r v_audio_l video dmb - tv id bypass usb? port
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA9485 ? rev. 1.0.3 40 FSA9485 ? analog switch usb port multimedia swit ch featuring automatic switching and accessory physical dimensions figure 25. 25-lead, wafer-level chip-scale package (wlcsp) product-specific dimensions product d e x y FSA9485ucx 2.10 2.10 0.25 0.25 package drawings are provided as a service to customers consi dering fairchild components. 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 packagi ng area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ . ball a1 index area 1 2 3 4 5 a b c d e seating plane 25x a1 0.005 cab f ?0.2600.02 0.40 1.60 0.40 1.60 (x) 0.018 (y) 0.018 e d 0.06 c 0.05 c e d f 0.3780.018 0.2080.021 notes: a. no jedec registration applies. b. dimensions are in millimeters. c. dimensions and tolerance per asmey14.5m, 1994. d. datum c is defined by the spherical crowns of the balls. e. package nominal height is 586 microns 39 microns (547-625 microns). f. for dimensions d, e, x, and y see product datasheet. g. drawing filname: mkt-uc025aarev2. 0.03 c 2x 0.03 c 2x c b a 0.625 0.547 0.40 1.60 0.40 1.60 (?0.200) cu pad (?0.300) solder mask recommended land pattern (nsmd pad type) top view bottom view side views
? 2010 fairchild semiconductor corporation www.fairchildsemi.com FSA9485 ? rev. 1.0.3 41 FSA9485 ? analog switch usb port multimedia swit ch featuring automatic switching and accessory
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