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datasheet hybrid switch with ne gative signal handling idths221p10 idt? hybrid switch with negative signal handling 1 idths221p10 rev f 112108 description the idths221p10 is a high-performance hybrid switch device, combined with hybrid low distortion audio and usb 2.0 high speed data (480 mbps) signal switches, and analog switches. when operated with a 1.8 v single supply, this high performance switch allows audio signal swings below-ground, allowing the use of a common usb and audio headphone connector in personal media players and other portable battery powered devices. the idths221p10 logic sel control pin is 1.8 v compatible which allows fo r control via a standard controller. with a vdd voltage in the range of 1.7 v to 1.95 v, the device can pass usb 3 v signal sources in the portable device, with up to 5.5 v tolerant on usb and com signal pins. the part has an audio enable control pin to open all the switches and put the part in a low power state. the idths221p10 is availabl e in a small 10-pin mlp package. features ? +1.7 v to +1.95 v single-supply operation (vddx) ? low distortion negative signal handling capability with ron less than 2 ohm for audio signal ? control pin to open all switches and enter low power state ? cross-talk audio channels (20 hz to 20 khz): -110db ? -3db bandwidth usb switches: 700 mhz ? available in mlp packages ? rohs compliant ? compliant with usb 2.0 short circuit requirements without additional external components ? power off protection on common d+/r, d-/l ports applications ? mp3 and other personal media players ? pda?s ? audio/usb switching ? cellular and mobile phones block diagram vddd gnd d- l d+ r sel com- com+ vdda control circuit r com- r com+
idths221p10 hybrid switch with negative si gnal handling hybrid switch idt? hybrid switch with negative signal handling 2 idths221p10 rev f 112108 pin assignment (10-pin mlp) truth table (com+, com-) pin descriptions sel d+ vdda gnd l com- d- r com+ vddd sel com+ com- 0rl 1d+d- pin number pin name pin description 1 d- 3 v usb signal. bi-directional. 2 r audio signal pin (right). uni-directional. 1.5 v signal. 3 l audio signal pin (left). uni-directional. 1.5 v signal. 4 gnd ground pin. 0v reference. 5 vdda power pin for audio r/l signal. +1.8 v vdd. 6 com- audio and usb signal common pin. bi-direction in usb mode, uni-directional in audio mode. 7 com+ audio and usb signal common pin. bi-direction in usb mode, uni-directional in audio mode 8 sel control signal pin. internal pull-down resistor. 9 vddd power pin for usb. +1.8 v vdd. 10 d+ 3 v usb signal. bi-directional.
idths221p10 hybrid switch with negative si gnal handling hybrid switch idt? hybrid switch with negative signal handling 3 idths221p10 rev f 112108 detailed description the idths221p10 device is a dual single pole/double throw (spdt) high performance switch device that can operate from a single dc power supply in the range of 1.7 v to 1.95 v. it was designed to function as a dual 2 to 1 multiplexer to select between usb differential data signals and audio l and r stereo signals. it comes in tiny mlp packages for use in cell phones, mp3 players, pdas, and other personal media players. the part consists of one hybrid dual 2 ? audio and 5 ? usb switches. the hybrid switch can accept audio signals that swing below ground and usb signals. they were designed to pass audio left and right stereo signals, and are ground referenced, with minimal distortion. the usb switches were designed to pass high-speed usb differential data signals with minimal edge and phase distortion. the idths221p10 was specifically designed for cell phones and other personal media player applications that need to combine the audio headphone jack and the usb data connector into a single shared connector, thereby saving space and component cost. the idths221p10 has a sel pin that select between the audio switches and the usb switches. this pin can be driven low or high to switch between the audio inputs and usb data inputs. audio switches the two audio switches (l, r) are 2 ? ? switches that can pass signals that swing below ground by as much as 1.5 v. they were designed to pass ground reference stereo signals with minimal insertion loss and very low distortion. crosstalk between the audio switches over the audio band is typically < -110db. these audio switches are uni-directional switches. the audio drivers should be connected at the l and r side of the switch and the speaker loads should be connected at the com side of the switch. the audio switches are active (turned on) whenever the sel voltage to < 0.5 v. note : whenever the audio switches are on the usb transceivers need to be in the high impedance state or static high or low state. usb switches the two usb switches (d+, d-) are 5 ? ? bidirectional switches that were designed to pass high-speed usb differential signals in the range of 0v to 400 mv. these switches have low capacitance and high bandwidth to pass usb high-speed signals (480 mbps) with minimum edge and phase distortion to meet usb 2.0 high-speed signal quality specifications. the maximum signal range for the usb switches is from 0v to 3.6 v. the signal voltage at d- and d+ should not be allow to exceed the 3.6 voltage rail or go below ground. the usb switches are active (turned on) whenever the sel voltage is > 1.2 v. note : whenever the usb switches are on the audio drivers of the codec need to be at ac or dc ground or floating to keep from interfering with the data transmission. logic control the state of the idths221p10 device is determined by the voltage at the sel pin. refer to truth table on page 2 of data sheet. these logic pins are 1.8 v logic compatible, and can be controlled by a standard processor. the sel pin is internally pulled low through a 4m ? resistor to ground and can be left floating or tri-stated by the processor. logic control voltage levels: sel = logic ?0? (low) when < 0.5 v sel = logic ?1? (high) when > 1.2 v
idths221p10 hybrid switch with negative si gnal handling hybrid switch idt? hybrid switch with negative signal handling 4 idths221p10 rev f 112108 absolute maximum ratings stresses above the ratings listed below can cause permane nt damage to the idths221p10. these ratings, which are standard values for idt commercially rated parts, are stress ratings only. functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for exte nded periods can affect product reliability. electrical parameters are guaranteed only over the recommended operating temperature range. note : these specifications are for absolute maximum rating. not recommended for typical operation. recommended operating conditions 1 note 1: the input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. dc switch voltage may never exceed 1.95 v. item rating vdd to gnd -0.3 v to 6.0 v ambient operating temperature range -40c to +85c continuous current (audio switches) 150 ma peak current (a udio switches) pulsed 1 ms, 10% duty cycle max. 300 ma continuous current (usb switches) 40 ma peak current (usb switches) pulsed 1 ms, 10% duty cycle max. 100 ma voltages switch i/o voltage - d+, d-, com+, com- (see note below) -0.3 v to +6 v switch i/o voltage - l, r (see note below) -2 v to +2 v selx (see note below) -0.3 v to [(vdd) + 0.3 v] esd rating hbm >8 kv mm >400 v cdm >1 kv symbol parameter rating v cc supply voltage 1.7 v to 1.95 v v in dc switch voltage 0v to v dd dc input diode current 0v to v dd storage temperature -40c to +85c
idths221p10 hybrid switch with negative si gnal handling hybrid switch idt? hybrid switch with negative signal handling 5 idths221p10 rev f 112108 electrical characteristics ? 1.7 v to 1.95 v supply unless stated otherwise, vdd =1.7 v to 1.95 v, gnd = 0v parameter symbol conditions min. typ. max. units audio switches (l, r) audio signal range v analog -1.5 1.5 v on-resistance r on 2 ? r on matching between channels r on 0.2 ? r on flatness r flat(on) 1.5 ? discharge pull-down resistance r com+, r com- pop discharge pull-down resistor 10 k ? usb switches (d+, d-) usb signal range v analog 03.6v on-resistance r on 5 ? r on matching between channels r on 0.1 ? r on flatness r flat(on) 1.5 ? off-leakage current i d+(off) or i d-(off) 50 na on-leakage current i dx 50 na
idths221p10 hybrid switch with negative si gnal handling hybrid switch idt? hybrid switch with negative signal handling 6 idths221p10 rev f 112108 parameter symbol conditions min. (note 2) typ. max. (note 2) units dynamic characteristics turn-on time t on 20 s turn-off time t off 5s break-before-make delay t d 25 s skew t skew r l = 45 ? , c l = 10 pf, t r =t f =750 ps at 480 mbps, (duty cycle=50%) 50 ps additive jitter t j r l =45 ? , c l =10 pf, t r =t f =750 ps at 480 mbps 100 ps propagation delay t pd r l =45 ? , c l =10 pf (fig.7) 250 ps crosstalk (channel-to-channel) r to com-, l to com+ r l =32 ? , f = 20hz to 20 khz, v l or v r =0.707 v rms (2v p-p ) -110 db total harmonic distortion thd f = 20hz to 20 khz, v l or v r =0.707 v rms (2v p-p ), r l = 32 ? 0.06 % usb switch -3 db bandwidth r l =50 ? , c l =5 pf 700 mhz d+/d- off capacitance c d+ (off), c d- (off) f=1 mhz, v l or v r =v comx =0v 6 pf l/r off capacitance c loff , c roff f=1 mhz, v d+ or v d- =v comx =0v 9 pf com on capacitance c com-(on) , c com+(on) f=1 mhz, vdd=3.3 v, v d- or v d+ =v comx =0v 10 pf power supply power supply range v dd 1.7 1.95 v positive supply current i dd 510a voltage low vil sel pin 0.5 v voltage high vih sel pin 1.2 v internal pull-down resistor r sel sel pin 4 m ?
idths221p10 hybrid switch with negative si gnal handling hybrid switch idt? hybrid switch with negative signal handling 7 idths221p10 rev f 112108 test circuits and waveforms figure 1: switching times figure 2: break-before-make time switch input v dd v input gnd audio or usb ctrl comx in v in v out c r l c l 50 ohm 10pf repeat test for all switches. c l includes fixture and stray capacitance. v out = v (input) r l r l + r (on) fig. 1b test circuit logic input switch input switch output v dd v input 0v 0v 50% 90% v out t off t on 90% t r <20ns t r <20ns logic input waveform is inverted for switches that have the opposite logic sense. fig. 1a measurement points v dd v input gnd l or r ctrl comx in v in v out c r l c l 50 ohm 10pf repeat test for all switches. c l includes fixture and stray capacitance. fig. 2b test circuit d- or d+ logic input switch output v dd 0v 90% v out t d 0v fig 2a measurement points
idths221p10 hybrid switch with negative si gnal handling hybrid switch idt? hybrid switch with negative signal handling 8 idths221p10 rev f 112108 marking diagram (mlp) notes: 1. ?z? is the device step (1 to 2 characters). 2. yyww is the last two digits of the year and week that the part was assembled. 3. ?$? is the assembly mark code. 4. ?g? after the two-letter package code designates rohs compliant package. 5. ?i? at the end of part number indicates industrial temperature range. 6. bottom marking: country of origin if not usa. thermal characteristics note : ja is measured with the component mounted on a high effective thermal conductivity test board in free air. parameter symbol rating units thermal resistance (see note below) 10-pin mlp package ja tbd c/w maximum junction temperature (plastic package) +150 c maximum storage temperature range -65 to +150 c tbd
idths221p10 hybrid switch with negative si gnal handling hybrid switch idt? hybrid switch with negative signal handling 9 idths221p10 rev f 112108 package outline and package dimensions (10-pin mlp) min nom max notes a 0.51 0.55 0.60 1, 2 a1 0.00 0.02 0.05 1, 2 a3 0.15 ref 1, 2 b 0.15 0.20 0.25 c 0.09 0.20 d e 1.80 basic e1 6.00 6.20 n 3 nd 5 ne 5 e aaa bbb ccc 1.40 basic 0.40 0.15 0.10 0.10 10 3 2 millimeters symbol
idths221p10 hybrid switch with negative si gnal handling hybrid switch idt? hybrid switch with negative signal handling 10 idths221p10 rev f 112108 ordering information parts that are ordered with a ?g? after the two-letter package code are the pb-free configuration and are rohs compliant. while the information presented herein has been checked for both accuracy and reliability, integrated device technology (idt) a ssumes no responsibility for either its use or for the infringement of any paten ts or other rights of third parties, which would resul t from its use. no other circuits, patents, or licenses are im plied. this product is intended for use in normal commercial applications. any other applications such as those requiring extended temperature range, high reliab ility, or other extraordinary environmental requirements are not recommended without additional processing by idt. idt reserves th e right to change any circuitry or specifications without noti ce. idt does not authorize or warrant any idt product for use in life support devices or critical medical instruments. revision history part / order number marking shipping packaging package temperature HS221P10NDGI tbd tubes 10-pin mlp -40 to +85 c HS221P10NDGI8 tape and reel 10-pin mlp -40 to +85 c rev. originator date description of change a el 10/22/07 preliminary datasheet. initial release. b el 11/09/07 added low power state c 01/04/08 changed supply voltage from 1.8 v 0.1 v to 1.7 v ? 1.95 v. d 01/04/08 added rcom+ and rcom- re sistors to block diagram; updated electrical characteristics table. e 01/29/08 absolute i/o voltage rati ngs. industrial temperature range. f 11/21/08 updated esd; clarificatio n on pop discharge resistor.
? 2006 integrated device technology, inc. all rights reserved. product specifications subject to change without notice. idt and the idt logo are trademarks of integrated device technology, inc. accelerated thinking is a service mark of integrated device technology, inc. all other brands, product names a nd marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. printed in usa corporate headquarters integrated device technology, inc. www.idt.com for sales 800-345-7015 408-284-8200 fax: 408-284-2775 for tech support www.idt.com/go/clockhelp innovate with idt and accelerate your future netw orks. contact: www.idt.com idths221p10 hybrid switch with negative signal handling hybrid switch

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