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january 2006 1/21 21 rev. 1 STMAV335 low on resistance triple, sp3t, wide-bandwidth video switch features bi-directional operation 3x3 input/3output channels analog video switch wide bandwidth 300mhz low 4 ? switch resistance between two ports excellent r on matching between channels minimal propagation delay through the switch low quiescent current consumption v cc operating range: 4.0v to 5.5v zero bounce in flow-through mode control inputs compatible with ttl level data and control inputs provide the undershoot clamp diode high esd rating: > 2kv hbm ?40c to 85c operating temperature range suitable for both rgb and component-video switching available in a small tssop16 package applications advanced tvs front projectors lcd monitors notebook pcs dvd players description the STMAV335 is a bi-directional triple (3 channel) single pole/triple throw (sp3t) high- speed, low-power cmos ttl-compatible analog video switch designed for advanced video applications which demand superior image quality. the low on resistance (r on ) of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. STMAV335 is designed for very low cross-talk, low bit-to-bit skew, high channel-to-channel noise isolation and low i/o capacitance. the switch offers very little or practically no attenuation of the high-speed signals at the outputs, thus preserving the signal integrity to pass stringent requirements. moreover the device reduces the overall bom costs by eliminating the need for more costly multi input-output controllers. tssop16 www.st.com order codes part number temperature range package comments STMAV335 ?40 c to +85 c tssop16 STMAV335ttr
STMAV335 2/21 contents 1 summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 application diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 power supply sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 ac loading and diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 9 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
STMAV335 1 summary description 3/21 1 summary description 1.1 functional description the STMAV335 is a high bandwidth analog video switch. its low on-resistance and low i/o capacitance result in a very small propagation delay. the combination of sel1 and sel2 is used to either disable or enable the desired video channel. refer to the truth table for the selection of the appropriate channels. figure 1. functional diagram
2 pin configuration STMAV335 4/21 2 pin configuration table 1. pin description table 2. truth table figure 2. pin configuration (top view ) symbol type name and functions sel1, sel2 in bus switch enable. tie to v cc through a pull-up resistor. the minimum value of the resistor is determined by the current-sinking capability of the driver. y/r, pb/g, pr/b in/out analog video i/os y1, pb1, pr1 in/out component 1; analog video i/os y2, pb2, pr2 in/out component 2; analog video i/os r, g, b in/out rgb or component 3; analog video i/os v cc power supply gnd ground sel1 sel2 selection 0 0 component = ypbpr1 0 1 component = ypbpr2 1 0 component = rgb 1 1 switch disabled; external pull up resistor recommended sel1 y1 y2 r pb1 pb2 g pr/b v cc sel2 y/r pb/g gnd pr1 pr2 b 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 sel1 y1 y2 r pb1 pb2 g pr/b v cc sel2 y/r pb/g gnd pr1 pr2 b 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
STMAV335 3 application diagrams 5/21 3 application diagrams 3.1 power supply sequencing proper power-supply sequencing is advised for all cmos devices. it is recommended to always apply v cc before applying any signals to the input/output or control pins. figure 3. STMAV335 used in lcd tv as a 3-to-1 analog video switch figure 4. STMAV335 used in pc as a 1-to-3 analog video switch
4 maximum ratings STMAV335 6/21 4 maximum ratings stressing the device above the rating listed in the ?absolute maximum ratings? table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. refer also to the stmicroelectronics sure program and other relevant quality documents. table 3. absolute maximum ratings t a = 25 c, v ss = 0v note: absolute maximum ratings are those values above which damage to the device may occur. functional operation under these conditions is not implied. all voltages are referenced to gnd. symbol parameter value unit v cc supply voltage -0.5 to + 7.0 v v s dc switch voltage -0.5 to + 7.0 v v in dc input voltage -0.5 to + 7.0 v i ik dc input diode current -50 ma i out dc output sink current 128 ma i cc /i gnd dc v cc /gnd current 100 ma t stg storage temperature range -65 to 150 c
STMAV335 5 electrical characteristics 7/21 5 electrical characteristics table 4. recommended operating conditions t a = -20 to +70 c, v ss = 0v note: 1 unused control inputs must be held high or low. they should not float. 2 in accordance with iec61000-4-2, level 4 table 5. dc electrical characteristics t a = -40c to +85c note: 1 measured by the voltage drop between y/r, pb/g, pr/b and yx/r, pbx/g, prx/b pins at the indicated current through the switch. on resistance is determined by the lower of the voltages on the two. symbol parameter ( note 1 ) test conditions min. typ. max. unit v cc power supply voltage 4.0 5.5 v v in input voltage 0 5.5 v v out output voltage 0 5.5 v t r, t f input rise and fall time switch control input 0 5 ns/v switch i/o 0 dc ns/v t a free air operating temperature -40 +85 c v esd esd-human body model (hbm) note 2 -2 +2 kv symbol parameter test conditions v cc (v) min. typ. max. unit analog signal range 5 0 2.0 v v ik clamp diode voltage i in = -18ma 4.5 -1.2 v v ih high level input voltage 4.0-5.5 2.0 v v il low level input voltage 4.0-5.5 0.8 v i i input leakage current 0 v in 5.5v 5.5 10 a i off off-state leakage current 0 y/r, pb/g, pr/b yx v cc , pbx v cc , prx v cc r v cc , g v cc , b v cc 5.5 10 a r on switch on resistance ( 1 ) v in = 1.0v, i on = 13ma 4.5 3 7 ? v in = 2.0v, i on = 26ma 4.5 7 10 ? i cc quiescent supply current v in = v cc or gnd, i out = 0 5.5 3 a ? i cc increase in i cc per input one input at 3.4v other inputs at v cc or gnd 5.5 2.5 ma
5 electrical characteristics STMAV335 8/21 table 6. ac electrical characteristics t a = -40c to +85c, c l = 20pf, ru = rd = 75 ? table 7. capacitance t a = 25c, f = 1mhz symbol parameter test conditions v cc = 4.5 - 5.5v v cc = 4.0v unit min. typ. max. min. max. t pzh , t pzl output enable time select to bus yx/ r, pbx/g, prx/b v i = 7v for t pzl v i = open for t phz 5.2 5.7 ns output enable time select to bus y/r, pb/g, pr/b 5.1 5.6 t phz , t plz output disable time select to bus yx/ r, pbx/g, prx/b v i = 7v for t plz v i = open for t phz 5.2 5.5 ns output disable time, output enable time oe_n to bus a, b/c 5.5 5.5 b w -3db bandwidth r l = 150 ? t a = 25c 300 mhz x talk crosstalk r in = 10 ? r l = 150 ? , 10 mhz -58 db d g differential gain r l = 150 ? f = 3.58 mhz 0.64 % d p differential phase r l = 150 ? f = 3.58 mhz 0.1 deg. p irr off isolation r l = 150 ? 10 mhz -60 db symbol parameter test conditions min. typ. max. unit c in control pin input capacitance v cc = 5.0v 3pf c i/o input/output capacitance port: y/r, pb/g, pr/b v cc , sel1, sel2 = 5.0 v 7pf input/output capacitance port: yx/r, pbx/g, prx/b 5pf c on switch on capacitance v cc = 5.0v, except sel1,sel2=5.0 12 pf
STMAV335 6 ac loading and diagrams 9/21 6 ac loading and diagrams figure 5. ac test circuit figure 6. ac waveforms c l 20 pf rd 75 ? ru v i from output under test c l 20 pf rd 75 ? ru v i from output under test t f = 2.5ns t r = 2.5ns 3.0v 1.5v gnd 1.5v 10% 90% 90% 10% enable input t pzl t pzh t phz t plz v ol + 0.3v v ol v oh v oh C0.3v output 1.5 v output 1.5 v t f = 2.5ns t r = 2.5ns 3.0v 1.5v gnd 1.5v 10% 90% 90% 10% enable input t pzl t pzh t phz t plz v ol + 0.3v v ol v oh v oh C0.3v output 1.5 v output 1.5 v
7 test circuits STMAV335 10/21 7 test circuits figure 7. test circuit to measure the on-resistance of the switch
STMAV335 7 test circuits 11/21 note: 1 cl includes probe and jig capacitance. 2 all input pulses are supplied by generators having the following characteristics: prr 10mhz, zo = 50 ? , tr, tf = 2.5ns. 3 the outputs are measured one at a time, with one transition per measurement. figure 8. enable/disable circuit and timing diagram table 8. test circuit test v cc r l c l v y1 v pb1 v pr1 enable time (tpzl, tpzh) 4.75v 0.75v 4.75v 0.75v 4.75v 0.75v 75 75 75 20 20 20 gnd gnd v cc gnd v cc gnd v cc gnd gnd disable time (tplz, tphz) 4.75v 0.75v 4.75v 0.75v 4.75v 0.75v 75 75 75 20 20 20 gnd gnd v cc gnd v cc gnd v cc gnd gnd
7 test circuits STMAV335 12/21 differential gain and phase are measured at the output of the on channel. for example, when sel1, sel2 = 0 and y is the input, the output is measured at y1. figure 9. differential gain/phase measurement test circuit
STMAV335 7 test circuits 13/21 frequency response is measured at the output of the on channel. for example, when sel1,sel2 = 0, and y is the input, the output is measured at y1. all unused analog i/o ports are left open. figure 10. test circuit for frequency response (bw)
7 test circuits STMAV335 14/21 crosstalk is measured at the output of the non-adjacent on channel. for example, when sel1,sel2 = 0, and y is the input, the output is measured at pb1. all unused analog input ports (pb,pr) and output ports (pbx,prx) are connected to gnd through 10 ? and 50 ? pull- down resistors respectively. note: 50 ? termination resistor is needed for the network analyzer. figure 11. crosstalk test circuit
STMAV335 7 test circuits 15/21 off-isolation is measured at the output of the off channel. for example, when sel1=0, sel2=v cc , and y is the input, the output is measured at y1. all unused analog input ports are left open, and output ports are connected to gnd through 50 ? pull-down resistors. note: 50 ? termination resistor is needed for the network analyzer. figure 12. off-isolation test circuit
7 test circuits STMAV335 16/21 figure 13. esd protection circuit for input side of i/o pin figure 14. esd protection circuit for output side of i/o pin figure 15. esd protection circuit for sel1, sel2 inputs
STMAV335 8 package mechanical data 17/21 8 package mechanical data in order to meet environmental requirements, st offers these devices in ecopack ? packages. these packages have a lead-free second level interconnect . the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com.
8 package mechanical data STMAV335 18/21 dim. mm inch min. typ. max. min. typ. max. a1.10.433 a1 0.05 0.10 0.15 0.002 0.004 0.006 a2 0.85 0.9 0.95 0.335 0.354 0.374 b 0.19 0.30 0.0075 0.0118 c 0.09 0.20 0.0035 0.0079 d 4.9 5 5.1 0.193 0.197 0.201 e 6.25 6.4 6.5 0.246 0.252 0.256 e1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 bsc 0.0256 bsc k0 o 4 o 8 o 0 o 4 o 8 o l 0.50 0.60 0.70 0.020 0.024 0.028 c e b a2 a e1 d 1 pin 1 identification a1 l k e tssop16 mechanical data
STMAV335 8 package mechanical data 19/21 dim. mm. inch min. typ max. min. typ. max. a 330 12.992 c 12.8 13.2 0.504 0.519 d 20.2 0.795 n 60 2.362 t 22.4 0.882 ao 6.7 6.9 0.264 0.272 bo 5.3 5.5 0.209 0.217 ko 1.6 1.8 0.063 0.071 po 3.9 4.1 0.153 0.161 p 7.9 8.1 0.311 0.319 tape & reel tssop16 mechanical data
9 revision history STMAV335 20/21 9 revision history date revision description of change 23-jan-2006 1 first release
STMAV335 9 revision history 21/21 i nformation furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the con sequence s o f use of such information nor for any infringement of patents or other rights of third parties which may result from its use. n o license is grante d b y implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publicatio n are subje ct t o change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics produ cts are n ot a uthorized for use as critical components in life support devices or systems without express written approval of stmicroelectron ics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2006 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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