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wireless components 7 x 5 video matrix switch tda 6920 version 1.0 specification august 1999
edition 03.99 published by infineon technologies ag i. gr., sc, balanstra?e 73, 81541 mnchen ? infineon technologies ag i. gr. 25.08.99. all rights reserved. attention please! as far as patents or other rights of third parties are concerned, liability is only assumed for components, not for application s, processes and circuits im- plemented within components or assemblies. the information describes the type of component and shall not be considered as assured characteristics. terms of delivery and rights to change design reserved. due to technical requirements components may contain dangerous substances. for information on the types in question please cont act your nearest infineon technologies office. infineon technologies ag is an approved cecc manufacturer. packing please use the recycling operators known to you. we can also help you C get in touch with your nearest sales office. by agreeme nt we will take packing material back, if it is sorted. you must bear the costs of transport. for packing material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for an y costs incurred. components used in life-support devices or systems must be expressly authorized for such purpose! critical components 1 of the infineon technologies ag, may only be used in life-support devices or systems 2 with the express written approval of the infineon technologies ag. 1 a critical component is a component used in a life-support device or system whose failure can reasonably be expected to cause the failure of that life- support device or system, or to affect its safety or effectiveness of that device or system. 2 life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or maintain and sust ain human life. if they fail, it is reasonable to assume that the health of the user may be endangered. abm ? , aop ? , arcofi ? , arcofi ? -ba, arcofi ? -sp, digitape ? , epic ? -1, epic ? -s, elic ? , falc ? 54, falc ? 56, falc ? -e1, falc ? -lh, idec ? , iom ? , iom ? -1, iom ? -2, ipat ? -2, isac ? -p, isac ? -s, isac ? -s te, isac ? -p te, itac ? , iwe ? , musac ? -a, octat ? -p, quat ? -s, sicat ? , sicofi ? , sicofi ? - 2, sicofi ? -4, sicofi ? -4c, slicofi ? are registered trademarks of infineon technologies ag. ace ? , asm ? , asp ? , potswire ? , quadfalc ? , scout ? are trademarks of infineon technologies ag. revision history: current version: 08.99 previous version:data sheet page (in previous version) page (in current version) subjects (major changes since last revision)
product info product info wireless components specification, august 1999 package tda 6920 product info general description the tda 6920 switches 7 video input sources to 5 outputs. each output can be switched to only one input, but one input can be switched to all outputs. the c-input may be combined with one cvbs input as y for y+c (s-vhs) operation. y+c operation is selected by bus. features n fast i 2 c-bus controlled (max. 400 khz) n cascadable (2 bus addresses) n 7 cvbs inputs, 5 outputs 3 inputs with clamp disable by bus n 1 input selectable as y-input (s-vhs) n 1 additional c-input (s-vhs) n y+c operation for s-vhs selected by bus n fully esd protected n -60 db max. crosstalk at 5 mhz (p-dso-28 only) n low operating voltage of 7.5 v n 5v operation is possible with reduced output signals of max. 2 v pp n 15 mhz minimum bandwidth n noise insensitive clamping inputs n low impedance off condition separate for each output application n television sets n satellite receivers n video mixing desks ordering information type ordering code package tda 6920 q67000-a5200 geg p-dip-18 tda 6920x q67007-a5225 geg p-dso-28
1 table of contents 1 table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2 product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1 overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.3 application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.4 package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 3 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.1 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.2 pin definition and function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 3.3 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 3.4 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 3.5 block diagram (p-dso-28) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 4 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4.1 circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4.1.1 application circuit p-dso-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4.1.2 application circuit p-dso-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4.1.3 application circuit p-dip-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 5 reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5.1 electrical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5.1.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5.1.2 operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5.1.3 ac/dc characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5.2 address selection (fast i2c-bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 5.3 data selection ( fast i2c-bus ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 5.4 data mode selections (fast i2c-bus) . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 5.5 bus protocol ( fast i2c-bus ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 5.6 test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 5.7 electrical diagramms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
2 product description 2.1 overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.3 application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.4 package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 contents of this chapter
product description 2 - 2 tda 6920 wireless components specification, august 1999 2.1 overview the tda 6920 switches 7 video input sources to 5 outputs. each output can be switched to only one input, but one input can be switched to all outputs. the c-input may be combined with one cvbs input as y for y+c (s-vhs) operation. y+c operation is selected by bus. 2.2 features n fast i 2 c-bus controlled (max. 400 khz) n cascadable (2 bus addresses) n 7 cvbs inputs, 5 outputs, 3 inputs with clamp disable by bus n 1 input selectable as y-input (s-vhs) n 1 additional c-input (s-vhs) n y+c operation for s-vhs, selected by bus n fully esd protected n -60 db max. crosstalk at 5 mhz (p-dso-28 only) n low operating voltage of 7.5 v n 5v operation is possible with reduced output signals of max. 2 v pp n 15 mhz minimum bandwidth n noise insensitive clamping inputs n low impedance off condition, separate for each output 2.3 application n television sets n satellite receivers n video mixing desks
product description 2 - 3 tda 6920 wireless components specification, august 1999 2.4 package outlines p-dso-28 p-dip-18
3 functional description 3.1 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.2 pin definition and function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 3.3 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 3.4 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 3.5 block diagram (p-dso-28) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 contents of this chapter
functional description 3 - 2 tda 6920 wireless components specification, august 1999 3.1 pin configuration pin_config_1.wmf figure 3-1 pin configuration p-dso-28 pin_config_2.wmf figure 3-2 pin configuration p-dip-18 c vcc out1 gnd out2 gnd out3 gnd out4 gnd out5 address sda scl gnd in1 gnd in2 gnd in3 gnd in4 gnd in5 gnd in6 gnd in7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 tda 6920 vcc out1 out2 out3 out4 out5 address sda scl c in1 in2 in3 in4 in5 in6 in7 gnd 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 tda 6920
functional description 3 - 3 tda 6920 wireless components specification, august 1999 3.2 pin definition and function table 3-1 pin definition and function symbol pin function p-dip-18 p-dip-28 gnd -1 signal + power supply ground in1 22 cvbs input 1 gnd -3 signal + power supply ground in2 34 cvbs input 2 gnd -5 signal + power supply ground in3 46 cvbs input 3 gnd -7 signal + power supply ground in4 58 cvbs input 4 gnd -9 signal + power supply ground in5 610 cvbs input 5 v ref3 -11 reference voltage for external use in6 712 cvbs input 6 gnd 913 power supply ground in7 814 cvbs input 7 scl 10 15 i 2 c-bus clock sda 11 16 i 2 c-bus data address 12 17 address selection out5 13 18 cvbs output 5 gnd -19 signal + power supply ground out4 14 20 cvbs output 4 gnd -21 signal + power supply ground out3 15 22 cvbs output 3 gnd -23 signal + power supply ground out2 16 24 cvbs output 2 gnd -25 signal + power supply ground out1 17 26 cvbs output 1 vcc 18 27 positive power supply voltage c 128 separate color adding input for input 1
functional description 3 - 4 tda 6920 wireless components specification, august 1999 3.3 pin description c ( color input ) in 2,5,6,7 ( cvbs input ) in 2,3,4 ( cvbs input ) scl , address
functional description 3 - 5 tda 6920 wireless components specification, august 1999 sda out 1-5 (cvbs output) vref (s=-28 only)
functional description 3 - 6 tda 6920 wireless components specification, august 1999 3.4 functional description the main function of the ic is to switch 7 input video sources to 5 outputs. each output can be switched to only one input. it is possible to have the same input connected to several outputs. 3 of the inputs can be used as non-clamping-input, switching is controlled by bus. the clamping function of the other 4 inputs can be switched off by external resistor divider. all switching possibilities are controlled by the i 2 c-bus. all outputs can be switched to low impedance off condition by the i 2 c-bus. driving 75 w load requires external transistors. the recommended coupling capacitor at each input is 47 nf. each clamping input requires a 75 w (max. 500 w ) termination resistor. operation without or with a termination resistor greater than 500 w causes mal- function of the new high performance clamping circuit. unused inputs should be directly grounded. 6 x 8 bits are necessary to determine one complete configuration change (1 addressbyte, 5 databytes). minimum configuration change for 1 output needs 2 x 8 bit (1 addressbyte, 1 databyte). power on reset state: all 5 outputs switched to input 1, all inputs clamped, y+c off.
functional description 3 - 7 tda 6920 wireless components specification, august 1999 3.5 block diagram (p-dso-28) figure 3-3 block diagram (p-dso-28)
4 applications 4.1 circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4.1.1 application circuit p-dso-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4.1.2 application circuit p-dso-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4.1.3 application circuit p-dip-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 contents of this chapter
applications 4 - 2 tda 6920 wireless components specification, august 1999 4.1 circuits 4.1.1 application circuit p-dso-28 figure 4-1 application circuit p-dso-28 (clamping inputs)
applications 4 - 3 tda 6920 wireless components specification, august 1999 4.1.2 application circuit p-dso-28 figure 4-2 application circuit p-dso-28 (no clamping inputs with clamping overide)
applications 4 - 4 tda 6920 wireless components specification, august 1999 4.1.3 application circuit p-dip-18 figure 4-3 applikation circuit p-dip-18
5 reference 5.1 electrical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5.1.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5.1.2 operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5.1.3 ac/dc characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5.2 address selection (fast i2c-bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 5.3 data selection ( fast i2c-bus ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 5.4 data mode selections (fast i2c-bus) continued. . . . . . . . . . . . . . . . . 5-6 5.5 bus protocol ( fast i2c-bus ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 5.6 test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 5.7 electrical diagramms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 contents of this chapter
reference 5 - 2 tda 6920 wireless components specification, august 1999 5.1 electrical data 5.1.1 absolute maximum ratings all voltage values are referenced to ground, if not stated otherwise. warning the maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the ic will result. table 5-1 absolute maximum ratings parameter symbol limit values unit remarks min max supply voltage ( v cc ) v cc 0 14 v reference voltage ( so-28 only ) v ref3 0 5 v reference current ( r lmin = 1k w ) i ref3 3.5 ma output voltage v out1-out5 0 v cc v output current ( r lmin = 500 w ) i out1-out5 5 ma input voltage v c 0 v cc v input voltage v in1-in7 0 v cc v scl, sda, address input voltage v sda, scl, address 0 v cc v esd-voltage all pins hbm ( r=1.5k w , c=100pf ) v esd -6 6 kv junction temperature t j 150 c storage temperatue t stg - 40 125 c thermal resistance ( system - air) t thsa 75 k/w
reference 5 - 3 tda 6920 wireless components specification, august 1999 5.1.2 operating range within the operational range the ic operates as described in the circuit description. the ac / dc characteristic limits are not guaranteed. all voltage values are referenced to ground, if not stated otherwise. 5.1.3 ac/dc characteristics table 5-2 operating range parameter symbol limit values unit test conditions l item min max supply voltage v cc 7.5 13.2 v absolut minimum supply voltage (only usable with reduced output signals of max. 2v pp ) v cc 4.5 v reference voltage ( so-28 only ) v ref3 3.3 3.9 v video-input frequency range - 3 db f in in1-in7,c 0 20 mhz video-input ac-voltage ( color ) v c 1.0 v pp video-input ac-voltage ( y, cvbs ) v in1-in7 1.7 v pp video-output ac-voltage v out1-out5 3.4 v pp input dc-voltage v c 1.3 2.3 v input dc-voltage ( clamping ) v in1-in7 1.8 3.5 v input dc-voltage ( non clamping ) v in2,3,4 1.5 3.2 v input source-impedance (clamping) ri in1-in7 0 500 w i 2 c bus clock f in sda, scl 0 500 khz ambient temperature during operation t a -10 85 c table 5-3 ac/dc characteristics with t a 25 c, v cc = 8.5 v symbol limit values unit test conditions l item min typ max total current consumption i vcc 42 58 ma r l = reference voltage ( so-28 only ) v ref3 3.4 3.6 3.8 vr l = output dc-voltage (clamping) v out1-out5 1.8 vv c,in1-in7 = 0 v pp output dc-voltage (output off) v out1-out5 0.8 vv c,in1-in7 = 0 v pp output current i out1-out5 0.5 1.0 2.0 ma v out =2v,in=0 v pp input dc-voltage v c 1.8 vv c = 0 v pp
reference 5 - 4 tda 6920 wireless components specification, august 1999 table 5-4 ac/dc characteristics with t a 25 c, v cc = 8.5 v (continued) symbol limit values unit test conditions item min typ max input dc-voltage ( clamping ) v in1-in7 1.8 vv in1-in7 = 0 v pp input current ( clamping ) i in1-in7 0.33 1 m a v in1-in7 = 0 v pp input dc-voltage ( for ext. clamping override ) v in1-in7 2.4 vv in1-in7 = 0 v pp input dc-voltage (non-clamping, bus controlled) v in2,3,4 2.4 vv in2,3,4 = 0 v pp input current ( scl, sda, address) i sda, scl i address 0.1 0.4 m a v sda, scl = 0 v v address = 0 v output current ( sda ) i sda 6 ma v sda = 0.6 v output voltage low ( sda ) v sda v sda 0 0 0.2 0.3 0.4 0.6 v v i sda = 3 ma sink i sda = 6 ma sink scl,sda, address (96 hex) : high v sda, scl v address 3.0 v cc v scl,sda, address (94 hex) : low v sda, scl v address 0 1.5 v scl,sda,address (hysteresis) v sda, scl v address 0.2 1 v dependant on input frequency video bandwidth p out/in 15 20 mhz -3db point video gain v out/ v in 1.9 2.0 2.1 crosstalk ( 0 - 5 mhz ) so-28 a -65 -60 db inputs 75 w to gnd crosstalk ( 0 - 5 mhz ) so-28 a -55 -50 db inputs 500 w to gnd crosstalk ( 0 - 5 mhz ) dip-18 a -62 -57 db inputs 75 w to gnd crosstalk ( 0 - 5 mhz ) dip-18 a -45 -40 db inputs 500 w to gnd input ac-voltage v c 0.75 1 v pp sinus input ac-voltage v in1-in7 11.5 v pp clamped input ac-voltage ( sinus ) v in2,3,4 11.5 v pp non clamped output ac-voltage v out1-out5 23 v pp i 2 c bus clock f in sda, scl 400 500 khz output linearity dg out1-out5 0.2 1 % r l = input resistance ( non-clamping ) r c,in2,3,4 40 50 k w input source-impedance ( clamping ) r in1-in7 0 75 500 w input coupling-capacitor ( clamping) c in1-in7 47 10 nf m f cvbs-signal >20hz audiosignal output dyn. impedance r out1-out5 50 75 w
reference 5 - 5 tda 6920 wireless components specification, august 1999 5.2 address selection (fast i 2 c-bus) 1st byte of transmission (8 bit) 5.3 data selection ( fast i 2 c-bus ) 2nd byte of transmission (8 bit) table 5-5 hex binary address pin msb lsb 9 6 1 0 0 1 0 1 1 0 vcc (min. 3v) 9 4 1 0 0 1 0 1 0 0 gnd table 5-6 output selection (3bit, 7bit must always be 0) b7 b6 * b5 b4 b3 b2 b1 b0 * * .... x = don t care selected output 0 x 0 0 0 x x x - not used 0 x 0 0 1 x x x out1 0 x 0 1 0 x x x out2 0 x 0 1 1 x x x out3 0 x 1 0 0 x x x out4 0 x 1 0 1 x x x out5 0 x 1 1 0 x x x - not used 0 x 1 1 1 x x x - not used table 5-7 input selection clamped (3 bit, bit7 must always be 0) b7 b6 b5 b4 b3 * * .... x = don t care b2 b1 b0 selected output 0 x x x x 0 0 0 output off condition 0 0 x x x 0 0 1 in1 0 0 x x x 0 1 0 in2 0 0 x x x 0 1 1 in3 0 0 x x x 1 0 0 in4 0 x x x x 1 0 1 in5 0 x x x x 1 1 0 in6 0 x x x x 1 1 1 in7
reference 5 - 6 tda 6920 wireless components specification, august 1999 5.4 data mode selections (fast i2c-bus) continued 2nd byte of transmission ( 8 bit ) 5.5 bus protocol ( fast i 2 c-bus ) programming example : sda sequence table 5-8 input selection non clamped / y+c (y:always clamped; c:non clamped) ; (3 bit, bit 7 should always be 0) b7 b6 b5 b4 b3 * * .... x = don t care (if only input operation mode change is requested, b5, b4, b3 should be 0, 0, 0 : no output configuration is changed.) b2 b1 b0 selected input 0 0 x x x 0 0 1 in1, (y+c) off 0 0 x x x 0 1 0 in2, clamp on 0 0 x x x 0 1 1 in3, clamp on 0 0 x x x 1 0 0 in4, clamp on 0 1 x x x 0 0 1 in1, (y+c) on 0 1 x x x 0 1 0 in2, clamp off 0 1 x x x 0 1 1 in3, clamp off 0 1 x x x 1 0 0 in4, clamp off start condition address 96h 1st data : output 4 connect to input 3 clamped msb lsb ........... mode output input 1 0 1 0 0 1 0 1 1 0 0 0 1 0 0 0 1 1 data : output 5 connect to input 1 (y + c) last data : output 1 connect to input 4 not clamped stop condition ........... mode output input ........... mode output input 0 1 1 0 1 0 0 1 0 1 0 0 1 1 0 0 0 1 serial data stream
reference 5 - 7 tda 6920 wireless components specification, august 1999 5.6 test circuits figure 5-1 test circuit p-dso-28
reference 5 - 8 tda 6920 wireless components specification, august 1999 figure 5-2 test circuit p-dip-18
reference 5 - 9 tda 6920 wireless components specification, august 1999 5.7 electrical diagramms typical frequency response and crosstalk (simulated) for p-dso-28 package conditions: vcc = 8.5v , all outputs selected to one different input; response: the measured output has max. signal on the selected input; crosstalk : the measured output has no signal on the selected input, another input has max. signal. ( ) f( ) (3) 1 (4) 1 ( ) 1 (6) 1 100k 200k 500k 1meg 2meg 5meg 10meg 20meg 50meg 100meg f(hz -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 db(v) r e =75 w r e =500 w r e =75 w + groundpin between input pins

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