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1/13 www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. lvds interface ics 4bit lvds transceiver BU90LV049A description lvds interface ic of rohm "serializer" "deserializer" o perate from 8mhz to 150mhz wide clock range, and number of bits range is from 35 to 70. data is transmitted seven times (7 x) stream and reduce cable number by 3(1/3) or less. the rohm's lvds has low swing mode to be able to expect further low emi. driver and receiver of 4 bits operate to 250mhz. it can be used for a variety of purposes, home appliances such as lcd-tv, business machines such as decod ers, instruments, and medical equipment. features 1) >500 mbps (250 mhz) switching rates 2) flow-through pinout simplifies pcb layout. 3) 400 ps typical driver channel-to-channel skew 4) 150 ps typical receiver channel-to-channel skew 5) 3.3v single power supply design 6) 200mv and 350mv selectable differential signaling (driver) 7) 6ma and 8ma selectable out put drive strength (receiver) 8) 3-state output control 9) internal fail-safe biasing of receiver inputs 10) high impedance on lvds outputs on power down 11) conforms to tia/eia-644-a lvds standard 12) industrial operating temperature range (-40 to +85 ) applications car navigation system copier digital tv (signal system) fa equipment medical equipment vending machine, ticket vending machine precaution this chip is not designed to protect from radioactivity. no.09057eat01
technical note 2/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. absolute maximum ratings item symbol v alue unit min. max. supply voltage v cc -0.3 4.0 v v v package power package pd(mw) derating(mw/ ) 1 ssop-b16 400 4.0 450 *2 4.5 *2 1 at temperature ta > 25 2 package power when mount ing on the pcb board. the size of pcb board :70 701.6 mm 3 the material of pcb board :the fr 4 glass epoxy board.(3% or les s copper foil area) operating conditions cc
technical note 3/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. electrical characteristics symbol parameter conditions pin min typ max units lvcmos input dc specification (d river inputs, enable pins) v ih input high voltage d in en sl v cc 0.8 - v cc v v il input low voltage gnd - v cc 0.2 v i i input current v in = 0v or v cc -10 - +10 a v cl input clamp voltage v cl = -18ma -1.5 -0.8 - v lvds output dc specification (driver output) |v od1 | differential output voltage sl= gnd , r l = 100 (figure 4) d out- d out+ 250 350 450 mv |v od2 | differential output voltage sl= v cc , r l = 100 (figure 4) 120 200 300 mv v od change in magnitude of v od for complementary output states sl = v cc or gnd, r l = 100 (figure 4) - 1 35 |mv| v os offset voltage 1.125 1.25 1.375 v v os change in magnitude of vos for complementary output states - 1 25 |mv| i os output short circuit current enabled, d in = v cc , d out+ = 0v or d in = gnd, d out- = 0v - -5.4 -9.0 ma i osd differential output short circuit current enabled, v od = 0v - -5.4 -9.0 ma i oz output 3-state current en = 0v and sl = v cc v out = 0v or v cc -10 1 +10 a lvds input dc specification (receiver inputs) v th differential input high threshold v cm = 1.2v, 0.05v, 2.35v r in+ r in- - - 100 mv v tl differential input low threshold -100 - - mv v cmr common-mode voltage range v id = 200mv pk to pk 0.1 - 2.3 v i in input current v in = 0 or vcc -20 - +20 a lvcmos output dc specification (receiver outputs) v oh1 output high voltage i oh = ?8 ma, v id = +200 mv, sl=gnd r out v cc - 0.4 - - v v oh2 output high voltage i oh = ?6 ma, v id = +200 mv, sl = v cc v cc - 0.4 - - v ol1 output low voltage i ol = 8 ma, v id = ?200 mv, sl=gnd - - 0.4 v v ol2 output low voltage i ol = 6 ma, v id = ?200 mv, sl = v cc - - 0.4 i oz output 3-state current disabled, v out = 0v or v cc -10 1 +10 a general dc specifications i cc power supply current en = vcc and sl = 0v v cc - 12 - ma i ccz tri-state supply current en = 0v and sl = 0v - 2 - ma
technical note 4/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. switching characteristics symbol parameter conditions min typ max units lvds outputs (driver outputs) t phld differential propagation delay high to low r l = 100, c l = 15pf 0.5 1.7 2.8 ns t plhd differential propagation delay lo w to high (figure 5 and figur e 6) 0.5 1.7 2.8 ns t skd1 differential pulse skew |t phld C t plhd | 0 0.3 0.4 ns t skd2 differential channel-to-channel skew 0 0.4 0.5 ns t skd3 differential part to part skew 0 - 1.0 ns t tlh rise time - 0.5 1.5 ns t thl fall time - 0.5 1.5 ns t phz disable time high to z r l = 100, c l = 15pf - 2 5 ns t plz disable time low to z (figure 7 and figure8) - 2 5 ns t pzh enable time z to high - 3 7 ns t pzl enable time z to low - 3 7 ns f max maximum operating frequency 250 - - mhz lvcmos outputs (receiver outputs) t phl propagation delay high to low c l = 15pf v id = 200mv 1.2 2.0 3.7 ns t plh propagation delay low to high ( figure 9 and figure 10) 1.2 1.9 3.7 ns t sk1 pulse skew |t phld C t plhd | 0 0.1 0.4 ns t sk2 channel-to-channel skew 0 0.15 0.5 ns t sk3 part to part skew - - 1.0 ns t tlh rise time - 0.5 1.5 ns t thl fall time - 0.5 1.5 ns t phz disable time high to z r l = 2k - 8 14 ns t plz disable time low to z c l = 15pf - 8 14 ns t pzh enable time z to high (figure 11 and figure 12) - 3 14 ns t pzl enable time z to low - 9 14 ns f max maximum operating frequency 250 - - mhz
technical note 5/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. block diagram r1 r out1 r in 1- r in 1+ r2 r out2 r in 2+ r in 2- d2 d out2- d out2+ d in 2 d1 d out1- d out1+ d in 1 en sl figure 1. block diagram
technical note 6/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. ssop-b16 package outline and specification figure 2. ssop-b16 packag e outline and specification 5.0 0.2 product no. min lv49a lot no. 1pin mark
technical note 7/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. figure 3. pin diagram (top view) pin description table 1 : pin description pin name pin no. type descriptions din 10, 11 6, 7 5, 8 2, 3 1, 4 14, 15 12 13 16 15 14 13 12 11 d in1 10 sl 9 r in1- 1 2 3 4 5 6 7 8 r in1+ r in2+ r in2- d out2- d out2+ d out1+ d out1- d in2 vcc gnd r out2 r out1 en
technical note 8/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. function description ? ? ??? ? ? ? ?? ? ? ?
technical note 9/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. parameter measurement information figure 4. driver vod and vos test circuit d d in d out + d out - driver enabled generator rl cl cl 50 figure 5. driver propagation de lay and transition time test ci rcuit figure 6. driver propagation de lay and transition time wavefor ms d v cc gnd s1 d in v os rl/2 d out + d out - v od rl/2 driver enabled d in d out - d out + v diff 1.5v plhd 0vdifferential) 80 0v 20 tlh 80 0v 20 thl 0v 1.5v phld 3v 0v v oh v ol v diff = d out + - d out -
technical note 10/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. d d out + d out - 1/ 4 BU90LV049A generator cl cl 50 o 50 o 50 o +1.2v d in v cc gnd en ( driver) figure 7. driver 3-state delay test circuit 1.5v phz 1.5v pzh 3v 0v 50 1.2v v oh 1.2v v ol 50 plz pzl 50 50 d out + when d in = vcc d out -when d in = gnd d out + when d in = gnd d out - when d in = vcc en when sl = l or open figure 8. driver 3-state delay waveform
technical note 11/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. r r in+ receiver enabled generator 50 r in- cl r out 50 figure 9. receiver propagation de lay and transition time test circuit r in - r in + r out 0v differential 80 1.5v 20 tlh 80 1.5v 20 thl +1.2v +1.3v +1.1v plhd phld v oh v ol v id = 200mv figure 10. receiver propagation delay and transition time wave forms 1/ 4 BU90LV049A generator cl 50 o en device under test r out rl r in+ r in- v cc s 1 (receiver) figure 11. receiver 3-state delay test circuit
technical note 12/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. 1.5v phz 1.5v pzh 3v 0v 50 v ol 0.5v plz pzl 50 en when sl = l or open output when v id = -100mv output when v id = +100mv v oh gnd v cc 0.5v figure12. receiver 3-state delay waveforms typical application lvds receiver rt 100 data output enable data input lvds driver figure 13. point-to-point application d in d out - d out + v od 0v(diff.) 0v 3v 0v v oh v ol single-ended v os (1.25v typical) d out + - d out - differential output +vod -vod +v ss figure 14. driver output levels
technical note 13/13 BU90LV049A www.rohm.com 2009.05 - rev.a ? 2009 rohm co., ltd. all rights reserved. ordering part number b u 9 0 l v 0 4 9 a - e 2 part no. part no. packaging and forming specification e2: embossed tape and reel (unit : mm) ssop-b16 4.40.2 6.40.3 1.150.1 9 8 16 1 0.10 0.65 0.3min. 5.00.2 0.220.1 0.150.1 0.1 ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed the direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand 2500pcs e2 () direction of feed reel 1pin
r0039 a www.rohm.com ? 2009 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redundancy, re control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law.

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