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1/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. lvds interface ics 35bit lvds receiver 5:35 deserializer BU90R104 description lvds interface ic of rohm "serializer" "deserializer" op erates from 8mhz to 150mhz wide clock range, and number of bits range is from 35 to 70. data is transmitted seven time s (7x) 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. features 1) five channels of lvds data stream are converted to 35bits data of parallel lvcmos level outputs. 2) 30bits of rgb output data, 5bits of timing and c ontrol output data(hsync, vsync, de, ctl1 and ctl2) are transmitted available. 3) support clock frequency from 8mhz up to 112mhz. 4) support consumer video format including 480i, 480p, 720p and 1080i as well. 5) support many kinds of pc video fo rmats such as vga, svga, xga and sxga. 6) provide 784mbps per 1ch or 3.92gbps per device throughput rate using 112mhz clock rate. 7) user programmable lvcmos data output triggering timi ng by using either rising or falling edge of clock. 8) 30bit lvds transmitter is recommended to use bu8254kvt. applications flat panel display absolute maximum ratings parameter symbol ratings unit min. max. supply voltage v dd -0.3 4.0 v input voltage v in -0.3 v dd +0.3 v output voltage v out -0.3 v dd +0.3 v storage temperature range tstg -55 125 package power package pd(mw) derating(mw/ ) *1 tqfp64v 700 7.0 1000 *2 10.0 *2 *1 at temperature ta > 25 *2 package power when mounting on the pcb board. the size of pcb board :70 70 1.6(mm 3 ) the material of pcb board :the fr4 glass epoxy board.(3% or less copper foil area) recommended operating conditions parameter symbol ratings unit condition min. typ. max. supply voltage v dd 3.0 3.3 3.6 v vdd, lvdd, pvdd supply noise voltage v noz - - 0.1 v operating temperat ure range topr -20 - 85 clock frequency from 8mhz up to 90mhz 0 - 70 clock frequency from 90mhz up to 112mhz no.11057eat09
technical note 2/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 block diagram fig.1 block diagram lvcmos output sampling clocks pll rclk +/ (8 112mhz) clkout ra +/ reserve pd oe r/f lvds differential input ra6-ra0 7 + + rb +/ rb6-rb0 7 + rc +/ rc6-rc0 7 + rd +/ rd6-rd0 7 + re +/ re6-re0 7 + 7 serial to parallel serial to parallel serial to parallel serial to parallel serial to parallel lvcmos input
technical note 3/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 BU90R104 lot no. 1pin mark (unit : mm) product no. tqfp64v package specification fig.2 tqfp64v package
technical note 4/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 vdd ra1 ra0 ra2 gnd ra3 ra4 ra5 ra6 rb0 rb1 vdd rb2 rb3 rb4 rb5 rb6 clkout gnd rc0 rc1 rc2 rc3 rc4 rc5 vdd rc6 rd0 rd1 rd2 rd3 rd4 gnd reserve pd oe r/f re6 re5 re4 vdd re3 re2 re1 re0 rd6 rd5 gnd ra- pvdd 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ra+ rb- rb+ pgnd rd- rd+ re- re+ lgnd rclk+ rclk- rc- rc+ lvdd 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 pin diagram fig.3 pin diagram (top view)
technical note 5/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 pin description pin name pin no. i/o description ra+, ra- 50,49 lvds input lvds data input + : positive input of lvds data differential pair. - : negative input of lvds data differential pair. rb+, rb- 52,51 lvds input rc+, rc- 55,54 lvds input rd+, rd- 60,59 lvds input re+, re- 62,61 lvds input rclk+, rclk- 57,56 lvds input lvds clock input ra6 ra0 40,41,42,43, 45,46,47 output lvcmos data outputs. rb6 rb0 32,33,34,35, 36,38,39 output rc6 rc0 22,24,25,26, 27,28,29 output rd6 rd0 14,15,17,18, 19,20,21 output re6 re0 6,7,8,10, 11,12,13 output reserve 2 input reserved input must be ?low? for normal operation. pd 3 input power down input for the internal system. h : normal operation. l : power down (all output are ?low?). oe 4 input power down input for the data output driver. h : output enable (normal operation). l : output disable (all outputs are ?hi-z?). r/f 5 input select input pin for data output clock triggering edge. h : output data is latched on rising edge. l : output data is latched on falling edge. vdd 9,23,37,48 power 3.3v output driver and digital core power supply pin. clkout 31 output lvcmos level clock output. gnd 1,16,30,44 ground gnd pin for both data out put driver cells and the digital cores. lvdd 53 power power supply pin for lvds inputs. lgnd 58 ground ground pin for lvds inputs. pvdd 64 power power supply pin for pll core. pgnd 63 ground ground pin for pll core.
technical note 6/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 function description pd r/f oe data output (rxn) *1 clock output 0 0 0 hi-z hi-z 0 0 1 all fixed low fixed low 0 1 0 hi-z hi-z 0 1 1 all fixed low fixed low 1 0 0 hi-z hi-z 1 0 1 data output output data is latched by falling edge of clock. 1 1 0 hi-z hi-z 1 1 1 data output output data is latched by rising edge of clock *1 : rxn x = a,b,c,d,e n = 0,1,2,3,4,5,6
technical note 7/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 electrical characteristics dc characteristics lvcmos dc character (v dd =3.0v 3.6v, ta=-20 85 ) parameter symbol limits unit conditions min. typ. max. high input voltage v ih v dd 0.8 - v dd v low input voltage v il 0.0 - v dd 0.2 v high output voltage v oh v dd -0.5 - v dd v i oh =-4ma (data) i oh =-8ma (clock) low output voltage v ol 0.0 - 0.4 v i ol =4ma (data) i ol =8ma (clock) input current i inc - - 10 a 0v Q v in Q v dd lvds receiver dc character (v dd =3.0v 3.6v, ta=-20 85 ) parameter symbol limits unit conditions min. typ. max. differential input high threshold vth - - 100 mv v oc *1 =1.2v differential input low threshold vtl -100 - - mv v oc *1 =1.2v input current iinl - - 25 a v in =2.4v / 0v v dd =3.6v *1 common mode voltage
technical note 8/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 supply current supply current parameter symbol limits unit conditions min. max. receiver supply current (gray scale pattern) i rccg 52 - ma fclkout=90mhz c l =8pf, v dd =3.3v receiver supply current (worst case pattern) i rccw 95 - ma fclkout=90mhz c l =8pf, v dd =3.3v receiver power down supply current i rccs - 10 a pd=l, oe=l gray scale pattern fig.4 gray scale pattern worst case pattern (maxi mum power condition) fig.5 worst case pattern clkout rx0 rx1 rx2 rx3 rx4 rx5 rx6 x=a,b,c,d,e clkout rx0 rx2 rx3 rx4 rx5 rx6 rx1 x=a,b,c,d,e
technical note 9/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 ac characteristics switching characteristics parameter symbol limits unit min. typ. max. clkout period t rcp 8.93 - 125 ns clkout "h" time t rch - 0.5t rcp -1.0 - ns clkout "l" time t rcl - 0.5t rcp -1.0 - ns lvcmos data setup to clkout t rs 0.5t rcp -1.4 - - ns lvcmos data hold from clkout t rh 0.23t rcp -1.0 - - ns lvcmos data rise time t tlh - 1.0 2.0 ns lvcmos data fall time t thl - 1.0 2.0 ns input data position 0 t rip1 -0.25 0.0 +0.25 ns input data position 1 t rip0 7 t rcip -0.25 7 t rcip 7 t rcip +0.25 ns input data position 2 t rip6 2 7 t rcip -0.25 2 7 t rcip 2 7 t rcip +0.25 ns input data position 3 t rip5 3 7 t rcip -0.25 3 7 t rcip 3 7 t rcip +0.25 ns input data position 4 t rip4 4 7 t rcip -0.25 4 7 t rcip 4 7 t rcip +0.25 ns input data position 5 t rip3 5 7 t rcip -0.25 5 7 t rcip 5 7 t rcip +0.25 ns input data position 6 t rip2 6 7 t rcip -0.25 6 7 t rcip 6 7 t rcip +0.25 ns phase locked loop set time t rpll - - 10.0 ms clock input period t rcip 8.93 - 125 ns
technical note 10/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 ac timing diagrams lvcmos fig.6 lvcmos output timing phase-locked loop set time fig.7 phase-locked loop set time c l =8pf lvcmos output load lvcmos output 80% 20% 80% 20% t tlh t thl rxn v dd /2 v dd /2 v dd /2 v dd /2 t rcp t rch t rcl v dd /2 t rs t rh clkout v dd /2 r/f=h r/f=l x=a,b,c,d,e n=0,1,2,3,4,5,6 3.0v t rpll v dd rclk +/- clkout pd v dd /2 v dd /2
technical note 11/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 lvds data, clock input timing fig.8 lvds data and clock input timing next cycle previous cycle current cycle rclk + (differential) t rcip vdiff=0v v diff =0v ra+/- ra1 ra0 ra6 ra5 ra4 ra3 ra2 ra1 ra0 ra6 ra2 ra3 rb+/- rb1 rb0 rb6 rb5 rb4 rb3 rb2 rb1 rb0 rb6 rb2 rb3 rc+/- rc1 rc0 rc6 rc5 rc4 rc3 rc2 rc1 rc0 rc6 rc2 rc3 rd+/- rd1 rd0 rd6 rd5 rd4 rd3 rd2 rd1 rd0 rd6 rd2 rd3 re+/- re1 re0 re6 re5 re4 re3 re2 re1 re0 re6 re2 re3
technical note 12/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 lvds data, clock input and lvsmos output timing fig.9 lvds data, clock input and lvcmos output timing ra + / - rclk +/- ra6 lvds input rb + / - rc +/- rd +/- re +/- ra5 ra4 ra3 ra2 ra1 ra0 rb6 rb5 rb4 rb3 rb2 rb1 rb0 rc6 rc5 rc4 rc3 rc2 rc1 rc0 rd6 rd5 rd4 rd3 rd2 rd1 rd0 re6 re5 re4 re3 re2 re1 re0 re0 6 valid lvcmos output valid valid valid valid valid valid valid valid valid clkout ra0 6 clkout rb0 6 rc0 6 (r/f=l) (r/f=h) rd0 6
technical note 13/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 about the power on reset power on reset is not mandatory for this device. (the pd pin should be set to high level when power on reset procedure is not used.) fig.10 terminal connection when power on reset is not used. however, power on reset procedure is strongly recommend fo r internal logic initialization by following two methods. the method of using cr circuit. the method of using external specific ic. it is recommend to do enough examination for target application. fig.11 power on reset by external a cr circuit fig.12 power on reset by specific ic BU90R104 pd v dd td is approximately equal to 20ms when the left rc coleus are applied. td v dd internal reset 2.2f pd pd 10k ? 220 ? schottky barrier diode be careful of temperature ofthe capacitor especially over and again. b characteristic ceramics and func tion polymer aluminum electrolysis are recommended. v t+ v dd v dd b characteristic ceramics. pd v dd vout power on ic (open drainoutput) gnd 220k ? 0.1 f detection voltage v dd internal reset pd td v t+ v dd v dd
technical note 14/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 10 lvds level input & output example: bu8254kvt : lvcmos level input/falling edge/lvds normal(350mv) swing output BU90R104 : lvcmos level output/falling edge *1: recommended parts: f.bead : blm18a-series (murata manufacturing co.) *2 : if rs pin is tied to v dd , lvds swing is 350 mv. if rs pin is tied to gnd, lvds swing is 200 mv. fig.13 vdd gnd 0.1uf lvds vdd 0.01uf 0.1uf 0.01uf clkin v dd f.bead clkin bu8254kvt ta0 r4 ta1 r5 ta2 r6 ta3 r7 ta4 r8 ta5 r9 ta6 g4 tb0 g5 tb1 g6 tb2 g7 tb3 g8 tb4 g9 tb5 b4 tb6 b5 tc0 b6 tc1 b7 tc2 b8 tc3 b9 tc4 hsync tc5 vsync tc6 de td0 r2 td1 r3 td2 g2 td3 g3 td4 b2 td5 b3 td6 te0 r0 te1 r1 te2 g0 te3 g1 te4 b0 te5 b1 te6 xrst xrst v dd rs r/f *2 lvds gnd pll vdd pll gnd 0.1uf 0.01uf tan tap tbn tbp tcn tcp tclkn tclkp tdn tdp ten tep pcb(transmitter) pcb(receiver) 100 100 100 100 100 100 ra- ra+ rb- rb+ rc- rc+ rclk- rclk+ rd- rd + re- re+ 100 twist pair cable or pcb trace 0.1uf 0.01uf 0.1uf 0.01uf lvdd lgnd pvdd pgnd f.bead b90r104 vdd gnd 0.1uf 0.01uf v dd clkout r4 r5 r6 r7 r8 r9 g4 g5 g6 g7 g8 g9 b4 b5 b6 b7 b8 b9 hsync vsync de r2 r3 g2 g3 b2 b3 r0 r1 g0 g1 b0 b1 clkout ra0 ra1 ra2 ra3 ra4 ra5 ra6 rb0 rb1 rb2 rb3 rb4 rb5 rb6 rc0 rc1 rc2 rc3 rc4 rc5 rc6 rd0 rd1 rd2 rd3 rd4 rd5 rd6 re0 re1 re2 re3 re4 re5 re6 pd dk r/f open open pd oe oe 0.1uf *1 *1
technical note 15/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 10bit small swing input & lvcmos level output example: bu8254kvt : lvcmos level input/falling edge/lvds normal(350mv) swing output BU90R104 : lvcmos level output/falling edge *3 recommended parts: f.bead : blm18a-series (murata manufacturing co.) *4 : rs pin acts as vref input pin when input voltage is set to half of high level signal input. we recommend to locate by-pass condenser near the rs pin. example for lvttl(1.8v input):(r1,r2)=(15k ,5.6k ) fig.14 vdd gnd 0.1uf lvds vdd 0.01uf 0.1uf 0.01uf clkin v dd f.bead clkin bu8254kvt ta0 r4 ta1 r5 ta2 r6 ta3 r7 ta4 r8 ta5 r9 ta6 g4 tb0 g5 tb1 g6 tb2 g7 tb3 g8 tb4 g9 tb5 b4 tb6 b5 tc0 b6 tc1 b7 tc2 b8 tc3 b9 tc4 hsync tc5 vsync tc6 de td0 r2 td1 r3 td2 g2 td3 g3 td4 b2 td5 b3 td6 te0 r0 te1 r1 te2 g0 te3 g1 te4 b0 te5 b1 te6 xrst xrst *4 rs r/f *4 lvds gnd pll vdd pll gnd 0.1uf 0.01uf tan tap tbn tbp tcn tcp tclkn tclkp tdn tdp ten tep pcb(transmitter) pcb(receiver) 100 100 100 100 100 100 ra- ra+ rb- rb+ rc- rc+ rclk- rclk+ rd- rd+ re- re+ 100 twist pair cable or pcb trace 0.1uf 0.01uf 0.1uf 0.01uf lvdd lgnd pvdd pgnd f.bead BU90R104 vdd gnd 0.1uf 0.01uf v dd clkout r4 r5 r6 r7 r8 r9 g4 g5 g6 g7 g8 g9 b4 b5 b6 b7 b8 b9 hsync vsync de r2 r3 g2 g3 b2 b3 r0 r1 g0 g1 b0 b1 pd clkout ra0 ra1 ra2 ra3 ra4 ra5 ra6 rb0 rb1 rb2 rb3 rb4 rb5 rb6 rc0 rc1 rc2 rc3 rc4 rc5 rc6 rd0 rd1 rd2 rd3 rd4 rd5 rd6 re0 re1 re2 re3 re4 re5 re6 dk r/f open open pd oe oe *3 *3 rs pin. 15k v dd r1 r2 c1=0.1f 5.6k
technical note 16/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 notes for use 1) this chip is not designed to protect from radioactivity. 2) the chip is made strictly for the specific application or equipment. then it is necessary that the unit is measured as need. 3) this document may be used as strategic technical data which subjects to cocom regulations.
technical note 17/17 www.rohm.com 2011.02 - rev. a ? 2011 rohm co., ltd. all rights reserved. BU90R104 ordering part number b u 9 0 r 1 0 4 - e 2 part no. part no. 90r104 package tqfp64v packaging and forming specification e2: embossed tape and reel direction of feed reel ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape (with dry pack) 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 1000pcs e2 () 1pin (unit : mm) tqfp64v 0.1 33 48 16 1 12.0 0.3 10.0 0.2 0.125 0.1 0.5 0.2 0.1 0.1 0.1 1.0 0.1 0.5 49 64 32 17 10.0 0.2 12.0 0.3
r1120 a www.rohm.com ? 2011 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 produc ts. 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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