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Rohm BU90LV047A Technical Note

Summary

This high-performance LVDS Interface IC acts as an essential serializer and deserializer for reliable, high-speed data transmission up to 250MHz. Featuring ultra-low EMI characteristics and compatible with industry standards, it significantly simplifies system design by reducing cable counts across multiple data streams. The manual provides comprehensive technical specifications, including pin diagrams, operating parameters, and applications details. Ideal for various demanding fields such as medical diagnostics, LCD-TV displays, digital signage, and industrial automation equipment requiring stable signal integrity.

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LVDS Interface ICs

4bit LVDS Driver BU90LV047A No.12057EAT02

●Description LVDS Interface IC of ROHM "Serializer" "Deserializer" operate from 8MHz to 150MHz wide clock range, and number of bits range is from 35 to 70. Data is transmitted seven times (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. 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 decoders, instruments, and medical equipment.

●Features 1) >500 Mbps (250 MHz) switching rates 2) Flow-through pinout simplifies PCB layout. 3) 300 ps typical differential skew 4) 400 ps maximum differential skew 5) 2.8 ns maximum propagation delay 6) 3.3V power supply design 7) ±200m V and ±350m V Selectable differential signaling 8) Interoperable with existing 5V LVDS receivers 9) High impedance on LVDS outputs on power down 10) Conforms to TIA/EIA-644 LVDS Standard 11) 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. ■This document may be used as strategic technical data which subjects to COCOM regulations.

www.rohm.com 2011.12 - Rev.A

© 2011 ROHM Co., Ltd. All rights reserved.

Page Summary Contents For Rohm BU90LV047A Technical Note

Page 1 LVDS Interface ICs 4bit LVDS Driver BU90LV047A No.12057EAT02 ●Description LVDS Interface IC of ROHM "Serializer" "Deserializer" operate from 8MHz to 150MHz wide clock range, and nu...
Page 2 BU90LV047A Technical Note ●Block Diagram DOUT1+ DIN1 D1 DOUT1- DOUT2+ DIN2 D2 DOUT2- DOUT3+ DIN3 D3 DOUT3- DOUT4+ DIN4 D4 DOUT4- Fig.1. Block Diagram www.rohm.com 2011.12 - Rev.A © 2011 ROHM Co., Ltd....
Page 3 BU90LV047A Technical Note ●SSOP-B16 Package Outline and Specification Product No. LV47A Lot No. 1PIN MARK 0. 3M IN (UNIT:mm) Fig.2. SSOP-B16 Package Outline and Specification www.rohm.com 2011.12 - Re...
Page 4 BU90LV047A Technical Note ●Pin Configuration EN DOUT1-16 DIN1 DOUT1+15 DIN2 DOUT2+14 VCC DOUT2-13 GND DOUT3-12 DIN3 DOUT3+11 DIN4 DOUT4+10 SL DOUT4-9 Fig.3. Pin Diagram (Top View) www.rohm.com 2011.12...
Page 5 BU90LV047A Technical Note ●Pin Description Table 1 : Pin Description Pin Name Pin No. Type Descriptions DIN 2, 3, 6, 7 LVCMOS In Driver input pin, LVCMOS compatible DOUT+ 10, 11, 14, 15 LVDS Out Non-i...
Page 6 BU90LV047A Technical Note ●Absolute Maximum Ratings Value Item Symbol Unit Min. Max. Supply voltage VCC -0.3 4.0 V Input voltage VIN -0.3 VCC+0.3 V Output voltage VOUT -0.3 VCC+0.3 V Storage temperatu...
Page 7 BU90LV047A Technical Note ●DC Characteristics Parameter Symbol Conditions Pin Min Typ Max Units Differential Output Voltage VOD1 250 350 450 m V Output High Voltage VOH1 - 1.42 1.6 V SL= GND, RL = 100...
Page 8 BU90LV047A Technical Note ●Switching Characteristics VCC = +3.3V ±0.3V, Topr = -40℃ to +85℃ Parameter Symbol Conditions Min Typ Max Units Differential Propagation Delay 0.5 1.7 2.8 ns High to Low t PH...
Page 9 BU90LV047A Technical Note DOUT+ Generator RL 50Ω DOUT- Driver ENABLED Fig.5. Driver Propagation Delay and Transition Time Test Circuit DIN 1.5V 1.5V tPLHD tPHLD DOUT- VOH 0V(Differential) 0V DOUT+ VOL...
Page 10 BU90LV047A Technical Note Parameter Measurement Information (Continued) WHEN SL = L or Open tPHZ tPZH DOUT+ WHEN DIN = Vcc DOUT- WHEN DIN = GND DOUT+ WHEN DIN = GND 50%50% DOUT- WHEN DIN = Vcc tPLZ tP...
Page 11 BU90LV047A Technical Note ●Ordering part number Part No. Part No. 90LV047A (Package: SSOP-B16) Packaging and forming specification E2: Embossed tape and reel SSOP-B16 .3 in <Tape and Reel informati...
Page 12 Notice No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without not...

Manual Details

Brand ROHM
Pages 12
File Size 275.09 KB
Published June 02, 2026
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Frequently Asked Questions

How is the differential signal swing level controlled?

The Swing Level (SL) pin controls it: High reduces the swing to 200mV, while low or open maintains a normal 350mV swing.

What voltage standard must be used for operation?

This IC uses a 3.3V power supply and is specified as being interoperable with existing 5V LVDS receivers.

When is the driver functionally enabled or disabled?

The driver is enabled when the Enable pin (EN) is high, and it is disabled when EN is low or open.