LMH0002 LMH0002 SMPTE 292M / 259M Serial Digital Cable Driver Literature Number: SNLS215D LMH0002 SMPTE 292M / 259M Serial Digital Cable Driver General Description Features The LMH0002 SMPTE 292M / 259M serial digital cable driver is a monolithic, high-speed cable driver designed for use in SMPTE 292M / 259M serial digital video and ITU-T G.703 serial digital data transmission applications. The LMH0002 drives 75 transmission lines (Belden 8281, Belden 1694A or equivalent) at data rates up to 1.485 Gbps. The LMH0002 provides two selectable slew rates for SMPTE 259M and SMPTE 292M compliance. The output voltage swing is adjustable via a single external resistor. The LMH0002 is powered from a single 3.3V supply. Power consumption is typically 125 mW in SD mode and 149 mW in HD mode. The LMH0002 is available in an 8-pin SOIC or 16pin LLP package. SMPTE 292M, SMPTE 344M and SMPTE 259M compliant Supports DVB-ASI at 270 Mbps Data rates to 1.485 Gbps Differential input 75 differential output Selectable slew rate Adjustable output amplitude Single 3.3V supply operation Operating temperature range: Commercial 0C to +70C (LMH0002MA) or Industrial -40C to +85C (LMH0002TMA and LMH0002SQ) Typical power consumption: 125 mW in SD mode and 149 mW in HD mode 8-pin SOIC or 16-pin LLP package Replaces the GS1528, GS1528A, or GS1578A. Applications SMPTE 292M, SMPTE 344M, and SMPTE 259M serial digital interfaces Sonet/SDH and ATM interfaces Digital routers and switches Distribution amplifiers Buffer applications Set top boxes Security cameras Typical Application 20176102 (c) 2008 National Semiconductor Corporation 201761 www.national.com LMH0002 SMPTE 292M / 259M Serial Digital Cable Driver August 1, 2008 LMH0002 ESD Rating (HBM) ESD Rating (MM) Absolute Maximum Ratings (Note 1) Supply Voltage: Input Voltage (all inputs) Output Current Storage Temperature Range Junction Temperature Lead Temperature (Soldering 4 Sec) Package Thermal Resistance JA 8-pin SOIC JA 16-pin LLP JC 8-pin SOIC JC 16-pin LLP -0.5V to 3.6V -0.3V to VCC+0.3V 28 mA -65C to +150C +150C 5kV 250V Recommended Operating Conditions Supply Voltage (VCC - VEE): Operating Free Air Temperature (TA) LMH0002MA LMH0002TMA, LMH0002SQ +260C 3.3V 5% 0C to +70C -40C to +85C +160C/W +78.9C/W +105C/W +42.7C/W DC Electrical Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified (Notes 2, 3). Symbol Parameter VCMIN Input Common Mode Voltage VSDI Input Voltage Swing VCMOUT Output Common Mode Voltage VSDO Output Voltage Swing Conditions Reference SDI, SDI Differential Typ 1.6 + VSDI/2 100 SDO, SDO Single-ended, 75 load,RREF = 750 1% Single-ended, 75 load,RREF = 590 1% SD/HD Input Voltage Min Min for SD SD/HD V 2000 mVP-P V 750 800 850 mVP-P 900 1000 1100 mVP-P 2.4 V 0.8 SD/HD Input Current Supply Current Units VCC - VSDO Max for HD ICC Max VCC - VSDI/2 3.7 V A SD/HD = 0, (Note 5) 45 49 mA SD/HD = 1, (Note 5) 38 43 mA Typ Max Units 1485 Mbps AC Electrical Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified (Note 3). Symbol Parameter Conditions Reference DRSDI Input Data Rate (Note 4) SDI, SDI tjit Additive Jitter 1.485 Gbps SDO, SDO tr,tf Output Rise Time, Fall Time Min 26 psP-P 270 Mbps 18 psP-P SD/HD = 0, 20% - 80%, (Note 6) 120 220 ps 560 800 ps SD/HD = 1, 20% - 80% 400 Mismatch in Rise/Fall Time (Note 4) 30 ps Duty Cycle Distortion SD/HD = 0, (Note 4) 30 ps SD/HD = 1, (Note 4) 100 ps tOS Output Overshoot (Note 4) RLSDO Output Return Loss (Note 7) 8 15 20 % dB Note 1: "Absolute Maximum Ratings" are those parameter values beyond which the life and operation of the device cannot be guaranteed. The stating herein of these maximums shall not be construed to imply that the device can or should be operated at or beyond these values. The table of "Electrical Characteristics" specifies acceptable device operating conditions. Note 2: Current flow into device pins is defined as positive. Current flow out of device pins is defined as negative. All voltages are stated referenced to VEE = 0 Volts. Note 3: Typical values are stated for VCC = +3.3V and TA = +25C. Note 4: Specification is guaranteed by characterization. www.national.com 2 Note 6: Specification is guaranteed by characterization and verified by test. Note 7: Output return loss is dependent on board design. The LMH0002 meets this specification on the SD002 evaluation board from 5MHz to 1.5GHz. Connection Diagrams 20176101 8-Pin SOIC Order Number LMH0002MA or LMH0002TMA See NS Package Number M08A 20176105 16-Pin LLP Order Number LMH0002SQ See NS Package Number SQB16A Pin Descriptions SOIC Pin # LLP Pin # 1 1 SDI Serial data true input. 2 2 SDI Serial data complement input. 3 3 VEE Negative power supply (ground). 4 4 RREF Output driver level control. Connect a resistor to VCC to set output voltage swing. 5 9 VCC Positive power supply (+3.3V). 6 10 SD/HD Output slew rate control. Output rise/fall time complies with SMPTE 292M when low and SMPTE 259M when high. 7 11 SDO Serial data complement output. 12 SDO Serial data true output. 8 -- -- Name 5, 6, 7, 8, NC 13, 14, 15, 16 DAP VEE Description No connect. Connect exposed DAP to negative power supply (ground). 3 www.national.com LMH0002 Note 5: Maximum ICC is measured at VCC = +3.465V and TA = +70C. LMH0002 OUTPUT INTERFACING The LMH0002 uses current mode outputs. Single-ended output levels are 800 mVP-P into 75 AC-coupled coaxial cable (with RREF = 750). Output level is controlled by the value of the RREF resistor connected between the RREF pin and VCC. The RREF resistor should be placed as close as possible to the RREF pin. In addition, the copper in the plane layers below the RREF network should be removed to minimize parasitic capacitance. Device Operation INPUT INTERFACING The LMH0002 accepts either differential or single-ended input. The inputs are self-biased, allowing for simple AC or DC coupling. DC-coupled inputs must be kept within the specified common-mode range. SDI and SDI are self-biased at approximately 2.1V with VCC = 3.3V. Figure 1 shows the differential input stage for SDI and SDI. OUTPUT SLEW RATE CONTROL The LMH0002 output rise and fall times are selectable for either SMPTE 259M or SMPTE 292M compliance via the SD/ HD pin. For slower rise and fall times, or SMPTE 259M compliance, SD/HD is set high. For faster rise and fall times, or SMPTE 292M compliance, SD/HD is set low. REPLACING THE GENNUM GS1528, GS1528A, and GS1578A The LMH0002MA is form-fit-function compatible with the Gennum GS1528 and GS1528A. The LMH0002SQ is formfit-function compatible with the Gennum GS1578A. 20176104 FIGURE 1. Differential Input Stage for SDI and SDI. www.national.com 4 LMH0002 Physical Dimensions inches (millimeters) unless otherwise noted 8-Pin SOIC Order Number LMH0002MA or LMH0002TMA NS Package Number M08A 16-Pin LLP Order Number LMH0002SQ NS Package Number SQB16A 5 www.national.com LMH0002 SMPTE 292M / 259M Serial Digital Cable Driver Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Design Support Amplifiers www.national.com/amplifiers WEBENCH www.national.com/webench Audio www.national.com/audio Analog University www.national.com/AU Clock Conditioners www.national.com/timing App Notes www.national.com/appnotes Data Converters www.national.com/adc Distributors www.national.com/contacts Displays www.national.com/displays Green Compliance www.national.com/quality/green Ethernet www.national.com/ethernet Packaging www.national.com/packaging Interface www.national.com/interface Quality and Reliability www.national.com/quality LVDS www.national.com/lvds Reference Designs www.national.com/refdesigns Power Management www.national.com/power Feedback www.national.com/feedback Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www.national.com/led PowerWise www.national.com/powerwise Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors Wireless (PLL/VCO) www.national.com/wireless THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION ("NATIONAL") PRODUCTS. NATIONAL MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS PUBLICATION AND RESERVES THE RIGHT TO MAKE CHANGES TO SPECIFICATIONS AND PRODUCT DESCRIPTIONS AT ANY TIME WITHOUT NOTICE. NO LICENSE, WHETHER EXPRESS, IMPLIED, ARISING BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. TESTING AND OTHER QUALITY CONTROLS ARE USED TO THE EXTENT NATIONAL DEEMS NECESSARY TO SUPPORT NATIONAL'S PRODUCT WARRANTY. EXCEPT WHERE MANDATED BY GOVERNMENT REQUIREMENTS, TESTING OF ALL PARAMETERS OF EACH PRODUCT IS NOT NECESSARILY PERFORMED. NATIONAL ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR BUYER PRODUCT DESIGN. BUYERS ARE RESPONSIBLE FOR THEIR PRODUCTS AND APPLICATIONS USING NATIONAL COMPONENTS. PRIOR TO USING OR DISTRIBUTING ANY PRODUCTS THAT INCLUDE NATIONAL COMPONENTS, BUYERS SHOULD PROVIDE ADEQUATE DESIGN, TESTING AND OPERATING SAFEGUARDS. EXCEPT AS PROVIDED IN NATIONAL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, NATIONAL ASSUMES NO LIABILITY WHATSOEVER, AND NATIONAL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO THE SALE AND/OR USE OF NATIONAL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. LIFE SUPPORT POLICY NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. Copyright(c) 2008 National Semiconductor Corporation For the most current product information visit us at www.national.com National Semiconductor Americas Technical Support Center Email: support@nsc.com Tel: 1-800-272-9959 www.national.com National Semiconductor Europe Technical Support Center Email: europe.support@nsc.com German Tel: +49 (0) 180 5010 771 English Tel: +44 (0) 870 850 4288 National Semiconductor Asia Pacific Technical Support Center Email: ap.support@nsc.com National Semiconductor Japan Technical Support Center Email: jpn.feedback@nsc.com IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI's terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Applications Audio www.ti.com/audio Communications and Telecom www.ti.com/communications Amplifiers amplifier.ti.com Computers and Peripherals www.ti.com/computers Data Converters dataconverter.ti.com Consumer Electronics www.ti.com/consumer-apps DLP(R) Products www.dlp.com Energy and Lighting www.ti.com/energy DSP dsp.ti.com Industrial www.ti.com/industrial Clocks and Timers www.ti.com/clocks Medical www.ti.com/medical Interface interface.ti.com Security www.ti.com/security Logic logic.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense Power Mgmt power.ti.com Transportation and Automotive www.ti.com/automotive Microcontrollers microcontroller.ti.com Video and Imaging RFID www.ti-rfid.com OMAP Mobile Processors www.ti.com/omap Wireless Connectivity www.ti.com/wirelessconnectivity TI E2E Community Home Page www.ti.com/video e2e.ti.com Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright (c) 2011, Texas Instruments Incorporated