DS10BR254 www.ti.com SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 DS10BR254 1.5 Gbps 1:4 LVDS Repeater Check for Samples: DS10BR254 FEATURES DESCRIPTION * The DS10BR254 is a 1.5 Gbps 1:4 LVDS repeater optimized for high-speed signal routing and distribution over FR-4 printed circuit board backplanes and balanced cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity. 1 2 * * * * * * DC - 1.5 Gbps Low Jitter, Low Skew, Low Power Operation Wide Input Common Mode Voltage Range Allows for DC-Coupled Interface to LVDS, CML and LVPECL Drivers Redundant Inputs LOS Circuitry Detects Open Inputs Fault Condition Integrated 100 Input and Output Terminations 8 kV ESD on LVDS I/O Pins Protects Adjoining Components Small 6 mm x 6 mm WQFN-40 Space Saving Package APPLICATIONS * * * * Clock Distribution Clock and Data Buffering and Muxing OC-12 / STM-4 SD/HD SDI Routers The device has two different LVDS input channels and a select pin determines which input is active. A loss-of-signal (LOS) circuit monitors both input channels and a unique LOS pin is asserted when no signal is detected at that input. Wide input common mode range allows the switch to accept signals with LVDS, CML and LVPECL levels; the output levels are LVDS. A very small package footprint requires a minimal space on the board while the flow-through pinout allows easy board layout. Each differential input and output is internally terminated with a 100 resistor to lower device return losses, reduce component count and further minimize board space. Typical Application CARD A CARD C ASIC/FPGA 1 ASIC/FPGA ASIC/FPGA 2 DS10BR254 1:4 LVDS Repeater Discrete Serializer CARD B Discrete Deserializer 1 Discrete Deserializer 2 BACKPLANE 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright (c) 2007-2013, Texas Instruments Incorporated DS10BR254 SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 www.ti.com Block Diagram SEL_in PWDNn 4 OUT0+ OUT0IN1+ OUT1+ IN1- OUT1- IN2+ OUT2+ IN2- OUT2OUT3+ OUT3- PWDN Control and LOS Circuitry 2 LOSn NC NC PWDN LOS1 LOS2 PWDN0 PWDN1 PWDN2 PWDN3 NC 40 39 38 37 36 35 34 33 32 31 Connection Diagram NC 1 30 VDD NC 2 29 OUT0+ VDD 3 28 OUT0- IN1+ 4 27 OUT1+ 26 OUT1- 25 VDD DAP IN1- 5 IN2+ 6 IN2- 7 24 OUT2+ VDD 8 23 OUT2- NC 9 22 OUT3+ NC 10 21 OUT3- 11 12 13 14 15 16 17 18 19 20 NC NC NC SEL_in VDD GND NC NC NC NC (GND) Figure 1. DS10BR254 Pin Diagram See Package Number RTA0040A 2 Submit Documentation Feedback Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 DS10BR254 www.ti.com SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 PIN DESCRIPTIONS Pin Name Pin Number IN1+, IN1-, IN2+, IN2-, I/O, Type Pin Description 4, 5, 6, 7, I, LVDS Inverting and non-inverting high speed LVDS input pins. OUT0+, OUT0-, OUT1+, OUT1-, OUT2+, OUT2-, OUT3+, OUT3- 29, 27, 24, 22, O, LVDS Inverting and non-inverting high speed LVDS output pins. SEL_in 14 I, LVCMOS This pin selects which LVDS input is active. LOS1, LOS2 37, 36 O, LVCMOS Loss Of Signal output pins, LOSn report when an open input fault condition is detected at the input, INn. These are open drain outputs. External pull up resistors are required. PWDN0, PWDN1, PWDN2, PWDN3 35, 34 33, 32 I, LVCMOS Channel output power down pin. When the PWDNn is set to L, the channel output OUTn is in the power down mode. PWDN 38 I, LVCMOS Device power down pin. When the PWDN is set to L, the device is in the power down mode. VDD 3, 8, 15,25, 30 Power Power supply pins. GND 16, DAP Power Ground pin and a pad (DAP - die attach pad). NC 1, 2 9, 10, 11, 12, 13, 17, 18, 19, 20, 31, 39, 40 NC NO CONNECT pins. May be left floating. 28, 26, 23, 21 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Submit Documentation Feedback Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 3 DS10BR254 SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 www.ti.com Absolute Maximum Ratings (1) (2) -0.3V to +4V Supply Voltage LVCMOS Input Voltage -0.3V to (VCC + 0.3V) LVCMOS Output Voltage -0.3V to (VCC + 0.3V) -0.3V to +4V LVDS Input Voltage Differential Input Voltage |VID| 1V -0.3V to (VCC + 0.3V) LVDS Output Voltage LVDS Differential Output Voltage 0.0V to +1V LVDS Output Short Circuit Current Duration 5 ms Junction Temperature +150C -65C to +150C Storage Temperature Range Lead Temperature Range Soldering (4 sec.) +260C Maximum Package Power Dissipation at 25C SQA Package 4.65W Package Thermal Resistance JA +26.9C/W JC +3.8C/W ESD Susceptibility HBM (3) 8 kV MM (4) 250V Derate SQA Package 37.2 mW/C above +25C CDM (5) (1) (2) (3) (4) (5) 1250V "Absolute Maximum Ratings" indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in the Recommended Operating Conditions is not implied. The Recommended Operating Conditions indicate conditions at which the device is functional and the device should not be operated beyond such conditions. If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications. Human Body Model, applicable std. JESD22-A114C Machine Model, applicable std. JESD22-A115-A Field Induced Charge Device Model, applicable std. JESD22-C101-C Recommended Operating Conditions Supply Voltage (VCC) Receiver Differential Input Voltage (VID) Operating Free Air Temperature (TA) 4 Min Typ Max Units 3.0 3.3 3.6 V 1 V +85 C 0 -40 Submit Documentation Feedback +25 Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 DS10BR254 www.ti.com SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 Electrical Characteristics Over recommended operating supply and temperature ranges unless otherwise specified. (1) (2) (3) Symbol Parameter Conditions Min Typ Max Units V LVCMOS DC SPECIFICATIONS VIH High Level Input Voltage 2.0 VDD VIL Low Level Input Voltage GND 0.8 V IIH High Level Input Current VIN = 3.6V VCC = 3.6V 0 10 A IIL Low Level Input Current VIN = GND VCC = 3.6V 0 10 A VCL Input Clamp Voltage ICL = -18 mA, VCC = 0V -0.9 -1.5 V VOL Low Level Output Voltage IOL= 4 mA 0.26 0.4 V 1 V +100 mV LVDS INPUT DC SPECIFICATIONS VID Input Differential Voltage 0 VTH Differential Input High Threshold VTL Differential Input Low Threshold VCMR Common Mode Voltage Range VID = 100 mV IIN Input Current VIN = +3.6V or 0V VCC = 3.6V or 0V 1 CIN Input Capacitance Any LVDS Input Pin to GND 1.7 pF RIN Input Termination Resistor Between IN+ and IN- 100 VCM = +0.05V or VCC-0.05V 0 -100 0 0.05 mV VCC 0.05 V 10 A LVDS OUTPUT DC SPECIFICATIONS VOD Differential Output Voltage 250 VOD Change in Magnitude of VOD for Complimentary Output States VOS Offset Voltage VOS Change in Magnitude of VOS for Complimentary Output States IOS Output Short Circuit Current RL = 100 -35 1.05 (4) RL = 100 350 1.2 -35 450 mV 35 mV 1.375 V 35 mV OUT to GND -35 -55 mA OUT to VCC 7 55 mA COUT Output Capacitance Any LVDS Output Pin to GND 1.2 pF ROUT Output Termination Resistor Between OUT+ and OUT- 100 SUPPLY CURRENT ICC Supply Current PWDN = H 113 135 mA ICCZ Power Down Supply Current PWDN = L 50 60 mA (1) (2) (3) (4) The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not ensured. Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground except VOD and VOD. Typical values represent most likely parametric norms for VCC = +3.3V and TA = +25C, and at the Recommended Operation Conditions at the time of product characterization and are not ensured. Output short circuit current (IOS) is specified as magnitude only, minus sign indicates direction only. Submit Documentation Feedback Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 5 DS10BR254 SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 www.ti.com AC Electrical Characteristics Over recommended operating supply and temperature ranges unless otherwise specified. Symbol Parameter Conditions Min Typ Max Units 440 650 ps 400 650 ps LVDS OUTPUT AC SPECIFICATIONS tPLHD Differential Propagation Delay Low to High (1) tPHLD Differential Propagation Delay High to Low (1) tSKD1 Pulse Skew |tPLHD - tPHLD| (1) (2) 40 100 ps tSKD2 Channel to Channel Skew (1) (3) 40 125 ps tSKD3 Part to Part Skew tLHT Rise Time (1) tHLT Fall Time (1) tON RL = 100 (1) (4) 50 200 ps 150 300 ps 150 300 ps Any PWDN to Output Active Time 8 20 s tOFF Any PWDN to Output Inactive Time 5 12 ns tSEL Select Time 5 12 ns 135 MHz 0.5 1 ps 311 MHz 0.5 1 ps 503 MHz 0.5 1 ps 750 MHz 0.5 1 ps 270 Mbps 6 22 ps 622 Mbps 6 21 ps 1.0625 Gbps 9 18 ps RL = 100 JITTER PERFORMANCE (1) tRJ1 tRJ2 tRJ3 Random Jitter (RMS Value) (5) VID = 350 mV VCM = 1.2V Clock (RZ) tRJ4 tDJ1 tDJ2 tDJ3 Deterministic Jitter (Peak to Peak Value) (6) VID = 350 mV VCM = 1.2V K28.5 (NRZ) tDJ4 tTJ1 tTJ2 tTJ3 Total Jitter (7) tTJ4 (1) (2) (3) (4) (5) (6) (7) 6 VID = 350 mV VCM = 1.2V PRBS-23 (NRZ) 1.5 Gbps 9 17 ps 270 Mbps 0.01 0.03 UIP-P 622 Mbps 0.01 0.03 UIP-P 1.0625 Gbps 0.01 0.04 UIP-P 1.5 Gbps 0.01 0.06 UIP-P Specification is specified by characterization and is not tested in production. tSKD1, |tPLHD - tPHLD|, Pulse Skew, is the magnitude difference in differential propagation delay time between the positive going edge and the negative going edge of the same channel. tSKD2, Channel to Channel Skew, is the difference in propagation delay (tPLHD or tPHLD) among all output channels in Broadcast mode (any one input to all outputs). tSKD3, Part to Part Skew, is defined as the difference between the minimum and maximum differential propagation delays. This specification applies to devices at the same VCC and within 5C of each other within the operating temperature range. Measured on a clock edge with a histogram and an accumulation of 1500 histogram hits. Input stimulus jitter is subtracted geometrically. Tested with a combination of the 1100000101 (K28.5+ character) and 0011111010 (K28.5- character) patterns. Input stimulus jitter is subtracted algebraically. Measured on an eye diagram with a histogram and an accumulation of 3500 histogram hits. Input stimulus jitter is subtracted. Submit Documentation Feedback Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 DS10BR254 www.ti.com SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 APPLICATION INFORMATION DC TEST CIRCUITS 1/4 DS10BR254 Power Supply VOH OUT+ IN+ R D RL Power Supply IN- OUTVOL AC TEST CIRCUITS AND TIMING DIAGRAMS 1/4 DS10BR254 OUT+ IN+ R Signal Generator D IN- RL OUT- Submit Documentation Feedback Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 7 DS10BR254 SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 www.ti.com FUNCTIONAL DESCRIPTION The DS10BR254 is a 1.5 Gbps 1:4 LVDS repeater optimized for high-speed signal routing and distribution over lossy FR-4 printed circuit board backplanes and balanced cables. Table 1. Input Select Truth Table CONTROL Pin (SEL_in) State Input Selected 0 IN1 1 IN2 Input Interfacing The DS10BR254 accepts differential signals and allows simple AC or DC coupling. With a wide common mode range, the DS10BR254 can be DC-coupled with all common differential drivers (i.e. LVPECL, LVDS, CML). The following three figures illustrate typical DC-coupled interface to common differential drivers. Note that the DS10BR254 inputs are internally terminated with a 100 resistor. LVDS Driver DS10BR254 Receiver 100: Differential T-Line OUT+ IN+ 100: IN- OUT- Figure 2. Typical LVDS Driver DC-Coupled Interface to an DS10BR254 Input CML3.3V or CML2.5V Driver VCC 50: DS10BR254 Receiver 100: Differential T-Line 50: OUT+ IN+ 100: IN- OUT- Figure 3. Typical CML Driver DC-Coupled Interface to an DS10BR254 Input 8 Submit Documentation Feedback Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 DS10BR254 www.ti.com SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 LVPECL Driver OUT+ 100: Differential T-Line LVDS Receiver IN+ 100: OUT150-250: IN150-250: Figure 4. Typical LVPECL Driver DC-Coupled Interface to an DS10BR254 Input Output Interfacing The DS10BR254 outputs signals compliant to the LVDS standard. Its outputs can be DC-coupled to most common differential receivers. The following figure illustrates typical DC-coupled interface to common differential receivers and assumes that the receivers have high impedance inputs. While most differential receivers have a common mode input range that can accomodate LVDS compliant signals, it is recommended to check respective receiver's data sheet prior to implementing the suggested interface implementation. DS10BR254 Driver Differential Receiver 100: Differential T-Line OUT+ IN+ CML or LVPECL or LVDS 100: 100: IN- OUT- Figure 5. Typical DS10BR254 Output DC-Coupled Interface to an LVDS, CML or LVPECL Receiver Submit Documentation Feedback Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 9 DS10BR254 SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 www.ti.com Typical Performance Figure 6. A 1.5 Gbps NRZ PRBS-7 After 2" Differential FR-4 Stripline V:100 mV / DIV, H:100 ps / DIV Figure 7. A 1.06 Gbps NRZ PRBS-7 After 2" Differential FR-4 Stripline V:100 mV / DIV, H:200 ps / DIV Figure 8. A 622 Mbps NRZ PRBS-7 After 2" Differential FR-4 Stripline V:100 mV / DIV, H:200 ps / DIV Figure 9. A 270 Mbps NRZ PRBS-7 After 2" Differential FR-4 Stripline V:100 mV / DIV, H:500 ps / DIV 120 VCC = 3.3V TA = 25C NRZ PRBS-7 SUPPLY CURRENT (mA) 110 All Outputs ON 100 3 Outputs ON 90 2 Outputs ON 80 70 1 Output ON 60 0 0.8 1.6 2.4 3.2 4.0 DATA RATE (Gbps) Figure 10. Supply Current as a Function of a Number of Outputs Used 10 Submit Documentation Feedback Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 DS10BR254 www.ti.com SNLS260D - DECEMBER 2007 - REVISED APRIL 2013 REVISION HISTORY Changes from Revision C (April 2013) to Revision D * Page Changed layout of National Data Sheet to TI format .......................................................................................................... 10 Submit Documentation Feedback Copyright (c) 2007-2013, Texas Instruments Incorporated Product Folder Links: DS10BR254 11 PACKAGE OPTION ADDENDUM www.ti.com 12-Jun-2014 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (C) Device Marking (4/5) DS10BR254TSQ/NOPB ACTIVE WQFN RTA 40 250 Green (RoHS & no Sb/Br) CU SN Level-3-260C-168 HR -40 to 85 1BR254SQ DS10BR254TSQX/NOPB ACTIVE WQFN RTA 40 2500 Green (RoHS & no Sb/Br) CU SN Level-3-260C-168 HR -40 to 85 1BR254SQ (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. 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Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 20-Sep-2016 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DS10BR254TSQ/NOPB WQFN RTA 40 250 178.0 16.4 6.3 6.3 1.5 12.0 16.0 Q1 DS10BR254TSQX/NOPB WQFN RTA 40 2500 330.0 16.4 6.3 6.3 1.5 12.0 16.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 20-Sep-2016 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DS10BR254TSQ/NOPB WQFN RTA DS10BR254TSQX/NOPB WQFN RTA 40 250 210.0 185.0 35.0 40 2500 367.0 367.0 38.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated (TI) reserves the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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