DS90C031B NSC | Alldatasheet

Document overview

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Technical content

Features

n >155.5 Mbps (77.7 MHz) switching rates n High impedance LVDS outputs with power-off n ±350 mV differential signaling n Ultra low power dissipation n 400 ps maximum differential skew (5V, 25˚C) n 3.5 ns maximum propagation delay n Industrial operating temperature range n Pin compatible with DS26C31, MB571 (PECL) and 41LG (PECL) n Conforms to ANSI/TIA/EIA-644 LVDS standard n Offered in narrow and wide body SOIC package n Fail-safe logic for floating inputs Connection Diagram Functional Diagram Driver Truth Table Enables Input Outputs EN EN* D IN D OUT+ D OUT− LH X Z Z All other combinations L L H of ENABLE inputs H H L TRI-STATE® is a registered trademark of National Semiconductor Corporation. Dual-In-Line DS100989-1 Order Number DS90C031BTM, or DS90C031BTWM See NS Package Number M16A or M16B DS100989-2 March 1999 DS90C031B LVDS Quad CMOS Differential Line Driver © 1999 National Semiconductor Corporation DS100989 www.national.com

Absolute Maximum Ratings(Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (V CC ) −0.3V to +6V Input Voltage (DIN) −0.3V to (V CC + 0.3V) Enable Input Voltage (EN, EN*) −0.3V to (VCC + 0.3V) Output Voltage (DOUT+ ,D OUT− ) −0.3V to +5.8V Short Circuit Duration (DOUT+ ,D OUT− ) Continuous Maximum Package Power Dissipation@ +25˚C M Package 1068 mW Derate M Package 8.5 mW/˚C above +25˚C Derate WM Package 12.5 mW/˚C above +25˚C Storage Temperature Range −65˚C to +150˚C Lead Temperature Range Soldering (4 sec.) +260˚C Maximum Junction Temperature +150˚C ESD Rating (Note 7) (HBM, 1.5 kΩ , 100 pF) ≥ 2kV (EIAJ, 0Ω , 200 pF) ≥ 250V Recommended Operating Conditions Min Typ Max Units Supply Voltage (VCC ) +4.5 +5.0 +5.5 V Operating Free Air Temperature (TA) DS90C031BT −40 +25 +85 ˚C

Electrical Characteristics

Over supply voltage and operating temperature ranges, unless otherwise specified. (Notes 2, 3) Symbol Parameter Conditions Pin Min Typ Max Units VOD1 Differential Output Voltage RL = 100Ω (Figure 1)D OUT− , D OUT+ 250 345 450 mV ΔVOD1 Change in Magnitude of VOD1 for Complementary Output States 4 35 |mV| VOS Offset Voltage 1.10 1.25 1.35 V ΔVOS Change in Magnitude of VOS for Complementary Output States 5 25 |mV| VOH Output Voltage High R L = 100Ω 1.41 1.60 V VOL Output Voltage Low 0.90 1.07 V VIH Input Voltage High D IN, EN, EN*

2.0 V CC V

VIL Input Voltage Low GND 0.8 V II Input Current V IN =V CC , GND, 2.5V or 0.4V −10 ±1 +10 µA VCL Input Clamp Voltage I CL = −18 mA −1.5 −0.8 V IOS Output Short Circuit Current VOUT = 0V (Note 8) D OUT− , D OUT+ −3.5 −5.0 mA IOZ Output TRI-STATE Current EN = 0.8V and EN* = 2.0V, VOUT =0 Vo rVCC −10 ±1 +10 µA IOFF Power - Off Leakage V O = 0V or 2.4V, VCC = 0V or Open −10 ±1 +10 µA ICC No Load Supply Current Drivers Enabled D IN =V CC or GND V CC 1.7 3.0 mA D IN = 2.5V or 0.4V 4.0 6.5 mA ICCL Loaded Supply Current Drivers Enabled R L = 100Ω (all channels) VIN =V CC or GND (all inputs) 15.4 21.0 mA ICCZ No Load Supply Current Drivers Disabled D IN =V CC or GND EN = GND, EN* = VCC 2.2 4.0 mA Switching Characteristics VCC = +5.0V, TA = +25˚C (Notes 3, 6, 9) Symbol Parameter Conditions Min Typ Max Units tPHLD Differential Propagation Delay High to Low RL = 100Ω ,C L =5p F (Figure 2and Figure 3) 1.0 2.0 3.0 ns tPLHD Differential Propagation Delay Low to High 1.0 2.1 3.0 ns tSKD Differential Skew |tPHLD –tPLHD | 0 80 400 ps tSK1 Channel-to-Channel Skew (Note 4) 0 300 600 ps tTLH Rise Time 0.35 1.5 ns tTHL Fall Time 0.35 1.5 ns www.national.com 2

should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation. Note 3:All typicals are given for: VCC = +5.0V, TA = +25˚C. Note 5:Chip to Chip Skew is defined as the difference between the minimum and maximum specified differential propagation delays. Note 6:Generator waveform for all tests unless otherwise specified:f=1 MHz, ZO =5 0Ω ,tr ≤ 6 ns, and tf≤ 6 ns. Note 8:Output short circuit current (IOS ) is specified as magnitude only, minus sign indicates direction only. Note 9:C L includes probe and jig capacitance. FIGURE 1. Driver VOD and VOS Test Circuit

Applications Information(Continued) The TRI-STATE function allows the driver outputs to be dis- abled, thus obtaining an even lower power state when the transmission of data is not required. The footprint of the DS90C031B is the same as the industry standard 26LS31 Quad Differential (RS-422) Driver. The DS90C031B is electrically similar to the DS90C031, but differs by supporting high impedance LVDS outputs under power-off condition. This allows for multiple or redundant drivers to be used in certain applications. The DS90C031B is offered in a 300 mil. wide SOIC, allowing direct conversion to Quad PECL drivers to LVDS. It is also offered in a space sav- ing narrow SOIC (150 mil.) package. For additional LVDS application information, please refer to National’s LVDS Owner’s Manual available through Nation- al’s website www.national.com/appinfo/lvds. Pin Descriptions Pin No. Name Description 1, 7, 9, 15 D IN Driver input pin, TTL/CMOS compatible 2, 6, 10, 14 D OUT+ Non-inverting driver output pin, LVDS levels 3, 5, 11, 13 D OUT− Inverting driver output pin, LVDS levels

4 EN Active high enable pin, OR-ed with EN*

12 EN* Active low enable pin, OR-ed with EN

CC Power supply pin, +5V± 10%

8 GND Ground pin

Ordering Information

Operating Package Type/ Order Number Temperature Number −40˚C to +85˚C SOP/M16A DS90C031BTM −40˚C to +85˚C SOP/M16B DS90C031BTWM DS100989-9 FIGURE 7. Driver Output Levels

Typical Performance Characteristics Power Supply Current vs Power Supply Voltage DS100989-10 Power Supply Current vs Temperature DS100989-11 Power Supply Current vs Power Supply Voltage DS100989-12 Power Supply Current vs Temperature DS100989-13 Output TRI-STATE Current vs Power Supply Voltage DS100989-14 Output Short Circuit Current vs Power Supply Voltage DS100989-15 www.national.com7

Typical Performance Characteristics(Continued) Differential Output Voltage vs Power Supply Voltage DS100989-16 Differential Output Voltage vs Ambient Temperature DS100989-17 Output Voltage High vs Power Supply Voltage DS100989-18 Output Voltage High vs Ambient Temperature DS100989-19 Output Voltage Low vs Power Supply Voltage DS100989-20 Output Voltage Low vs Ambient Temperature DS100989-21 www.national.com 8

Typical Performance Characteristics(Continued) Offset Voltage vs Power Supply Voltage DS100989-22 Offset Voltage vs Ambient Temperature DS100989-23 Power Supply Current vs Frequency DS100989-24 Power Supply Current vs Frequency DS100989-25 Differential Output Voltage vs Load Resistor DS100989-26 Differential Propagation Delay vs Power Supply Voltage DS100989-27 www.national.com9

Typical Performance Characteristics(Continued) Differential Propagation Delay vs Ambient Temperature DS100989-28 Differential Skew vs Power Supply Voltage DS100989-29 Differential Skew vs Ambient Temperature DS100989-30 Differential Transition Time vs Power Supply Voltage DS100989-31 Differential Transition Time vs Ambient Temperature DS100989-32 www.national.com 10

Physical Dimensionsinches (millimeters) unless otherwise noted 16-Lead (0.150" Wide) Molded Small Outline Package, JEDEC Order Number DS90C031BTM www.national.com11

Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems 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. 2. A critical component is any component of 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 Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com 16-Lead (0.300" Wide) Molded Small Outline Package, JEDEC Order Number DS90C031BTWM DS90C031B LVDS Quad CMOS Differential Line Driver National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.