DS90LV011A 3V LVDS Single High Speed Differential Driver General Description Features The DS90LV011A is a single LVDS driver device optimized for high data rate and low power applications. The DS90LV011A is a current mode driver allowing power dissipation to remain low even at high frequency. In addition, the short circuit fault current is also minimized. The device is designed to support data rates in excess of 400Mbps (200MHz) utilizing Low Voltage Differential Signaling (LVDS) technology. The device is in both a 5-lead small outline transistor package and a new LLP-8 package with a 3mm x 3mm body size. The LVDS outputs have been arranged for easy PCB layout. The differential driver outputs provide low EMI with its typical low output swing of 350 mV. The DS90LV011A can be paired with its companion single line receiver, the DS90LV012A, or with any of National’s LVDS receivers, to provide a highspeed LVDS interface. n n n n n n n n n n n n n n Conforms to TIA/EIA-644-A Standard > 400Mbps (200MHz) switching rates 700 ps (100 ps typical) maximum differential skew 1.5 ns maximum propagation delay Single 3.3V power supply ± 350 mV differential signaling Power Off Protection (outputs in TRI-STATE) Pinout simplifies PCB layout Low power dissipation (23 mW @ 3.3V typical) SOT-23 5-lead package Leadless LLP-8 package (3x3 mm body size) SOT-23 version pin compatible with SN65LVDS1 Fabricated with advanced CMOS process technology Industrial temperature operating range (−40˚C to +85˚C) Connection Diagrams 20014922 (Top View) Order Number DS90LV011ATMF See NS Package Number MF05A 20014923 (Top View) Order Number DS90LV011ATLD See NS Package Number LDA08A Functional Diagram 20014902 © 2002 National Semiconductor Corporation DS200149 www.national.com DS90LV011A 3V LVDS Single High Speed Differential Driver May 2002 DS90LV011A Absolute Maximum Ratings Lead Temperature Range Soldering (Note 1) (4 sec.) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VDD) +260˚C Maximum Junction Temperature −0.3V to +4V LVCMOS input voltage (TTL IN) −0.3V to +3.6V HBM (1.5 kΩ, 100 pF) LVDS output voltage (OUT ± ) −0.3V to +3.9V EIAJ (0 Ω, 200 pF) LVDS output short circuit current ≥ 9kV ≥ 900V CDM (0 Ω, 0 pF) 24mA ≥ 2000V IEC direct (330 Ω, 150 pF) Maximum Package Power Dissipation @ +25˚C LDA Package +150˚C ESD Ratings ≥ 4kV 2.26 W Derate LDA Package 18.1 mW/˚C above +25˚C Thermal resistance (θJA) Recommended Operating Conditions 55.3˚C/Watt MF Package 902 mW Derate MF Package Min Typ Max Supply Voltage (VDD) 3.0 3.3 3.6 V Temperature (TA) −40 +25 +85 ˚C 7.22 mW/˚C above +25˚C Thermal resistance (θJA) 138.5˚C/Watt Storage Temperature −65˚C to +150˚C Units Electrical Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified. (Notes 2, 3, 8) Symbol Parameter Conditions |VOD| Output Differential Voltage ∆VOD VOD Magnitude Change VOS Offset Voltage ∆VOS Offset Magnitude Change RL = 100Ω (Figure 1) RL = 100Ω (Figure 1 and Figure 2) Pin Min Typ Max Units OUT+, OUT− 250 350 450 mV 3 35 mV 1.125 1.22 1.375 V 0 1 25 mV IOFF Power-off Leakage VOUT = 3.6V or GND, VDD = 0V ±1 ± 10 µA IOS Output Short Circuit Current (Note 4) VOUT+ and VOUT− = 0V −6 −24 mA IOSD Differential Output Short Circuit Current (Note 4) VOD = 0V −5 −12 mA COUT Output Capacitance VIH Input High Voltage VIL Input Low Voltage IIH Input High Current VIN = 3.3V or 2.4V IIL Input Low Current VIN = GND or 0.5V VCL Input Clamp Voltage ICL = −18 mA CIN Input Capacitance IDD Power Supply Current 3 TTL IN No Load VDD V GND 0.8 V ± 10 ± 10 µA ±2 ±1 −1.5 VIN = VDD or GND pF 2.0 µA −0.6 V 3 pF VDD RL = 100Ω 5 8 mA 7 10 mA Switching Characteristics Over Supply Voltage and Operating Temperature Ranges, unless otherwise specified. (Notes 3, 5, 6, 7) Symbol Min Typ Max Units tPHLD Differential Propagation Delay High to Low Parameter RL = 100Ω, CL = 15 pF 0.3 1.0 1.5 ns tPLHD Differential Propagation Delay Low to High (Figure 3 and Figure 4) 0.3 1.1 1.5 ns tSKD1 Differential Pulse Skew |tPHLD − tPLHD| (Note 9) 0 0.1 0.7 ns tSKD3 Differential Part to Part Skew (Note 10) 0 0.2 1.0 ns tSKD4 Differential Part to Part Skew (Note 11) 0 0.4 1.2 ns tTLH Transition Low to High Time 0.2 0.5 1.0 ns tTHL Transition High to Low Time 0.2 0.5 1.0 ns fMAX Maximum Operating Frequency (Note 12) 200 250 www.national.com Conditions 2 MHz (Continued) Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation. Note 2: 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. Note 3: All typicals are given for: VDD = +3.3V and TA = +25˚C. Note 4: Output short circuit current (IOS) is specified as magnitude only, minus sign indicates direction only. Note 5: These parameters are guaranteed by design. The limits are based on statistical analysis of the device performance over PVT (process, voltage, temperature) ranges. Note 6: CL includes probe and fixture capacitance. Note 7: Generator waveform for all tests unless otherwise specified: f = 1 MHz, ZO = 50Ω, tr ≤ 1 ns, tf ≤ 1 ns (10%-90%). Note 8: The DS90LV011A is a current mode device and only function with datasheet specification when a resistive load is applied to the drivers outputs. Note 9: tSKD1, |tPHLD − tPLHD|, is the magnitude difference in differential propagation delay time between the positive going edge and the negative going edge of the same channel. Note 10: tSKD3, Differential Part to Part Skew, is defined as the difference between the minimum and maximum specified differential propagation delays. This specification applies to devices at the same VDD and within 5˚C of each other within the operating temperature range. Note 11: tSKD4, part to part skew, is the differential channel to channel skew of any event between devices. This specification applies to devices over recommended operating temperature and voltage ranges, and across process distribution. tSKD4 is defined as |Max − Min| differential propagation delay. Note 12: fMAX generator input conditions: tr = tf < 1 ns (0% to 100%), 50% duty cycle, 0V to 3V. Output criteria: duty cycle = 45%/55%, VOD > 250mV. The parameter is guaranteed by design. The limit is based on the statistical analysis of the device over the PVT range by the transitions times (tTLH and tTHL). Parameter Measurement Information 20014903 FIGURE 1. Differential Driver DC Test Circuit 20014924 FIGURE 2. Differential Driver Full Load DC Test Circuit 20014904 FIGURE 3. Differential Driver Propagation Delay and Transition Time Test Circuit 3 www.national.com DS90LV011A Switching Characteristics DS90LV011A Parameter Measurement Information (Continued) 20014905 FIGURE 4. Differential Driver Propagation Delay and Transition Time Waveforms Application Information TABLE 1. Device Pin Descriptions Package Pin Number Pin Name Description SOT23 LLP 5 8 TTL IN LVTTL/LVCMOS driver input pins 4 1 OUT+ Non-inverting driver output pin 3 3 OUT− Inverting driver output pin 2 7 GND Ground pin 1 6 VDD Power supply pin, +3.3V ± 0.3V 2, 4, 5 NC No connect PC Board Considerations: For PC board considerations for the LLP package, please refer to application note AN-1187 “Leadless Leadframe Package.” It is important to note that to optimize signal integrity (minimize jitter and noise coupling), the LLP thermal www.national.com land pad, which is a metal (normally copper) rectangular region located under the package, should be attached to ground and match the dimensions of the exposed pad on the PCB (1:1 ratio). 4 DS90LV011A Physical Dimensions inches (millimeters) unless otherwise noted 5-Lead SOT23, JEDEC MO-178, 1.6mm Order Number DS90LV011ATMF NS Package Number MF05A 5 www.national.com DS90LV011A 3V LVDS Single High Speed Differential Driver Physical Dimensions inches (millimeters) unless otherwise noted (Continued) LLP-8, 3mm x 3mm Body Order Number DS90LV011ATLD NS Package Number LDA08A 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 AND GENERAL COUNSEL 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. National Semiconductor Corporation Americas Email: [email protected] www.national.com National Semiconductor Europe Fax: +49 (0) 180-530 85 86 Email: [email protected] Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 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. 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