19-4802; Rev 0; 7/00 Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 Features ♦ Low 300ps (max) Pulse Skew for High-Resolution Imaging and High-Speed Interconnect ♦ Space-Saving 8-Pin SOT23 and SO Packages ♦ Pin-Compatible Upgrades to DS90LV018A and DS90LV028A (SO Packages Only) ♦ Guaranteed 500Mbps Data Rate ♦ Low 29mW Power Dissipation at 3.3V ♦ Conform to EIA/TIA-644 Standard ♦ Single +3.3V Supply ♦ Flow-Through Pinout Simplifies PC Board Layout ♦ Fail-Safe Circuit Sets Output High for Undriven Inputs ♦ High-Impedance LVDS Inputs when Powered Off The MAX9111 is a single LVDS receiver, and the MAX9113 is a dual LVDS receiver. Both devices conform to the EIA/TIA-644 LVDS standard and convert LVDS to LVTTL/CMOS-compatible outputs. A fail-safe feature sets the outputs high when the inputs are undriven and open, terminated, or shorted. The MAX9111/MAX9113 are available in space-saving 8-pin SOT23 and SO packages. Refer to the MAX9110/ MAX9112 data sheet for single/dual LVDS line drivers. Ordering Information ________________________Applications TEMP. RANGE PINPACKAGE TOP MARK -40°C to +85°C 8 SOT23 AAEE -40°C to +85°C 8 SO PART Laser Printers Network Switches/Routers Digital Copiers LCD Displays MAX9111EKA Cellular Phone Base Stations Backplane Interconnect MAX9111ESA Clock Distribution MAX9113EKA -40°C to +85°C 8 SOT23 MAX9113ESA -40°C to +85°C 8 SO Telecom Switching Equipment — AAED — Typical Operating Circuit appears at end of data sheet. Pin Configurations/Functional Diagrams/Truth Table MAX9111 MAX9111 MAX9113 MAX9113 IN- 1 8 VCC VCC 1 8 IN- IN1- 1 8 VCC VCC 1 8 IN1- IN+ 2 7 OUT GND 2 7 IN+ IN1+ 2 7 OUT1 GND 2 7 IN1+ N.C. 3 6 N.C. OUT 3 6 N.C. IN2+ 3 6 OUT2 OUT1 3 6 IN2+ 5 N.C. IN2- 4 5 GND OUT2 4 5 IN2- MAX9111 N.C. 4 5 SO GND N.C. 4 (IN_+) - (IN_-) OUT_ ≥ 100mV H L ≥ -100mV OPEN SHORT 100Ω PARALLEL TERMINATION (UNDRIVEN) SOT23 SO SOT23 H H H = LOGIC LEVEL HIGH L = LOGIC LEVEL LOW H ________________________________________________________________ Maxim Integrated Products 1 For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. MAX9111/MAX9113 General Description The MAX9111/MAX9113 single/dual low-voltage differential signaling (LVDS) receivers are designed for highspeed applications requiring minimum power consumption, space, and noise. Both devices support switching rates exceeding 500Mbps while operating from a single +3.3V supply, and feature ultra-low 300ps (max) pulse skew required for high-resolution imaging applications such as laser printers and digital copiers. MAX9111/MAX9113 Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 ABSOLUTE MAXIMUM RATINGS VCC to GND ..............................................................-0.3V to +4V IN_ _ to GND .........................................................-0.3V to +3.9V OUT_ _ to GND...........................................-0.3V to (VCC + 0.3V) ESD Protection All Pins (Human Body Model, IN_+, IN_-) ..................................±11kV Continuous Power Dissipation (TA = +70°C) 8-Pin SOT23 (derate 7.52mW/°C above +70°C)..........602mW 8-Pin SO (derate 5.88mW°C above +70°C).................471mW Operating Temperature Ranges MAX911_E .......................................................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VCC = +3.0V to +3.6V, magnitude of input voltage, |VID| = +0.1V to +1.0V, VCM = |VID|/2 to (2.4V - (|VID|/2)), TA = -40°C to +85°C. Typical values are at VCC = +3.3V and TA = +25°C, unless otherwise noted.) (Notes 1, 2) PARAMETER SYMBOL Differential Input High Threshold (Note 3) VTH VCM = 0.05V, 1.2V, 2.75V at 3.3V Differential Input Low Threshold (Note 3) VTL VCM = 0.05V, 1.2V, 2.75V at 3.3V -100 RDIFF VCM = 0.2V or 2.2V, VID = ±0.4V, VCC = 0 or 3.6V 5 Differential Input Resistance Output High Voltage (OUT_) VOH CONDITIONS MIN VID = +200mV 2.7 Inputs shorted, undriven 2.7 TYP MAX UNITS 100 mV mV 18 kΩ V IOH = -4mA 100Ω parallel termination, undriven 2.7 Output Low Voltage (OUT_) VOL IOL = 4mA, VID = -200mV 0.4 Output Short-Circuit Current IOS VID = +200mV, VOUT_ = 0 -100 No-Load Supply Current ICC Inputs open 2 MAX9111 4.2 6 MAX9113 8.7 11 _______________________________________________________________________________________ mA mA Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 (VCC = +3.0V to +3.6V, TA = -40°C to +85°C. Typical values are at VCC = +3.3V and TA = +25°C, unless otherwise noted.) (Notes 4, 5, 6) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Differential Propagation Delay High to Low tPHLD 1 1.77 2.5 ns Differential Propagation Delay Low to High tPLHD 1 1.68 2.5 ns Differential Pulse Skew |tPLHD –tPHLD| (Note 7) tSKD1 90 300 ps Differential Channel-to-Channel Skew; Same Device (MAX9113 only) (Note 8) tSKD2 140 400 ps Differential Part-to-Part Skew (Note 9) tSKD3 1 ns Differential Part-to-Part Skew (MAX9113 only) (Note 10) tSKD4 1.5 ns CL = 15pF, VID = ±200mV, V CM = 1.2V, Figures 1, 2 Rise Time tTLH 0.6 0.8 ns Fall Time tTHL 0.6 0.8 ns Maximum Operating Frequency fMAX All channels switching, CL =15pF, VOL (max) = 0.4V, VOH (min) = 2.7V, 40% < duty cycle < 60% (Note 6) 250 300 MHz Note 1: Maximum and minimum limits over temperature are guaranteed by design and characterization. Devices are production tested at TA = +25°C. Note 2: Current into the device is defined as positive. Current out of the devices is defined as negative. All voltages are referenced to ground except VTH and VTL. Note 3: Guaranteed by design, not production tested. Note 4: AC parameters are guaranteed by design and characterization. Note 5: CL includes probe and test jig capacitance. Note 6: fMAX generator output conditions: tR = tF < 1ns (0% to 100%), 50% duty cycle, VOH = 1.3V, VOL = 1.1V. Note 7: tSKD1 is the magnitude difference of differential propagation delays in a channel. tSKD1 = |tPLHD - tPHLD|. Note 8: tSKD2 is the magnitude difference of the tPLHD or tPHLD of one channel and the tPLHD or tPHLD of the other channel on the same device. Note 9: tSKD3 is the magnitude difference of any differential propagation delays between devices at the same VCC and within 5°C of each other. Note 10: tSKD4, is the magnitude difference of any differential propagation delays between devices operating over the rated supply and temperature ranges. _______________________________________________________________________________________ 3 MAX9111/MAX9113 SWITCHING CHARACTERISTICS MAX9111/MAX9113 Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 Test Circuit Diagrams IN_+ GENERATOR IN_- OUT_ R CL 50Ω 50Ω Figure 1. Receiver Propagation Delay and Transition Time Test Circuit IN_- +1.3V 0V DIFFERENTIAL VID = 200mV +1.2V IN_+ +1.1V tPLHD tPHLD 80% VOH 80% 50% OUT_ 50% 20% 20% VOL tTLH tTHL Figure 2. Receiver Propagation Delay and Transition Time Waveforms 4 _______________________________________________________________________________________ Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 3.1 3.2 3.3 3.4 3.5 120 110 100 VID = 200mV 78 73 68 63 58 53 48 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.0 3.1 3.2 3.3 3.4 3.5 SUPPLY VOLTAGE (V) DIFFERENTIAL THRESHOLD VOLTAGE vs. SUPPLY VOLTAGE MAX9113 POWER-SUPPLY CURRENT vs. FREQUENCY POWER-SUPPLY CURRENT vs. TEMPERATURE LOW-HIGH 18 HIGH-LOW 16 MAX9111 toc05 MAX9111 toc04 50 40 BOTH CHANNELS SWITCHING 30 20 10 ONE SWITCHING 0 0.01 14 3.1 3.2 3.3 3.4 3.5 3.6 0.1 DIFFERENTIAL PROPAGATION DELAY vs. SUPPLY VOLTAGE tPLHD 3.1 3.2 3.3 3.4 SUPPLY VOLTAGE (V) 3.5 3.6 100 1000 -40 -15 2.20 2.15 2.10 2.05 2.00 1.95 1.90 1.85 1.80 1.75 1.70 1.65 1.60 1.55 1.50 10 35 60 85 TEMPERATURE (°C) DIFFERENTIAL PULSE SKEW vs. SUPPLY VOLTAGE 120 MAX9111 toc08 DIFFERENTIAL PROPAGATION DELAY (ns) tPHLD 1.60 1.55 1.50 10 DIFFERENTIAL PROPAGATION DELAY vs. TEMPERATURE MAX9111 toc07 2.10 2.05 2.00 1.95 1.90 1.85 1.80 1.75 1.70 1.65 1 fIN = 1MHz BOTH CHANNELS SWITCHING FREQUENCY (MHz) SUPPLY VOLTAGE (V) DIFFERENTIAL SKEW (ns) 3.0 7.7 7.6 7.5 7.4 7.3 7.2 7.1 7.0 6.9 6.8 6.7 6.6 6.5 tPHLD tPLHD MAX9111 toc09 20 60 3.6 MAX9111 toc06 SUPPLY VOLTAGE (V) POWER-SUPPLY CURRENT (mA) SUPPLY VOLTAGE (V) 22 3.0 MAX9111 toc03 83 OUTPUT SHORT-CIRCUIT CURRENT (mA) IOUT_ = 4mA 3.6 24 DIFFERENTIAL THRESHOLD VOLTAGE (mV) 130 90 3.0 DIFFERENTIAL PROPAGATION DELAY (ns) OUTPUT SHORT-CIRCUIT CURRENT vs. SUPPLY VOLTAGE MAX9111 toc02 IOUT_ = 4mA OUTPUT LOW VOLTAGE (mV) MAX9111 toc01 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 OUTPUT LOW VOLTAGE vs. SUPPLY VOLTAGE POWER-SUPPLY CURRENT (mA) OUTPUT HIGH VOLTAGE (V) OUTPUT HIGH VOLTAGE vs. SUPPLY VOLTAGE 100 80 60 40 -40 -15 10 35 TEMPERATURE (°C) 60 85 3.0 3.1 3.2 3.3 3.4 SUPPLY VOLTAGE (V) 3.5 _______________________________________________________________________________________ 3.6 5 MAX9111/MAX9113 Typical Operating Characteristics (VCC = 3.3V, |VID| = 200mV, VCM = 1.2V, fIN = 200MHz, CL = 15pF, TA = +25°C and over recommended operating conditions unless otherwise specified.) Typical Operating Characteristics (continued) (VCC = 3.3V, |VID| = 200mV, VCM = 1.2V, fIN = 200MHz, CL = 15pF, TA = +25°C and over recommended operating conditions, unless otherwise specified.) DIFFERENTIAL PROPAGATION DELAY vs. DIFFERENTIAL INPUT VOLTAGE 150 100 50 fIN = 20MHz 2.8 2.6 2.4 tPHLD 2.2 2.0 1.8 1.6 1.4 tPLHD 1.2 2.2 -40 -15 10 35 60 0 85 2.1 2.0 1.9 tPHLD 1.8 1.7 tPLHD 500 1000 1500 2000 0 2500 0.5 DIFFERENTIAL PROPAGATION DELAY (ns) 580 530 tTLH 480 430 380 2.9 2.7 tPHLD 2.5 2.3 2.1 1.9 tPLHD 1.7 1.5 330 -40 -15 10 35 60 10 85 15 20 25 30 35 40 45 LOAD (pF) TEMPERATURE (°C) MAX9111 toc16 TRANSITION TIME vs. LOAD TRANSITION TIME (ps) 2200 1800 tTHL 1400 tTLH 1000 600 200 10 15 20 25 30 35 40 45 50 LOAD (pF) 6 2.0 MAX9111 toc15 3.1 MAX9111 toc14 tTHL 630 1.5 DIFFERENTIAL PROPAGATION DELAY vs. LOAD TRANSITION TIME vs. TEMPERATURE 680 1.0 2.5 COMMON-MODE VOLTAGE (V) DIFFERENTIAL INPUT VOLTAGE (mV) TEMPERATURE (°C) TRANSITION TIME (ps) fIN = 20MHz 1.6 1.0 0 MAX91111 toc12 DIFFERENTIAL PROPAGATION DELAY (ns) 200 MAX9111 toc11 3.0 MAX9111 toc10 250 DIFFERENTIAL PROPAGATION DELAY vs. COMMON-MODE VOLTAGE DIFFERENTIAL PROPAGATION DELAY (ns) DIFFERENTIAL PULSE SKEW vs. TEMPERATURE DIFFERENTIAL SKEW (ps) MAX9111/MAX9113 Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 _______________________________________________________________________________________ 50 3.0 Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 PIN MAX9111 NAME MAX9113 FUNCTION SOT23-8 SO-8 SOT23-8 SO-8 1 8 1 8 VCC Power Supply 2 5 2 5 GND Ground 8 1 8 1 IN-/IN1- 7 2 7 2 IN+/IN1+ — — 5 4 IN2- Receiver Inverting Differential Input — — 6 3 IN2+ Receiver Noninverting Differential Input 3 7 3 7 OUT/OUT1 Receiver Output — — 4 6 OUT2 Receiver Output 4, 5, 6 3, 4, 6 — — N.C. _______________Detailed Description LVDS Inputs The MAX9111/MAX9113 feature LVDS inputs for interfacing high-speed digital circuitry. The LVDS interface standard is a signaling method intended for point-topoint communication over a controlled impedance media, as defined by the ANSI/EIA/TIA-644 standards. The technology uses low-voltage signals to achieve fast transition times, minimize power dissipation, and noise immunity. Receivers such as the MAX9111/MAX9113 convert LVDS signals to CMOS/LVTTL signals at rates in excess of 500Mbps. The devices are capable of detecting differential signals as low as 100mV and as high as 1V within a 0V to 2.4V input voltage range . The LVDS standard specifies an input voltage range of 0 to 2.4V referenced to ground. Fail-Safe The fail-safe feature sets the output to a high state when the inputs are undriven and open, terminated, or shorted. When using one channel in the MAX9113, leave the unused channel open. Receiver Inverting Differential Input Receiver Noninverting Differential Input No Connection. Not internally connected. ESD Protection As with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electrostatic discharges encountered during handling and assembly. The receiver inputs of the MAX9111/MAX9113 have extra protection against static electricity. Maxim’s engineers have developed state-of-the-art structures to protect these pins against ESD of ±11kV without damage. The ESD structures withstand high ESD in all states: normal operation, shutdown, and powered down. ESD protection can be tested in various ways; the receiver inputs of this product family are characterized for protection to the limit of ±11kV using the Human Body Model. Human Body Model Figure 3a shows the Human Body Model, and Figure 3b shows the current waveform it generates when discharged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the test device through a 1.5kΩ resistor. _______________________________________________________________________________________ 7 MAX9111/MAX9113 Pin Description MAX9111/MAX9113 Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 RC 1M CHARGE-CURRENT LIMIT RESISTOR RD 1500Ω IP 100% 90% DISCHARGE RESISTANCE Ir PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) AMPERES HIGHVOLTAGE DC SOURCE Cs 100pF DEVICE UNDER TEST STORAGE CAPACITOR 36.8% 10% 0 0 Figure 3a. Human Body ESD Test Modules __________ Applications Information Supply Bypassing Bypass VCC with high-frequency surface-mount ceramic 0.1µF and 0.001µF capacitors in parallel, as close to the device as possible, with the 0.001µF valued capacitor the closest to the device. For additional supply bypassing, place a 10µF tantalum or ceramic capacitor at the point where power enters the circuit board. Differential Traces Output trace characteristics affect the performance of the MAX9111/MAX9113. Use controlled impedance traces to match trace impedance to both transmission medium impedance and the termination resistor. Eliminate reflections and ensure that noise couples as common mode by running the differential traces close together. Reduce skew by matching the electrical length of the traces. Excessive skew can result in a degradation of magnetic field cancellation. Maintain the distance between the differential traces to avoid discontinuities in differential impedance. Avoid 90° turns and minimize the number of vias to further prevent impedance discontinuities. tRL TIME tDL CURRENT WAVEFORM Figure 3b. Human Body Current Waveform Termination Termination resistors should match the differential characteristic impedance of the transmission line. Because the MAX9111/MAX9113 are current steering devices, an output voltage will not be generated without a termination resistor. Output voltage levels depend upon the value of the termination resistor. Resistance values may range from 75Ω to 150Ω. Minimize the distance between the termination resistor and receiver inputs. Use a single 1% to 2% surfacemount resistor across the receiver inputs. Board Layout For LVDS applications, a four-layer PC board that provides separate power, ground, LVDS signals, and input signals is recommended. Isolate the input and LVDS signals from each other to prevent coupling. For best results, separate the input and LVDS signal planes with the power and ground planes. Cables and Connectors Transmission media should have a differential characteristic impedance of about 100Ω. Use cables and connectors that have matched impedance to minimize impedance discontinuities. Avoid the use of unbalanced cables such as ribbon or simple coaxial cable. Balanced cables such as twisted pair offer superior signal quality and tend to generate less EMI due to canceling effects. Balanced cables tend to pick up noise as common mode, which is rejected by the LVDS receiver. 8 _______________________________________________________________________________________ Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 +3.3V +3.3V 0.001µF DIN_ 0.001µF 0.1µF RT = 100Ω DRIVER RECEIVER 0.1µF OUT_ LVDS MAX9110 MAX9112 MAX9111 MAX9113 Chip Information TRANSISTOR COUNT: MAX9111: 675 MAX9113: 675 PROCESS: CMOS _______________________________________________________________________________________ 9 MAX9111/MAX9113 Typical Operating Circuit Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 SOT23, 8L.EPS MAX9111/MAX9113 Package Information 10 ______________________________________________________________________________________ Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 SOICN.EPS ______________________________________________________________________________________ 11 MAX9111/MAX9113 Package Information (continued) MAX9111/MAX9113 Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 NOTES Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.