MAX9315 19-2220 Rev 1 11/04 1:5 Differential LVPECL/LVECL/HSTL Clock and Data Driver General Description Features The MAX9315 low-skew, 1-to-5 differential driver is +2.375V to +3.8V Supply for Differential designed for clock and data distribution. This device HSTL/LVPECL Operation allows selection between two inputs. The selected input -2.375V to -3.8V Supply for Differential LVECL is reproduced at five differential outputs. The differential inputs can be adapted to accept a single-ended input Operation by connecting the on-chip V supply to one input as a BB Two Selectable Differential Inputs reference voltage. Synchronous Output Enable/Disable The MAX9315 features low output-to-output skew (20ps), making it ideal for clock and data distribution 20ps Output-to-Output Skew across a backplane or a board. For interfacing to differ- 360ps Propagation Delay ential HSTL and LVPECL signals, this device operates over a +2.375V to +3.8V supply range, allowing high- Guaranteed 400mV Differential Output at 1.5GHz performance clock or data distribution in systems with a On-Chip Reference for Single-Ended Inputs nominal +2.5V or +3.3V supply. For differential LVECL operation, this device operates with a -2.375V to -3.8V Input Biased Low when Left Open supply. Pin Compatible with MC100LVEP14 The MAX9315 is offered in a space-saving 20-pin TSSOP package. Applications Ordering Information Precision Clock Distribution PART TEMP RANGE PIN-PACKAGE Low-Jitter Data Repeater MAX9315EUP -40C to +85C 20 TSSOP Data and Clock Driver and Buffer Central Office Backplane Clock Distribution DSLAM Backplane Pin Configuration Base Station ATE MAX9315 Typical Application Circuit TOP VIEW QO 1 20 V CC D Q0 2 19 EN Q Q1 3 18 V CC RECEIVER MAX9315 Q1 4 17 CLK1 Z = 50 O Q Q2 5 16 CLK1 Q2 6 15 V BB Z = 50 O Q Q3 7 14 CLK0 Q3 8 13 CLK0 50 50 Q4 9 12 SEL Q4 10 11 V EE V = V - 2.0V TT CC TSSOP Functional Diagram appears at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE1:5 Differential LVPECL/LVECL/HSTL Clock and Data Driver ABSOLUTE MAXIMUM RATINGS V - V ...............................................................................4.1V Multilayer PC Board CC EE Inputs (CLK , CLK , SEL, EN) 20-Pin TSSOP ...........................................................+91C/W to V ...........................................(V - 0.3V) to (V + 0.3V) Junction-to-Ambient Thermal Resistance with 500LFPM EE EE CC CLK to CLK ....................................................................3.0V Airflow Single-Layer PC Board Continuous Output Current.................................................50mA 20-Pin TSSOP ..........................................................+9.6C/W Surge Output Current........................................................100mA Junction-to-Case Thermal Resistance V Sink/Source Current ...............................................0.65mA 20-Pin TSSOP ............................................................+20C/W BB Continuous Power Dissipation (T = +70C) Operating Temperature Range ...........................-40C to +85C A Single-Layer PC Board Junction Temperature......................................................+150C 20-Pin TSSOP (derate 7.69mW/C above +70C) .......615mW Storage Temperature Range .............................-65C to +150C Multilayer PC Board ESD Protection 20-Pin TSSOP (derate 10.9mW/C above +70C) .......879mW Human Body Model (Inputs and Outputs) .......................2kV Junction-to-Ambient Thermal Resistance in Still Air Soldering Temperature (10s)...........................................+300C Single-Layer PC Board 20-Pin TSSOP .........................................................+130C/W 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. DC ELECTRICAL CHARACTERISTICS (V - V = 2.375V to 3.8V, outputs loaded with 50 1% to V - 2V, SEL = high or low, EN = low, unless otherwise noted. Typical CC EE CC values are at V - V = +3.3V, V = V - 1V, V = V - 1.5V.) (Notes 1, 2, 3) CC EE IHD CC ILD CC -40C +25C +85C PARAMETER SYMBOL CONDITIONS UNITS MIN TYP MAX MIN TYP MAX MIN TYP MAX SINGLE-ENDED INPUTS (SEL, EN) V - V - V - CC CC CC Input High Voltage V V V V V IH CC CC CC 1.225 1.225 1.225 V - V - V - CC CC CC Input Low Voltage V V V V V IL EE EE EE 1.625 1.625 1.625 Input Current I V , V -500 500 -500 500 -500 500 A IN IH(MAX) IL(MIN) DIFFERENTIAL INPUTS (CLK , CLK ) Single-Ended Input V connected to V - V - V - BB CC CC CC High Voltage V V V V V IH CC CC CC CLK , Figure 1 1.225 1.225 1.225 (Note 4) Single-Ended Input V connected to V - V - V - BB CC CC CC Low Voltage V V V V V IL EE EE EE CLK , Figure 1 1.625 1.625 1.625 (Note 4) High Voltage of V + V + V + EE EE EE V V V V V IHD CC CC CC Differential Input 1.2 1.2 1.2 Low Voltage of V - V - V - CC CC CC V V V V V ILD EE EE EE Differential Input 0.1 0.1 0.1 2 MAX9315