MAX9311/MAX9313 19-2078 Rev 2 10/02 1:10 Differential LVPECL/LVECL/HSTL Clock and Data Drivers General Description Features The MAX9311/MAX9313 are low-skew, 1-to-10 differen- +2.25V to +3.8V Differential HSTL/LVPECL tial drivers designed for clock and data distribution. Operation These devices allow selection between two inputs. The -2.25V to -3.8V LVECL Operation selected input is reproduced at 10 differential outputs. The differential inputs can be adapted to accept single- 30ps (typ) Part-to-Part Skew ended inputs by connecting the on-chip V supply to BB 12ps (typ) Output-to-Output Skew one input as a reference voltage. The MAX9311/MAX9313 feature low part-to-part skew 312ps (typ) Propagation Delay (30ps) and output-to-output skew (12ps), making them 300mV Differential Output at 3GHz ideal for clock and data distribution across a backplane or a board. For interfacing to differential HSTL and On-Chip Reference for Single-Ended Inputs LVPECL signals, these devices operate over a +2.25V Output Low with Open Input to +3.8V supply range, allowing high-performance clock or data distribution in systems with a nominal +2.5V or Pin Compatible with MC100LVEP111 (MAX9311) +3.3V supply. For differential LVECL operation, these and MC100EP111 (MAX9313) devices operate from a -2.25V to -3.8V supply. Offered in Tiny QFN* Package (70% Smaller The MAX9311 features an on-chip V reference output BB Footprint than LQFP) of 1.425V below the positive supply voltage. The MAX9313 offers an on-chip V reference output of BB Ordering Information 1.32V below the positive supply voltage. PART TEMP. RANGE PIN-PACKAGE Both devices are offered in space-saving, 32-pin 5mm MAX9311ECJ -40C to +85C 32 LQFP (7mm 7mm) 5mm TQFP, 5mm x 5mm QFN, and industry-standard 32-pin 7mm x 7mm LQFP packages. MAX9311EGJ* -40C to +85C 32 QFN (5mm 5mm) MAX9311EHJ* -40C to +85C 32 TQFP (5mm 5mm) Applications MAX9313ECJ -40C to +85C 32 LQFP (7mm 7mm) Precision Clock Distribution MAX9313EGJ* -40C to +85C 32 QFN (5mm 5mm) Low-Jitter Data Repeater MAX9313EHJ* -40C to +85C 32 TQFP (5mm 5mm) *Future productcontact factory for availability. Pin Configuration TOP VIEW V Q0 Q0 Q1 Q1 Q2 Q2 V CC CC 32 31 30 29 28 27 26 25 V 1 24 Q3 CC Q3 CLKSEL 2 23 LQFP (7mm 7mm), TQFP (5mm 5mm), QFN (NO LEADS EXTENDING FROM QFN PACKAGE) CLK0 3 22 Q4 MAX9311/MAX9313 CLK0 4 21 Q4 MAX9311 CLKSEL CLK0, CLK0 CLK1, CLK1 V 5 20 Q5 BB MAX9313 0 ON OFF CLK1 6 19 Q5 1 OFF ON CLK1 7 18 Q6 V 8 17 Q6 EE 9 10 11 12 13 14 15 16 V Q9 Q9 Q8 Q8 Q7 Q7 V CC CC 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.1:10 Differential LVPECL/LVECL/HSTL Clock and Data Drivers ABSOLUTE MAXIMUM RATINGS V - V ...............................................................................4.1V Junction-to-Case Thermal Resistance CC EE Inputs (CLK , CLK , CLKSEL)..............V - 0.3V to V + 0.3V 7mm x 7mm LQFP .....................................................+12C/W EE CC CLK to CLK ....................................................................3.0V Operating Temperature Range ...........................-40C to +85C Continuous Output Current.................................................50mA Junction Temperature......................................................+150C Surge Output Current........................................................100mA Storage Temperature Range .............................-65C to +150C V Sink/Source Current ...............................................0.65mA ESD Protection BB Junction-to-Ambient Thermal Resistance in Still Air Human Body Model (CLKSEL, CLK , CLK , 7mm x 7mm LQFP .....................................................+90C/W Q , Q , V ).......................................................................2kV BB Junction-to-Ambient Thermal Resistance with Soldering Temperature (10s)...........................................+300C 500 LFPM Airflow 7mm x 7mm LQFP .....................................................+60C/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 = +2.25V to +3.8V, outputs loaded with 50 1% to V - 2V, CLKSEL = high or low, unless otherwise noted.) (Notes 14) CC EE CC -40C +25C +85C PARAMETER SYMBOL CONDITIONS UNITS MIN MAX MIN MAX MIN MAX SINGLE-ENDED INPUT (CLKSEL) V V V CC CC CC M AX93 11 V V V CC CC CC Inter nal - 1.23 - 1.23 - 1.23 Input High V V V IH B B Voltage V V V CC CC CC thr eshol d M AX93 13 V V V CC CC CC - 1.165 - 1.165 - 1.165 V V V CC CC CC M AX93 11 V V V EE EE EE Inter nal - 1.62 - 1.62 - 1.62 Input Low V V V IL B B Voltage V V V CC CC CC thr eshol d M AX93 13 V V V EE EE EE - 1.475 - 1.475 - 1.475 Input High I 150 150 150 A IH Current Input Low I -10 +10 -10 +10 -10 +10 A IL Current DIFFERENTIAL INPUTS (CLK , CLK ) V BB V V V CC CC CC connected M AX93 11 V V V CC CC CC Single-Ended - 1.23 - 1.23 - 1.23 to CLK Input High V ( V for V V IH IL BB Voltage connected V V V CC CC CC M AX93 13 V V V CC CC CC to CLK ), - 1.165 - 1.165 - 1.165 Figure 1 2 MAX9311/MAX9313