MAX9324 19-2576 Rev 0 10/02 One-to-Five LVPECL/LVCMOS Output Clock and Data Driver General Description Features The MAX9324 low-skew, low-jitter, clock and data driver 15ps Differential Output-to-Output Skew distributes a differential LVPECL input to four differential 1.7ps Added Random Jitter RMS LVPECL outputs and one single-ended LVCMOS output. All outputs default to logic low when the differential inputs 150ps (max) Part-to-Part Skew equal GND or are left open. The MAX9324 operates from 450ps Propagation Delay 3.0V to 3.6V, making it ideal for 3.3V systems, and con- sumes only 25mA (max) of supply current. Synchronous Output Enable/Disable The MAX9324 features low 150ps (max) part-to-part Single-Ended Monitor Output skew, low 15ps output-to-output skew, and low 1.7ps RMS jitter, making the device ideal for clock and data Outputs Assert Low when CLK, CLK are Open or distribution across a backplane or board. CLK EN and at GND SEOUT Z control the status of the various outputs. 3.0V to 3.6V Supply Voltage Range Asserting CLK EN low configures the differential (Q , Q ) outputs to a differential low condition and SEOUT to -40C to +85C Operating Temperature Range a single-ended logic-low state. CLK EN operation is synchronous with the CLK inputs. A logic high on SEOUT Z places SEOUT in a high-impedance state. SEOUT Z is asynchronous with the CLK (CLK) inputs. Ordering Information The MAX9324 is available in space-saving 20-pin TSSOP and ultra-small 20-pin 4mm 4mm thin QFN PART TEMP RANGE PIN-PACKAGE packages and operates over the extended (-40C to MAX9324EUP -40C to +85C 20 TSSOP +85C) temperature range. MAX9324ETP* -40C to +85C 20 Thin QFN-EP** Applications *Future productContact factory for availability. **EP = Exposed paddle. Precision Clock Distribution Low-Jitter Data Repeater Data and Clock Driver and Buffer Functional Diagram and Typical Operating Circuit appear at Central-Office Backplane Clock Distribution end of data sheet. DSLAM Backplane Base Station ATE Pin Configurations TOP VIEW 20 19 18 17 16 GND 1 20 Q0 CLK EN 2 19 Q0 V SEOUT 1 15 CC N.C. 3 18 V CC GND 2 14 Q1 SEOUT 4 17 Q1 MAX9324 3 13 Q1 N.C. MAX9324 GND 5 16 Q1 **EXPOSED PADDLE SEOUT Z 4 12 Q2 N.C. 6 15 Q2 CLK 5 11 Q2 SEOUT Z 7 14 Q2 CLK 8 13 V CC 6789 10 CLK 9 12 Q3 V 10 11 Q3 CC THIN QFN-EP** (4mm x 4mm) TSSOP **CONNECT EXPOSED PADDLE TO GND. 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. N.C. CLK V CLK EN CC GND Q3 Q3 Q0 V CC Q0One-to-Five LVPECL/LVCMOS Output Clock and Data Driver ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +4.0V Junction-to-Ambient Thermal Resistance in Still Air CC Q , Q , CLK, CLK, SEOUT Z, CLK EN, 20-Pin TSSOP ............................................................+91C/W SEOUT to GND.......................................-0.3V to (V + 0.3V) 20-Pin 4mm 4mm Thin QFN.................................+59.3C/W CC CLK to CLK............................................................................3V Junction-to-Case Thermal Resistance SEOUT Short to GND .................................................Continuous 20-Pin TSSOP ............................................................+20C/W Continuous Output Current (Q , Q ) ..................................50mA 20-Pin 4mm 4mm Thin QFN......................................+2C/W Surge Output Current (Q , Q ).........................................100mA Operating Temperature Range ...........................-40C to +85C Continuous Power Dissipation (T = +70C) Junction Temperature......................................................+150C A 20-Pin TSSOP (derate 11mW/C)..............................879.1mW Storage Temperature Range .............................-65C to +150C 20-Pin 4mm 4mm Thin QFN (derate 16.9mW/C)..1349.1mW Soldering Temperature (10s)...........................................+300C 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 = 3.0V to 3.6V, differential outputs terminated with 50 1% to (V - 2V), SEOUT Z = GND, CLK EN = V , T = -40C to CC CC CC A +85C, unless otherwise noted. Typical values are at V = 3.3V, T = +25C.) (Notes 1, 2, and 3) CC A PARAMETER SYMB O L CONDITIONS MINTYPMAXUNITS SINGLE-ENDED INPUTS (CLK EN, SEOUT Z) Input High Voltage V 2V V IH CC Input Low Voltage V 0 0.8 V IL CLK EN = V -5 +5 CC Input High Current I A IH SEOUT Z = V 150 CC CLK EN = GND -150 Input Low Current I A IL SEOUT Z = GND -5 +5 DIFFERENTIAL INPUT (CLK, CLK) Differential Input High Voltage V Figure 1 1.5 V V IHD CC Differential Input Low Voltage V Figure 1 0 V - 0.15 V ILD CC Differential Input Voltage V - V 0.15 1.5 V IHD ILD Input Current I V , V -5 +150 A CLK IHD ILD DIFFERENTIAL OUTPUTS (Q , Q ) Single-Ended Output High V Figure 1 V - 1.4 V - 1.0 V OH CC CC Single-Ended Output Low V Figure 1 V - 2.0 V - 1.7 V OL CC CC Differential Output Voltage V - V Figure 1 0.6 0.85 V OH OL SINGLE-ENDED OUTPUT (SEOUT) Output High Voltage V I = -4mA 2.4 V OH OH Output Low Voltage V I = 4mA 0.4 V OL OL Output High-Impedance Current I SEOUT Z = V , SEOUT = V or GND -10 +10 A OZ CC CC Output Short-Circuit Current I V = V , SEOUT = GND 75 mA OS CLK CC SUPPLY Supply Current I (Note 4) 25 mA CC 2 MAX9324