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| MK2304-1 Zero Delay, Low Skew Buffer Description The MK2304-1 is a low jitter, low skew, high performance Phase Lock Loop (PLL) based zero delay buffer for high speed applications. Based on ICS' proprietary low jitter PLL techniques, the device provides four low skew outputs at speeds up to 133 MHz at 3.3 V. The MK2304-1 includes two banks of two outputs each 1X. In the zero delay mode, the rising edge of the input clock is aligned with the rising edges of all 4 outputs. Compared to competitive CMOS devices, the MK2304-1 has the lowest jitter. ICS manufactures the largest variety of clock generators and buffers and is the largest clock supplier in the world. Features * * * * * * Packaged in 8 pin SOIC Zero input-output delay 2 banks of Two 1X outputs Output to output skew is less than 200 ps Output clocks up to 133 MHz at 3.3 V Full CMOS outputs with 18 mA output drive capability at TTL levels at 3.3 V Spectrum clock generators * Spread SmartTM technology Works with Spread * Advanced, low power, sub micron CMOS process * Operating voltage of 3.3 V * Available in industrial temperature range Block Diagram VDD 1 FBIN CLKIN PLL CLKA1 CLKA2 BANK A CLKB1 CLKB2 BANK B 1 GND MK2304-1 B 1 Revision 060605 Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com MK2304-1 Zero Delay, Low Skew Buffer Pin Assignment Feedback Configuration Table Feedback From Bank A Bank B CLKA1:A2 CLKIN CLKIN CLKB1:B2 CLKIN CLKIN REF CLKA1 CLKA2 GND 1 2 3 4 8 7 6 5 FBK VDD CLKB2 CLKB1 8 Pi n ( 150 mi l ) SOI C Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 Pin Name REF CLKA1 CLKA2 GND CLKB1 CLKB1 VDD FBK Pin Type Input Output Output Power Output Output Power Input Pin Description Clock input. Connect to input clock source. Clock A1 output. Clock A2 output. Connect to ground. Clock B1 output. Clock B2 output. 3.3 V Power Supply. PLL feedback input. MK2304-1 B 2 Revision 060605 Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com MK2304-1 Zero Delay, Low Skew Buffer External Components The MK2304-1 requires a minimum number of external components for proper operation. Decoupling capacitors of 0.1F should be connected between VDD and GND, as close to the part as possible. A 33 series terminating resistor should be used on each clock output to reduce reflections. Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the MK2304-1. These ratings, which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range. Item Supply Voltage, VDD All Inputs and Outputs Ambient Operating Temperature (commercial) Ambient Operating Temperature (industrial) Storage Temperature Junction Temperature Soldering Temperature 7V Rating -0.5 V to VDD+0.5 V 0 to +70 C -40 to +85 C -65 to +150 C 175 C 260 C Recommended Operation Conditions Parameter Ambient Operating Temperature Power Supply Voltage (measured in respect to GND) Min. -40 +3.0 Typ. Max. +85 +3.6 Units C V DC Electrical Characteristics VDD=3.3 V 10%, Commercial temperature 0 to +70C Parameter Operating Voltage Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage Symbol VDD VIH VIL VOH VOL Conditions Min. 3.0 2 Typ. Max. 3.6 0.8 Units V V V V V IOH = -8 mA IOL = 8 mA 2.4 0.4 MK2304-1 B 3 Revision 060605 Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com MK2304-1 Zero Delay, Low Skew Buffer Parameter Operating Supply Current 100 MHz, CLKIN Short Circuit Current Input Capacitance Symbol IDD IOS CIN Conditions No Load Each output FBIN Min. Typ. 45 TBD 7 Max. Units mA mA pF VDD=3.3 V 10%, Industrial temperature -40 to +85C Parameter Operating Voltage Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage Operating Supply Current 100 MHz, CLKIN Short Circuit Current Input Capacitance Symbol VDD VIH VIL VOH VOL IDD IOS CIN Conditions Min. 3.0 2 Typ. Max. 3.6 0.8 Units V V V V V mA mA pF IOH = -8 mA IOL = 8 mA No Load Each output FBIN 2.4 0.4 45 TBD 7 AC Electrical Characteristics VDD = 3.3 V 10%, Commercial Temperature 0 to +70 C Parameter Output Frequency, Output Frequency, Output Rise Time Output Rise Time Output Fall Time Output Fall Time Output Clock Duty Cycle Output Clock Duty Cycle Device to Device skew, equally loaded Output to Output skew, equally loaded, On same bank tOR tOR tOF tOF Symbol Conditions FBIN to CLKA1, 30 pF Load FBIN to CLKA1, 15 pf Load 0.8 to 2.0 V, CL=30 pF 0.8 to 2.0 V, CL=15 pF 0.8 to 2.0 V, CL=30 pF 0.8 to 2.0 V, CL=15 pF At 1.4 V, CL=30 pf At 1.4 V, CL=15 pf Rising edges at VDD/2 Rising edges at VDD/2 Min. 10 10 Typ. Max. Units 100 133 2.2 1.5 2.2 1.5 MHz MHz ns ns ns ns % % ps ps 40 45 50 50 60 55 500 200 MK2304-1 B 4 Revision 060605 Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com MK2304-1 Zero Delay, Low Skew Buffer Parameter Skew from Output Bank A to Output Bank B Delay CLKIN Rising Edge to FBIN Rising Edge Maximum Absolute Jitter Cycle to Cycle Jitter Symbol Conditions All outputs equally loaded Measured at VDD/2 Min. Typ. Max. Units 400 250 ps ps ps 400 375 1 ps ps ms 300 30 pF loads 66.67 MHz outputs 15pF loads 66.67 MHz outputs PLL Lock Time tLOCK Stable power supply, valid clocks on CLKIN, FBIN VDD = 3.3V 10%, Industrial Temperature -40 to +85 C Parameter Output Frequency, Output Frequency, Output Rise Time Output Rise Time Output Fall Time Output Fall Time Output Clock Duty Cycle Output Clock Duty Cycle Device to Device skew, equally loaded Output to Output skew, equally loaded, On same bank Skew from Output Bank A to Output Bank B Delay CLKIN Rising Edge to FBIN Rising Edge Maximum Absolute Jitter tOR tOR tOF tOF Symbol Conditions FBIN to CLKA1, 30 pF Load FBIN to CLKA1, 15 pf Load 0.8 to 2.0 V, CL=30 pF 0.8 to 2.0 V, CL=15 pF 0.8 to 2.0 V, CL=30 pF 0.8 to 2.0 V, CL=15 pF At 1.4 V, CL=30 pf At 1.4 V, CL=15 pf Rising edges at VDD/2 Rising edges at VDD/2 FIN=100 MHz All outputs equally loaded Measured at VDD/2 Min. 10 10 Typ. Max. Units 100 133 2.5 1.5 2.5 1.5 MHz MHz ns ns ns ns % % ps ps ps ps ps 40 45 50 50 60 55 500 200 400 250 300 MK2304-1 B 5 Revision 060605 Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com MK2304-1 Zero Delay, Low Skew Buffer Parameter Cycle to Cycle Jitter Symbol Conditions 30 pF loads 66.67 MHz outputs 15 pF loads 66.67 MHz outputs Min. Typ. Max. Units 400 375 1 ps ps ms PLL Lock Time tLOCK Stable power supply, valid clocks on CLKIN, FBIN Thermal Characteristics Parameter Thermal Resistance Junction to Ambient Symbol JA JA JA JC Conditions Still air 1 m/s air flow 3 m/s air flow Min. Typ. 120 115 105 58 Max. Units C/W C/W C/W C/W Thermal Resistance Junction to Case MK2304-1 B 6 Revision 060605 Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com MK2304-1 Zero Delay, Low Skew Buffer Package Outline and Package Dimensions (8 pin SOIC, 150 Mil. Narrow Body) Millimeters 8 Inches Min Max Symbol Min Max E INDEX AREA H 12 D A A1 B C D E e H h L 1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 4.80 5.00 3.80 4.00 1.27 BASIC 5.80 6.20 0.25 0.50 0.40 1.27 0 8 .0532 .0688 .0040 .0098 .013 .020 .0075 .0098 .1890 .1968 .1497 .1574 0.050 BASIC .2284 .2440 .010 .020 .016 .050 0 8 A A1 h x 45 C -Ce B SEATING PLANE L .10 (.004) C Ordering Information Part / Order Number MK2304S-1 MK2304S-1T MK2304S-1I MK2304-1IT Marking MK2304S-1 MK2304S-1 MK2304S-1I MK2304S-1I Shipping Packaging Tubes Tape and Reel Tubes Tape and Reel Package 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC Temperature 0 to 70 C 0 to 70 C -40 to 85 C -40 to 85 C While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or critical medical instruments. MK2304-1 B 7 Revision 060605 Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com |
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