ICS508MT

DATASHEET ICS508 PECL TO CMOS CONVERTER Description Features The ICS508 is the most cost effective way to generate a high quality, high frequency CMOS clock output from a PECL clock input. • • • • • • • • • The ICS508 has separate VDD supplies for the PECL input buffer and the output buffer, allowing different voltages to be used. For example, the input clock could use a 3.3 V supply while the output operates from 2.5V. The device has an Output Enable pin that tri-states the clock output when the OE pin is taken low. The ICS508 is a member of IDT’s ClockBlocksTM family. Packaged in 8 pin SOIC or die Separate VDD supplies allow voltage translation Clock frequency of 0 - 250 MHz Duty cycle of 45/55 Operating voltages of 2.375 to 5.5V Tri-state output for board level testing 24mA output drive capability Industrial temperature version available Advanced, low power, sub-micron CMOS process NOTE: EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Block Diagram VDDP VDDC P E C LIN P E C LIN O utput B uffer OE GND IDT™ / ICS™ PECL TO CMOS CONVERTER 1 C LK GND ICS508 REV G 092209 ICS508 PECL TO CMOS CONVERTER PECL TO CMOS TRANSLATOR Pin Assignment VDDP 1 8 VDDC PECLIN 2 7 CLK PECLIN 3 6 GND GND 4 5 OE 8 Pin (150 mil) SOIC Pin Descriptions Pin Number Pin Name Pin Type Pin Description 1 VDDP Output 2 PECLIN Input Complementary PECL clock input. 3 PECLIN Input PECL clock input. 4 GND Power Connect to ground. 5 OE Input Output enable. Tri-states CLK output when low. Internal pull-up to VDDC. 6 GND Power Connect to ground. 7 CLK Output Clock output. 8 VDDC Power Connect to 2.5 V, or 3.3 V, or 5 V. Supplies output buffer and OE pin. Connect to 3.3V or 5V. Supplies PECL input buffer. External Components The ICS508 requires two 0.01µF decoupling capacitors to be connected between VDDP and GND and between VDDC and GND. They must be connected close to the ICS508 to minimize lead inductance. A 33Ω series terminating resistor can be used next to the CLK pin. IDT™ / ICS™ PECL TO CMOS CONVERTER 2 ICS508 REV G 092209 ICS508 PECL TO CMOS CONVERTER PECL TO CMOS TRANSLATOR Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS508. These ratings, which are standard values for IDT 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 Rating Supply Voltage, VDDP and VDDC 7V PECL Inputs -0.5 V to VDDP+0.5 V Clock Output and OE Pin -0.5 V to VDDC+0.5 V Ambient Operating Temperature, ICS508 0 to +70° C Ambient Operating Temperature, ICS508MI -40 to +85° C Storage Temperature -65 to +150° C Soldering Temperature 260° C Recommended Operation Conditions Parameter Min. Typ. Max. Units Ambient Operating Temperature, ICS508M 0 +70 °C Ambient Operating Temperature, ICS508MI -40 +85 °C +3.15 +3.45 V Power Supply Voltage (measured in respect to GND) Reference crystal parameters Refer to page 3 DC Electrical Characteristics VDDP = VDDC =3.3V ±5% , Ambient temperature 0 to +70° C, unless stated otherwise Parameter Operating Voltage Symbol Conditions Min. Typ. Max. Units VDD VDDP 3 5.5 V VDD VDDC 2.375 5.5 V 0.3 1 V Peak to Peak Input Voltage PECLIN Common Mode Range PECLIN VDDP = 5 V VDDP - 3.7 VDDP - 0.6 V PECLIN VDDP = 3.3 V VDDP - 2.0 VDDP - 0.6 V 2 VDDC V 0.8 V Input High Voltage VIH OE only Input Low Voltage VIL OE only IDT™ / ICS™ PECL TO CMOS CONVERTER 3 ICS508 REV G 092209 ICS508 PECL TO CMOS CONVERTER Parameter Output High Voltage Output Low Voltage PECL TO CMOS TRANSLATOR Symbol VOH VOL Conditions Min. Typ. Max. Units VDDC = 5 V IOH = -24 mA VDDC - 0.4 V VDDC = 3.3 V IOH = -18 mA VDDC - 0.4 V VDDC = 2.5 V IOH = -8 mA VDDC - 0.4 V VDDC = 5 V IOL = 24 mA 0.4 V VDDC = 3.3 V IOL = 18 mA 0.4 V VDDC = 2.5 V IOL = 8 mA 0.4 V On Chip Pull-up Resistor RPU OE 250 kΩ Operating Supply Current IDDP 100 MHz, no load 1.5 mA IDDC 100 MHz, no load 8 mA Note 1: VDDP must always be greater than or equal to VDDC AC Electrical Characteristics VDDP = VDDC = 3.3V±5%, Ambient Temperature 0 to +70° C, unless stated otherwise Parameter Input Frequency Output Clock Rise Time Symbol Conditions fIN Min. Typ. Max. Units 0 250 MHz 100 MHz 0.8 V to 2.0 V, VDDP=VDDC = 5 V 0.4 ns 100 MHz 0.8 V to 2.0 V, VDDP=VDDC=3.3 V 0.6 ns 100 MHz 0.8 V to 2.0 V, VDDP=VDDC=2.5 V 1 ns 100 MHz 2.0 V to 0.8 V, VDDP=VDDC = 5 V 0.4 ns 100 MHz 2.0 V to 0.8 V, VDDP=VDDC=3.3 V 0.6 ns 100 MHz 2.0 V to 0.8 V, VDDP=VDDC=2.5 V 1 ns Output Enable Time 100 MHz OE high to output on 0 - 100 MHz 7 20 ns Output Disable Time 100 MHz OE low to tri-state 0 - 100 MHz 7 20 ns VDDP = 5 V, VDDC = 5 V, 4 6 ns 100 MHz VDDP = 5 V, VDDC = 3.3 V 4.5 7 ns 100 MHz VDDP = 5 V, VDDC = 2.5 V 5.5 9 ns 100 MHz VDDP = 3.3 V, VDDC = 3.3 V 4.5 7 ns VDDP = 3.3 V, VDDC = 2.5 V 5.5 9 ns 55 % Output Clock Fall Time Propagation Delay Output Clock Duty Cycle 0 - 100 MHz IDT™ / ICS™ PECL TO CMOS CONVERTER Any VDD combination 4 45 ICS508 REV G 092209 ICS508 PECL TO CMOS CONVERTER Parameter PECL TO CMOS TRANSLATOR Symbol Output Clock Duty Cycle 100 - 166 MHz Output Clock Duty Cycle 166 - 250 MHz Conditions Min. Typ. Max. Units VDDP = 5 V, VDDC = 5 V 45 55 % VDDP = 5 V, VDDC = 3.3 V 45 55 % VDDP = 5 V, VDDC = 2.5 V 40 60 % VDDP = 3.3 V, VDDC = 3.3 V 40 60 % VDDP = 3.3 V, VDDC = 2.5 V 45 55 % VDDP = 5 V, VDDC = 5 V 40 60 % VDDP = 5 V, VDDC = 3.3 V 40 60 % VDDP = 5 V, VDDC = 2.5 V 35 65 % VDDP = 3.3 V, VDDC = 3.3 V 35 65 % VDDP = 3.3 V, VDDC = 2.5 V 40 60 % Thermal Characteristics Parameter Thermal Resistance Junction to Ambient Thermal Resistance Junction to Case IDT™ / ICS™ PECL TO CMOS CONVERTER Symbol Conditions Min. Typ. Max. Units θJA Still air 150 ° C/W θJA 1 m/s air flow 140 ° C/W θJA 3 m/s air flow 120 ° C/W 40 ° C/W θJC 5 ICS508 REV G 092209 ICS508 PECL TO CMOS CONVERTER PECL TO CMOS TRANSLATOR Marking Diagrams ICS508M ###### YYWW ICS508I ###### YYWW 508MLF ###### YYWW 508MILF ###### YYWW Notes: 1. ###### is the lot number 2. YYWW is the last two digits of the year and the week number that the part was assembled. 3. “I” denotes industrial temperature range. 4. “LF” denotes Pb-free. 5. Bottom marking: country of origin if not USA. IDT™ / ICS™ PECL TO CMOS CONVERTER 6 ICS508 REV G 092209 ICS508 PECL TO CMOS CONVERTER PECL TO CMOS TRANSLATOR Package Outline and Package Dimensions (8 pin SOIC, 150 Mil. Narrow Body) Package dimensions are kept current with JEDEC Publication No. 95 8 Millimeters Symbol E A A1 B C D E e H h L α H INDEX AREA 1 2 D Min Max 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° A Inches Min Max .0532 .0688 .0040 .0098 .013 .020 .0075 .0098 .1890 .1968 .1497 .1574 0.050 BASIC .2284 .2440 .010 .020 .016 .050 0° 8° h x 45 A1 C -Ce SEATING PLANE B L .10 (.004) C *Ordering Information Part / Order Number 508M* 508MT* 508MI* 508MIT* 508MLF 508MLFT 508MILF 508MILFT 508-DWF 508-DPK Marking see page 6 - Shipping Packaging Package Temperature Tubes 8 pin SOIC Tape and Reel 8 pin SOIC Tubes 8 pin SOIC Tape and Reel 8 pin SOIC Tubes 8 pin SOIC Tape and Reel 8 pin SOIC Tubes 8 pin SOIC Tape and Reel 8 pin SOIC Die on uncut, probed wafers Tested die in waffle pack 0 to +70° C 0 to +70° C -40 to +85° C -40 to +85° C 0 to +70° C 0 to +70° C -40 to +85° C -40 to +85° C 0 to +70° C 0 to +70° C NOTE: EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology (IDT) 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 IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. IDT™ / ICS™ PECL TO CMOS CONVERTER 7 ICS508 REV G 092209 ICS508 PECL TO CMOS CONVERTER PECL TO CMOS TRANSLATOR Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales For Tech Support 800-345-7015 408-284-8200 Fax: 408-284-2775 www.idt.com/go/clockhelp Corporate Headquarters Integrated Device Technology, Inc. www.idt.com © 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA