DATASHEET ICS501 LOCO™ PLL CLOCK MULTIPLIER Description Features The ICS501 LOCOTM is the most cost effective way to generate a high-quality, high-frequency clock output from a lower frequency crystal or clock input. The name LOCO stands for Low Cost Oscillator, as it is designed to replace crystal oscillators in most electronic systems. Using Phase-Locked Loop (PLL) techniques, the device uses a standard fundamental mode, inexpensive crystal to produce output clocks up to 160 MHz. • Packaged as 8-pin SOIC, MSOP, or die • RoHS 5 (green) or RoHS 6 (green and lead free) compliant packaging • • • • • • • • • • • • • • • Stored in the chip’s ROM is the ability to generate nine different multiplication factors, allowing one chip to output many common frequencies (see table on page 2). The device also has an output enable pin which tri-states the clock output when the OE pin is taken low. This product is intended for clock generation. It has low output jitter (variation in the output period), but input to output skew and jitter are not defined or guaranteed. For applications which require defined input to output skew, use the ICS570B. IDT’s lowest cost PLL clock Zero ppm multiplication error Input crystal frequency of 5 - 27 MHz Input clock frequency of 2 - 50 MHz Output clock frequencies up to 160 MHz Extremely low jitter of 25 ps (one sigma) Compatible with all popular CPUs Duty cycle of 45/55 up to 160 MHz Nine selectable frequencies Operating voltage of 3.3 V or 5.0 V Tri-state output for board level testing 25 mA drive capability at TTL levels Ideal for oscillator replacement Industrial temperature version available Advanced, low-power CMOS process Block Diagram VDD S1:0 2 PLL Clock Multiplier Circuitry and ROM X1/ICLK Crystal or Clock input Crystal Oscillator CLK X2 Optional crystal capacitors GND IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER 1 OE ICS501 REV R 051310 ICS501 LOCO™ PLL CLOCK MULTIPLIER CLOCK MULTIPLIER Pin Assignment Clock Output Table S1 S0 CLK Minimum Input 0 0 4X input per page 5 X1/ I CLK 1 8 X2 0 M 5.3125X input 20 MHz VDD 2 7 OE 0 1 5X input per page 5 GND 3 6 S0 M 0 6.25X input 4 MHz M M 2X input per page 5 M 1 3.125X input 8 MHz 1 0 6X input per page 5 1 M 3X input per page 5 1 1 8X input per page 5 S1 5 4 CLK 8 Pi n ( 150 mi l ) SOI C 0 = connect directly to ground 1 = connect directly to VDD M = leave unconnected (floating) Common Output Frequency Examples (MHz) Output 20 24 30 32 33.33 37.5 40 48 50 60 62.5 Input 10 12 10 16 16.66 12 10 12 16.66 10 20 M, M M, M 1, M M, M M, M M, 1 0, 0 0, 0 1, M 1, 0 M, 1 Output 64 66.66 72 75 80 83.33 90 100 106.25 120 125 Input 16 16.66 12 12 10 16.66 15 20 20 15 20 Selection (S1, S0) 0, 0 0, 0 1, 0 M, 0 1, 1 0, 1 1, 0 0, 1 0, M 1, 1 M, 0 Selection (S1, S0) Pin Descriptions Pin Number Pin Name Pin Type 1 XI/ICLK Input Crystal connection or clock input. 2 VDD Power Connect to +3.3 V or +5 V. 3 GND Power Connect to ground. 4 S1 Tri-level Iinput 5 CLK Output 6 S0 Tri-level Input 7 OE Input 8 X2 Output IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER Pin Description Select 1 for output clock. Connect to GND or VDD or float. Clock output per table above. Select 0 for output clock. Connect to GND or VDD or float. Output enable. Tri-states CLK output when low. Internal pull-up. Crystal connection. Leave unconnected for clock input. 2 ICS501 REV R 051310 ICS501 LOCO™ PLL CLOCK MULTIPLIER CLOCK MULTIPLIER External Components Crystal Load Capacitors The total on-chip capacitance is approximately 12 pF. A parallel resonant, fundamental mode crystal should be used. The device crystal connections should include pads for small capacitors from X1 to ground and from X2 to ground. These capacitors are used to adjust the stray capacitance of the board to match the nominally required crystal load capacitance. Because load capacitance can only be increased in this trimming process, it is important to keep stray capacitance to a minimum by using very short PCB traces (and no vias) between the crystal and device. Crystal capacitors, if needed, must be connected from each of the pins X1 and X2 to ground. Decoupling Capacitor As with any high-performance mixed-signal IC, the ICS501 must be isolated from system power supply noise to perform optimally. A decoupling capacitor of 0.01µF must be connected between VDD and the GND. It must be connected close to the ICS501 to minimize lead inductance. No external power supply filtering is required for the ICS501. Series Termination Resistor A 33Ω terminating resistor can be used next to the CLK pin for trace lengths over one inch. The value (in pF) of these crystal caps should equal (CL -12 pF)*2. In this equation, CL= crystal load capacitance in pF. Example: For a crystal with a 16 pF load capacitance, each crystal capacitor would be 8 pF [(16-12) x 2 = 8]. Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS501. 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, VDD 7V All Inputs and Outputs -0.5 V to VDD+0.5 V Ambient Operating Temperature -40 to +85° C Storage Temperature -65 to +150° C Soldering Temperature 260° C Recommended Operation Conditions Parameter Min. Max. Units 0 +70 °C Ambient Operating Temperature (industrial) -40 85 °C Power Supply Voltage (measured in respect to GND) +3.0 +5.25 V Ambient Operating Temperature (commercial) IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER 3 Typ. ICS501 REV R 051310 ICS501 LOCO™ PLL CLOCK MULTIPLIER CLOCK MULTIPLIER DC Electrical Characteristics VDD=5.0 V ±5% , Ambient temperature -40 to +85° C, unless stated otherwise Parameter Operating Voltage Symbol Conditions VDD Min. Typ. 3.0 Input High Voltage, ICLK only VIH ICLK (pin 1) Input Low Voltage, ICLK only VIL ICLK (pin 1) Input High Voltage VIH OE (pin 7) Input Low Voltage VIL OE (pin 7) Input High Voltage VIH S0, S1 Input Low Voltage VIL S0, S1 Output High Voltage VOH IOH = -25 mA Output Low Voltage VOL IOL = 25 mA Max. Units 5.25 V (VDD/2)+1 V (VDD/2)-1 2.0 V V 0.8 VDD-0.5 V V 0.5 2.4 V V 0.4 V IDD Operating Supply Current, 20 No load, 100M 20 mA Short Circuit Current CLK output +70 mA On-Chip Pull-up Resistor Pin 7 270 kΩ Input Capacitance, S1, S0, and OE Pins 4, 6, 7 4 pF 20 Ω Nominal Output Impedance IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER 4 ICS501 REV R 051310 ICS501 LOCO™ PLL CLOCK MULTIPLIER CLOCK MULTIPLIER AC Electrical Characteristics VDD = 5.0 V ±5%, Ambient Temperature -40 to +85° C, unless stated otherwise Parameter Symbol Conditions Min. Typ. Max. Units Input Frequency, crystal input FIN 5 27 MHz Input Frequency, clock input FIN 2 50 MHz 0° C to +70° C 13 160 MHz -40° C to +85° C 13 140 MHz 0° C to +70° C 13 100 MHz -40° C to +85° C 13 90 MHz Output Frequency, VDD = 4.75 to 5.25 V FOUT Output Frequency, VDD = 3.0 to 3.6 V FOUT Output Clock Rise Time tOR 0.8 to 2.0 V, Note 1 1 ns Output Clock Fall Time tOF 2.0 to 8.0 V, Note 1 1 ns Output Clock Duty Cycle tOD 1.5 V, up to 160 MHz 45 PLL Bandwidth 49-51 55 10 % kHz Output Enable Time, OE high to output on 50 ns Output Disable Time, OE low to tri-state 50 ns +70 ps 25 ps Absolute Clock Period Jitter tja One Sigma Clock Period Jitter tjs Deviation from mean Note 1: Measured with 15 pF load. Thermal Characteristics for 8SOIC Parameter Thermal Resistance Junction to Ambient 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 20 ° C/W Thermal Resistance Junction to Case θJC Thermal Resistance Junction to Top of Case ΨJT Still air Thermal Characteristics for 8MSOP Parameter Symbol Thermal Resistance Junction to Ambient θJA Thermal Resistance Junction to Case θJC IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER Conditions Still air 5 Min. Typ. Max. Units 95 ° C/W 48 ° C/W ICS501 REV R 051310 ICS501 LOCO™ PLL CLOCK MULTIPLIER CLOCK MULTIPLIER Package Outline and Package Dimensions (8-pin MSOP, 3.00 mm Body) Package dimensions are kept current with JEDEC Publication No. 95 Millimeters 8 Symbol E1 A A1 A2 b C D E E1 e L α aaa E IN D E X AREA 1 2 D Min Max -1.10 0 0.15 0.79 0.97 0.22 0.38 0.08 0.23 3.00 BASIC 4.90 BASIC 3.00 BASIC 0.65 Basic 0.40 0.80 0° 8° 0.10 Inches* Min Max -0.043 0 0.006 0.031 0.038 0.008 0.015 0.003 0.009 0.118 BASIC 0.193 BASIC 0.118 BASIC 0.0256 Basic 0.016 0.032 0° 8° 0.004 *For reference only. Controlling dimensions in mm. A 2 A A 1 c -C e b S E A T IN G P LA N E L aaa IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER C 6 ICS501 REV R 051310 ICS501 LOCO™ PLL CLOCK MULTIPLIER CLOCK MULTIPLIER Package Outline and Package Dimensions (8-pin SOIC, 150 Mil. Narrow Body) Package dimensions are kept current with JEDEC Publication No. 95 Millimeters Symbol 8 E A A1 B C D E e H h L α H INDEX AREA 1 2 D Min Inches* 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° 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° *For reference only. Controlling dimensions in mm. A h x 45 A1 C -Ce B SEATING PLANE L .10 (.004) IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER C 7 ICS501 REV R 051310 ICS501 LOCO™ PLL CLOCK MULTIPLIER CLOCK MULTIPLIER Ordering Information Part / Order Number Marking Shipping Packaging Package Temperature 501MLF 501MLFT 501MILF 501MILFT 501GLF 501GLFT 501GILF 501GILFT 501-DWF 501-DPK 501E-DPK 501MLF 501MLF 501MILF 501MILF 501GL 501GL 1GIL 1GIL - Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Die on uncut, probed wafers Tested die in waffle pack Tested die in waffle pack 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin MSOP 8-pin MSOP 8-pin MSOP 8-pin MSOP 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 0 to +70° C "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. 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™ LOCO™ PLL CLOCK MULTIPLIER 8 ICS501 REV R 051310 ICS501 LOCO™ PLL CLOCK MULTIPLIER CLOCK MULTIPLIER 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