ICS501B_10 IDT | Alldatasheet

Document overview

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Technical content

Features

  • Packaged as 8 pin SOIC or die
  • Pb (lead) free package
  • IDT’s lowest cost PLL clock
  • Zero ppm multiplication error
  • Output clock frequencies up to 15 MHz
  • Extremely low jitter of 25 ps (one sigma)
  • Compatible with popular CPUs
  • Duty cycle of 45/55 up to 20 MHz
  • Nine selectable frequencies
  • Operating voltage of 3.3 V or 5.5 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 CLK PLL Clock Multiplier Circuitry and ROMCrystal or Clock input GND OE VDD Crystal Oscillator S1:0 X1/ICLK Optional crystal capacitors

LOCO™ PLL CLOCK MULTIP LIER CLOCK MULTIPLIER IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER 2 ICS501B REV F 051310 Pin Assignment Clock Output Table 0 = connect directly to ground 1 = connect directly to VDD M = leave unconnected (floating) Pin Descriptions X1/ICLK VDD GND OE CLK X21

8 Pin (150 mil) SOIC

0 0 4X input 0.5 MHz 0 M 5.3125X input 1 MHz 0 1 5X input 0.5 MHz M 0 6.25X input 0.5 MHz M M 2X input 1 MHz M 1 3.125X input 1 MHz 1 0 6X input 0.5MHz 1 M 3X input 0.5MHz 1 1 8X input 0.5MHz Pin Number Pin Name Pin Type Pin Description 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 Select 1 for output cl ock. Connect to GND or VDD or float. 5 CLK Output Clock output per table above. 6 S0 Tri-level Input Select 0 for output clock. Connect to GND or VDD or float. 7 OE Input Output enable. Tri-states CLK output when low. Internal pull-up. 8 X2 Output Crystal connection. Leave unconnected for clock input.

LOCO™ PLL CLOCK MULTIP LIER CLOCK MULTIPLIER IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER 3 ICS501B REV F 051310 External Components Decoupling Capacitor As with any high-performance mixed-signal IC, the ICS501B 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 ICS501B to minimize lead inductance. No external power supply filtering is required for the ICS501B. Series Termination Resistor A 33Ω terminating resistor can be used next to the CLK pin for trace lengths over one inch. 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. The value (in pF) of these crystal caps should equal (C L -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 ICS501B. 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. Recommended Operation Conditions Item Rating Supply Voltage, VDD 7 V 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 Parameter Min. Typ. Max. Units Ambient Operating Temperature 0 +70 ° C Power Supply Voltage (measured in respect to GND) +3.14 +5.25 V

LOCO™ PLL CLOCK MULTIP LIER CLOCK MULTIPLIER IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER 4 ICS501B REV F 051310 VDD=5.0 V ±5% , Ambient temperature 0 to +70° C, unless stated otherwise Parameter Symbol Conditions Min. Typ. Max. Units Operating Voltage VDD 3.14 5.25 V Input High Voltage, ICLK only V IH ICLK (pin 1) (VDD/2)+1 V Input Low Voltage, ICLK only V IL ICLK (pin 1) (VDD/2)-1 V Input High Voltage V IH OE (pin 7) 2.0 V Input Low Voltage V IL OE (pin 7) 0.8 V Input High Voltage V IH S0, S1 VDD-0.5 V Input Low Voltage V IL S0, S1 0.5 V Output High Voltage V OH IOH = -25 mA 2.4 V Output Low Voltage V OL IOL = 25 mA 0.4 V IDD Operating Supply Current No load 20 mA Short Circuit Current CLK output + 70 mA On-Chip Pull-up Resistor Pin 7 270 k Ω Input Capacitance, S1, S0, and OE Pins 4, 6, 7 4 pF Nominal Output Impedance 20 Ω

LOCO™ PLL CLOCK MULTIP LIER CLOCK MULTIPLIER IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER 5 ICS501B REV F 051310 VDD = 5.0 V ±5%, Ambient Temperature 0 to +70° C, unless stated otherwise Note 1: Measured with 15 pF load. Parameter Symbol Conditions Min. Typ. Max. Units Input Frequency, crystal input F IN 7.5 MHz Input Frequency, clock input F IN 0.5 7.5 MHz Output Frequency, VDD = 5.0 V ±5% F OUT 0° C to +70° C4 1 5 M H z -40° C to +85° C4 1 5 M H z Output Frequency, VDD = 3.3 V ±5% F OUT 0° C to +70° C4 1 5 M H z -40° C to +85° C4 1 5 M H z Output Clock Rise Time t OR 0.8 to 2.0 V, Note 1 1 ns Output Clock Fall Time t OF 2.0 to 8.0 V, Note 1 1 ns Output Clock Duty Cycle t OD 1.5 V, up to 25 MHz 45 49-51 55 % PLL Bandwidth 10 kHz Output Enable Time, OE high to output on 50 ns Output Disable Time, OE low to tri-state 50 ns Absolute Clock Period Jitter t ja Deviation from mean, Note 1 +70 ps One Sigma Clock Period Jitter t js Note 1 25 ps

LOCO™ PLL CLOCK MULTIP LIER CLOCK MULTIPLIER IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER 6 ICS501B REV F 051310 Package Outline and Package Dimensions (8-pin SOIC, 150 Mil. Narrow Body) Package dimensions are kept current with JEDEC Publication No. 95

Ordering Information

“LF” denotes Pb (lead) free package. 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. Part / Order Number Marking Shipping Packaging Package Temperature 501BMLF 501BML Tubes 8-pin SOIC 0 to +70 ° C 501BMLFT 501BML Tape and Reel 8-pin SOIC 0 to +70 ° C 501BMILF 501BMIL Tubes 8-pin SOIC -40 to +85 ° C 501BMILFT 501BMIL Tape and Reel 8-pin SOIC -40 to +85 ° C 501-DWF - Die on uncut, probed wafers 0 to +70 ° C 501-DPK - Tested die in waffle pack 0 to +70 ° C INDEX AREA 1 2 D E SEATING PLANE A e - C - B .10 (.004) C C L H h x 45 Millimeters Inches S y m b o l M i nM a xM i nM a x A 1.35 1.75 .0532 .0688 A1 0.10 0.25 .0040 .0098 B 0.33 0.51 .013 .020 C 0.19 0.25 .0075 .0098 D 4.80 5.00 .1890 .1968 E 3.80 4.00 .1497 .1574 e 1.27 BASIC 0.050 BASIC H 5.80 6.20 .2284 .2440 h 0.25 0.50 .010 .020 L 0.40 1.27 .016 .050 α 0° 8° 0° 8°

© 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 a nd marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA Corporate Headquarters Integrated Device Technology, Inc. www.idt.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 For Tech Support www.idt.com/go/clockhelp Innovate with IDT and accelerate your future networks. Contact: www.IDT.com ICS501B LOCO™ PLL CLOCK MULTIP LIER CLOCK MULTIPLIER