MK1413S

DATASHEET MK1413 MPEG AUDIO CLOCK SOURCE Description Features The MK1413 is the ideal way to generate clocks for MPEG audio devices in computers. The device uses IDT’s proprietary mixture of analog and digital Phase-Locked Loop (PLL) technology to synthesize one of four frequencies from the 14.31818 MHz reference. In an 8-pin SOIC, the MK1413 can save component count, board space, and cost over crystals and oscillators, and increase reliability by eliminating three expensive mechanical devices from the board. • • • • • • • • • IDT offers many other clocks for computers and computer peripherals. Consult IDT when you need to remove crystals and oscillators from your board. Packaged in 8-pin SOIC Available in Pb (lead) free package Input crystal or clock frequency of 14.31818 MHz Provides master MPEG clocks for 32 kHz, 44.1 kHz, and 48 kHz sampling rates Output clock frequencies of 8.192 MHz, 11.2896 MHz, 12.288 MHz, and 16.9344 MHz Low jitter 25 mA drive capability at TTL levels (at 5.0 V) 3.3 V or 5.0 V (±10%) supply voltage Advanced, low-power CMOS process NOTE: EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Block Diagram VDD S1:0 X1 14.31818 MHz crystal or clock X2 input 2 Clock Synthesis and Control Circuitry Crystal Buffer/ Crystal Oscillator Optional crystal load capacitors (see page 3 for details) IDT™ / ICS™ MPEG AUDIO CLOCK SOURCE CLK GND 1 MK1413 REV F 121709 MK1413 MPEG AUDIO CLOCK SOURCE CLOCK SYNTHESIZER Pin Assignment Audio Clock Output Selection Table S1 S0 Audio Clock (pin 5) Accuracy (ppm) X1 1 8 X2 0 0 8.192 MHz -2 ppm VDD 2 7 S0 0 1 11.2896 MHz -24 ppm GND 3 6 S1 1 0 12.288 MHz -2 ppm NC 4 5 CLK 1 1 16.9344 MHz -24 ppm 8-pin SOIC Pin Descriptions Pin Number Pin Name Pin Type Pin Description 1 X1 Input Crystal connection. Connect this pin to a 14.31818 MHz crystal or clock. 2 VDD Power Connect to 3.3 V or 5 V. 3 GND Power Connect to ground. 4 NC — 5 CLK Output 6 S1 Input 7 S0 Input 8 X2 Output No connect. Audio clock output as per table above. Frequency Select 1 input. Determines CLK output as per table above. Frequency Select 0 input. Determines CLK output as per table above. Crystal connection to a 14.31818 MHz crystal or leave unconnected for clock input. IDT™ / ICS™ MPEG AUDIO CLOCK SOURCE 2 MK1413 REV F 121709 MK1413 MPEG AUDIO CLOCK SOURCE CLOCK SYNTHESIZER Application Information Series Termination Resistor performance and lowest output phase noise: Clock output traces should use series termination. For series terminating a 50Ω trace (a commonly used trace impedance), place a 33Ω resistor in series with the clock line and as close to the clock output pin as possible. The nominal impedance of the clock output is 20Ω. 1) Each 0.01µF decoupling capacitor should be mounted on the component side of the board as close to the VDD pin as possible. No vias should be used between decoupling capacitor and VDD pin. The PCB trace to VDD pin should be kept as short as possible, as should the PCB trace to the ground via. Distance of the ferrite bead and bulk decoupling from the device is less critical. Crystal Load Capacitors The device crystal connections should include pads for capacitors from X1 to ground and from X2 to ground, and a parallel rsonant 14.31818 MHz crystal is recommended. These capacitors are used to adjust the stray capacitance of the board to match the nominally required crystal load capacitance. To reduce possible noise pickup, use very short PCB traces (and no vias) been the crystal and device. 2) The external crystal should be mounted next to the device with short traces. The X1 and X2 traces should not be routed next to each other with minimum spaces, instead they should be separated and away from other traces. 3) To minimize EMI, and obtain the best signal integrity, the 33Ω series termination resistor should be placed close to the clock output. The value (in pF) of each crystal load capacitor should equal (CL -4) x2, where CL is the crystal’s load (correlation) capacitance in pF. The frequency tolerance of the crystal should be 50 ppm or better.For a clock input, connect X1 and leave X2 unconnected. Because these capacitors adjust the stray capacitance of the PCB, check the output frequency using your final layout to see if the value of C should be changed. 4) An optimum layout is one with all components on the same side of the board, minimizing vias through other signal layers (the ferrite bead and bulk decoupling capacitor can be mounted on the back). Other signal traces should be routed away from the MK1413. This includes signal traces just underneath the device, or on layers adjacent to the ground plane layer used by the device. PCB Layout Recommendations Observe the following guidelines for optimum device IDT™ / ICS™ MPEG AUDIO CLOCK SOURCE 3 MK1413 REV F 121709 MK1413 MPEG AUDIO CLOCK SOURCE CLOCK SYNTHESIZER Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the MK1413. 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 0 to +70° C Storage Temperature -65 to +150° C Junction Temperature 125° C Soldering Temperature (max of 10 seconds) 260° C Recommended Operation Conditions Parameter Min. Max. Units 0 +70 °C +3.0 +5.5 V Ambient Operating Temperature Power Supply Voltage (measured in respect to GND) Typ. DC Electrical Characteristics Unless stated otherwise, VDD = 5.0 V ±10%, Ambient Temperature 0 to +70° C Parameter Symbol Operating Voltage VDD Conditions Min. Typ. 3.0 Max. Units 5.5 V (VDD/2)-1 V Input High Voltage VIH input clock only Input Low Voltage VIL input clock only Output High Voltage VOH IOH = -4 mA VDD-0.4 V Output High Voltage VOH IOH = -25 mA 2.4 V Output Low Voltage VOL IOL = 25 mA Supply Current IDD 5 V, no Load 12 mA Supply Current IDD 3.3 V, no Load 7 mA Input Capacitance CIN S0, S1 pins 7 pF Synthesize Frequency Error IDT™ / ICS™ MPEG AUDIO CLOCK SOURCE With exact crystal 4 (VDD/2)+1 VDD/2 VDD/2 V 0.4 25 MK1413 V ppm REV F 121709 MK1413 MPEG AUDIO CLOCK SOURCE CLOCK SYNTHESIZER AC Electrical Characteristics Unless stated otherwise, VDD = 5.0 V ±10%, Ambient Temperature 0 to +70° C Parameter Symbol Conditions Min. Input Clock or Crystal Frequency Typ. Max. 14.31818 Input Crystal Accuracy Input Clock Duty Cycle Time above VDD/2 20 Units MHz 50 ppm 80 % Output Clock Rise Time tOR 0.8 to 2.0 V 1.5 ns Output Clock Fall Time tOF 2.0 to 0.8 V 1.5 ns 60 % Output Clock Duty Cycle Time above VDD/2 40 50 Absolute Clock Period Jitter 200 ps One Sigma, Clock Period Jitter 70 ps Note: Typical values are at 25°C Thermal Characteristics Parameter Thermal Resistance Junction to Ambient Thermal Resistance Junction to Case IDT™ / ICS™ MPEG AUDIO CLOCK SOURCE 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 MK1413 REV F 121709 MK1413 MPEG AUDIO CLOCK SOURCE CLOCK SYNTHESIZER Package Outline and Package Dimensions (8-pin SOIC, 150 mil Body) Package dimensions are kept current with JEDEC Publication No. 95 Millimeters Inches* 8 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° 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) C Ordering Information Part / Order Number Marking Shipping Packaging Package Temperature MK1413S* MK1413S Tubes 8-pin SOIC 0 to +70° C MK1413STR* MK1413S Tape and Reel 8-pin SOIC 0 to +70° C MK1413SLF MK1413SL Tubes 8-pin SOIC 0 to +70° C MK1413SLFTR MK1413SL Tape and Reel 8-pin SOIC 0 to +70° C *NOTE: EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Parts that are ordered with a "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™ MPEG AUDIO CLOCK SOURCE 6 MK1413 REV F 121709 MK1413 MPEG AUDIO CLOCK SOURCE CLOCK SYNTHESIZER 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