5P50904NBGI8

DATASHEET IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER Description Features The IDT5P50901/2/3/4 is a family of 1.8V low power, spread spectrum clock generators capable of reducing EMI radiation from an input clock. Spread spectrum technique is capable of reducing the harmonic frequency amplitude peaks by several dB. • 8-pin DFN package (2x2mm) 8-pin MSOP package (3x4.9mm) • • • • • Ordering Information Input Frequency 10 to 25 MHz - 5P50901NBGI/5P50901DVGI 20 to 50 MHz - 5P50902NBGI/5P50902DVGI 40 to 100 MHz - 5P50903NBGI/5P50903DVGI 80 to 170 MHz - 5P50904NBGI/5P50904DVGI Provides a spread spectrum output clock Input frequency range of 10 to 170 MHz Output frequency range of 10 to 170 MHz Center and down spread Peak reduction by 8 dB to 16 dB typical on 3rd through 19th odd harmonics • Low EMI feature can be disabled • Operating voltage of 1.8 V, 2.5 or 3.3V • RoHS 6 compliant package Spread Modulation Frequency Table Part Number Input (MHz) Modulation (kHz) Input (MHz) Modulation (kHz) Modulation Frequency (kHz) 5P50901 5P50902 5P50903 5P50904 10 20 40 80 27 27 27 27 25 50 100 170 67.5 67.5 67.5 57.4 ICLK*27/10000 ICLK*27/20000 ICLK*27/40000 ICLK*27/80000 Block Diagram VDD 2 ICLK S2:S0 PLL Clock Synthesizer with Spread Spectrum Circuitry CLKOUT GND IDT® SPREAD SPECTRUM CLOCK SYNTHESIZER 1 IDT5P50901/2/3/4 REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER Pin Assignment ICLK 1 VDD 8 VDD CLKOUT S0 GND 4 S1 5 S2 8-pin DFN Spread Direction and Percentage Select Table S2 S1 S0 Spread Direction Spread Percentage 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 OFF Center Center Center Center Center Down Down -±0.25 ±0.5 ±1.0 ±1.5 ±2.0 -0.5 -1.0 Pin Description Pin Number Pin Name Pin Type Pin Description 1 ICLK Input Input clock. 2 VDD Power Voltage supply. Connect to 1.8 V ±0.1 V, 2.5 V ±10% or 3.3 V ±10%, 3 S0 Input Function select 0 input. Selects spread amount and direction per table above. Internal pull-down resistor. 4 S1 Input Function select 1 input. Selects spread amount and direction per table above. Internal pull-down resistor. 5 S2 Input Function select 2 input. Selects spread amount and direction per table above. Internal pull-down resistor. 6 GND Power Connect to ground. 7 CLKOUT Output Clock output. 8 VDD Power Voltage supply. Connect to 1.8 V ±0.1 V, 2.5 V ±10% or 3.3 V ±10% IDT® SPREAD SPECTRUM CLOCK SYNTHESIZER 2 IDT5P50901/2/3/4 REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER External Components Decoupling Capacitor PCB Layout Recommendations As with any high-performance mixed-signal IC, the IDT5P50901/2/3/4 must be isolated from system power supply noise to perform optimally. For optimum device performance and lowest output phase noise, the following guidelines should be observed. 1) The 0.01µF decoupling capacitors should be mounted on the component side of the board as close to the VDD pin as possible. No vias should be used between the decoupling capacitors and VDD pins. The PCB trace to VDD pins should be kept as short as possible, as should the PCB trace to the ground via. A decoupling capacitor of 0.01µF must be connected between each VDD and the PCB ground plane. Series Termination Resistor Clock output traces over one inch should use series termination. To series terminate a 50Ω trace (a commonly used trace impedance), place a 33Ω resistor in series with the clock line, as close to the clock output pin as possible. The nominal impedance of the clock output is 20Ω. 2) To minimize EMI, the 33Ω series termination resistor (if needed) should be placed close to the clock output. 3) An optimum layout is one with all components on the same side of the board, minimizing vias through other signal layers. Other signal traces should be routed away from the IDT5P50901/2/3/4. This includes signal traces just underneath the device, or on layers adjacent to the ground plane layer used by the device. External Clock Input This device operates from an external clock input and as such does not have a on chip oscillator circuit. Spread Spectrum Profile The IDT5P50901/2/3/4 is a low EMI clock generator using an optimized frequency slew rate algorithm to facilitate down stream tracking of zero delay buffers and other PLL devices. The modulation rate is directly relate to the input clock frequency. For input frequency ICLK, then use the modulation frequency indicated for the part below. Frequency Modulation Rate Time IDT® SPREAD SPECTRUM CLOCK SYNTHESIZER 3 IDT5P50901/2/3/4 REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the IDT5P50901/2/3/4. 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 -0.5 V to 5.0 V All Inputs -0.5 V to VDD +0.5 V Ambient Operating Temperature -40 to +85° C Storage Temperature -50 to +150° C Junction Temperature 125° C Soldering Temperature 260° C Recommended Operation Conditions Parameter Min. Typ. Max. Units +85 °C Ambient Operating Temperature -40 Power Supply Voltage VDD (measured in respect to GND) +1.7 +1.8 +1.9 V +2.25 +2.5 +2.75 V +2.97 +3.3 +3.63 V IDT® SPREAD SPECTRUM CLOCK SYNTHESIZER 4 IDT5P50901/2/3/4 REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER DC Electrical Characteristics Unless stated otherwise, VDD = 1.8 V ±0.1 V. Ambient Temperature -40 to +85° C Parameter Symbol Conditions Min. Typ. Max. Units 1.7 1.8 1.9 V Operating Voltage VDD Input High Voltage VIH ICLK, S2:S0 VDD x 0.8 VDD + 0.3 V Input Low Voltage VIL ICLK, S2:S0 GND VDD x 0.2 V Output High Voltage VOH IOH = -12 mA VDD x 0.75 Output Low Voltage VOL IOL = 12 mA IDD VDD GND No load V VDD x 0.25 V See table page 6 Input Capacitance 5 pF Load Capacitance 5 pF Internal Pull-down Resistor RPD S1:S0 200 260 kΩ Unless stated otherwise, VDD = 2.5 V ±10%. Ambient Temperature -40 to +85° C Parameter Symbol Conditions Min. Typ. Max. Units 2.25 2.5 2.75 V Operating Voltage VDD Input High Voltage VIH ICLK, S2:S0 VDD x 0.8 VDD + 0.3 V Input Low Voltage VIL ICLK, S2:S0 GND VDD x 0.2 V Output High Voltage VOH IOH = -25 mA VDD x 0.9 Output Low Voltage VOL IOL = 25 mA IDD VDD GND No load V VDD x 0.1 V See table page 6 Input Capacitance 5 pF Load Capacitance 5 pF Internal Pull-down Resistor RPD S1:S0 200 260 kΩ Unless stated otherwise, VDD = 3.3 V ±10%. Ambient Temperature -40 to +85° C Parameter Symbol Conditions Min. Typ. Max. Units 2.97 3.3 3.63 V Operating Voltage VDD Input High Voltage VIH ICLK, S2:S0 VDD x 0.8 VDD + 0.3 V Input Low Voltage VIL ICLK, S2:S0 GND VDD x 0.2 V Output High Voltage VOH IOH = -33 mA VDD x 0.9 Output Low Voltage VOL IOL = 33 mA IDD VDD GND No load V VDD x 0.1 V See table page 6 Input Capacitance 5 pF Load Capacitance 5 pF Internal Pull-down Resistor RPD IDT® SPREAD SPECTRUM CLOCK SYNTHESIZER S1:S0 200 5 260 IDT5P50901/2/3/4 kΩ REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER Operational IDD IDT5P50901 IDT5P50902 5.00 7.00 4.50 6.00 4.00 5.00 3.50 Idd (mA) Idd (mA) 3.00 2.50 2.00 3.3V 1.50 2.5V 4.00 3.00 3.3V 2.00 1.8V 1.00 2.5V 1.00 0.50 0.00 1.8V 0.00 10 15 20 25 20 25 30 Fin 35 40 45 50 Fin (MHz) IDT5P50904 IDT5P50903 9.00 14.00 8.00 12.00 7.00 10.00 Idd (mA) Idd (mA) 6.00 5.00 4.00 8.00 6.00 3.3V 3.00 4.00 2.5V 2.00 3.3V 2.5V 1.8V 2.00 1.8V 1.00 0.00 0.00 40 50 60 70 80 90 80 100 100 120 140 160 Fin (MHz) Fin (MHz) AC Electrical Characteristics Unless stated otherwise, VDD = 1.8 V ±0.1 V, 2.5 V ±10% or 3.3 V ±10%. Ambient Temperature -40 to +85° C Parameter Symbol Conditions Output Clock Duty Cycle 1.8V ±0.1V, >130MHz Min. Typ. Max. Units 45 50 55 40 50 60 % Output Rise Time tOR 20% to 80%, Note 1 1.2 ns Output Fall Time tOF 80% to 20%, Note 1 1.2 ns Spread Spectrum Modulation Rate 10 to 25 MHz input (IDT5P50901) 27 67.5 kHz 20 to 50 MHz input (IDT5P50902) 27 67.5 kHz 40 to 100 MHz input (IDT5P50903) 27 67.5 kHz 80 to 170 MHz input (IDT5P50904) 27 57.3 kHz Jitter Cycle to Cycle Cycle to cycle jitter Output Settling Time Note 2 150 ps 3.0 ms Note 1: Measured with 5 pF load Note 2: Time between VDD rising above minimum operating voltage and stable frequency output IDT® SPREAD SPECTRUM CLOCK SYNTHESIZER 6 IDT5P50901/2/3/4 REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER Package Outline and Package Dimensions (8-pin DFN 2x2mm, 0.5mm pitch) Package dimensions are kept current with JEDEC Publication No. 95, Symbol A A1 A3 b N ND NE D E e D2 E2 L aaa bbb ccc Min Millimeters Max 0.80 1.00 0 0.05 0.20 Reference 0.20 0.30 8 4 0 2.00 BASIC 2.00 BASIC 0.50 BASIC 1.05 1.25 0.45 0.65 0.20 0.40 0.15 0.10 0.10 Marking Diagram (8DFN) 5 8 #### 9xGI 4 1 Notes: 1. #### is the last four numbers of the lot number. 2. Dot indicates pin 1. 3. “G” designates Pb (lead) free package. IDT® SPREAD SPECTRUM CLOCK SYNTHESIZER 7 IDT5P50901/2/3/4 REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER 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 C Marking Diagram (8 MSOP) 5 8 YYWW 90xGI 4 1 Notes: 1.YYWW is the assembly date code. 2. Dot indicates pin 1. 3. “G” designates Pb (lead) free package. 4. “I” designates industrial temperature range. IDT® SPREAD SPECTRUM CLOCK SYNTHESIZER 8 IDT5P50901/2/3/4 REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER Ordering Information Part / Order Number 5P50901NBGI8 5P50901DVGI 5P50901DVGI8 5P50902NBGI8 5P50902DVGI 5P50902DVGI8 5P50903NBGI8 5P50903DVGI 5P50903DVGI8 5P50904NBGI8 5P50904DVGI 5P50904DVGI8 Marking Shipping Packaging Package Temperature see pages 7,8 Tape and Reel Tube Tape and Reel Tape and Reel Tube Tape and Reel Tape and Reel Tube Tape and Reel Tape and Reel Tube Tape and Reel 8-pin DFN 8-pin MSOP 8-pin MSOP 8-pin DFN 8-pin MSOP 8-pin MSOP 8-pin DFN 8-pin MSOP 8-pin MSOP 8-pin DFN 8-pin MSOP 8-pin MSOP -40° C to +85° C -40° C to +85° C -40° C to +85° C -40° C to +85° C -40° C to +85° C -40° C to +85° C -40° C to +85° C -40° C to +85° C -40° C to +85° C -40° C to +85° C -40° C to +85° C -40° C to +85° C "G" after the two-letter package code denotes Pb-Free configuration, 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® SPREAD SPECTRUM CLOCK SYNTHESIZER 9 IDT5P50901/2/3/4 REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER Revision History Rev. Date Originator Description of Change A 6/28/11 R. WIllner Initial release. B 6/30/11 R. Willner Correct modulation rate on 5P50904, rise/fall time definition. C 07/29/11 R. Willner Added “Internal Pull-down Resistor” spec to DC char tables D 10/07/11 R. Willner Correct typographical errors. E 05/14/12 R. Willner Changed max Supply Voltage VDD rating from 7.0V to 5.0V F 08/21/12 R. Willner 1. Changed "Output High/Low Voltage" specs; conditions and min/max values for 1.8V DC electrical characteristics 2. Added an additional line for "Output Clock Duty Cycle" in AC char table to include conditions and values for 1.8V IDT® SPREAD SPECTRUM CLOCK SYNTHESIZER 10 IDT5P50901/2/3/4 REV F 082112 IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCK SYNTHESIZER Innovate with IDT and accelerate your future networks. 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