52AMI02L

ICS7152A ICST | Alldatasheet

Document overview

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Technical content

Features

• Operating voltage of 3.3 V ±0.3 V
• Packaged in 8-pin SOIC
• Input frequency range of 16.6 to 134.0 MHz
• Output frequency range of 16.6 to 134.0 MHz
• Provides a spread spectrum clock output (±0.5%, ±1.5% center spread; -1.0%, -3.0% down spread)
• Low cycle-to-cycle jitter - less than 100 ps
• Advanced, low-power CMOS process
• Industrial and commercial temperature ranges
• Available in Pb (lead) free package
• Pin compatible with Fujitsu MB88152-102 and -111 Block Diagram Product Lineup Product Input Frequency Range Modulation Type Modulation Enable Pin ICS7152AM-02, ICS7152AMI-02 40.0 MHz to 134.0 MHz Down spread Yes ICS7152AM-11, ICS7152AMI-11 16.6 MHz to 67.0 MHz Center spread PLL Clock Synthesis and Spread Spectrum Circuitry SEL FREQ CKOUT GND VDD Clock Buffer/ Crystal Ocsillator XIN XOUT External caps required with crystal for accurate tuning of the clock XENS

Spread Spectrum Clock Generator MDS 7152A A Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com ICS7152A Pin Assignment Modulation Enable Select Table Spread Direction and Percentage Select Table Frequency Select Table Pin Descriptions XENS Pin 8 Modulation Modulation No modulation XENS XOUT GND FREQ SEL CKOUT VDD XIN 8 pin (150 mil) SOIC SEL Pin 4 Spread Direction Spread Percentage (%) Part Number Center ±0.5 ICS7152AM-11 Down -1.0 ICS7152AM-02 Center ±1.5 ICS7152AM-11 Down -3.0 ICS7152AM-02 FREQ Pin 7 Frequency 16.6 to 40 MHz ICS7152AM-11 40 to 80 MHz ICS7152AM-02 33 to 67 MHz ICS7152AM-11 66 to 134 MHz ICS7152AM-02 Pin Number Pin Name Pin Type Pin Description XIN Input Crystal/clock input pin. XOUT Output Crystal. GND Power Connect to ground. SEL Input Spread modulation select. CKOUT Output Spread modulation select. VDD Power Connect to +3.3 V. FREQ Input Frequency select. XENS Output Modulation enable select.

Spread Spectrum Clock Generator MDS 7152A A Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com ICS7152A External Components The ICS7152A requires a minimum number of external components for proper operation. Decoupling Capacitor A decoupling capacitor of 0.01µF must be connected between GND and VDD on pins 3 and 6, as close to these pins as possible. For optimum device performance, the decoupling capacitor should be mounted on the component side of the PCB. Avoid the use of vias in the decoupling circuit. Series Termination Resistor Series termination should be used on the clock output. To series terminate a 50Ω trace (a commonly used trace impedance) place a 27Ω resistor in series with the clock line, as close to the clock output pin as possible. The nominal impedance of the clock output is 25Ω. PCB Layout Recommendations For optimum device performance and lowest output phase noise, the following guidelines should be observed. 1) The 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 the 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. 2) To minimize EMI, the 27Ω 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 ICS7152A. This includes signal traces just underneath the device, or on layers adjacent to the ground plane layer used by the device. Crystal Information The crystal used should be a fundamental mode, parallel resonant. Crystal capacitors should be connected from pins X1 to ground and X2 to ground to optimize the initial accuracy. The value of these capacitors is given by the following equation: Crystal caps (pF) = (CL - 6) x 2 In the equation, CL is the crystal load capacitance. So, for a crystal with a 16 pF load capacitance, two 20 pF [(16-6) x 2] capacitors should be used. Spread Spectrum Profile The ICS7152A low EMI clock generator uses a triangular frequency modulation profile for optimal down stream tracking of zero delay buffers and other PLL devices. The frequency modulation amplitude is constant with variations of the input frequency. Time Frequency Modulation Rate

Spread Spectrum Clock Generator MDS 7152A A Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com ICS7152A Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS7152A. These ratings, which are standard values for ICS 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. Overshoot/Undershoot Recommended Operation Conditions Item Rating Supply Voltage, VDD -0.5 to 4.0 V All Inputs and Outputs (referenced to GND) -0.5 V to VDD+0.5 V Ambient Operating Temperature -40 to +85°C Storage Temperature -55 to +125°C Junction Temperature -40 to +125°C Soldering Temperature 260°C Overshoot (VIOVER) VDD + 1.0 V (tOVER < 50 ns) max Undershoot (VIUNDER) GND - 1.0 V (tUNDER < 50 ns) min Parameter Min. Typ. Max. Units Ambient Operating Temperature -40 +85 Power Supply Voltage (measured in respect to GND) +3.0 3.3 3.6 V Input pin VIOVER < VDD + 1.0 V VIUNDER < GND - 1.0 V tOVER < 50 ns tUNDER < 50 ns VDD GND

Spread Spectrum Clock Generator MDS 7152A A Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com ICS7152A Unless stated otherwise, VDD = 3.3 V ±0.3 V, Ambient Temperature -40 to +85°C Parameter Symbol Conditions Min. Typ. Max. Units Operating Voltage VDD 3.0 3.3 3.6 V Supply Current IDD No load, at 3.3 V, output = 24 MHz mA Input High Voltage VIH SEL, FREQ, XENS VDD x 0.8 VDD + 0.3 V XIN, Input slew rate 3 V/ns, 16.6 to 100 MHz VDD x 0.8 VDD + 0.3 V XIN, Input slew rate

3 V/ns, 100 to 134

VDD x 0.9 VDD + 0.3 V Input Low Voltage VIL SEL, FREQ, XENS GND VDD x 0.20 V XIN, Input slew rate 3 V/ns, 16.6 to 100 MHz GND VDD x 0.20 V XIN, Input slew rate VDD x 0.10 V Output High Voltage VOH CKOUT, IOH = -4 mA VDD - 0.5 VDD V Output Low Voltage VOL CKOUT, IOL = 4 mA GND 0.4 V Input Capacitance CIN XIN, SEL, XENS pF Load Capacitance CL CKOUT, 16.6 to 67 MHz pF CKOUT, 67 to 100 MHz pF CKOUT, 100 to 134 MHz pF Output Impedance ZO CKOUT, 16.6 to 134 MHz Ω

Spread Spectrum Clock Generator MDS 7152A A Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com ICS7152A Unless stated otherwise, VDD = 3.3 V ±0.3 V, Ambient Temperature -40 to +85° C Note 1: Contact ICS Applications for more information. Parameter Symbol Conditions Min. Typ. Max. Units Oscillation Frequency fX XIN, XOUT, Fundamental oscillation 16.6 MHz XIN, XOUT, 3rd over tone, note 1 MHz Input Frequency fIN XIN, ICS7152A-11 16.6 MHz XIN, ICS7152A-02 134 MHz Output Frequency fOUT CKOUT, ICS7152A-11 16.6 MHz CKOUT, ICS7152A-02 134 MHz Input Clock Duty Cycle tDCI XIN, 16.6 to 100 MHz XIN, 100 to 134 MHz Output Clock Duty Cycle tDCC CKOUT, 1.5 V Output Slew Rate CKOUT, 0.4 to 2.4 V, load capacitance 15 pF 0.5 TBD 3.0 V/ns Cycle to Cycle Jitter tJC No load, standard deviation TBD 100 ps Lock Time tLK CKOUT ms Modulation Frequency fMOD CKOUT=TBD kHz

Spread Spectrum Clock Generator MDS 7152A A Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com ICS7152A Input Frequency (fIN = 1/tIN) Output Slew Rate Thermal Characteristics Parameter Symbol Conditions Min. Typ. Max. Units Thermal Resistance Junction to Ambient θJA Still air 150 °C/W θJA 1 m/s air flow 140 °C/W θJA 3 m/s air flow 120 °C/W Thermal Resistance Junction to Case θJC °C/W CKIN tIN

0.8 VDD

2.4 V tf 0.4 V

Spread Spectrum Clock Generator MDS 7152A A Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com ICS7152A Package Outline and Package Dimensions (8-pin SOIC, 150 Mil. Body) Package dimensions are kept current with JEDEC Publication No. 95 INDEX AREA 1 2 D E SEATING PLANE A e - C - B .10 (.004) C C L H h x 45 *For reference only. Controlling dimensions in mm. Millimeters Inches* Symbol Min Max Min Max A 1.35 1.75 .0532 .0688 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

Spread Spectrum Clock Generator MDS 7152A A Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com ICS7152A

Ordering Information

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 Circuit Systems (ICS) 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 ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or critical medical instruments. Part / Order Number Marking Shipping Packaging Package Temperature ICS7152AM-02 7152AM02 Tubes 8-pin SOIC 0 to +70° C ICS7152AM-02T 7152AM02 Tape and Reel 8-pin SOIC 0 to +70° C ICS7152AM-02LF 152AM02L Tubes 8-pin SOIC 0 to +70° C ICS7152AM-02LFT 152AM02L Tape and Reel 8-pin SOIC 0 to +70° C ICS7152AMI-02 152AMI02 Tubes 8-pin SOIC -40 to +85° C ICS7152AMI-02T 152AMI02 Tape and Reel 8-pin SOIC -40 to +85° C ICS7152AMI-02LF 52AMI02L Tubes 8-pin SOIC -40 to +85° C ICS7152AMI-02LFT 52AMI02L Tape and Reel 8-pin SOIC -40 to +85° C ICS7152AM-11 7152AM11 Tubes 8-pin SOIC 0 to +70° C ICS7152AM-11T 7152AM11 Tape and Reel 8-pin SOIC 0 to +70° C ICS7152AM-11LF 152AM11L Tubes 8-pin SOIC 0 to +70° C ICS7152AM-11LFT 152AM11L Tape and Reel 8-pin SOIC 0 to +70° C ICS7152AMI-11 152AMI11 Tubes 8-pin SOIC -40 to +85° C ICS7152AMI-11T 152AMI11 Tape and Reel 8-pin SOIC -40 to +85° C ICS7152AMI-11LF 52AMI11L Tubes 8-pin SOIC -40 to +85° C ICS7152AMI-11LFT 52AMI11L Tape and Reel 8-pin SOIC -40 to +85° C

Spread Spectrum Clock Generator MDS 7152A A Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com ICS7152A

Revision History

Rev. Originator Date Description of Change A J. Sarma 10/20/05 Rev A; new device/datasheet.