PCS3P8103A General Purpose Peak EMI Reduction IC Features • Generates a 4x low EMI spread spectrum clock number of circuit board layers, ferrite beads, shielding, and other passive components that are traditionally required to pass EMI regulations. • Input Frequency: 16.667MHz • Output Frequency: 66.66MHz • Tri-level frequency Deviation Selection: The custom device can generate an EMI reduced clock from crystal, or system clock. • Down Spread, Center Spread and No Spread • Low inherent Cycle-to-Cycle Jitter The PCS3P8103A has a 3 level logic control SS% for selecting Center Spread, Down Spread and No-Spread options. Refer to Output Frequency Deviation table. • Supply Voltage: 3.3V±0.3V • LVCMOS Input and output • 6L-TSOT-23 (6L-TSOT-26) Package The PCS3P8103A operates from a 3.3V±0.3V supply Voltage and is available in a 6L-TSOT-23 package. Product Description The PCS3P8103A is a versatile spread spectrum frequency modulator designed specifically to provide a 4x output of 66.66MHz from an input clock of 16.667MHz. The PCS3P8103A reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. It allows significant system cost savings by reducing the Application The PCS3P8103A is targeted towards EMI management in applications such as LCD Panels, MFPs, Digital copiers, Networking, PC peripheral devices, consumer electronics, and embedded controller systems. Block Diagram VDD SS% Modulation control XIN /CLKIN Crystal Oscillator XOUT Frequency Divider Feedback Divider r Phase Detector PLL Loop Filter VCO Output Divider ModOUT VSS ©2010 SCILLC. All rights reserved. APRIL 2010 – Rev. 2 Publication Order Number: PCS3P8103A/D PCS3P8103A Pin Configuration SS% 1 VSS 2 XIN / CLKIN 3 PCS3P8103A 6 ModOUT 5 VDD 4 XOUT Pin Description Pin# Pin Name Type Description 1 SS% I Tri-level logic input (1-M-0) used to select Down spread, No spread, and Center spread options. (Refer to Output Frequency Deviation Selection Table). Default=M. 2 VSS P Ground to entire chip. 3 XIN / CLKIN I Crystal connection or External Clock input. 4 XOUT O Crystal connection. If using an external reference, this pin must be left unconnected. 5 VDD P Power supply for the entire chip. 6 ModOUT O Spread Spectrum Clock Output. Output Frequency Deviation Selection Table CLKIN (MHz) 16.667 SS%=0 SS%=1 SS%=M Center Down No Spread ±1.2% -0.7% 0 Tri-Level Logic SS% digital input is designed to sense 3 different logic levels designated as High “1”, Low “0” and Middle “M”. No external application resistors are needed to implement the 3-Level logic control as shown: VDD Logic SS% 1 VDD M UNCONNECTED 0 VSS VSS Rev. #2 | Page 2 of 7 | www.onsemi.com PCS3P8103A Operating Conditions Symbol VDD Parameter Voltage on any input pin with respect to VSS Min Max Unit 3.0 3.6 V 0 TA Operating temperature +70 °C CL Load Capacitance 15 pF CIN Input Capacitance 7 pF Absolute Maximum Ratings Symbol VDD, VIN TSTG Rating Unit Voltage on any pin with respect to Ground Parameter -0.5 to +4.6 V Storage temperature -65 to +125 °C Ts Max. Soldering Temperature (10 sec) 260 °C TJ Junction Temperature 150 °C 2 KV TDV Static Discharge Voltage (As per JEDEC STD 22- A114-B) Note: These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect device reliability. DC Electrical Characteristics Symbol VDD Parameter Max 3 3.3 3.6 Unit Commercial temperature 0 0.15VDD Industrial temperature 0 0.13 VDD Input Middle Voltage 0.4VDD 0.60VDD Input high voltage 0.85VDD VDD V 0.4 V Input low voltage VIM VIH VOH Typ Supply Voltage VIL VOL Min Output low voltage (ModOUT Output) Output high voltage (ModOUT Output) IOL=4mA IOH= -4mA CIN Input Capacitance (XIN And XOUT) IDD Dynamic supply current (Unloaded Output) ICC Static supply current (XIN / CLKIN pulled to VSS) 2.4 V 9 pF Commercial temperature 10 mA Industrial temperature 12 mA 0.5 mA Note. The voltage on any input or I/O pin cannot exceed the power pin during power up. Rev. #2 | Page 3 of 7 | www.onsemi.com 6 V PCS3P8103A AC Electrical Characteristics Symbol fIN fOUT 1, 2 tLH tHL 1, 2 TDCIN TDCOUT 2 2 TJC 2 TJP 2 tON Parameter Min Typ Max Unit Input Clock frequency 16.667 MHz ModOUT Clock 66.66 MHz ModOUT Rise time (Measured from 20% to 80%) 3 nS ModOUT Fall time (Measured from 80% to 20%) 2.5 nS Input Clock Duty Cycle(XIN/CLKIN) 40 60 % Output Clock Duty Cycle (ModOUT) 40 60 % 1, Cy - Cy Jitter, For ModOUT with Spread ON ±200 Period Jitter, For ModOUT with Spread OFF ±150 pS PLL Lock Time Commercial (Stable power supply, valid input clock temp. to valid Clock on ModOUT) Industrial temp. 2 3 Note: 1. Parameters are specified with 15pF loaded outputs. 2. Parameter is guaranteed by design and characterization. Not 100% tested in production. Application Schematic VDD CL C 5 0.1µF VDD CL 3 XIN Y1 16.667MHz ±350 Down spread 66.66MHz ModOUT 6 4 XOUT VDD PCS3P8103A SS% 1 VSS 2 Rev. #2 | Page 4 of 7 | www.onsemi.com mS PCS3P8103A Typical Crystal Specifications Fundamental AT cut parallel resonant crystal Nominal frequency 16.667MHz Frequency tolerance ± 50ppm or better at 25°C Operating temperature range -25°C to +85°C Storage temperature -40°C to +85°C Load capacitance 18pF Shunt capacitance 7pF maximum ESR 25Ω Note: CL is Load Capacitance and Rx is used to prevent oscillations at overtone frequency of the Fundamental frequency. Typical Crystal Interface Circuit R Crystal CL Rx CL CL = 2*(CP – CS), Where CP = Load capacitance of crystal. CS = Stray capacitance due to CIN, PCB, Trace, etc. Rev. #2 | Page 5 of 7 | www.onsemi.com PCS3P8103A 6L-TSOT-23 Package Information Symbol A Dimensions Inches Millimeters Min Max Min Max 0.0295 0.035 0.75 0.90 A1 0.00 0.0039 0.00 0.10 A2 0.0275 0.0314 0.70 0.80 b 0.0157 0.0197 0.40 0.50 b1 0.0118 0.0157 0.30 0.40 c 0.0031 0.0078 0.08 0.20 D 0.1141 2.90 REF E 0.1023 0.1181 2.60 3.00 E1 0.0590 0.0069 1.50 1.70 e 0.0374 0.95 BSC e1 0.0748 1.90 BSC L 0.0118 0.0236 0.30 0.60 L1 0.0236 REF 0.60 REF L2 0.0098 BSC 0.25 BSC R 0.0039 ….. 0.10 ….. R1 0.0039 0.0098 0.10 0.25 θ 0° 8° 0° 8° y …. 0.0039 …. 0.10 Rev. #2 | Page 6 of 7 | www.onsemi.com PCS3P8103A Ordering Code Part Number PCS3P8103AG-06JR Marking AZ1 Package Type Temperature 6L-TSOT-23 (6L-TSOT-26), TAPE & REEL, Green 0°C to +70°C A “microdot” placed at the end of last row of marking or just below the last row toward the center of package indicates Pb-free. Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer's technical experts. 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