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| January 2007 rev 0.1 Spread Spectrum Clock Generator Features * * * * * PCS3P2191A Generates four 4X low EMI spread spectrum clocks Input frequency: 15MHz Output frequency: 60MHz Internal loop filter minimizes external components and board space Selectable Centre Spread frequency deviation: 0.5%, 0.75%, 1.0%, 1.25%, 1.5%, 1.75% 2.0% offers seven selectable centre spread options of 0.5% to 2.0%, and a no spread option. (Refer Spread Deviation Selection Table). PCS3P2191A reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of all clock dependent signals. The PCS3P2191A allows significant system cost savings by reducing the number of circuit board layers, ferrite beads, and shielding that are traditionally required to pass EMI regulations. The PCS3P2191A uses the most efficient and optimized modulation profile approved by the FCC and is implemented in a proprietary all digital method. * * * * 3.3V 0.3V Operating Voltage Commercial Temperature range Available in 16-pin TSSOP Advanced low power CMOS process Application Product Description PCS3P2191A is targetted for LCD panel application PCS3P2191A is a versatile spread spectrum frequency modulator that generates four low EMI 4x clocks at the output. PCS3P2191A Block Diagram S2 S1 S0 VDD 2 PLL Modulation CLKIN / XIN XOUT Crystal Oscillator Frequency Divider Feedback Divider Phase Detector Loop Filter VCO Output Divider ModOUT 4 5 GND PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200, Campbell, CA 95008 * Tel: 408-879-9077 * Fax: 408-879-9018 www.pulsecoresemi.com Notice: The information in this document is subject to change without notice. January 2007 rev 0.1 Pin Configuration PCS3P2191A VDD GND S2 GND CLK1 CLK2 GND XIN/CLKIN 1 2 3 4 5 6 7 8 16Pin TSSOP 16 15 14 VDD S0 S1 GND CLK4 CLK3 GND XOUT PCS3P2191A 13 12 11 10 9 Pin Description Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name VDD GND S2 GND CLK1 CLK2 GND XIN/CLKIN XOUT GND CLK3 CLK4 GND S1 S0 VDD Type power power Input power Output Output power Input Output power Output Output power Output Output power Description Power Supply Voltage Pin. Connect to +3.3V. Ground Connection. Connect to system ground. Spread range select. Digital logic input used to select frequency deviation (Refer Spread Deviation Table). This pin has an internal pull-up resistor. Ground Connection. Connect to system ground. Low EMI 4x clock output. Low EMI 4x clock output. Ground Connection. Connect to system ground. Crystal connection or external reference frequency input. It can be connected to a 15MHz fundamental mode crystal. Crystal connection. If using an external reference, this pin must be left unconnected. Ground Connection. Connect to system ground. Low EMI 4x clock output. Low EMI 4x clock output. Ground Connection. Connect to system ground. Spread range select. Digital logic input used to select frequency deviation (Refer Spread Deviation Table). This pin has an internal pull-up resistor. Spread range select. Digital logic input used to select frequency deviation (Refer Spread Deviation Table). This pin has an internal pull-up resistor. Power Supply Voltage Pin. Connect to +3.3V. Spread Spectrum Clock Generator Notice: The information in this document is subject to change without notice. 2 of 8 January 2007 rev 0.1 Spread Deviation Selection Table S2 0 0 0 0 1 1 1 1 PCS3P2191A S1 0 0 1 1 0 0 1 1 S0 0 1 0 1 0 1 0 1 Deviation OFF 0.5% 0.75% 1.0% 1.25% 1.5% 1.75% 2.0% Absolute Maximum Ratings Symbol VDD VIN VOUT TSTG Ts TJ TDV Parameter Supply Voltage pin with respect to Ground Input Voltage pin with respect to Ground Output Voltage pin with respect to Ground Storage temperature Max. Soldering Temperature (10 sec) Junction Temperature Static Discharge Voltage(As per JEDEC STD22- A114-B) Rating -0.5 to +4.6 VSS-0.5 to VDD+0.5 VSS-0.5 to VDD+0.5 -55 to +125 260 150 2 Unit V V V C C C KV 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. Recommended Operating Conditions Parameter VDD TA CL CIN Operating Voltage Operating Temperature (Ambient Temperature) Load Capacitance Input Capacitance 5 Description Min 3.0 0 Typ 3.3 Max 3.6 +70 15 Unit V C pF pF Spread Spectrum Clock Generator Notice: The information in this document is subject to change without notice. 3 of 8 January 2007 rev 0.1 DC Electrical Characteristics Symbol VIL VIH IIL IIH IXOL IXOH VOL VOH ICC IDD VDD tON ZOUT CIN CL Input low voltage Input high voltage Input low current Input high current XOUT output low current ( VXOL @ 0.4V, VDD = 3.3V) XOUT output high current ( VXOH @ 2.5V, VDD = 3.3V) Output low voltage Output high voltage IOL = 12mA IOH = -12mA VSS 2.5 3 3 PCS3P2191A Parameter Min VSS - 0.3 2.0 Typ Max 0.8 VDD+ 0.3 -35 +35 Unit V V A A mA mA 0.4 VDD TBD TBD V V mA uA V mS pF Dynamic supply current , 60 MHz Output, no load Static supply current standby mode* Operating voltage Power up time (first locked clock cycle after power up)** Clock output impedance Input Capacitance Load Capacitance 3.0 3.3 TBD 5 3.6 5 15 pF *CLKIN pulled Low **VDD and CLKIN inputs are stable AC Electrical Characteristics Symbol XIN/ CLKIN CLKOUT tLH* tHL* tJC* tD* Input frequency Output frequency (Pin 5,6,11,12) Output rise time ( Measured from 20% to 80% ) Output fall time ( Measured from 80% to 20% ) Cycle to cycle Jitter Output duty cycle 45 Parameter Min Typ 15 60(SS) TBD TBD TBD 50 Max Unit MHz MHz nS nS pS 55 % *tLH and tHL are measured with a capacitive load of 15pF Spread Spectrum Clock Generator Notice: The information in this document is subject to change without notice. 4 of 8 January 2007 rev 0.1 Typical Crystal Oscillator Circuit PCS3P2191A Crystal R1 = 510 C1 C2 Typical Crystal Specifications Fundamental AT cut parallel resonant crystal Nominal frequency Frequency tolerance Operating temperature range Storage temperature Load capacitance Shunt capacitance ESR 15MHz 50 ppm or better at 25C -25C to +85C -40C to +85C 18pF 7pF maximum 25 Spread Spectrum Clock Generator Notice: The information in this document is subject to change without notice. 5 of 8 January 2007 rev 0.1 Package Information PCS3P2191A 16-lead Thin Shrunk Small Outline Package (4.40-MM Body) 8 1 PIN 1 ID E H 9 16 A Seating Plane L C e D A2 B A1 D Dimensions Symbol Min A A1 A2 B C D E e H L 0.020 0 0.002 0.031 0.007 0.004 0.193 0.169 0.026 BSC 0.252 BSC 0.030 8 0.50 0 Inches Max 0.043 0.006 0.041 0.012 0.008 0.201 0.177 0.05 0.80 0.19 0.09 4.90 4.30 Millimeters Min Max 1.20 0.15 1.05 0.30 0.20 5.10 4.50 0.65 BSC 6.40 BSC 0.75 8 Spread Spectrum Clock Generator Notice: The information in this document is subject to change without notice. 6 of 8 January 2007 rev 0.1 Ordering Codes Part Number PCS3P2191AG-16TT PCS3P2191AG-16TR PCS3P2191AF-16TT PCS3P2191AF-16TR PCS3P2191A Marking 3P2191AG 3P2191AG 3P2191AF 3P2191AF Package Type 16-Pin TSSOP, TUBE, Green 16-Pin TSSOP, TAPE & REEL, Green 16-Pin TSSOP, TUBE, Pb Free 16-Pin TSSOP, TAPE & REEL, Pb Free Temperature Commercial Commercial Commercial Commercial Device Ordering Information PCS3P2191AG-16TR R = Tape & Reel, T = Tube or Tray O = TSOT23 S = SOIC T = TSSOP A = SSOP V = TVSOP B = BGA Q = QFN U = MSOP E = TQFP L = LQFP U = MSOP P = PDIP D = QSOP X = SC-70 J=TSOT26 DEVICE PIN COUNT G = GREEN PACKAGE, LEAD FREE, and RoHS PART NUMBER X= Automotive I= Industrial P or n/c = Commercial (-40C to +125C) (-40C to +85C) (0C to +70C) 1 = Reserved 2 = Non PLL based 3 = EMI Reduction 4 = DDR support products 5 = STD Zero Delay Buffer 6 = Power Management 7 = Power Management 8 = Power Management 9 = Hi Performance 0 = Reserved PulseCore Semiconductor Mixed Signal Product Licensed under U.S Patent Nos 5,488,627 and 5,631,921 Spread Spectrum Clock Generator Notice: The information in this document is subject to change without notice. 7 of 8 January 2007 rev 0.1 PCS3P2191A PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 Tel: 408-879-9077 Fax: 408-879-9018 www.pulsecoresemi.com Copyright (c) PulseCore Semiconductor All Rights Reserved Part Number: PCS3P2191A Document Version: v0.1 Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003 (c) Copyright 2007 PulseCore Semiconductor Corporation. All rights reserved. Our logo and name are trademarks or registered trademarks of PulseCore Semiconductor. All other brand and product names may be the trademarks of their respective companies. PulseCore reserves the right to make changes to this document and its products at any time without notice. PulseCore assumes no responsibility for any errors that may appear in this document. The data contained herein represents PulseCore's best data and/or estimates at the time of issuance. PulseCore reserves the right to change or correct this data at any time, without notice. If the product described herein is under development, significant changes to these specifications are possible. The information in this product data sheet is intended to be general descriptive information for potential customers and users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or customer. PulseCore does not assume any responsibility or liability arising out of the application or use of any product described herein, and disclaims any express or implied warranties related to the sale and/or use of PulseCore products including liability or warranties related to fitness for a particular purpose, merchantability, or infringement of any intellectual property rights, except as express agreed to in PulseCore's Terms and Conditions of Sale (which are available from PulseCore). All sales of PulseCore products are made exclusively according to PulseCore's Terms and Conditions of Sale. The purchase of products from PulseCore does not convey a license under any patent rights, copyrights; mask works rights, trademarks, or any other intellectual property rights of PulseCore or third parties. PulseCore does not authorize its products for use as critical components in life-supporting systems where a malfunction or failure may reasonably be expected to result in significant injury to the user, and the inclusion of PulseCore products in such life-supporting systems implies that the manufacturer assumes all risk of such use and agrees to indemnify PulseCore against all claims arising from such use. Spread Spectrum Clock Generator Notice: The information in this document is subject to change without notice. 8 of 8 |
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