P2180 / 81 / 82 / 83 / 84 November 2006 rev 1.1 Peak Reducing EMI Solution Features • FCC approved method of EMI attenuation. • Provides up to 15dB EMI reduction. • Generates a 1X low EMI spread spectrum clock • 3.3V operating voltage. from the input frequency. • CMOS/TTL compatible inputs and outputs. Optimized for frequency range: • Low-power CMOS design. • Supports notebook VGA and other LCD timing • • • P2180 / 84: 20MHz to 40MHz • P2181: 60MHz to 160MHz • P2182 / 83: 10MHz to 20MHz Internal loop filter minimizes • • ± 0.625% to -3.5%. controller applications. external • Drop-in replacement to Cypress W180/1. • Products are available for industrial temperature components and board space. • Eight spread % selections: Selectable spread options: Down Spread and range. • Available in 8-pin SOIC and TSSOP packages. Center Spread. • Low inherent cycle-to-cycle jitter. Product Description The P2180/81X is a versatile spread spectrum frequency modulator designed specifically for a wide range of clock frequencies from 20MHz to 40MHz and 60MHz to 160MHz (Refer Input Frequency and Modulation Rate Table.) The P2180/81X can generate an EMI reduced clock form an OSC or a system generated clock. The P2180/81A to P2180/81D offer various combinations of spread options and percentage deviations. (Refer Spread Deviation Selections Table.) These combinations include Down and Center Spread and percentage deviation range from ± 0.625% to –3.50%. The P2180/81X reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The P2180/81X allows significant system cost savings by reducing the number of circuit board layers and shielding that are traditionally required to pass EMI regulations. The P2180/81X modulates the output of a single PLL in order to “spread” the bandwidth of a synthesized clock, thereby decreasing the peak amplitudes of its harmonics. This results in significantly lower system EMI compared to the typical narrow band signal produced by oscillators and most clock generators. Lowering EMI by increasing a signal’s bandwidth is called spread spectrum clock generation. The P2180/81X uses the most efficient and optimized modulation profile approved by the FCC and is implemented by using a proprietary all-digital method. Applications The P2180/81X is targeted towards EMI management for memory and LVDS interfaces in mobile graphic chipsets and high-speed digital applications such as PC peripheral devices, consumer electronics, and embedded controller systems. 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. P2180 / 81 / 82 / 83 / 84 November 2006 rev 1.1 Block Diagram SRS VDD PLL Modulation XIN Crystal Oscillator Frequency Divider Phase Detector XOUT Feedback Divider Loop Filter Output Divider VCO ModOUT VSS Pin Diagram XIN 1 NC 2 VSS 3 NC XIN 1 7 NC NC 2 8 P2180X P2181X P2182X SRS 4 6 VDD VSS 3 5 ModOUT SRS 4 8 P2183X P2184X XOUT 7 NC 6 VDD 5 ModOUT Pin Description Pin# Pin Name Type 1 XIN I Description 2 NC 3 VSS P 4 SRS I 5 ModOUT O Ground to entire chip. Spread Range Select. Digital logic input used to select frequency deviation (Refer Spread Deviation Selections Table). This pin has an internal pull-up resistor. Spread spectrum low EMI output. 6 VDD P Connect to +3.3V. 7 NC No connect. 8 NC No connect. 8* XOUT Connect to externally generated clock signal or crystal. No connect. O Crystal connection. * Available for P2183 and P2184 only. Low EMI Clock for Mobile VGA Notice: The information in this document is subject to change without notice. 2 of 9 P2180 / 81 / 82 / 83 / 84 November 2006 rev 1.1 Input Frequency and Modulation Rate Part Number Input Frequency Range (MHz) Output Frequency Range (MHz) Modulation Rate P2180/P2184 20 to 40 20 to 40 Input frequency / 768 P2181 60 to 160 60 to 160 Input frequency / 2048 P2182/P2183 10 to 20 10 to 20 TBD Spread Deviation Selections Part Number P2180/1/2/3/4 A P2180/1/2/3/4 B P2180/1/2/3/4 C P2180/1/2/3/4 D SRS Spread Deviation 0 -1.25% (Down) 1 -1.75% (Down) 0 ± 1.25% (Center) 1 ± 1.75% (Center) 0 -2.50% (Down) 1 -3.50 (Down) 0 ± 0.625%(Center) 1 ± 0.875% (Center) Absolute Maximum Ratings Symbol VDD, VIN TSTG Parameter Rating Unit Voltage on any pin with respect to Ground -0.5 to +4.6 V Storage temperature -65 to +125 °C 0 to +70 °C TA Operating temperature Ts Max. Soldering Temperature (10 sec) 260 °C TJ Junction Temperature 150 °C TDV Static Discharge Voltage (As per JEDEC STD22- A114-B) 2 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. Low EMI Clock for Mobile VGA Notice: The information in this document is subject to change without notice. 3 of 9 P2180 / 81 / 82 / 83 / 84 November 2006 rev 1.1 DC Electrical Characteristics Unless otherwise noted, VDD = 3.3V and TA =25°C Symbol Parameter Min Typ Max Unit VIL Input low voltage GND – 0.3 - 0.8 V VIH Input high voltage - - VDD + 0.3 V -60.0 - -20.0 µA - - 1.00 µA IIL Input low current (input SRS) IIH Input high current IXOL XOUT output low current (@ 0.4V, VDD = 3.3V) 2.00 - 12.00 mA IXOH XOUT output high current (@2.5V, VDD = 3.3V) - - 12.00 mA VOL Output low voltage (VDD = 3.3V, IOL = 20mA) VOH Output high voltage (VDD = 3.3V, IOH = 20mA) Dynamic supply current normal mode (3.3V and 10pF loading) Static supply current standby mode ICC IDD VDD tON ZOUT - - 0.4 V 2.8 - - V 8.6 fIN - min - 27.0 fIN - max mA - 4.5 - mA - 3.3 - V - - - mS - - - Ω Operating voltage Power up time (first locked clock cycle after power up) Clock output impedance AC Electrical Characteristics Symbol fIN fOUT Parameter Min Typ Max Unit Input frequency 10 - 160 MHz Output frequency 10 - 160 MHz tLH* Output rise time (measured at 0.8V to 2.0V) - 0.69 - ns tHL* Output fall time (measured at 2.0V to 0.8V) - 0.66 - ns tJC Jitter (cycle to cycle) -200 - 200 ps tD Output duty cycle 45 50 55 % * tLH and tHL are measured into a capacitive load of 15pF Low EMI Clock for Mobile VGA Notice: The information in this document is subject to change without notice. 4 of 9 P2180 / 81 / 82 / 83 / 84 November 2006 rev 1.1 Package Information 8-Pin SOIC Package H E D A2 A C A1 D θ e L B Dimensions Symbol Inches Min Max Millimeters Min Max A1 0.004 0.010 0.10 0.25 A 0.053 0.069 1.35 1.75 A2 0.049 0.059 1.25 1.50 B 0.012 0.020 0.31 0.51 C 0.007 0.010 0.18 0.25 D 0.193 BSC 4.90 BSC E 0.154 BSC 3.91 BSC e 0.050 BSC 1.27 BSC H 0.236 BSC 6.00 BSC L 0.016 0.050 0.41 1.27 θ 0° 8° 0° 8° Note: Controlling dimensions are millimeters. SOIC: 0.074 grams unit weight. Low EMI Clock for Mobile VGA Notice: The information in this document is subject to change without notice. 5 of 9 P2180 / 81 / 82 / 83 / 84 November 2006 rev 1.1 8-Pin TSSOP H E D A2 A C θ e A1 L B Dimensions Symbol Inches Min Millimeters Max A Min Max 0.043 1.10 A1 0.002 0.006 0.05 0.15 A2 0.033 0.037 0.85 0.95 B 0.008 0.012 0.19 0.30 c 0.004 0.008 0.09 0.20 D 0.114 0.122 2.90 3.10 E 0.169 0.177 4.30 4.50 e 0.026 BSC 0.65 BSC H 0.252 BSC 6.40 BSC L 0.020 0.028 0.50 0.70 θ 0° 8° 0° 8° Low EMI Clock for Mobile VGA Notice: The information in this document is subject to change without notice. 6 of 9 P2180 / 81 / 82 / 83 / 84 November 2006 rev 1.1 Ordering Information Part number Marking Package Type Temperature P218XxF-08-ST P2181XxF 8-Pin SOIC, Tube, Pb Free Commercial P218XxF-08-SR P2181XxF 8-Pin SOIC, Tape and Reel, Pb Free Commercial P218XxF-08-TT P2181XxF 8-Pin TSSOP, Tube, Pb Free Commercial P218XxF-08-TR P2181XxF 8-Pin TSSOP, Tape and Reel, Pb Free Commercial P218XxG-08-ST P2181XxG 8-Pin SOIC, Tube, Green Commercial P218XxG-08-SR P2181XxG 8-Pin SOIC, Tape and Reel, Green Commercial P218XxG-08-TT P2181XxG 8-Pin TSSOP, Tube, Green Commercial P218XxG-08-TR P2181XxG 8-Pin TSSOP, Tape and Reel, Green Commercial Note: X= 0 / 1 / 2 / 3 / 4 x= A / B / C / D Device Ordering Information P 218X x F - 08 ST SR - SOIC, T/R TT – TSSOP, TUBE TR - TSSOP, T/R ST – SOIC, TUBE DEVICE PIN COUNT F = LEAD FREE AND RoHS COMPLIANT PART G = GREEN PACKAGE, LEAD FREE, and RoHS Deviation (%) and Spread option Identifier DEVICE NUMBER P = Commercial Temperature Range (0°C to 70°C) I = Industrial Temperature Range (-40°C to 85°C) Low EMI Clock for Mobile VGA Notice: The information in this document is subject to change without notice. 7 of 9 P2180 / 81 / 82 / 83 / 84 November 2006 rev 1.1 Licensed under US patent numbers 5,488,627 and 5,631,920. Low EMI Clock for Mobile VGA Notice: The information in this document is subject to change without notice. 8 of 9 P2180 / 81 / 82 / 83 / 84 November 2006 rev 1.1 PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 Tel: 408-879-9077 Fax: 408-879-9018 www.pulsecoresemi.com Copyright © PulseCore Semiconductor All Rights Reserved Part Number: P2180/81/82/83/84 Document Version: v1.1 Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003 © Copyright 2006 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. Low EMI Clock for Mobile VGA Notice: The information in this document is subject to change without notice. 9 of 9