P2040A November 2006 rev 1.3 LCD Panel EMI Reduction IC Features modulator designed specifically for digital flat panel • FCC approved method of EMI attenuation. interference (EMI) at the clock source, allowing system • Provides up to 20dB of EMI suppression. wide reduction of EMI of down stream clock and data • Generates a low EMI spread spectrum clock of dependent signals. The P2040A allows significant system applications. The P2040A reduces electromagnetic the input frequency. cost savings by reducing the number of circuit board • Input frequency range: 30MHz to 100MHz. layers ferrite beads, • 3.3v Operating Voltage components that are traditionally required to pass EMI • Optimized for VGA, SVGA, and higher shielding and other passive regulations. resolution XGA LCD Panels. • Internal loop filter minimizes external The P2040A uses the most efficient and optimized components and board space. modulation profile approved by the FCC and is • Six selectable high spread ranges up to ± 2%. implemented in a proprietary all digital method. • Two selectable modulation rates. • SSON# control pin for spread spectrum enable and disable options. Low cycle-to-cycle jitter. • Wide operating range. • Low power CMOS design. • Supports its harmonics. This results in significantly lower system mobile EMI compared to the typical narrow band signal graphic accelerator specifications. • Products available for automotive temperature range. (Refer Spread Spectrum Range Selection Tables) • order to “spread” the bandwidth of a synthesized clock, and more importantly, decreases the peak amplitudes of • most The P2040A modulates the output of a single PLL in Available in 8-pin SOIC and TSSOP Packages. produced by oscillators and most frequency generators. Lowering EMI by increasing a signal’s bandwidth is called ‘spread spectrum clock generation’. Applications The P2040A is targeted towards digital flat panel applications for notebook PCs, palm-size PCs, office Product Description The P2040A is a versatile spread spectrum frequency automation equipments and LCD monitors. SR0 SR1 MRA SSON# Block Diagram VDD PLL Modulation CLKIN Frequency Divider Feedback Divider Phase Detector Loop Filter VCO Output Divider ModOUT VSS 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. P2040A November 2006 rev 1.3 Pin Configuration CLKIN 1 MRA 2 SR1 VSS 8 VDD 7 SR0 3 6 ModOUT 4 5 SSON# P2040A Pin Description Pin# Pin Name Type 1 CLKIN I External reference frequency input. Connect to externally generated reference signal. 2 MRA I Digital logic input used to select modulation rate. This pin has an internal pull-up resistor. 3 SR1 I Digital logic input used to select Spreading Range. This pin has an internal pull-up resistor. 4 VSS P Ground to entire chip. Connect to system ground. 5 SSON# I Digital logic input used to enable Spread Spectrum function (Active LOW). Spread Spectrum function enabled when LOW, disabled when HIGH. This pin has an internal pull-low resistor. 6 ModOUT O Spread spectrum clock output. 7 SR0 I Digital logic input used to select Spreading Range. This pin has an internal pull-up resistor. 8 VDD P Power supply for the entire chip (3.3V) Description Modulation Selection (Commercial) MRA SR1 SR0 Spreading Range Modulation Rate (KHz) 0 0 0 ± 1.125 (FIN /40) * 34.72KHz 0 0 1 ± 1.75 (FIN /40) * 34.72KHz 0 1 0 ± 0.75 (FIN /40) * 34.72KHz 0 1 1 ± 1.25 (FIN /40) * 34.72KHz 1 0 0 ± 1.25 (FIN /40) * 20.83KHz 1 0 1 ± 2.00 (FIN /40) * 20.83KHz 1 1 0 Reserved Reserved 1 1 1 Reserved Reserved LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 2 of 9 P2040A November 2006 rev 1.3 Spread Range Selection at 50MHz (Automotive) MRA SR1 SR0 Spreading Range Modulation Rate 0 0 0 ± 1.25 (FIN/40) * 34.72KHz 0 0 1 ± 2.00 (FIN/40) * 34.72KHz 0 1 0 ± 1.00 (FIN/40) * 34.72KHz 0 1 1 ± 1.50 (FIN/40) * 34.72KHz 1 0 0 ± 1.25 (FIN/40) * 20.83KHz 1 0 1 ± 2.00 (FIN/40) * 20.83KHz 1 1 0 ± 1.25 (FIN/40) * 20.83KHz 1 1 1 ± 2.00 (FIN/40) * 20.83KHz Spread Range Selection at 70MHz (Automotive) MRA SR1 SR0 Spreading Range Modulation Rate 0 0 0 ± 1.00 (FIN/40) * 34.72KHz 0 0 1 ± 1.50 (FIN/40) * 34.72KHz 0 1 0 ± 0.70 (FIN/40) * 34.72KHz 0 1 1 ± 1.00 (FIN/40) * 34.72KHz 1 0 0 ± 1.15 (FIN/40) * 20.83KHz 1 0 1 ± 2.00 (FIN/40) * 20.83KHz 1 1 0 ± 1.15 (FIN/40) * 20.83KHz 1 1 1 ± 1.75 (FIN/40) * 20.83KHz LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 3 of 9 P2040A November 2006 rev 1.3 Spread Spectrum Selection The Modulation Selection Table defines the possible spread spectrum options. The optimal setting should minimize system EMI to the fullest without affecting system performance. The spreading is described as a percentage deviation of the center frequency. (Note: The center frequency is the frequency of the external reference input on CLKIN, pin1). For example, P2040A is designed for high-resolution, flat panel applications and is able to support an XGA (1024 x 768) flat panel operating at 65MHz (FIN) clock speed. A spreading selection of MRA=0, SR1=1 and SR0=0 provides a percentage deviation of ±0.75% from FIN. This results in the frequency on ModOUT being swept from 64.51MHz to 65.49MHz at a modulation rate of 56.24KHz. Refer Modulation Selection Table. The example in the following illustration is a common EMI reduction method for a notebook LCD panel and has already been implemented by most of the leading OEM and mobile graphic accelerator manufacturers. Application Schematic for Mobile LCD Graphics Controllers +3.3V 65MHz from graphics accelerator 1 CLKIN VDD 8 2 MRA SR0 7 3 SR1 ModOUT 6 4 VSS 0.1µF Modulated 65MHz signal with ±0.75 deviation and modulation rate of 56.24KHz. This signal is connected back to the spread spectrum input pin (SSIN) of the graphics accelerator. SSON# 5 P2040A Digital control for the SS enable or disable LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 4 of 9 P2040A November 2006 rev 1.3 Absolute Maximum Ratings Symbol VDD, VIN Parameter Rating Unit Voltage on any pin with respect to Ground -0.5 to +4.6 V Storage temperature -65 to +125 °C TA Operating temperature -40 to +125 °C 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 TSTG 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 (Test condition: All parameters are measured at room temperature (+25°C) unless otherwise stated) Symbol Parameter VIL Input low voltage VIH Input high voltage Input low current (pull-up resistor on inputs SR0, SR1 and MRA) Input high current (pull-down resistor on input SSON#) IIL IIH Min Typ Max Unit VSS - 0.3 - 0.8 V 2.0 - VDD + 0.3 V -35 - - µA - - 35 µA VOL Output low voltage (VDD = 3.3V, IOL = 20mA) - - 0.4 V VOH Output high voltage (VDD = 3.3V, IOH = 20mA) 2.5 - - V IDD Static supply current standby mode - 0.6 - mA ICC Dynamic supply current (3.3V and 10pF loading) 7 10 13 mA VDD tON ZOUT Operating voltage 2.7 3.3 3.7 V Power-up time (first locked cycle after power up) - 0.18 - mS Clock output impedance - 50 - Ω AC Electrical Characteristics Symbol Min Typ Max Unit Input frequency 30 - 100 MHz fOUT Output frequency 30 - 100 MHz tLH* Output rise time (measured at 0.8V to 2.0V) 0.7 0.9 1.1 nS tHL* Output fall time (measured at 2.0V to 0.8V) 0.6 0.8 1.0 nS tJC Jitter (cycle to cycle) - - 360 pS tD Output duty cycle 45 50 55 % fIN Parameter *tLH and tHL are measured into a capacitive load of 15pF LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 5 of 9 P2040A November 2006 rev 1.3 Package Information 8-lead (150-mil) 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° LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 6 of 9 P2040A November 2006 rev 1.3 8-lead TSSOP (4.40-MM Body) 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° LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 7 of 9 P2040A November 2006 rev 1.3 Ordering Information Part number Marking Package Type Temperature P2040AF-08-ST P2040AF 8-Pin SOIC, Tube, Pb Free Commercial P2040AF-08-SR P2040AF 8-Pin SOIC, Tape and Reel, Pb Free Commercial P2040AF-08-TT P2040AF 8-Pin TSSOP, Tube, Pb Free Commercial P2040AF-08-TR P2040AF 8-Pin TSSOP, Tape and Reel, Pb Free Commercial P2040AG-08-ST P2040AG 8-Pin SOIC, Tube, Green Commercial P2040AG-08-SR P2040AG 8-Pin SOIC, Tape and Reel, Green Commercial P2040AG-08-TT P2040AG 8-Pin TSSOP, Tube, Green Commercial P2040AG-08-TR P2040AG 8-Pin TSSOP, Tape and Reel, Green Commercial I2040AF-08-ST I2040AF 8-Pin SOIC, Tube, Pb Free Industrial I2040AF-08-SR I2040AF 8-Pin SOIC, Tape and Reel, Pb Free Industrial I2040AF-08-TT I2040AF 8-Pin TSSOP, Tube, Pb Free Industrial I2040AF-08-TR I2040AF 8-Pin TSSOP, Tape and Reel, Pb Free Industrial I2040AG-08-ST I2040AG 8-Pin SOIC, Tube, Green Industrial I2040AG-08-SR I2040AG 8-Pin SOIC, Tape and Reel, Green Industrial I2040AG-08-TT I2040AG 8-Pin TSSOP, Tube, Green Industrial I2040AG-08-TR I2040AG 8-Pin TSSOP, Tape and Reel, Green Industrial X2040AF-08-ST I2040AF 8-Pin SOIC, Tube, Pb Free X2040AF-08-SR I2040AF 8-Pin SOIC, Tape and Reel, Pb Free Automotive Automotive X2040AF-08-TT I2040AF 8-Pin TSSOP, Tube, Pb Free Automotive X2040AF-08-TR I2040AF 8-Pin TSSOP, Tape and Reel, Pb Free Automotive X2040AG-08-ST I2040AG 8-Pin SOIC, Tube, Green Automotive X2040AG-08-SR I2040AG 8-Pin SOIC, Tape and Reel, Green Automotive X2040AG-08-TT I2040AG 8-Pin TSSOP, Tube, Green Automotive X2040AG-08-TR I2040AG 8-Pin TSSOP, Tape and Reel, Green Automotive Device Ordering Information P 2 0 4 0 A F - 0 8 S T SR - SOIC, T/R TT – TSSOP, TUBE TR - TSSOP, T/R ST – SOIC, TUBE 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) X=Automotive Temperature Range (-40 to125°C) Licensed under U.S Patent Nos 5,488,627 and 5,631,921 LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 8 of 9 P2040A November 2006 rev 1.3 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 Preliminary Information Part Number: P2040A Document Version: v1.3 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. LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 9 of 9