P2040B November 2006 rev 0.2 LCD Panel EMI Reduction IC Features reducing the number of circuit board layers and shielding • Provides up to 15dB of EMI suppression • FCC approved method of EMI attenuation • that are traditionally required to pass EMI regulations. Generates a low EMI spread spectrum clock of the The P2040B uses the most efficient and optimized input frequency modulation • 30MHz to 100MHz input frequency range implemented in a proprietary all digital method. • Optimized for 32.5MHz, 54MHz, 65MHz, 81MHz, profile approved by the FCC and is pixel clock frequencies The P2040B modulates the output of a single PLL in order Internal loop filter minimizes external components to “spread” the bandwidth of a synthesized clock and, more and board space importantly, • 8 selectable spread ranges, up to +/- 2.0% harmonics. • SSON# control pin for spread spectrum enable • decreases the peak amplitudes of its and disable options This results in significantly lower system EMI compared to • Low cycle-to-cycle jitter the typical narrow band signal produced by oscillators and • 3.3V operating voltage most frequency generators. Lowering EMI by increasing a • Ultra low power CMOS design signal’s bandwidth is called “spread spectrum clock • Supports most mobile graphic accelerator and generation”. LCD timing controller specifications • Available in 8 pin SOIC and TSSOP Packages. Product Description The P2040B is targeted towards digital flat panel The P2040B is a selectable spread spectrum frequency modulator designed specifically for digital flat panel applications. The P2040B Applications reduces applications for Notebook PCs, Palm-size PCs, Office Automation Equipments and LCD Monitors. electromagnetic interference (EMI) at the clock source which provides system wide reduction of EMI of all clock dependent signals. The P2040B allows significant system cost savings by SR0 CP1 CP0 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. P2040B November 2006 rev 0.2 Pin Configuration 8 VDD 7 SR0 3 6 ModOUT 4 5 SSON# CLKIN 1 CP0 2 CP1 VSS P2040B Deviations and Modulation Rate Table CP0 CP1 SR0 0 0 0 Spreading Range (+/- %) Modulation Rate 32.5MHz 54MHz 65MHz 81MHz 0 0.56 1.05 1.00 0.98 (Fin/40) * 62.49KHz 0 1 1.94 1.68 1.56 1.48 (Fin/40) * 62.49KHz 0 1 0 1.36 1.05 1.00 0.92 (Fin/40) * 62.49KHz 0 1 1 1.92 1.68 1.56 1.48 (Fin/40) * 62.49KHz 1 0 0 1.24 0.81 0.66 0.40 (Fin/40) * 62.49KHz 1 0 1 1.91 1.29 1.02 0.74 (Fin/40) * 62.49KHz 1 1 0 0.91 0.45 0.34 0.05 (Fin/40) * 62.49KHz 1 1 1 1.47 0.71 0.54 0.36 (Fin/40) * 62.49KHz Pin Description Pin# Pin Name Type Description 1 CLKIN I 2 CP0 I 3 CP1 I 4 VSS P Ground Connection. Connect to system ground. External reference frequency input. Connect to externally generated reference signal. Digital logic input used to select charge pump current (see Table 1). This pin has a 100K Ohm internal pull-up resistor. Digital logic input used to select charge pump current (see Table 1). This pin has a 100K Ohm internal pull-up resistor. 5 SSON# I Digital logic input used to enable Spread Spectrum function (Active LOW). Spread Spectrum function enable when LOW. This pin has a 100K Ohm internal pull-low resistor. 6 ModOUT O Spectrum Clock output 7 SR0 I Digital logic input used to select Spreading Range (see Table 1) This pin has a 100K Ohm internal pull-up resistor. 8 VDD P Connect to +3.3V LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 2 of 8 P2040B November 2006 rev 0.2 Spread Spectrum Selection Table 1 illustrates 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, Pin 1). Example: P2040B is designed for high resolution flat panel applications and is able to support panel frequencies from 30MHz to 100MHz. For a 65MHz pixel clock frequency, a spreading selection of CP0 = 0,CP1=1 and SR0=1 gives a percentage deviation of +/-1.56% (see Table 1). This results in frequency on ModOUT being swept from 64.5MHz to 65.5MHz. This particular example given here is a common EMI reduction method for 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 1 CLKIN VDD 8 2 CP0 SR0 7 3 CP1 ModOUT 6 4 VSS SSON# 0.1 µF Modulation 65MHz signal with +/- 1.56% Deviation and Modulation Rate of 101.54 KHz. This signal is connected back to the Spread Spectrum input Pin (SSIN) of the Graphics Accelerator. 5 P2040B Digital control for SS enable or disable Absolute Maximum Ratings Symbol Parameter Rating Unit VDD, VIN 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 +85 °C Ts Max. Soldering Temperature (10 sec) 260 °C TJ Junction Temperature 150 °C 2 KV TSTG TDV Static Discharge Voltage (As per JEDEC STD22- 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. LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 3 of 8 P2040B November 2006 rev 0.2 DC Electrical Characteristics Symbol Parameter Min Typ Max Unit VIL Input Low voltage VSS – 0.3 - 0.8 V VIH Input High voltage 2.0 - VDD + 0.3 V - - -35 µA - - 35 µA Input Low current (100KΩ input pull-up resistor on inputs SR0, CP1and CP0) Input High current (100KΩ input pull-low resistor on input SSON#) IIL IIH VOL Output Low current VDD = 3.3V, IOL = 20mA - - 0.4 V VOH Output High current VDD = 3.3V, IOH = 20mA 2.5 - - V IDD Static Supply Current - 0.6 - mA ICC Dynamic Supply Current (3.3V and 15pF loading) 9 16 22 mA VDD Operating Voltage 3.0 3.3 3.6 V tON Power up time (first locked clock cycle after power up) - 0.18 - mS Clock Output impedance - 50 - Ω ZOUT AC Electrical Characteristics Symbol Min Typ Max Unit Input Frequency 30 - 100 MHz fOUT Output Frequency 30 - 100 MHz tLH1 Output Rise time Measured at 0.8V to 2.0V 0.7 0.9 1.1 nS Output Fall time Measured at 2.0V to 0.8V 0.6 0.8 1.0 nS - 360 - pS 45 50 55 % fIN tHL 1 Parameter tJC Jitter (cycle to cycle) tD Output Duty cycle Note: 1. 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. 4 of 8 P2040B November 2006 rev 0.2 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. 5 of 8 P2040B November 2006 rev 0.2 8-lead Thin 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. 6 of 8 P2040B November 2006 rev 0.2 Ordering Information Part number P2040BF-08-ST Marking P2040BF Package Configuration Temperature Range 8-Pin SOIC, Tube, Pb Free Commercial P2040BF-08-SR P2040BF 8-Pin SOIC, Tape and Reel, Pb Free Commercial P2040BG-08-ST P2040BG 8-Pin SOIC, Tube, Green Commercial P2040BG-08-SR P2040BG 8-Pin SOIC, Tape and Reel, Green Commercial P2040BF-08-TT P2040BF 8-Pin TSSOP, Tube, Pb Free Commercial P2040BF-08-TR P2040BF 8-Pin TSSOP, Tape and Reel, Pb Free Commercial P2040BG-08-TT P2040BG 8-Pin TSSOP, Tube, Green Commercial P2040BG-08-TR P2040BG 8-Pin TSSOP, Tape and Reel, Green Commercial I2040BF-08-TT I2040BF 8-Pin TSSOP, Tube, Pb Free Industrial I2040BF-08-TR I2040BF 8-Pin TSSOP, Tape and Reel, Pb Free Industrial I2040BG-08-TT I2040BG 8-Pin TSSOP, Tube, Green Industrial I2040BG-08-TR I2040BG 8-Pin TSSOP, Tape and Reel, Green Industrial I2040BF-08-ST I2040BF 8-Pin SOIC, Tube, Pb Free Industrial I2040BF-08-SR I2040BF 8-Pin SOIC, Tape and Reel, Pb Free Industrial I2040BG-08-ST I2040BG 8-Pin SOIC, Tube, Green Industrial I2040BG-08-SR I2040BG 8-Pin SOIC, Tape and Reel, Green Industrial Device Ordering Information P 2 0 4 0 B 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 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) Licensed under US patent #5,488,627, #6,646,463 and #5,631,920. LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 7 of 8 P2040B November 2006 rev 0.2 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: P2040B Document Version: v0.2 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. 8 of 8