ASM3P2182A August 2007 rev 1.5 LCD Panel EMI Reduction IC Features The ASM3P2182A reduces electromagnetic interference • FCC approved method of EMI attenuation. • Provides up to 15dB EMI reduction. • Generates a 1X low EMI spread spectrum clock of (EMI) at the clock source, allowing system wide the input frequency. Input frequency range: 25MHz to 210MHz. • Internal loop filter minimizes external components and board space. Center spread. • 4 spread frequency deviation selections: ± 0.13% to ± 1.24%. Low inherent Cycle-to-cycle jitter. • 3.3V Operating Voltage. • TTL or CMOS compatible inputs and outputs. • Low power CMOS design. • Supports notebook VGA and other LCD timing amplitudes of its harmonics. This results in significantly lower system EMI compared to the typical narrow band signal produced by oscillators and most frequency generators. Lowering EMI by increasing a signal’s bandwidth is called ‘spread spectrum clock generation’. Available in 8-pin SOIC and TSSOP Packages. Applications Product Description The ASM3P2182A is a versatile spread spectrum frequency modulator designed specifically for a wide range of input clock frequencies from 25MHz to 210MHz. (Refer Input Frequency and Modulation Rate Table). The ASM3P2182A can generate an EMI reduced clock from system modulation profile approved by the FCC and is clock, and more importantly, decreases the peak range. a The ASM3P2182A uses the most efficient and optimized The ASM3P2182A modulates the output of a single PLL Products are available for Industrial temperature or components that are traditionally required to pass EMI in order to “spread” the bandwidth of a synthesized controller applications. OSC board layers ferrite beads, shielding and other passive implemented in a proprietary all digital method. • an dependent signals. The ASM3P2182A allows significant regulations. • • down stream clock and data system cost savings by reducing the number of circuit • • reduction of EMI of generated clock. The ASM3P2182A 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. The ASM3P2182A offers a Center Spread clock and with a percentage deviation from ± 0.13% or ± 1.24%. FS0 FS1 S0 VDD PLL Modulation CLKIN Crystal Oscillator Frequency Divider Feedback Divider Phase Detector Loop Filter VCO Output Divider ModOUT VSS LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 1 of 8 ASM3P2182A August 2007 rev 1.5 Pin Configuration CLKIN 1 GND 2 8 FS1 ASM3P2182A 7 FS0 S1 3 6 VDD S0 4 5 ModOUT Pin Description Pin# Pin Name Type Description 1 CLKIN I Connect to externally generated clock signal. 2 GND P 3 S1 I 4 S0 I 5 ModOUT O Ground to entire chip. 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. Spread spectrum low EMI output. 6 VDD P 7 FS0 I 8 FS1 I Power supply for the entire chip (3.3V). Frequency range select. Digital logic input used to select frequency range (Refer Input Frequency and Modulation Rate Table). This pin has an internal pull-up resistor. Frequency range select. Digital logic input used to select frequency range (Refer Input Frequency and Modulation Rate Table). This pin has an internal pull-up resistor. Input Frequency and Modulation Rate table FS1 (pin 8) FS0 (pin 7) Frequency Range 0 0 25MHz to 50MHz 0 1 50MHz to 103MHz 1 0 75MHz to 150MHz 1 1 160MHz to 210MHz LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 2 of 8 ASM3P2182A August 2007 rev 1.5 Spread Deviation Selection table S1 S0 25 MHz 40 MHz 65 MHz Spreading Range (± %) 81* 81** 108 MHz MHz MHz 0 0 0.28 0.19 0.15 0.12 0.18 0 1 0.8 0.3 0.3 0.2 0.5 1 0 1.2 0.54 0.45 0.4 1 1 2.1 1.0 1.1 0.9 120 MHz 162 MHz 200 MHz 0.15 0.1 0.1 0.06 0.3 0.19 0.3 0.1 0.8 0.6 0.36 1.0 0.6 1.4 1.1 0.75 1.9 1.2 *Frequency Range- 50MHz to 103MHz ** Frequency Range- 75MHz to 150MHz Absolute Maximum Ratings Symbol Rating Unit -0.5 to +4.6 V Input Voltage pin with respect to Ground VSS-0.5 to VDD+0.5 V VOUT Output Voltage pin with respect to Ground VSS-0.5 to VDD+0.5 V TSTG Storage temperature -55 to +125 °C VDD VIN Parameter Supply Voltage pin with respect to Ground 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. Recommended Operating Conditions Parameter VDD Description Operating Voltage TA Operating Temperature (Ambient Temperature) CL Load Capacitance CIN Input Capacitance Min Typ 2.7 3.3 0 5 LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. Max Unit 3.7 V +70 °C 15 pF pF 3 of 8 ASM3P2182A August 2007 rev 1.5 DC Electrical Characteristics Symbol Parameter Min Typ Max Unit VIL Input low voltage GND – 0.3 0.8 V VIH Input high voltage 2.0 VDD + 0.3 V IIL Input low current -35 µA IIH Input high current 35 µA Output low voltage (VDD = 3.3V, IOL = 20mA) 0.4 V VOL 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 2.5 V 8.46 Operating voltage 12 0.6 2.7 3.3 Power up time (first locked clock cycle after power up) Clock out impedance tON ZOUT 17.78 mA mA 3.7 V 0.18 mS 50 Ω * CLKIN pin is pulled low AC Electrical Characteristics Symbol CLKIN Parameter Min Typ Max Unit Input frequency 25 210 MHz Output frequency 25 210 MHz tLH* Output rise time (measured at 0.8V to 2.0V) 1.2 1.32 1.4 nS tHL* Output fall time (measured at 2.0V to 0.8V) 0.8 0.9 1.0 nS tJC Jitter (cycle to cycle) 360 pS TD Output duty cycle 55 % ModOUT 45 50 *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 ASM3P2182A August 2007 rev 1.5 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 ASM3P2182A August 2007 rev 1.5 8-lead Thin Shrunk Small Outline Package (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 ASM3P2182A August 2007 rev 1.5 Ordering Information Part Number Marking ASM3P2182AF-08TT 3P2182AF 8-Pin TSSOP, TUBE, Pb Free Package Temperature Commercial ASM3P2182AF-08TR 3P2182AF 8-Pin TSSOP, TAPE & REEL, Pb Free Commercial ASM3P2182AF-08ST 3P2182AF 8-Pin SOIC, TUBE, Pb Free Commercial ASM3P2182AF-08SR 3P2182AF 8-Pin SOIC, TAPE & REEL, Pb Free Commercial ASM3P2182A-08TT 3P2182A 8-Pin TSSOP, TUBE Commercial ASM3P2182A-08TR 3P2182A 8-Pin TSSOP, TAPE & REEL Commercial ASM3P2182A-08ST 3P2182A 8-Pin SOIC, TUBE Commercial ASM3P2182A-08SR 3P2182A 8-Pin SOIC, TAPE & REEL Commercial ASM3P2182AG-08TT 3P2182AG 8-Pin TSSOP, TUBE, Green Commercial ASM3P2182AG-08TR 3P2182AG 8-Pin TSSOP, TAPE & REEL, Green Commercial ASM3P2182AG-08ST 3P2182AG 8-Pin SOIC, TUBE, Green Commercial ASM3P2182AG-08SR 3P2182AG 8-Pin SOIC, TAPE & REEL, Green Commercial Device Ordering Information ASM 3P 2182A F 08 TR R = Tape & Reel, T = Tube or Tray O = SOT 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 DEVICE PIN COUNT F = LEAD FREE AND RoHS COMPLIANT PART G = GREEN PACKAGE 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 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 ASM3P2182A August 2007 rev 1.5 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: ASM3P2182A Document Version: 1.5 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