ASM3P2107AG-08-TT

November 2006 rev 0.4 Peak EMI Reducing Solution Features • • • • • • • • • ASM3P2107A savings by reducing the number of circuit board layers ferrite beads, shielding and other passive components that are traditionally required to pass EMI regulations. The ASM3P2107A uses the most efficient and optimized modulation profile approved by the FCC and is implemented in a proprietary all digital method. The ASM3P2107A modulates the output of a single PLL in order to “spread” the bandwidth of a synthesized clock, and more importantly, decreases 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 frequency generators. Lowering EMI by increasing a signal’s bandwidth is called ‘spread spectrum clock generation’. FCC approved method of EMI attenuation. Generates a 1X low EMI spread spectrum clock of the input frequency. Input frequency range: 12MHz to 22MHz. Internal loop filter minimizes external components and board space. Frequency deviation: - 0.8%( Typ) @20MHz. Low cycle-to-cycle jitter. 5.0V ± 5% operating voltage range. TTL or CMOS compatible outputs. Available in 8-pin TSSOP and SOIC package Product Description The ASM3P2107A is a versatile spread spectrum frequency modulator designed specifically for input clock frequencies from 12MHz to 22MHz. The ASM3P2107A can generate an EMI reduced clock from crystal, ceramic resonator, or system clock. The ASM3P2107A reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The ASM3P2107A allows significant system cost Applications The ASM3P2107A is targeted towards EMI management for high speed digital applications such as PC peripheral devices, consumer electronics and embedded controller systems. Block Diagram VDD Modulation XIN XOUT Crystal Oscillator Frequency Divider Feedback Divider Phase Detector Loop Filter PLL VCO Output Divider CLOCKOUT 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. November 2006 rev 0.4 Pin Configuration ASM3P2107A XIN / CLKIN 1 8 NC XOUT 2 GND 3 NC 4 ASM3P2107A 7 NC 6 VDD 5 CLOCKOUT Pin Description Pin# 1 2 3 4 5 6 7 8 Pin Name XIN/CLKIN XOUT GND NC CLOCKOUT VDD NC NC Type I O P O P - Description Crystal connection or external reference frequency input. This pin has dual functions. It can be connected to either an external crystal or an external reference clock. Crystal connection. If using an external reference, this pin must be left unconnected. Ground to entire chip. No connect. Spread spectrum low EMI output. Power supply for the entire chip (5V). No connect. No connect. Absolute Maximum Ratings Symbol VDD, VIN TSTG TA Ts TJ TDV Storage temperature Operating temperature Max. Soldering Temperature (10 sec) Junction Temperature Static Discharge Voltage (As per JEDEC STD22- A114-B) Parameter Voltage on any pin with respect to Ground Rating -0.5 to +7.0 -65 to +125 0 to 70 260 150 2 Unit V °C °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. Peak EMI Reducing Solution Notice: The information in this document is subject to change without notice. 2 of 7 November 2006 rev 0.4 DC Electrical Characteristics Symbol VIL VIH IIL IIH IXOL IXOH VOL VOH ICC IDD VDD tON ZOUT Input low voltage Input high voltage Input low current Input high current XOUT output low current (@ 0.4, VDD = 5V) XOUT output high current (@2.5V, VDD = 5V) Output low voltage (VDD = 5V, IOL = 20mA) Output high voltage (VDD = 5V, IOH = 20mA) Dynamic supply current normal mode (5V, 18MHz and 15pF loading) Static supply current standby mode Operating voltage Power up time (first locked clock cycle after power up) Clock out impedance ASM3P2107A Parameter Min GND – 0.3 2.0 2.5 4.75 - Typ 44 66 3 3 40 40 5.0 0.18 50 Max 0.8 VDD + 0.3 0.4 5.25 - Unit V V µA µA mA mA V V mA µA V mS Ω AC Electrical Characteristics Symbol fIN MODOUT fd tLH* tHL* tJC tD Input frequency Output frequency Frequency Deviation Input Frequency =12MHz Input Frequency =22MHz Output rise time (measured at 0.8V to 2.0V) Output fall time (measured at 2.0V to 0.8V) Jitter (cycle to cycle) Output duty cycle Parameter Min 12 12 45 Typ -2.13 -0.62 440 300 50 Max 22 22 360 55 Unit MHz MHz % pS pS pS % * VDD = +5V, Input Frequency = 18MHz, tLH and tHL are measured into a capacitive load of 15pF Peak EMI Reducing Solution Notice: The information in this document is subject to change without notice. 3 of 7 November 2006 rev 0.4 Package Information ASM3P2107A 8-Pin SOIC Package E H D A2 A θ e B A 1 C L D Dimensions Symbol Min A1 A A2 B C D E e H L θ Inches Max 0.010 0.069 0.059 0.020 0.010 0.004 0.053 0.049 0.012 0.007 Millimeters Min Max 0.10 1.35 1.25 0.31 0.18 4.90 BSC 3.91 BSC 1.27 BSC 6.00 BSC 0.41 0° 1.27 8° 0.25 1.75 1.50 0.51 0.25 0.193 BSC 0.154 BSC 0.050 BSC 0.236 BSC 0.016 0° 0.050 8° Peak EMI Reducing Solution Notice: The information in this document is subject to change without notice. 4 of 7 November 2006 rev 0.4 ASM3P2107A 8-Pin TSSOP H E D A2 A θ e B A1 L C Dimensions Symbol Min A A1 A2 B c D E e H L θ 0.020 0° 0.002 0.033 0.008 0.004 0.114 0.169 0.026 BSC 0.252 BSC 0.028 8° 0.50 0° Inches Max 0.043 0.006 0.037 0.012 0.008 0.122 0.177 0.05 0.85 0.19 0.09 2.90 4.30 Millimeters Min Max 1.10 0.15 0.95 0.30 0.20 3.10 4.50 0.65 BSC 6.40 BSC 0.70 8° Peak EMI Reducing Solution Notice: The information in this document is subject to change without notice. 5 of 7 November 2006 rev 0.4 Ordering Codes Part Number ASM3P2107AF-08-SR ASM3P2107AF-08-ST ASM3P2107AF-08-TR ASM3P2107AF-08-TT ASM3P2107AG-08-SR ASM3P2107AG-08-ST ASM3P2107AG-08-TR ASM3P2107AG-08-TT ASM3P2107A Marking 3P2107AF 3P2107AF 3P2107AF 3P2107AF 3P2107AG 3P2107AG 3P2107AG 3P2107AG Package 8-PIN SOIC, TAPE AND REEL, Pb Free 8-PIN SOIC, TUBE, Pb Free 8-PIN TSSOP, TAPE AND REEL, Pb Free 8-PIN TSSOP, TUBE, Pb Free 8-PIN SOIC, TAPE AND REEL, Green 8-PIN SOIC, TUBE, Green 8-PIN TSSOP, TAPE AND REEL, Green 8-PIN TSSOP, TUBE, Green Temperature Commercial Commercial Commercial Commercial Commercial Commercial Commercial Commercial Device Ordering Information ASM3P2107AG-08-ST R = Tape & Reel, T = Tube or Tray O = SOT S = SOIC T = TSSOP A = SSOP V = TVSOP B = BGA Q = QFN DEVICE PIN COUNT F = LEAD FREE AND RoHS COMPLIANT PART 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 U = MSOP E = TQFP L = LQFP U = MSOP P = PDIP D = QSOP X = SC-70 PulseCore Semiconductor Mixed Signal Product Licensed under US patent #5,488,627, #6,646,463 and #5,631,920. Peak EMI Reducing Solution Notice: The information in this document is subject to change without notice. 6 of 7 November 2006 rev 0.4 ASM3P2107A 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: ASM3P2107A Document Version: v0.4 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. Peak EMI Reducing Solution Notice: The information in this document is subject to change without notice. 7 of 7