ASM3P4200A July 2006 rev 0.2 Multi-Output Custom Clock Generator Features Product Description • Generates seven clock outputs from an inexpensive The ASM3P4200A is a versatile multi output custom clock generator. The seven high frequency Clock outputs 20MHz crystal or external reference clock. • Output Frequencies are selectable through select bits are generated using an inexpensive 20MHz Crystal or • Generates an EMI optimized clock signal at the output. external reference clock. The accuracy of the 20MHz • ±1.5% (Typ) Input Clock should be within ±50ppm. The output clocks Centre Spread for Spread Spectrum consist of a low EMI spread spectrum clock and other Clock Outputs • Operates with a 3.3V ± 5% Supply Voltage non-spread clocks. Three Select bits choose the • Available in 28-pin TSSOP. combination of Output Clock Frequency. Refer to the Output Frequency Selection Table for the values. The device operates from a Supply Voltage of 3.3V± 5% with a tolerable ripple voltage of 50mV . The device is available in a 28 pin TSSOP JEDEC package. Block Diagram S0 S1 S2 VDD OE CLK2 CLK3 XIN / CLK XOUT Crystal Oscillator CLK4 PLL CLK6 CLK7 CLK1 CLK8 CLK9 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. ASM3P4200A July 2006 rev 0.2 Pin Assignment XIN / CLK 1 28 XOUT VCC 2 27 GND CLK1 3 26 OE S1 4 25 S2 S0 5 24 CLK9 VCC 6 23 VCC CLK2 7 22 GND VCC 8 21 CLK8 CLK3 9 20 GND VCC 10 19 CLK7 GND 11 18 GND CLK4 12 17 CLK6 ASM3P4200A 16pi TSSOP VCC 13 16 VCC CLK5 14 15 GND 28 pin TSSOP Output Frequency Selection Table Selection Bits S2 S1 S0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 CLK1 (MHz) CLK2 (MHz) CLK3 (MHz) CLK4 (MHz) CLK5 (MHz) CLK6 (MHz) CLK7 (MHz) CLK8* (MHz) CLK9* (MHz) 20 20 20 20 - 36.6 36.6 36.6 36.6 - 31.6 31.6 31.6 31.6 - 39.5 39.5 39.5 39.5 - OFF OFF OFF OFF - 84 84 36 84 - 63 63 63 63 - 50 60 50 75 - 20 20 20 20 - * CLK8 and CLK9 are Spread Spectrum Clocks Multi-Output Custom Clock Generator Notice: The information in this document is subject to change without notice. 2 of 7 ASM3P4200A July 2006 rev 0.2 Pin Description Pin # Pin Name Pin Type 1 XIN / CLK Input 2 3 VCC CLK1 Power Output 4 S1 Input 5 S0 Input 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 VCC CLK2 VCC CLK3 VCC GND CLK4 VCC CLK5 GND VCC CLK6 GND CLK7 GND Power Output Power Output Power Power Output Power Output Power Power Output Power Output Power 21 CLK8 Output 22 23 GND VCC Power Power 24 CLK9 Output 25 S2 Input 26 OE Input 27 GND Power 28 XOUT Output Absolute Maximum Ratings Symbol Pin Description Crystal connection or external reference frequency input. It can be connected to a 20MHz Fundamental mode crystal or to an external reference clock. Connect to +3.3V. Clock Output. Refer to the Output Frequency Selection Table for details. Select Bit for Desired Output Frequency at different output pins. Refer to the Output Frequency Selection Table for details. Has an internal pull down resistor Select Bit for Desired Output Frequency at different output pins. Refer to the Output Frequency Selection Table for details. Has an internal pull down resistor Connect to +3.3V. Clock Output. Refer to the Output Frequency Selection Table for details. Connect to +3.3V. Clock Output. Refer to the Output Frequency Selection Table for details. Connect to +3.3V. Connect to ground. Clock Output. Refer to the Output Frequency Selection Table for details. Connect to +3.3V. Clock Output. Refer to the Output Frequency Selection Table for details. Connect to ground. Connect to +3.3V. Clock Output. Refer to the Output Frequency Selection Table for details. Connect to ground. Clock Output. Refer to the Output Frequency Selection Table for details. Connect to ground. Spread Spectrum Clock Output. Refer to the Output Frequency Selection Table for details. Connect to ground. Connect to +3.3V. Spread Spectrum Clock Output. Refer to the Output Frequency Selection Table for details. Select Bit for Desired Output Frequency at different output pins. Refer to the Output Frequency Selection Table for details. Has an internal pull down resistor Output Enable bit. When this pin is made HIGH, the output clocks are enabled. Has an Internal pull-up resistor Connect to ground. Crystal connection. If an external reference clock is used, this pin must be left unconnected. Parameter VDD VIN TSTG TA Ts TJ Power Supply Voltage relative to Ground Input Voltage relative to Ground (Input Pins) Storage temperature Operating temperature Max. Soldering Temperature (10 sec) Junction Temperature TDV Static Discharge Voltage (As per JEDEC STD22- A114-B) Rating Unit -0.5 to +4.6 -0.5 to VDD+0.3 -65 to +150 -20 to +85 260 125 °C °C °C °C 2 KV V 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. Multi-Output Custom Clock Generator Notice: The information in this document is subject to change without notice. 3 of 7 ASM3P4200A July 2006 rev 0.2 DC Electrical Characteristics (Test condition: All parameters are measured at room temperature (+ 25°C) unless otherwise stated) Symbol Min Typ Max Unit VIL Input low voltage Parameter 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 IXOL XOUT output low current (@0.4V, VDD=3.3V) - 3 - mA IXOH XOUT output high current (@2.5V, VDD=3.3V) - 3 - mA VOL Output low voltage (VDD = 3.3 V, IOL = 12mA) - - 0.4 V VOH Output high voltage (VDD = 3.3 V, IOH = 12mA) 2.5 - - V IDD Static supply current* - TBD - mA ICC Dynamic supply current (3.3V, 20MHz and no load) - TBD - mA 3.135 3.3 3.465 V Power-up time (first locked cycle after power-up)** - - 5 mS Output impedance - 17 - Ω VDD Operating Voltage tON ZOUT * XIN / CLK and OE Pins are pulled low ** VDD and XIN / CLK inputs are stable, AC Electrical Characteristics Symbol XIN / CLK fd Parameter Input frequency Spread Percentage Output Frequency = 20MHz (Pin 24) Output Frequency = 50MHz Output Frequency = 60MHz Output Frequency = 75MHz Min Typ Max Unit - 20 - MHz - ±1.5 - % tLH* Output rise time (Measured from 0.8V to 2.0V) - - 1 nS tHL * Output fall time ( Measured from 2.0V to 0.8V) - - 1 nS tJC Jitter (Cycle to cycle) - ±250 - pS tp Jitter( Period) - ±150 - pS tD Output duty cycle 45 50 55 % *tLH and tHL are measured into a capacitive load of 30pF Multi-Output Custom Clock Generator Notice: The information in this document is subject to change without notice. 4 of 7 ASM3P4200A July 2006 rev 0.2 Package Information 28 lead Thin Shrunk Small Outline Package (4.40-MM Body) --- JEDEC Standard Dimensions Symbol Inches Min Max Millimeters Min Max A …. 0.043 … 1.2 A1 0.0020 0.0059 0.05 0.15 A2 0.031 0.041 0.80 1.05 D 0.3779 0.3858 9.60 9.80 L 0.020 0.030 0.50 0.75 E 0.252 BSC 6.40 BSC E1 0.169 0.177 4.30 4.50 R 0.004 …. 0.09 ….. R1 0.004 …. 0.09 ….. b 0.007 0.012 0.19 0.30 b1 0.007 0.010 0.19 0.25 c 0.004 0.008 0.09 0.20 c1 0.004 0.006 0.09 0.16 L1 0.039 REF 1.0 REF e 0.026 BSC 0.65 BSC θ1 θ2 θ3 0° 8° 0° 8° 12° REF 12° REF 12° REF 12° REF Multi-Output Custom Clock Generator Notice: The information in this document is subject to change without notice. 5 of 7 ASM3P4200A July 2006 rev 0.2 Ordering Information Part Number Marking Package Temperature ASM3P4200AG-28-TT 3P4200AG 28-Pin TSSOP, Tube, Green Commercial ASM3P4200AG-28-TR 3P4200AG 28-Pin TSSOP, Tape and Reel, Green Commercial Device Ordering Information A S M 3 P 4 2 0 0 A G - 2 8 - T T OR – TSOT23 -6,T/R TT – TSSOP, TUBE TR – TSSOP, T/R VT – TVSOP, TUBE VR – TVSOP, T/R ST – SOIC, TUBE AR – SSOP, T/R AT – SSOP, TUBE SR QR QT BT BR UR DR DT – SOIC, T/R – QFN, T/R – QFN, TRAY – BGA, TRAY – BGA, T/R – SOT-23, T/R – QSOP, T/R – QSOP, TUBE PIN COUNT GREEN PACKAGE PART NUMBER X = Automotive (-40C to +125C) I = Industrial P or n/c = Commercial (-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. Multi-Output Custom Clock Generator Notice: The information in this document is subject to change without notice. 6 of 7 ASM3P4200A July 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 Part Numbers: ASM3P4200A Document Version: 0.2 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. Multi-Output Custom Clock Generator Notice: The information in this document is subject to change without notice. 7 of 7