P2384A February 2007 rev 0.2 Low Cost Frequency Multiplier Product Description Features • Generates 4X clocks of the Input Clock frequency • Input clock frequency range from 20 MHz to 78 MHz • Provides up to 312 MHz Output Clock frequency • External loop filter • Low Cycle-to-cycle jitter • 3.3 V Operating Voltage • TTL or CMOS compatible outputs • Ultra-low power CMOS design • Available in Commercial and Industrial temperature The P2384A is a versatile frequency multiplier that is designed specifically as cost effective alternative to the high precision frequency oscillator. The P2384A can generate a 4X output clock of the input frequency that allows system cost savings by using an inexpensive crystal or resonator to achieve high frequency multiplication. The P2384A provides up to 312 MHz output clock frequency through the use of the Phase-Lock-Loop (PLL) technique which delivers low jitter and high precision ranges • synthesized clocks. Available in 8-pin SOIC and TSSOP Packages Applications The P2384A is targeted towards the high frequency CAN OSC replacement market. Applications include xDSL, routers, networking, PC peripherals, and embedded systems. Block Diagram VDD PDB FS0 LF PLL Modulation XIN XOUT Crystal Oscillator Frequency divider Phase detector Output divider VCO Feedback divider CLKOUT 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. P2384A February 2007 rev 0.2 Pin Configuration XIN 1 8 VDD 7 FS0 PDB 3 6 CLKOUT LF 4 5 VSS XOUT 2 P2384A Pin Description Description Pin# Pin Name Type 1 XIN I 2 XOUT O 3 PDB I 4 LF I External loop filter for the PLL. (See Loop Filter Selection Table for value.) 5 VSS P Ground connection. Connect to system ground. 6 CLKOUT O Clock output. Crystal connection or external reference frequency input Crystal connection. If using an external reference, this pin must be left unconnected. Power-down control pin. Pull low to enable power-down mode. Connect directly to VDD in normal operation and if not used. 7 FS0 I Digital logic input used to select Input frequency range. (See Input Frequency Selection.) This pin has an internal pull-up resistor. 8 VDD P Connect to +3.3 V. Input Frequency Selection FS0 Input (MHz) Output Frequency Scaling (MHz) 0 20 to 38 80 to 152 1 39 to 78 156 to 312 Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 2 of 10 P2384A February 2007 rev 0.2 Loop Filter Selection Table ( VDD 3.3 V ) Pin 4 LF R1 C1 C2 Input (MHz) FS0 C1(pF) C2(pF) R1 (ohms) 20 21 - 22 23 - 24 25 - 26 27 - 28 29 - 30 31 - 32 33 - 34 35 - 36 37 - 38 39 - 42 43 - 46 47 - 50 51 - 54 55 - 58 59 - 62 63 - 66 67 - 70 71 - 74 75 - 78 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 330 390 510 560 620 750 820 910 1,000 1,200 330 390 510 560 620 750 820 910 1,000 1,200 Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 3 of 10 P2384A February 2007 rev 0.2 Output Clock Selection Example The P2384A can generate 4X Clock from the Input reference frequency. P2384A’s internal crystal oscillator circuits allow the use of an inexpensive crystal or resonator to replace expensive CAN oscillators that are used in networking, PC peripherals, xDSL, and consumer applications for high frequency generation. Its input frequency range is optimized for operations from 20 MHz to 78 MHz, and its output frequency can deliver up to 312 MHz. 25 MHz 1 XIN VDD 8 2 XOUT FS0 7 3 PDB C2 R1 C1 4 LF CLKOUT 6 0.1µF +3.3V Modulated 100 MHz VSS 5 P2384A Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 4 of 10 P2384A February 2007 rev 0.2 Absolute Maximum Ratings Symbol Parameter VDD, VIN Voltage on any pin with respect to Ground -0.5 to +4.6 TSTG Rating Unit 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 TDV Static Discharge Voltage (As per JEDEC STD 22- 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. 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 – 180 – µA – 0 – µA IIL IIH Input low current (Internal input pull-up resistor on FS0 and PDB) Input high current (Internal input pull-up resistor on FS0 and PDB) IXOL XOUT output low current – 10 – mA IXOH XOUT output high current – 10 – mA VOL Output low voltage (VDD = 3.3 V, IOL = 20 mA) – – 0.4 V VOH Output high voltage (VDD = 3.3 V, IOH = 20 mA) 2.5 – – V IDD Static supply current* – 3 – mA ICC Typical dynamic supply current (25 pF scope probe loading) – 28 – mA VDD Operating voltage 3.0 3.3 3.6 V tON Power-up time – 7 – mS Clock output impedance – 28 – Ω ZOUT * XIN and PBD are pulled low. Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 5 of 10 P2384A February 2007 rev 0.2 AC Electrical Characteristics Symbol Min Typ Max Unit Input frequency 20 – 78 MHz fOUT Output frequency 80 – 312 MHz tLH* Output rise time (measured at 0.8 V to 2.0 V) – 1 – nS Output fall time (measured at 2.0 V to 0.8 V) – 1 – nS tJC Jitter (cycle to cycle) – ±200 – pS tD Output duty cycle 45 50 55 % fIN tHL * Parameter * tLH and tHL are measured into a capacitive load of 15 pF Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 6 of 10 P2384A February 2007 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° Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 7 of 10 P2384A February 2007 rev 0.2 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° Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 8 of 10 P2384A February 2007 rev 0.2 Ordering Codes Part Number Marking Package Type P2384A-08ST P2384AG 8-pin SOIC, Tube, GREEN P2384A-08SR P2384AG 8-pin SOIC, Tape & reel, GREEN P2384A-08TT P2384AG 8-pin TSSOP, Tube, GREEN P2384A-08TR P2384AG 8-pin TSSOP, Tape & reel, GREEN I2384A-08ST I2384AG 8-pin SOIC, Tube, GREEN I2384A-08SR I2384AG 8-pin SOIC, Tape & reel, GREEN I2384A-08TT I2384AG 8-pin TSSOP, Tube, GREEN I2384A-08TR I2384AG 8-pin TSSOP, Tape & reel, GREEN P2384AF-08ST P2384AF 8-pin SOIC, Tube, Pb Free P2384AF-08SR P2384AF 8-pin SOIC, Tape & reel, Pb Free P2384AF-08TT P2384AF 8-pin TSSOP, Tube, Pb Free P2384AF-08TR P2384AF 8-pin TSSOP, Tape & reel, Pb Free I2384AF-08ST I2384AF 8-pin SOIC, Tube, Pb Free I2384AF-08SR I2384AF 8-pin SOIC, Tape & reel, Pb Free I2384AF-08TT I2384AF 8-pin TSSOP, Tube, Pb Free I2384AF-08TR I2384AF 8-pin TSSOP, Tape & reel, Pb Free Qty per reel Temperature Commercial 2500 Commercial Commercial 2500 Commercial Industrial 2500 Industrial Industrial 2500 Industrial Commercial 2500 Commercial Commercial 2500 Commercial Industrial 2500 Industrial Industrial 2500 Industrial Device Ordering Information P 2 3 8 4 A X - 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) Licensed under US patent Nos 5,488,627 and 5,631,920. Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 9 of 10 P2384A February 2007 rev 0.2 Copyright © PulseCore Semiconductor All Rights Reserved Part Number: P2384A Document Version: v0.2 PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 Tel: 408-879-9077 Fax: 408-879-9018 www.pulsecoresemi.com Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003 © Copyright 2007 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. Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 10 of 10