P2082A P2084A October 2003 rev 0.4 Low Cost Frequency Multiplier Features Generates 2X and 4X clocks of the input clock frequency Input clock frequency range from 3 MHz to 78 MHz Provides up to: P2082A: 156 MHz output clock frequency multipliers that are designed specifically as cost effective alternatives to the high precision frequency oscillator. The P2082A/84A can generate a 2X and 4X output clock respectively of the input frequency which allows system cost savings by using an inexpensive crystal or resonator to achieve high frequency multiplication. P2084A: 312 MHz output clock frequency The P2082A/84A provides up to 156 MHz and 312 MHz External loop filter output clock frequencies respectively through the use of the Low cycle-to-cycle jitter Phase-Lock-Loop (PLL) technique which delivers low jitter 3.3 V operating voltage range and high precision synthesized clocks. 10 mA output drives TTL or CMOS compatible outputs Ultra-low power CMOS design Available in industrial temperature range The P2082A/84A is targeted towards the high frequency (-25C to +85C) CAN OSC replacement market. Applications include xDSL, Available in 8-pin SOIC and TSSOP routers, networking, PC peripherals, and embedded Applications systems. Product Description The P2082A and P2084A are versatile frequency Block Diagram Alliance Semiconductor 2575, Augustine Drive • Santa Clara, CA • Tel: 408.855.4900 • Fax: 408.855.4999 • www.alsc.com Notice: The information in this document is subject to change without notice. P2082A P2084A October 2003 rev 0.4 Pin Configuration Pin Description Pin# 1 Pin Name XIN/CLKIN Type I Description Connect to crystal or clock input. 2 XOUT I 3 FS1 I 4 LF I Digital logic input used to select input frequency range. (See Input Frequency Selection.) This pin has an internal pull-up resistor. 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. 7 FS0 I 8 VDD P Crystal output. Digital logic input used to select input frequency range. (See Input Frequency Selection.) This pin has an internal pull-up resistor. Connect to +3.3 V. Input Frequency Selection Output Frequency Scaling P2082A P2084A 6 to 18 12 to 36 FS1 FS0 Input (MHz) 0 0 3 to 9 0 1 10 to 19 20 to 38 40 to 76 1 0 20 to 38 40 to 76 80 to 152 1 1 39 to 78 78 to 156 156 to 312 Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 2 of 9 P2082A P2084A October 2003 rev 0.4 Loop Filter Selection Table VDD 3.3 V Input (MHz) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 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 FS1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 FS0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 C1(pF) 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 270 C2(pF) 330,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 100,000 Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. R1 (ohms) 220 270 390 510 620 820 1,000 330 390 510 560 620 750 820 910 1,000 1,200 330 390 510 560 620 750 820 910 1,000 1,200 330 390 510 560 620 750 820 910 1,000 1,200 3 of 9 P2082A P2084A October 2003 rev 0.4 Output Clock Selection Example The P2084A can generate 4X from the input reference frequency. P2084A’s internal crystal oscillator circuits allow the use of an inexpensive crystal of 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 operation from 3 MHz to 78 MHz, and its output frequency can deliver up to 312 MHz. Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 4 of 9 P2082A P2084A October 2003 rev 0.4 Absolute Maximum Ratings Symbol VDD, VIN Parameter Voltage on any pin with respect to GND Rating Unit -0.5 to + 7.0 V TSTG Storage temperature -65 to +125 °C TA Operating temperature 0 to 70 °C DC Electrical Characteristics Symbol Parameter VIL Input low voltage VIH Input high voltage IXOL XOUT output high current VOL Output low voltage (VDD = 3.3 V, IOL = 20 mA) VOH Output high voltage (VDD = 3.3 V, IOH = 20 mA) IDD Static supply current Typical dynamic supply current (25 pF scope probe loading) Operating voltage ICC VDD tON ZOUT Max Unit – 0.8 V – VDD + 0.3 V – 60 – µA – 0 – µA – 10 – mA – 10 mA – 2.5 – – 0.4 – V 2.0 IXOH IIH Typ GND - 0.3 Input low current (internal input pull-up resistor on FS0 and FS1) Input high current (internal input pull-up resistor on FS0 and FS1) XOUT output low current IIL Min – 3 – 5.2 at 3 MHz 3.0 Power-up time (CLOOP = 0.1 µF at 16 MHz, first locked cycle after power up) Clock output impedance (at 16 MHz) 3.3 V mA – 21.2 at 82 MHz 3.6 mA V – 7 – mS – 28 – Ω AC Electrical Characteristics Symbol fIN Parameter Min Typ Max Unit 3 – 78 MHz P2082A 6 – 156 MHz P2084A 12 312 MHz Input frequency fOUT tLH 1 Output rise time (measured at 0.8 V to 2.0 V) 1 ns tHL 1 Output fall time (measured at 2.0 V to 0.8 V) 1 ns tJC Jitter (cycle to cycle) tD Output duty cycle – 45 ±200 50 – 55 1 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. 5 of 9 ps % P2082A P2084A October 2003 rev 0.4 Package Information Mechanical Package Outline 8-Pin SOIC Symbol Dimensions in inches Dimensions in millimeters Min Nor Max Min Nor Max A 0.057 0.064 0.071 1.45 1.63 1.80 A1 0.004 0.007 0.010 0.10 0.18 0.25 A2 0.053 0.061 0.069 1.35 1.55 1.75 B 0.012 0.016 0.020 0.31 0.41 0.51 C 0.004 0.006 0.01 0.10 0.15 0.25 D 0.186 0.194 0.202 4.72 4.92 5.12 E 0.148 0.156 0.164 3.75 3.95 4.15 e 0.050 BSC 1.27 BSC H 0.224 0.236 0.248 5.70 6.00 6.30 L 0.012 0.020 0.028 0.30 0.50 0.70 a 0° 5° 8° 0° 5° 8° Note: Controlling dimensions are millimeters SOIC – 0.074 grams unit weight Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 6 of 9 P2082A P2084A October 2003 rev 0.4 Mechanical Package Outline 8-Pin TSSOP Dimensions in inches Symbol Min Nor A Max Dimensions in millimeters Min Nor 0.047 A1 0.002 A2 0.031 B Max 1.10 0.006 0.05 0.041 0.80 0.007 0.012 0.19 0.30 C 0.004 0.008 0.09 0.20 D 0.114 0.118 0.122 2.90 3.00 3.10 E 0.169 0.173 0.177 4.30 4.40 4.50 e 0.039 0.026 BSC 0.15 1.00 1.05 0.65 BSC H 0.244 0.252 0.260 6.20 6.40 6.60 L 0.018 0.024 0.030 0.45 0.60 0.75 a 0° 5° 8° 0° 5° 8° Note: Controlling dimensions are millimeters TSSOP – 0.034 grams unit weight Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 7 of 9 P2082A P2084A October 2003 rev 0.4 Ordering Codes Part Number Marking Package Type P208XA-08ST P208XA 8-pin SOIC, tube P208XA-08SR P208XA 8-pin SOIC, tape & reel P208XA-08TT P208XA 8-pin TSSOP, tube P208XA-08TR P208XA 8-pin TSSOP, tape & reel Qty per reel Temperature (°C) 0 to 70 2500 0 to 70 0 to 70 2500 0 to 70 Device Ordering Information X 2 0 8 X A X - 0 8 X X Package: ST – SOIC, TUBE SR - SOIC, T/R TT – TSSOP, TUBE TR - TSSOP, T/R Pin Count F = Pb FREE DEVICE NUMBER Flow: P = Commercial Temperature Range (0°C to 70°C) I = Industrial Temperature Range (-25°C to 85°C) A = Automotive Temperature Range (-40°C to 125°C) Licensed under US patent Nos 5,488,627 and 5,631,920. Advance datasheet. Specification subject to change without notice. Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 8 of 9 P2082A P2084A October 2003 rev 0.4 Alliance Semiconductor Corporation 2595, Augustine Drive, Santa Clara, CA 95054 Tel# 408-855-4900 Fax: 408-855-4999 www.alsc.com Copyright © Alliance Semiconductor All Rights Reserved Advance Information Part Number: P2082A/P2084A Document Version: v 0.4 © Copyright 2003 Alliance Semiconductor Corporation. All rights reserved. Our three-point logo, our name and Intelliwatt are trademarks or registered trademarks of Alliance. All other brand and product names may be the trademarks of their respective companies. Alliance reserves the right to make changes to this document and its products at any time without notice. Alliance assumes no responsibility for any errors that may appear in this document. The data contained herein represents Alliance's best data and/or estimates at the time of issuance. Alliance 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. Alliance 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 Alliance 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 Alliance's Terms and Conditions of Sale (which are available from Alliance). All sales of Alliance products are made exclusively according to Alliance's Terms and Conditions of Sale. The purchase of products from Alliance does not convey a license under any patent rights, copyrights; mask works rights, trademarks, or any other intellectual property rights of Alliance or third parties. Alliance 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 Alliance products in such life-supporting systems implies that the manufacturer assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use. Low Cost Frequency Multiplier Notice: The information in this document is subject to change without notice. 9 of 9