GO1555 GO1555 Voltage Controlled Oscillator Key Features Description * Generates 1.485GHz or 1.485/1.001GHz signal for Gennum ICs * Low power -- 20mW less than GO1525 * 50 output impedance The GO1555 is a self contained, miniature Voltage Controlled Oscillator (VCO). It produces a clean 1.485GHz reference clock signal with low spurious noise content. It is designed to drive 50 strip lines. * Operates from a single 2.5V supply * 8 pin tape on reel * Pb-free and RoHS Compliant The VCO requires a single 2.5V supply and draws a maximum of 8mA of current. It is packaged in a miniature 8-pin proprietary surface mount package and operates over the temperature range of -40C to +85C. The GO1555 can be used in place of the older GO1525 VCO. Compared to the GO1525, the GO1555 saves space, consumes less power and achieves better jitter performance. Applications Other Products: GS4915 ClockCleanerTM Deserializers: Note: Optimal performance of the GO1555 is achieved using slightly different loop bandwidth component values than those used with the GO1525. GS1559, GS1560A, GS1561, GS9060 Serializers: GS1531, GS1532, GS9062 This component and all homogeneous subcomponents are RoHS compliant. VCTR VCC STRIPLINE STRIPLINE OUT OSCILLATOR CIRCUIT GND Figure A: GO1555 Functional Block Diagram GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 www.semtech.com 1 of 12 Proprietary & Confidential Revision History (Document # 40746) Version ECR PCN Date Changes/Modification 4 010542 000138 December 2012 Final updates to the Marking Diagram. 3 158797 - November 2012 Internal Version Only: Updates to the Marking Diagram due to change in manufacturing location. 2 145427 - May 2007 Added comment about gold plated terminals in 5.1 Package Dimensions. 1 142967 - November 2006 Converting to Data Sheet. Added section 5.3 Tape and Reel Specification. Modified minimum output signal level to -10.5dBm in Electrical Characteristics. 0 141912 - September 2006 New Document. Contents Key Features ........................................................................................................................................................1 Applications.........................................................................................................................................................1 Description...........................................................................................................................................................1 Revision History (Document # 40746) ........................................................................................................2 1. Pin Out...............................................................................................................................................................3 1.1 Pin Assignment ..................................................................................................................................3 1.2 Pin Descriptions ................................................................................................................................3 2. Electrical Characteristics ............................................................................................................................4 3. Soldering Recommendations ....................................................................................................................5 3.1 Reflow Conditions ............................................................................................................................6 3.2 Soldering Flux ....................................................................................................................................6 3.3 Rework or Repair ..............................................................................................................................6 3.4 Endurance To Warp .........................................................................................................................6 4. Handling Recommendations .....................................................................................................................7 4.1 Cleaning ...............................................................................................................................................7 4.2 Storage ..................................................................................................................................................7 4.3 Transport .............................................................................................................................................7 4.4 ESD Warning ......................................................................................................................................7 5. Package & Ordering Information .............................................................................................................8 5.1 Package Dimensions ........................................................................................................................8 5.2 Packaging Data ..................................................................................................................................8 5.3 Tape and Reel Specification ..........................................................................................................9 5.4 PCB Footprint .................................................................................................................................. 11 5.5 Marking Diagram ........................................................................................................................... 11 5.6 Ordering Information ................................................................................................................... 11 GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 2 of 12 Proprietary & Confidential 1. Pin Out 1.1 Pin Assignment GND NC GND O/P 3 2 1 4 GO1555 TOP VIEW 8 5 6 7 VCTR GND VCC GND NOTE: Pin numbers are arbitrary. There are no pin markings on the device itself 1.2 Pin Descriptions Table 1-1: Pin Descriptions Pin Number Name Type Description 2, 4, 6, 8 GND Power Most negative power supply connections. 5 VCTR Input Control voltage for the VCO. 7 VCC Power Most positive power supply connection. 1 O/P Output VCO signal output. 3 NC - GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 No connection. 3 of 12 Proprietary & Confidential 2. Electrical Characteristics Table 2-1: Electrical Characteristics VCC = +2.5V 0.25V, Temperature = -40C to +85C, unless otherwise shown Parameter Symbol Conditions Min Typ Max Units Notes Supply Voltage VCC - 2.25 2.5 2.75 V - Supply Current IS - - - 8 mA - Control Voltage Range VCTR - 1.0 1.25 1.5 V - Control Voltage Sensitivity df/dV VCTR = 1.0V - 1.5V 35.5 - 48.5 MHz/V - Operating Frequency Range VCO VCTR = 1.0V - - 1483.5 MHz - VCTR = 1.5V 1485.0 - - MHz - -10.5 - -3 dBm - -1.5 - +1.5 MHz - Output Signal Level VOUT Pushing Figure - VCC = 2.5V 0.25V, ref: VCC = 2.5V Pulling Figure - VSWR = 2.0 for all phase, ref: 50W -3 - +3 MHz - TCOEF -40C to +85C, ref. = 25C -3 - 4 MHz - Temperature Stability Spurious Response - - - - -10 dBc - Output Impedance ZO - - 50 - - GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 4 of 12 Proprietary & Confidential 3. Soldering Recommendations The device is manufactured with Matte-Sn terminations and is compatible with both standard eutectic and Pb-free solder reflow profiles. The recommended standard eutectic reflow profile is shown in Figure 3-1. The maximum recommended Pb-free reflow profile is shown in Figure 3-2. 60-150 sec. Temperature 10-20 sec. 230C 220C 3C/sec max 183C 6C/sec max 150C 100C 25C Time 120 sec. max 6 min. max Figure 3-1: Standard Eutectic Solder Reflow Profile Temperature Max 80 sec. Max 10 sec. 260C 250C 3C/sec max 220C 6C/sec max 200C 150C 25C Time 60-120 sec. max 8 min. max Figure 3-2: Maximum Pb-free Solder Reflow Profile (Preferred) GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 5 of 12 Proprietary & Confidential 3.1 Reflow Conditions The device will meet the data sheet specifications after completing the reflow process according to the profile shown in Figure 3-1 or Figure 3-2. Recommended soldering conditions are as follows: Preheating 15010C, 60 to 120 sec. Soldering Peak 260C Over 220C within 80 sec. 3.2 Soldering Flux Do not use cleaning type flux. Washing the devices after using cleaning type flux may damage inner parts and affect performance. 3.3 Rework or Repair Rework or repair must only be done once. Do not reflow the device more than twice; once for initial soldering and once for remounting after rework. Do not vibrate the VCO during reflow soldering. 3.4 Endurance To Warp When the device is soldered on a printed circuit board (dimension: 100mm x 100mm; thickness: 1.6mm) and the PCB is warped as shown in Figure 3-3, the device will not be cracked or damaged. VCO PCB MAX 2mm Figure 3-3: PCB Warp GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 6 of 12 Proprietary & Confidential 4. Handling Recommendations 4.1 Cleaning There are two options for cleaning the devices. Option 1: 1. Clean but do not use solvent cleaners. 2. Thoroughly dry assemblies afterwards. Option 2: 1. Mount device after board is cleaned. 4.2 Storage Store the devices out of direct sunlight, at a stable temperature and humidity. Avoid extreme temperatures, high humidity and wide temperature fluctuations. Condensation on the devices may result in reduced quality and lowered solderability. Avoid dust, sea breezes and corrosive gases (Cl2, NH3, SO2, NOX, etc.). Use within 6 months after delivery. If the devices are stored for more than one year, solderability may be degraded. 4.3 Transport Package the devices for transportation to avoid mechanical vibration or shock. 4.4 ESD Warning Avoid poor ground connections and electrostatic discharge or induction in production. GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 7 of 12 Proprietary & Confidential 5. Package & Ordering Information 5.1 Package Dimensions 7 5 6 VCC 5 VCTR GND 6 7 0.45+/-0.15 G55 8 0.45+/-0.15 1 2 3 4 GND GND 4 3.20+/-0.20 8 1.10+/-0.10 2.30+/-0.10 MARUWA 0.45+/-0.15 1 OUT 2 GND 3NC 3 2 1 0.30+/-0.15 0.90+/-0.10 1.10+/-0.10 0.90+/-0.10 2.10+/-0.10 4.50+/-0.20 NOTE: The terminals are not marked on the case. Terminals : Gold plating* Solder plating 1.50 max. Resist : Unit (mm) Cover of resist spreading *Terminals identified as gold plated, may be wetted with solder. This is only cosmetic, and will not affect the solderability of the terminals. 5.2 Packaging Data Parameter Value Package Type 8L Proprietary Surface Mount Package Drawing Reference 40567 rev.0 Pb-free and RoHS Compliant Yes GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 8 of 12 Proprietary & Confidential 5.3 Tape and Reel Specification Trailer A Leader B 2.00+/-0.05 1.5 +0.1 - 4.0+/-0.1 12.0+/-0.2 5.50+/-0.05 Direction to pull VCO (DIMENSION) 8.0+/-0.1 3.6+/-0.1 1.55+/-0.05 4.9+/-0.1 VCO (DIMENSION) 0 1.75+/-0.10 Packaging units 3.6+/-0.1 Unit [mm] (DIMENSION) Figure 5-1: Tape Specification The dimensions of A (trailer of tape) include the one inserted in the reel core. Table 5-1: Tape Dimensions Trailer A Empty cavities >= 40mm Leader B Empty cavities, Cover tape leader >= 400mm Packaging Units 3000pcs Partial absence in carrier tape More than two successive empty cavities will not occur. Minimum order quantity 3000pcs / Reel GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 9 of 12 Proprietary & Confidential R80 10 PS 6 0.6 100 +/- 1 330 +/- 2 R55 22 13 +/- 0.2 R135 120 W1 W2 Reel Internal : W1 13.5 +/- 0.5 Reel External : W2 17.5 +/- 1.0 Unit : mm Figure 5-2: Reel Specification GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 10 of 12 Proprietary & Confidential 5.4 PCB Footprint Recommended Footprint for PCB Layout 8 B 1.90 ~ 4 1.05 1 0.80 2 0.55 3 0.8 0.85 5 6 7 0.55 0.75 1.05 1.70 A 1.9 ~ C 2.55 ~ Unit [mm] NOTE: Please make the GND pattern under the VCO and coat the painted part with solder resist. Please decide the dimensions of A, B and C as per the mounting accuracy of the chip mounter. 5.5 Marking Diagram 7 VCC 5 6 VCTR GND Date Code G55 1 8 1 : Last digit of the year 2 3 4 GND 2,3: Week No. GND MARUWA 1 OUT 2 GND 3NC 5.6 Ordering Information Part Number Package Pb-free Temperature Range GO1555-IXTE3 8-pin tape on reel Yes -40C to +85C GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 11 of 12 Proprietary & Confidential DOCUMENT IDENTIFICATION CAUTION FINAL DATA SHEET ELECTROSTATIC SENSITIVE DEVICES Information relating to this product and the application or design described herein is believed to be reliable, however such information is provided as a guide only and Semtech assumes no liability for any errors in this document, or for the application or design described herein. Semtech reserves the right to make changes to the product or this document at any time without notice. DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION (c) Semtech 2012 All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent or other industrial or intellectual property rights. Semtech assumes no responsibility or liability whatsoever for any failure or unexpected operation resulting from misuse, neglect improper installation, repair or improper handling or unusual physical or electrical stress including, but not limited to, exposure to parameters beyond the specified maximum ratings or operation outside the specified range. SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER'S OWN RISK. Should a customer purchase or use Semtech products for any such unauthorized application, the customer shall indemnify and hold Semtech and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs damages and attorney fees which could arise. Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. Contact Information Semtech Corporation Gennum Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805) 498-2111, Fax: (805) 498-3804 www.semtech.com GO1555 Voltage Controlled Oscillator Final Data Sheet Rev. 4 December 2012 12 of 12 12 Proprietary & Confidential