VS-751 Dual Frequency VCSO VS-751 Description The VS-751 is a SAW based voltage controlled oscillator that operates at the fundamental frequencies of the internal SAW filters. These SAW filters are high-Q quartz devices that enable the circuit to achieve low phase jitter performance over a wide operating temperature range. The dual oscillator is housed in a hermetically sealed leadless surface mount package offered on tape and reel. It has a frequency select function that enables either “Frequency 1” or “Frequency 2.” Features • 5x7.5x2.5 mm Package • Output frequencies from 500MHz to 850MHz • 3.3V operation • Low Jitter <0.25 ps-rms across 50kHz to 80MHz Applications PLL circuits for clock smoothing and frequency translation Description Standard • 1-2-4 Gigabit Fibre Channel INCITS 352-2002 • 10 Gigabit Fibre Channel INCITS 364-2003 • 10GbE LAN / WAN IEEE 802.3ae • OC-192 ITU-T G.709 • SONET / SDH GR-253-CORE Issue4 • Synchronous Ethernet ITU-T.8262 • LV-PECL configuration with fast transition times • Complementary outputs • Frequency select • Patent pending technology • Product is free of lead and compliant to EC RoHS directive Block Diagram Vcc COutput Output SAW 1 SAW 2 Vc Page1 of 8 FS Gnd Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com Rev: 11/12/2009 Performance Specifications Electrical Performance Parameter Symbol Min Voltage VCC 2.97 Current (No Load) ICC Typical Maximum Units Notes 3.3 3.63 V 2,3 55 70 mA 3 MHz 1,2,3 Supply Frequency Nominal Frequency fN Absolute Pull Range APR ppm 1,2,3,8 Linearity Lin ±5 % 2,4,8 Gain Transfer (See pg 5) KV +405 ppm/V 2,8 fSTAB ±100 ppm 1,6 4 μsec 6 Temperature Stability 500 - 850 ±50 Transition Time Outputs Mid Level Swing Current VCC-1.4 VCC-1.3 VCC-1.2 V 1,3 550 650 950 mV-pp 2,3 20 mA 6 IOUT Rise Time tR 250 400 ps 5,6 Fall Time tF 250 400 ps 5,6 45 50 55 50 60 Symmetry SYM Spurious Suppression Jitter (See pg 5) 0.130 фJ 0.250 % 2,3 dBc 6 ps-rms 6,7 kΩ 6 Control Voltage Input Impedance ZC Modulation Bandwidth BW Operating Temperature TOP Package Size 1] 2] 3] 4] 5] 6] 7] 8] 100 500 -40 85 5.0 x 7.5 x 2.5 kHz 6 °C 1,3 mm See standard frequencies and ordering information (Pg 7). Parameters are tested with production test circuit below (Fig 1). Parameters are tested at ambient temperature with test limits guardbanded for specified operating temperature. Measured as the maximum deviation from the best straight-line fit, per MIL-0-55310. Measured from 20% to 80% of a full output swing (Fig 2). Not tested in production, guaranteed by design, verified at qualification. Integrated across 50kHz to 80MHz, per GR-253-CORE Issue3. Tested with Vc = 0.3V to 3.0V. Fig 1: Test Circuit Fig 2: 10K LV-PECL Waveform Test Circuit Notes: 1) To permit 50Ω easurement of outputs, all DC inputs are biased down 1.3V. 2) All voltage sources contain bypass capacitors to minimize supply noise. 3) 50Ω terminations are within test equipment. Page2 of 8 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com Rev: 11/12/2009 Absolute Maximum Ratings Parameter Symbol Ratings Unit Power Supply VCC 0 to 6 V Input Current IIN 100 mA Output Current IOUT 25 mA Voltage VC 0 to VCC V Storage Temperature TSTR -55 to 125 °C Soldering Temperature / Duration TPEAK / tP 260 / 40 °C / sec Stresses in excess of the absolute maximum ratings can permanently damage the device. Also, exposure to these absolute maximum ratings for extended periods may adversly affect device reliability. Functional operation is not implied at these or any other conditions in excess of those represented in the operational sections of this datasheet. Permanent damage is also possible if any device input (Vc or FS) draws greater than 100mA. Suggested Output Load Configuration LV-PECL to LV-PECL: For short transmission lengths, the power consumption could be reduced by removing the 100Ω resistor and doubling the value of the pull down resistors. Functional Test: Allows standard power supply configuration. Since AC coupled, the LV-PECL levels cannot be measured. Page3 of 8 LV-PECL to LVDS: Restricted for short transmission lengths. Configuration may require modification depending on LVDS receiver. Production Test: Allows direct DC coupling into 50Ω measurement equipment. Must bias the power supplys as shown. Similiar to Figure 1. Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com Rev: 11/12/2009 Typical Characteristics Page4 of 8 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com Rev: 11/12/2009 Reliability VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and IR reflow simulation. The VS-751 family is capable of meeting the following qualification test at right: Environmental Compliance Parameter Conditions Mechanical Shock MIL-STD-883, Method 2002 Mechanical Vibration MIL-STD-883, Method 2007 Solderability MIL-STD-883, Method 2003 Gross and Fine Leak MIL-STD-883, Method 1014 Resistance to Solvents MIL-STD-883, Method 2016 Handling Precautions Although ESD protection circuitry has been designed into the VS-751 proper precautions should be taken when handling and ounting. VI employs a human body model (HBM) and a charged-device model (CDM) for ESD susceptibility testing and design protection evaluation. ESD Ratings Model Minimum Conditions Human Body Model 1500V MIL-STD-883, Method 3015 Charged Device Model 1000V JEDEC, JESD22-C101 Reflow Profile (IPC/JEDEC J-STD-020C) Parameter Symbol Value PreHeat Time tS 60 sec Min, 180 sec Max Ramp Up RUP 3 °C/sec Max Time Above 217 °C tL 60 sec Min, 150 sec Max Time To Peak Temperature TAMB-P 480 sec Max Time at 260 °C tP 20 sec Min, 40 sec Max Ramp Down RDN 6 °C/sec Max The device has been qualified to meet the JEDEC standard for Pb-Free assembly. The temperatures and time intervals listed are based on the Pb-Free small body requirements. The temperatures refere to the topside of the package, measured on the package body surface. The VS-751 device is hermetically sealed so an aqueous wash is not an issue. Terminal Plating: Electroless Gold Plate over Nickel Plate Page5 of 8 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com Rev: 11/12/2009 Outline Drawing Suggested Pad Layout Dimensions in inches (mm) Marking Key Pin Out Pin Symbol Function Position 6 Position 7 1 VC VCSO Control Voltage L = LFF G = GNN 2 FS Frequency Select (see control logic) 3 Gnd Case and Electrical Ground 4 Output VCSO Output 5 COutput VCSO Coplementary Output 6 VCC Power Supply Voltage (3.3V±10%) H = HNN Control Logic (LV-CMOS) FS Operation 0 F1 1 F2 Tape & Reel (EIA-481-2-A) Tape Dimensions (mm) Reel Dimensions (mm) Dimension W F Do Po P1 A B C D N W1 W2 Tolerance Typ Typ Typ Typ Typ Typ Min Typ Min Min Typ Max #Per Reel VS-751 16 7.5 1.5 4 8 178 1.5 13 20.2 50 16.4 22.4 200 Page6 of 8 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com Rev: 11/12/2009 Standard Frequencies (MHz) 1. 2. 531.250000 P8 569.196400 P9 614.400000 RG 622.080000 P2 624.693800 PD 625.000000 P3 627.329600 P7 629.987800 PA 644.531250 P4 657.421875 PB 666.514286 P5 669.326582 R3 669.642900 R1 672.156250 TX 672.162712 R5 687.700000 TV 690.569196 R4 693.482991 R6 693.750000 R8 696.421478 V1 696.421875 TY 704.380600 TG 707.352700 TC 707.500000 V2 712.520000 TW 737.280000 TL 777.600000 T4 805.664100 TA Other frequencies available upon request, please contact VI for details. Frequency 1 must be lower than frequency 2. Not all combinations are available. Ordering Information VS - 751 - L F F - H N N - P2 - P2 Product Family VS: VCSO Frequency 2 See Above Package 751: 5 x 7.5 x 2.5 mm Frequency 1 See Above Input L: 3.3 V Other (Future Use) N: N/A Output F: LV-PECL Other (Future Use) N: N/A Operating Temperature F: -40 to 85 °C Absolute Pull Range G: ± 50 ppm H: ± 100 ppm Example: VS-751-LFF-HNN-P2-P4 For Additional Information, Please Contact USA: Europe: Asia: Vectron International 267 Lowell Road Hudson, NH 03051 Tel: 1.888.328.7661 Fax: 1.888.329.8328 Vectron International Landstrasse, D-74924 Neckarbischofsheim, Germany Tel: +49 (0) 3328.4784.17 Fax: +49 (0) 3328.4784.30 Vectron International 1F-2F, No 8 Workshop, No 308 Fenju Road WaiGaoQiao Free Trade Zone Pudong, Shanghai, China 200131 Tel: 86.21.5048.0777 Fax: 86.21.5048.1881 Disclaimer Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. Page7 of 8 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com Rev: 11/12/2009 Revision History Revision History Date Page8 of 8 Approved Description 09Jan2006 JM Original Issue 07Dec2006 JM Added TG frequency code 12Nov2009 BW Added the following frequency codes: RG, TL, TV, TX, TW, TY, V1, V2 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com Rev: 11/12/2009