VX-700
Voltage Controlled Crystal Oscillator
Previous Vectron Model VC-710
The VX-700 is a Voltage Controlled Crystal Oscillator that operates at the fundamental frequency of the internal HFF crystal.
The HFF crystal is a high-Q quartz device that enables the circuit to achieve low phase jitter performance over a wide operating
temperature range. The VX-700 is housed in an industry standard hermetically sealed LCC package and available in tape and reel.
Fundamental VCXO with no subharmonics or spurs•
Low Jitter, sub 1pS performance•
Output Frequencies from 77.76 MHz to 200 MHz•
3.3 V Operation•
LVPECL Output •
Output Disable Feature•
Excellent ±20ppm temperature stability,•
0/70°C or -40/85°C operating temperature•
Small Industry Standard Package, 5.0x7.5x1.8mm•
Product is free of lead and compliant to EC RoHS Directive•
Ideal for PLL circuits for clock smoothing and frequency
translation
Features Applications
Block Diagram
Description
VX-700
SONET, SDH •
Synchronous Ethernet•
Fiber Channel•
LAN / WAN•
Test and Measurement•
VDD Output
VCGnd
Oscillator
Crystal
E/D
Complementary
Output
Page1
Rev: 3/27/2012
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Performance Speci cations
Table 1. Electrical Performance
Parameter Symbol Min Typical Maximum Units
Supply
Voltage1VDD 3.135 3.3 3.465 V
Current (No Load) IDD 50 90 mA
Frequency
Nominal Frequency2fN77.7600 200 MHz
Absolute Pull Range 3,6 APR ±50 ppm
Linearity3Lin 5 10 %
Gain Transfer Positive3 (See pg 5) KV+30 +150 ppm/V
Temperature Stability3fSTAB ±20 ppm
Outputs
Output Logic Levels3
Output Logic High
Output Logic Low
VOH
VOL
VDD-1.025
VDD-1.810
VDD-0.950
VDD-1.700
VDD-0.880
VDD-1.620
V
Current IOUT 20 mA
Rise Time4
Fall Time
tR
tF
1
1
ns
ns
Symmetry3SYM 45 50 55 %
Jitter (12 kHz - 20 MHz BW)155.52MHz5фJ 0.3 0.5 ps
Jitter (50 kHz - 80 MHz BW)155.52MHz5фJ 0.5 0.7 ps
Period Jitter, RMS (155.520 MHz)7фJ 3.0 ps
Period Jitter, Peak - Peak (155.520MHz)7фJ 20 ps
Spurious Suppression2-80 dBc
Control Voltage
Control Voltage Range for APR VC0.3 3.0 V
Control Voltage Input Impedance ZIN 10 MΩ
Control Voltage Modulation BW BW 10 20 kHz
Enable/Disable
Output Enabled, Option A 8
Output Disabled, Option A
VIH
VIL
0.7*VDD
0.3*VDD
V
V
Output Enabled, Option C 8
Output Disabled, Option C
VIL
VIH 0.7*VDD
0.2*VDD
Start-Up Time 10 ms
Operating Temperature TOP 0/70, -20/85 or -40/85 °C
Package Size 5.0 x 7.5 x 1.8 mm
Fig 1: Test Circuit Fig 2: LVPECL Waveform
The VX-700 power supply should be ltered, eg, 0.1 and 0.01uF to ground1]
See Standard Frequencies and Ordering Information tables for more speci c information2]
Parameters are tested with production test circuit below (Fig 1).3]
Measured from 20% to 80% of a full output swing (Fig 2).4]
Integrated across stated bandwidth.5]
Tested with Vc = 0.3V to 3.0V unless otherwise stated in part description6]
Broadband Period Jitter measured using Lecroy Wavemaster 8600A 6 GHz Oscilloscope, 25K samples taken. See application note.7]
Output is Enabled if E/D is left oating8]
SYM = 100 x tA / tR
tF
tR
tA
tR
Page2
Rev: 3/27/2012
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Outline Drawing & Pad Layout
VDUGLA
35.328
VI YWW
123
456
Table 2. Pin Out
Pin Symbol Function
1VCVCXO Control Voltage
2 OE Enable/Disable
**See Ordering Options**
3 GND Case and Electrical Ground
4 Output Output
5 COutput Complementary Output
6VDD Power Supply Voltage (3.3V ±10%)
Dimensions in inches
[mm]
XXX.XXXX
XXX.XXXX
XXX.XX
XXX.XX
Typical Phase Noise Typical Gain
VX-700 @ 128.00 MHz
-200
-150
-100
-50
0
50
100
150
200
0 0.5 1 1.5 2 2.5 3
Vc (volts)
Pull (ppm)
0
20
40
60
80
100
120
140
Gain (ppm/V)
Pull
Gain
VX700 YWW
CCC-CCCC
XXXMXXX
1 2 3
Bottom View
4 5 6
Page3
Rev: 3/27/2012
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Typical Characteristics - Phase Noise
Reliability
VI quali cation includes aging at various extreme temperatures, shock and vibration, temperature cycling, and IR re ow
simulation. The VX-700 family is capable of meeting the following quali cation tests:
Table 3. 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 2015
Moisture Sensitivity Level MSL 1
Contact Pads Gold over Nickel
Table 4. Absolute Maximum Ratings
Parameter Symbol Ratings Unit
Power Supply VDD 0 to 6 V
Output Current IOUT 25 mA
Voltage Control Range VC0 to VCC V
Storage Temperature TS -55 to 125 °C
Soldering Temp/Time TLS 260 / 40 °C / sec
Stresses in excess of the absolute maximum ratings can permanently damage the device. Functional operation is not
implied at these or any other conditions in excess of conditions represented in the operational sections of this datasheet.
Exposure to absolute maximum ratings for extended periods may adversely a ect device reliability. Permanent damage is
also possible if OD or Vc is applied before Vcc.
Although ESD protection circuitry has been designed into the VX-700 proper precautions should be taken when handling
and mounting. VI employs a human body model (HBM) and a charged device model (CDM) for ESD susceptibility testing
and design protection evaluation.
Table 5. ESD Ratings
Model Minimum Conditions
Human Body Model 500V MIL-STD-883, Method 3015
Charged Device Model 500V JESD22-C101
Suggested Output Load Con gurations
Page4
Rev: 3/27/2012
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Figure 3 Standard PECL Output Con guration
Figure 4 Single Resistor Termination Scheme
Resistor values are typically 120 to 240 ohms
Figure 5 Pull-Up Pull-Down Termination
The VX-700 incorporates a standard PECL output scheme, which are un-terminated emitters as shown in Figure 3. There are numerous application notes
on terminating and interfacing PECL logic and the two most common methods are a single resistor to ground, Figure 4, and a pull-up/pull-down scheme
as shown in Figure 5. An AC coupling capacitor is optional, depending on the application and the input logic requirements of the next stage.
One of the most important considerations is terminating the Output and Complementary Outputs equally. An unused output should not be left un-termi-
nated, and if it one of the two outputs is left open it will result in excessive jitter on both. PC board layout must take this and 50 ohm impedance matching
into account. Load matching and power supply noise are the main contributors to jitter related problems.
Tape & Reel (EIA-481-2-A)
Table 7. Tape and Reel Information
Tape Dimensions (mm) Reel Dimensions (mm)
Dimension W F Do Po P1 A B C D N W1 W2 # Per
Reel
Tolerance Typ Typ Typ Typ Typ Typ Min Typ Min Min Typ Max
VX-700 16 7.5 1.5 4 8 178 1.5 13 20.2 50 16.4 22.4 200
IR IR Re ow
Table 6. Re ow Pro le (IPC/JEDEC J-STD-020C)
Parameter Symbol Value
PreHeat Time
Ts-min
Ts-max
tS60 sec Min, 180 sec Max
150°C
200°C
Ramp Up RUP 3 °C/sec Max
Time Above 217 °C tL60 sec Min, 150 sec Max
Time To Peak Temperature T25C to peak 480 sec Max
Time at 260 °C tP20 sec Min, 40 sec Max
Ramp Down RDN 6 °C/sec Max
The device is quali ed 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 VX-700 device is
hermetically sealed so an aqueous wash is
not an issue.
Termination Plating:
Electroless Gold Plate over Nickel Plate
Page5
Rev: 3/27/2012
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Table 8. Standard Output Frequencies (MHz)
77.76000 80.00000 81.00000 88.47360 91.08000 92.16000 93.31200 96.00000
100.00000 101.99200 102.40000 106.25000 108.00000 110.00000 112.00000 112.64000
120.00000 122.80000 122.88000 124.41600 125.00000 128.00000 133.33000 134.21770
134.40000 135.00000 138.04860 139.23000 139.26400 139.50000 143.36000 144.00000
148.35160 148.50000 150.00000 153.60000 154.00000 155.52000 156.25000 157.50000
160.00000 161.13280 162.00000 166.62700 166.62860 167.33160 168.04067 175.00000
175.59375 180.00000 184.00000 184.32000 186.66600 187.50000 192.00000 192.45600
200.0000
Page6
Rev: 3/27/2012
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Ordering Information
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.
For Additional Information, Please Contact
USA:
Vectron International
267 Lowell Road
Hudson, NH 03051
Tel: 1.888.328.7661
Fax: 1.888.329.8328
Europe:
Vectron International
Landstrasse, D-74924
Neckarbischofsheim, Germany
Tel: +49 (0) 3328.4784.17
Fax: +49 (0) 3328.4784.30
Asia:
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
VX-700- E C E - K X A N - xxxMxxxxxx
Product
VCXO, 5x7 Package
Voltage Options
E: +3.3 Vdc ±5%,
Output
C: LVPECL
Stability
X: Standard
E: ±20ppm Temperature Stability
Frequency in MHz
*Note: not all combination of options are available.
Other speci cations may be available upon request.
Temp Range
T: 0/070°C
I: -20/+85°C
E: -40/+85°C
Other (Future Use)
N: Standard
Absolute Pull Range
G: ±30ppm
K: ±50ppm
Enable/Disable
A: Enable High
C: Enable Low
X: No Enable/Disable Feature
(No Internal Connection)
Example: VX-700-ECE-KXAN-155M520000
