Vectron’s VCC6 Crystal Oscillator is a quartz stabilized, differential output oscillator, operating off either a 2.5 or 3.3 volt supply,
hermetically sealed 5x7 ceramic package.
Features
•
•
•
•
•
•
•
Ultra Low Jitter Performance, Fundamental or 3rd OT Crystal Design
Output Frequencies to 275.000MHz
0.3 ps typical RMS jitter, 12k-20MHz
Differential Output
Enable/Disable
-10/70°C, -40/85°C or -55/125°C Operation
Hermetically Sealed 5x7 Ceramic Package
•
•
•
•
•
•
•
•
•
•
Applications
Ethernet, GbE, Synchronous Ethernet
Fiber Channel
Enterprise Servers
Telecom
Clock source for A/D’s, D/A’s
Driving FPGA’s
Test and Measurement
PON
Medical
COTS
• Product is compliant to RoHS directive
and fully compatible with lead free assembly
Block Diagram
Complementary
Output
Output
V
DD
Crystal
Oscillator
E/D or NC
E/D or NC
Gnd
Vectron International • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page1
Performance Specifications
Table 1. Electrical Performance, LVPECL Option
Parameter
Voltage
1
Current (No Load)
Nominal Frequency
2
Stability
2,3
(Ordering Option)
Outputs
Output Logic Levels
4
, -10/70°C
Output Logic High
Output Logic Low
Output Logic Levels
4
, -40/85°C
Output Logic High
Output Logic Low
Output Rise and Fall Time
4
Load
Duty Cycle
5
Jitter (12 kHz - 20 MHz BW)155.52MHz
6
Period Jitter
7
RMS
P/P
Random Jitter
Deterministic Jitter
Output Enabled
8
Output Disabled
Disable Time
Enable/Disable Leakage Current
Enable Pull-Up Resistor
Output Enabled
Output Disabled
Start-Up Time
Operating Temp. (Ordering Option)
t
SU
T
OP
-10/70 or -40/85
33
1
10
фJ
фJ
45
V
OH
V
OL
V
OH
V
OL
t
R
/t
F
50 ohms into V
DD
-1.3V
50
0.3
2.3
20
2.4
0
Enable/Disable
V
IH
V
IL
t
D
0.7*V
DD
0.3*V
DD
200
±200
V
V
ns
uA
KOhm
MOhm
ms
°C
55
0.7
%
ps
ps
ps
ps
ps
V
DD
-1.025
V
DD
-1.810
V
DD
-1.085
V
DD
-1.830
V
DD
-0.880
V
DD
-1.620
V
DD
-0.880
V
DD
-1.555
600
V
V
V
V
ps
Symbol
V
DD
I
DD
Min
Supply
3.135
2.375
Frequency
Typical
3.3
2.5
50
Maximum
3.465
2.625
98
275.000
Units
V
V
mA
MHz
ppm
f
N
25
±20, ±25, ±50, ±100
1. The VCC6 power supply pin should be filtered, eg, a 0.1 and 0.01uf capacitor.
2. See Standard Frequencies and Ordering Information for more information.
3. Includes calibration tolerance, operating temperature, supply voltage variations, aging and IR reflow.
4. Figure 1 defines the test circuit and Figure 2 defines these parameters.
5. Duty Cycle is defined as the On/Time Period.
6. Measured using an Agilent E5052, 155.520MHz. Please see “Typical Phase Noise and Jitter Report for the VCC6 series”.
7. Measured using a Wavecrest SIA3300C, 90K samples.
8. Outputs will be Enabled if Enable/Disable is left open.
V
DD
-1.3V
1
2
3
-1.3V
6
5
4
50
50
t
R
V
OH
50%
V
OL
On Time
Period
t
F
NC
NC
Figure 1.
Figure 2.
Vectron International • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page2
Performance Specifications
Table 2. Electrical Performance, LVDS Option
Parameter
Voltage
1
Current (No Load)
Nominal Frequency
2
Stability
2,3,
(Ordering Option)
Outputs
Output Logic Levels
4
Output Logic High
Output Logic Low
Differential Output Amplitude
Differential Output Error
Offset Voltage
Offset Voltage Error
Output Leakage Current
Output Rise and Fall Time
4
Load
Duty Cycle
5
Jitter (12 kHz - 20 MHz BW)155.52MHz
6
Period Jitter
7
RMS
P/P
Random Jitter
Deterministic Jitter
Output Enabled
8
Output Disabled
Disable Time
Enable/Disable Leakage Current
Enable Pull-Up Resistor
Output Enabled
Output Disabled
Start-Up Time
Operating Temp. (Ordering Option)
t
SU
T
OP
-10/70 or -40/85
33
1
10
фJ
фJ
45
t
R
/t
F
100 ohms differential
50
0.3
2.5
22
2.6
0
Enable/Disable
V
IH
V
IL
t
D
0.7*V
DD
0.3*V
DD
200
±200
V
V
ns
uA
KOhm
MOhm
ms
°C
55
0.7
%
ps
ps
ps
ps
ps
1.125
1.25
V
OH
V
OL
1.43
1.10
330
1.6
454
50
1.375
50
10
600
V
V
mV
mV
V
mV
uA
ps
Symbol
V
DD
I
DD
Min
Supply
3.135
2.375
Frequency
Typical
3.3
2.5
Maximum
3.465
2.625
60
Units
V
V
mA
MHz
ppm
f
N
80
±20, ±25, ±50, ±100
275.000
0.9
247
1. The VCC6 power supply pin should be filtered, eg, a 0.1 and 0.01uf capacitor.
2. See Standard Frequencies and Ordering Information for more information.
3. Includes calibration tolerance, operating temperature, supply voltage variations, aging and IR reflow.
4. Figure 2 defines these parameters and Figure 3 defines the test circuit.
5. Duty Cycle is defined as the On/Time Period.
6. Measured using an Agilent E5052, 155.520MHz. Please see “Typical Phase Noise and Jitter Report for the VCC6 series”.
7. Measured using a Wavecrest SIA3300C, 90K samples.
8. Outputs will be Enabled if Enable/Disable is left open.
50
50
0.01 uF
DC
Out
Out
6
1
5
2
4
3
Figure 3.
Vectron International • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page3
Package and Pinout
Table 3. Pinout
Pin #
1
2
3
4
5
6
6
Symbol
E/D or NC
E/D or NC
GND
f
O
Cf
O
V
DD
7.0±0.15
5
VCC6-XXX
4
Function
Enable Disable or No Connection
Enable Disable or No Connection
Electrical and Lid Ground
Output Frequency
Complementary Output Frequency
Supply Voltage
The Enable/Disable function is set at the factory on either pin
1 or pin 2 and is an ordering option. Outputs will be Enabled if
the Enable/Disable is left open.
1.96
XXXMXX
YYWW C
1
2
1.397
3
1.6 max
1.27
1.78
3.66
5.0±0.15
1
6
2
Bottom View
5
3
3.57
4
Dimensions are in mm
2.54
5.08
2.54
5.08
Figure 4. Package Outline Drawing
Figure 5. Pad Layout
LVPECL Application Diagrams
140Ω
140Ω
Figure 6. Standard PECL Output Configuration Figure 7. Single Resistor Termination Scheme
Resistor values are typically 140 ohms for 3.3V
operation and 84 ohms for 2.5V operation.
Figure 8. Pull-Up Pull Down Termination
Resistor values are typically for 3.3V operation
For 2.5V operation, the resistor to ground is 62
ohms and the resistor to supply is 240 ohms
The VCC6 incorporates a standard PECL output scheme, which are un-terminated emitters as shown in Figure 6. There are numerous application notes on
terminating and interfacing PECL logic and the two most common methods are a single resistor to ground, Figure 7, and a pull-up/pull-down scheme as
shown in Figure 8. An AC coupling capacitor is optional, depending on the application and the input logic requirements of the next stage.
Vectron International • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page4
LVDS Application Diagrams
V
CC
LVDS
Driver
OUT+
OUT-
100
LVDS
Receiver
LVDS
Driver
100
Receiver
Figure 9. Standard LVDS
Output Configuration
Figure 10. LVDS to LVDS Connection, Internal 100ohm
Figure 11. LVDS to LVDS Connection
External 100ohm and AC blocking caps
Some LVDS structures have an internal 100 ohm resistor
Some input structures may not have an internal 100 ohm
on the input and do not need additional components.
resistor on the input and will need an external 100ohm
resistor for impedance matching. Also, the input may have
an internal DC bias which may not be compatible with
LVDS levels, AC blocking capacitors can be used.
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 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.
Environmental and IR Compliance
Table 4. Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Temperature Cycle
Solderability
Fine and Gross Leak
Resistance to Solvents
Moisture Sensitivity Level
Contact Pads
Condition
MIL-STD-883 Method 2002
MIL-STD-883 Method 2007
MIL-STD-883 Method 1010
MIL-STD-883 Method 2003
MIL-STD-883 Method 1014
MIL-STD-883 Method 2015
MSL1
Gold over Nickel
IR Compliance
Suggested IR Profile
Devices are built using lead free epoxy and can be subjected to
standard lead free IR reflow conditions shown in Table 5. Contact
pads are gold over nickel and lower maximum temperatures can also
be used, such as 220C.
Table 5. Reflow Profile
Parameter
PreHeat Time
Ramp Up
Time above 217°C
Time to Peak Temperature
Time at 260°C
Time at 240°C
Ramp down
S
260
R
UP
t
L
t
P
R
DN
Symbol
ts
R
UP
tL
tAMB-P
tP
tP2
R
DN
Value
200 sec Max
3°C/sec Max
150 sec Max
30 sec Max
60 sec Max
6°C/sec Max
Temperature (DegC)
217
200
150
t
S
t
AMB-P
25
480 sec Max
Reliability
Time (sec)
Vectron International • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
[i=s]This post was last edited by Tianming on 2014-7-22 09:52[/i] [color=#454b57][backcolor=rgb(240, 240, 240)][font=Arial, Helvetica, sans-serif][size=12px]This basic tutorial introduces the characte...
I'm a newbie developer and I'm using CCS to compile CC2650STK programs. I've encountered a few problems and I've uploaded screenshots. Please help me! If you have similar interests, we can work togeth...
Good websites for beginners to learn electronics: (Electronic Storm) MCS-51 single chip microcomputer technology learning: [url=http://www.laogu.com/][color=#000063]www.laogu.com[/color][/url] [url=ht...
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]
When the so-called "copycat phones" that flood the domestic mobile phone market move towards large screens, stereo amplifiers, touch controls, and even GPS navigation and mobile TV, the homogeneity...[Details]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[Details]
1 Overview
In the field of traditional lighting, the concepts and definitions of lamps and lamps are clear. Lamps and lamps have their own applicable product standards, supporting technical st...[Details]
Multimedia processors are often the most power-hungry devices in portable electronic devices. Common ways to reduce CPU power requirements are to reduce clock frequency or operating voltage, but th...[Details]
1 Introduction
Power supply ripple will interfere with the normal operation of electronic equipment, causing malfunctions such as computer crashes, data processing errors and control system fa...[Details]
TMC428 is a stepper motor motion controller from TRINAMIC. It can reduce the workload of motor control software design and development costs. The 3-axis stepper motor drive control system based on ...[Details]
0 Introduction
The load with impact (rapid change) power in the power system will cause the voltage fluctuation and flicker of the power grid, causing many electrical equipment to fail to wo...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
