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
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, -40/85 or -55/125
33
1
10
фJ
фJ
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
ps
ps
ps
ps
45
V
OH
V
OL
V
OH
V
OL
t
R
/t
F
50 ohms into V
DD
-1.3V
50
0.3
55
0.7
%
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
t
R
V
OH
50%
t
F
1
NC
2
NC
3
6
5
4
50
50
V
OL
On Time
-1.3V
Period
Figure 1.
Page2
Figure 2.
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, -40/85 or -55/125
33
1
10
фJ
фJ
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
ps
ps
ps
ps
45
t
R
/t
F
100 ohms differential
50
0.3
55
0.7
%
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
Out
Out
0.01 uF
DC
6
1
5
2
4
3
Figure 3.
Page3
Package and Pinout
Table 3. Pinout
Pin #
1
2
3
4
5
6
Symbol
E/D or NC
E/D or NC
GND
f
O
Cf
O
V
DD
Function
Enable Disable or No Connection
Enable Disable or No Connection
Electrical and Lid Ground
Output Frequency
Complementary Output Frequency
Supply Voltage
Table 4. Enable Disable Function
(optional on pin 1 or pin2)
E/D Pin
High
Open
Low
Output
Clock Output
Clock Output
High Impedance
6
7.0±0.15
5
VCC6-XXX
XXXMXX
YYWW C
4
1.96
5.0±0.15
1
2
1.397
3
1.6 max
1.27
Marking
XXXMXXX = frequency
YY= Year
WW = Week
C = Country Code
Dimensions are in mm
2.54
1.78
3.66
1
6
2
Bottom View
5
3
3.57
4
2.54
5.08
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.
Page4
LVDS Application Diagrams
V
CC
LVDS
Driver
100
LVDS
Receiver
LVDS
Driver
100
Receiver
OUT+
OUT-
Figure 9. Standard LVDS
Output Configuration
Figure 10. LVDS to LVDS Connection, Internal 100ohm
Figure 11. LVDS to LVDS Connection
Some LVDS structures have an internal 100 ohm resistor
External 100ohm and AC blocking caps
on the input and do not need additional components.
Some input structures may not have an internal 100 ohm
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 5. Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Temperature Cycle
Solderability
Fine and Gross Leak
Resistance to Solvents
Moisture Sensitivity Level
Contact Pads
ThetaJC (bottom of package)
Weight
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 (0.3 um min - 1.0 um max) over Nickel
13 C/W
170 mg
IR Compliance
S
Suggested IR Profile
Devices are built using lead free epoxy and can be subjected to
standard lead free IR refl
ow conditions shown in Table 5. Contact
pads are gold over nickel and lower maximum temperatures can also
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:01[/i] The controller is LPC2132, which reads data from the SD card, supports Chinese character file name display, file browsing functi...
[i=s] This post was last edited by Xin Xin on 2017-11-18 13:56 [/i] [size=4][b][color=#0000ff] [/color][color=#ff0000]Completed part: [/color][/b][/size] [size=4][color=#0000ff][b] 01. Register mappin...
Reflow soldering, a common soldering method in modern electronics manufacturing, primarily melts solder paste and pads to form solder joints. With technological advancements, soldering equipment ha...[Details]
A parallel inverter consists of two thyristors (T1 and T2), a capacitor, a center-tapped transformer, and an inductor. The thyristors provide a current path, while the inductor L maintains a consta...[Details]
Long ago, the lifespan of cars in my country was 15 years. Once a car reached 15 years old, it was forced to be scrapped. However, the policy was later changed. As long as the car does not exceed 6...[Details]
In recent years, many people have switched to new energy vehicles, and this type of vehicle has indeed been highly sought after and is considered the future direction of automobile development, and...[Details]
On August 21, WeRide officially launched WePilot AiDrive, a one-stage end-to-end assisted driving solution developed in cooperation with Bosch. This comes only half a year after the two parties' "t...[Details]
Overview
As handheld voice communication devices become more and more popular, they are increasingly used in noisy environments, such as airports, busy roads, crowded bars, etc. In such noisy ...[Details]
Electric vehicles are now widespread, but they've brought with them a host of problems, the most prominent of which is charging. Small electric vehicles (EVs) are a new form of transportation in a ...[Details]
In the field of intelligent driving, regulations are becoming increasingly stringent, and the technical threshold continues to rise. Especially after the traffic accident in March 2025, the Ministr...[Details]
Intel®
Xeon®
6
-
core processors now support the new Amazon EC2 R8i and R8i-flex instances on Amazon Web Services (AWS).
These new instances offer superior performance and fast...[Details]
With the increasing popularity of automated equipment, linear modules, a common auxiliary device for automated equipment, have also seen a bright future. In particular, in recent years, many small ...[Details]
In daily life, when we purchase a transformer, we are faced with the installation and wiring procedures. Generally speaking, large transformers such as power transformers are equipped with speciali...[Details]
In camera and display systems, the demand for high-performance and low-power data interfaces is driving continuous technological evolution. The evolution of MIPI D-PHY and MIPI C-PHY clearly ...[Details]
The drive shaft is a high-speed, low-support rotating body, so its dynamic balance is crucial. Generally, drive shafts undergo dynamic balancing tests and adjustments on a balancing machine before ...[Details]
Which is better, copper braided wire flexible connector or copper stranded wire flexible connector? When choosing copper wire flexible connector, people always struggle with whether to use copper b...[Details]
The assisted driving industry in 2025 stands at the dual crossroads of "large-scale implementation" and "safety upgrades." Cities like Beijing and Wuhan have already issued regulations de...[Details]
Mobile and portable
京公网安备 11010802033920号
EEWORLD
