VC-801
CMOS Crystal Oscillator
Previous Vectron Model VCC4
VC-801
Description
Vectron’s VC-801 Crystal Oscillator (XO) is a quartz stabilized square wave generator with a CMOS output. The VC-801 uses fundamental or 3rd
overtone crystals resulting in very low jitter performance, and a monolithic IC which improves reliability and
reduces cost.
Features
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CMOS output XO
Output Frequencies from 1.544 MHz to 125.000 MHz
5.0, 3.3, 2.5 or 1.8 V Operation
Fundamental Crystal Design with low Jitter Performance
Output Disable Feature
Excellent 20ppm temperature stability,
-10/70°C or -40/85°C operating temperature
Small Industry Standard Package, 3.2.0x5.0x1.3mm
Product is compliant to RoHS directive
and fully compatible with lead free assembly
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Applications
SONET/SDH/DWDM
Ethernet, GE, SynchE
Storage Area Networking
Fiber Channel
Digital Video
Broadband Access
Base Stations, Picocells
Block Diagram
V
DD
Output
Crystal
Oscillator
E/D
Page1
Gnd
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Specifications
Performance Specifications
Table 1. Electrical Performance, 5V Option
Parameter
Voltage
1
Max Voltage
Current
2
≤20.000MHz
20.001 to 50.000MHz
50.001 to 75.000MHz
Current, Output Disabled
Frequency
Nominal Frequency
3
Stability
4
, (Ordering Option)
Outputs
Output Logic Levels
2
Output Logic High
Output Logic Low
Output Logic High Drive
Output Logic Low Drive
Load
Output Rise /Fall Time
2
<20.000MHz
20.000 to 50.000MHz
50.001 to 75.000MHz
Output Leakage, Output Disabled
Duty Cycle
2,5
Period Jitter
6
RMS
Peak-Peak
RMS Jitter, 12k-20MHz
Output Enable/Disable
7
Output Enable
Output Disable
Disable time
Enable Internal Pull-Up Resistor
Start-Up Time
Operating Temp, (Ordering Option)
1]
2]
3]
4]
5]
6]
7]
Symbol
V
DD
I
DD
Min
Supply
4.5
-0.7
Typical
5.0
Maximum
5.5
7
10
30
40
30
Units
V
V
mA
uA
MHz
ppm
f
N
1.544
75.000
±20, ±25, ±32, ±50, ±100
V
OH
V
OL
I
OH
I
OL
I
OUT
t
R
/t
F
0.9*V
DD
0.1*V
DD
16
16
15
8
5
2
V
V
mA
mA
pF
ns
I
Z
45
фJ
3.0
21
фJ
Enable/Disable
V
IH
V
IL
t
D
100
t
SU
T
OP
-10/70 or -40/85
4.0
0.5
50
±10
55
uA
%
ps
1
ps
0.8
100
8
V
V
ns
Kohm
ms
°C
The power supply should have by-pass capacitors as close to the supply and to ground as possible, for example 0.1 and 0.01uF.
Parameters are tested with production test circuit below , Figure 1.
See Standard Frequencies and Ordering Information tables for more specific information.
Includes initial accuracy, operating temperature, supply voltage, shock and vibration (not under operation) and aging for 50 and 100ppm options.
Duty Cycle is measured as On Time/Period (Fig 2).
Broadband Period Jitter measured using Wavecrest SIA3300C, 90K samples, see Application Note for Typical Phase Noise and Jitter Performance.
The Output is Enabled if the Enable/Disable is left open.
t
R
I
DD
+
V
DD
4
.1μF
.01μF
1
+
Period
Fig 1: Test Circuit
Page2
t
F
V
OH
3
2
15pF
50%
V
OL
On Time
Fig 2: Waveform
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Specifications
Performance Specifications
Table 2. Electrical Performance, 3.3V Option
Parameter
Voltage
1
Maximum Voltage
Current
2
≤20.000MHz
20.001 to 50.000MHz
50.001 to 75.000MHz
75.001 to 125.000MHz
Current, Output Disabled
Frequency
Nominal Frequency
3
Stability
4
, (Ordering Option)
Outputs
Output Logic Levels
2
Output Logic High
Output Logic Low
Output Logic High Drive
Output Logic Low Drive
Load
Output Rise /Fall Time
2
<20.000MHz
20.000 to 50.000MHz
50.001 to 125.000MHz
Output Leakage, Output Disabled
Duty Cycle
2
,
5
Period Jitter
6
RMS
Peak-Peak
RMS Jitter, Peak - Peak
Output Enable/Disable
7
Output Enable
Output Disable
Disable time
Enable Internal Pull-Up Resistor
Start-Up Time
Operating Temp, (Ordering Option)
1]
2]
3]
4]
5]
6]
7]
Symbol
V
DD
I
DD
Min
Supply
2.97
-0.5
Typical
3.3
Maximum
3.63
5
7
20
30
40
30
Units
V
V
mA
uA
MHz
ppm
f
N
1.544
125.000
±20, ±25, ±32, ±50, ±100
V
OH
V
OL
I
OH
I
OL
I
OUT
t
R
/t
F
0.9*V
DD
0.1*V
DD
8
8
15
10
6
3
V
V
mA
mA
pF
ns
I
Z
45
фJ
3.0
21
фJ
Enable/Disable
V
IH
V
IL
t
D
100
t
SU
T
OP
-10/70 or -40/85
2.0
0.5
50
±10
55
uA
%
ps
1
ps
0.5
100
8
V
V
ns
Kohm
ms
°C
The power supply should have by-pass capacitors as close to the supply and to ground as possible, for example 0.1 and 0.01uF.
Parameters are tested with production test circuit below , Figure 1.
See Standard Frequencies and Ordering Information tables for more specific information.
Includes initial accuracy, operating temperature, supply voltage, shock and vibration (not under operation) and aging for 50 and 100ppm options.
Duty Cycle is measured as On Time/Period (Fig 2).
Broadband Period Jitter measured using Wavecrest SIA3300C, 90K samples, see Application Note for Typical Phase Noise and Jitter Performance.
The Output is Enabled if the Enable/Disable is left open.
t
R
I
DD
+
V
DD
4
.1μF
.01μF
1
+
Period
Fig 1: Test Circuit
Page3
t
F
V
OH
3
2
15pF
50%
V
OL
On Time
Fig 2: Waveform
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Specifications
Performance Specifications
Table 3. Electrical Performance, 2.5V Option
Parameter
Voltage
1
Maximum Voltage
Current
2
≤20.000MHz
20.001 to 50.000MHz
50.001 to 75.000MHz
75.001 to 100.000MHz
100.001 to 125.000MHz
Current, Output Disabled
Frequency
Nominal Frequency
3
Stability
4
,
(Ordering
Option)
Outputs
Output Logic Levels
2,3
Output Logic High
Output Logic Low
Output Logic High Drive
Output Logic Low Drive
Output Logic High Drive
5
Output Logic Low Drive
5
Load
Output Rise /Fall Time
2
<20.000MHz
20.000 to 50.000MHz
50.001 to 125.000MHz
Output Leakage, Output Disabled
Duty Cycle
2,6
Period Jitter
7
RMS
Peak-Peak
RMS Jitter, 12k-20MHz
Output Enable/Disable
8
Output Enable
Output Disable
Disable time
Enable Internal Pull-Up Resistor
Start-Up Time
Operating Temp, (Ordering Option)
1]
2]
3]
4]
5]
6]
7]
8]
Symbol
V
DD
I
DD
Min
Supply
2.25
-0.5
Typical
2.5
Maximum
2.75
5
5
7
20
25
30
30
Units
V
V
mA
uA
MHz
ppm
f
N
1.544
125.000
±20, ±25, ±32, ±50, ±100
V
OH
V
OL
I
OH
I
OL
I
OH
I
OL
I
OUT
t
R
/t
F
0.9*V
DD
0.1*V
DD
4
4
8
8
15
10
6
3
V
V
mA
mA
mA
mA
pF
ns
I
Z
45
фJ
3.0
21
фJ
Enable/Disable
V
IH
V
IL
t
D
100
t
SU
T
OP
-10/70 or -40/85
1.75
0.5
50
±10
55
uA
%
ps
1
ps
0.5
V
V
ns
Kohm
8
ms
°C
The power supply should have by-pass capacitors as close to the supply and to ground as possible, for example 0.1 and 0.01uF.
Parameters are tested with production test circuit below , Figure 1.
See Standard Frequencies and Ordering Information tables for more specific information.
Includes initial accuracy, operating temperature, supply voltage, shock and vibration (not under operation) and aging for 50 and 100ppm options.
Overtone Designs, Output Frequencies >35Hz.
Duty Cycle is measured as On Time/Period (Fig 2).
Broadband Period Jitter measured using Wavecrest SIA3300C, 90K samples, see Application Note for Typical Phase Noise and Jitter Performance.
The Output is Enabled if the Enable/Disable is left open.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page4
Performance Specifications
Table 4. Electrical Performance, 1.8V Option
Parameter
Voltage
1
Maximum Voltage
Current
2
≤20.000MHz
20.001 to 70.000MHz
70.001 to 100.000MHz
100.001 to 125.000MHz
Current, Output Disabled
Frequency
Nominal Frequency
3
Stability
4
, (Ordering Option)
Outputs
Output Logic Levels
2,3
Output Logic High
Output Logic Low
Output Logic High Drive
Output Logic Low Drive
Output Logic High Drive
5
Output Logic Low Drive
5
Load
Output Rise /Fall Time
2
<20.000MHz
20.000 to 50.000MHz
50.001 to 125.000MHz
Output Leakage, Output Disabled
Duty Cycle
2,6
Period Jitter
7
RMS
Peak-Peak
RMS Jitter, 12kHz-20MHz
Output Enable/Disable
8
Output Enable
Output Disable
Disable time
Enable Internal Pull-Up Resistor
Start-Up Time
Operating Temp, Ordering Option
1]
2]
3]
4]
5]
6]
7]
8]
Symbol
V
DD
I
DD
Min
Supply
1.71
-0.5
Typical
1.8
Maximum
1.89
3.6
5
15
20
25
30
Units
V
V
mA
uA
MHz
ppm
f
N
1.544
125.000
±20, ±25, ±32, ±50, ±100
V
OH
V
OL
I
OH
I
OL
I
OH
I
OL
I
OUT
t
R
/t
F
0.9*V
DD
0.1*V
DD
2.8
2.8
8
8
15
10
6
3
V
V
mA
mA
pF
ns
I
Z
45
фJ
3.0
21
фJ
Enable/Disable
V
IH
V
IL
t
D
1
t
SU
T
OP
-10/70 or -40/85
1.26
0.5
50
±10
55
uA
%
ps
1
ps
0.5
100
8
V
V
ns
Mohm
ms
°C
The power supply should have by-pass capacitors as close to the supply and to ground as possible, for example 0.1 and 0.01uF.
Parameters are tested with production test circuit below , Figure 1.
See Standard Frequencies and Ordering Information tables for more specific information.
Includes initial accuracy, operating temperature, supply voltage, shock and vibration (not under operation) and aging for 50 and 100ppm options.
Overtone Designs, Output Frequencies>35MHz.
Duty Cycle is measured as On Time/Period (Fig 2).
Broadband Period Jitter measured using Wavecrest SIA3300C, 90K samples, see Application Note for Typical Phase Noise and Jitter Performance.
The Output is Enabled if the Enable/Disable is left open.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page5
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