Data Sheet
VC-710
Voltage Controlled Crystal Oscillator
Features
•
Small Industry Standard Package, 5.0 x 7.5 x 1.8 mm
•
Output Frequencies from 80 MHz to 200 MHz
•
3.3 V Operation
•
HFF crystal for ultra low jitter
•
Complementary LVPECL Outputs
•
0/70° C or –40/85° C operating temperature
•
Enable /Disable
•
Product is compliant to RoHS directive
and fully compatible with lead free assembly
Applications
PLL circuits for Clock Smoothing and Frequency Translation
•
Fiber Channel
•
SONET
•
SDH, ITU-T G.709
•
SONET, GR-253-CORE Issue3
Description
The VC-710 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 oscillator is
housed in an industry standard hermetically sealed leadless
surface mount package and is available on tape and reel.
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: December 13, 2006
Page 1 of 6
VC-710 Voltage Controlled Crystal Oscillator
Electrical Performance
Parameter
Frequency
Supply Voltage
(+3.3 V)
Supply Current
Output Logic Levels
Output Logic High
Output Logic Low
Transition Times
Rise Time
Fall Time
Symmetry or Duty Cycle
Operating temperature (ordering
option)
Jitter (12 kHz – 20 MHz BW), 155.52 MHz
Jitter (50 kHz – 80 MHz BW), 155.52 MHz
Symbol
f
O
V
DD
I
DD
Min
80
3.135
Typical
155.52
3.3
50
Maximum
200
3.465
90
Vcc -0.880
Vcc -1.620
Units
MHz
V
mA
V
V
+25 ºC
+25 ºC
V
OH
V
OL
Vcc -1.025
Vcc -1.810
Vcc -0.950
Vcc -1.700
t
R
t
F
SYM
45
0.5
0.5
50
0/70 or –40/85
0.3
0.5
-64
-95
-123
-143
-146
-146
-146
1
1
55
ns
ns
%
°C
ps (rms)
ps (rms)
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Phase Noise, f
0
= 155.52 MHz
10 Hz offset
100 Hz offset
1 kHz offset
10 kHz offset
100 kHz offset
1 MHz offset
10 MHz offset
Test Conditions for APR (+3.3V)
Absolute Pull Range (APR)
Gain Transfer
Control Voltage Bandwidth (-3dB)
Enable/Disable
1
Output Enabled, F option
Output Disabled, F option
Output Enabled, B option
Output Disabled, B option
Package Size
V
C
APR
BW
0.3
+ 50
20
V
DD
*0.7
3.0
Positive, 65
100
V
ppm
ppm/V
kHz
V
V
V
V
mm
V
DD
*0.3
V
DD
*0.2
V
DD
*0.7
5.08 x 7.5 x 1.8
1. Output is enabled if the E/D, pin 2, is left open on F option. E/D must be terminated on B option.
(-1.3V to +2V)
1
6
(+2V)
>1.4V or Open
2
(-1.3V)
5
COutput
t
R
t
F
SYM = 100 x t
A
/ t
B
V
OH
80%
3
4
50
Ω
Output
50
Ω
20%
50%
Test Circuit Notes:
Ω
1) To Permit 50 Measurement of Outputs, all DC Inputs are Biased Down 1.3V.
2) All Voltage Sources Contain Bypass Capacitors to Minimize Supply Noise.
3) 50
Ω
Terminations are W ithin Test Equipment.
t
A
t
B
V
OL
Figure 1. Test Circuit ( 3.3 V)
Figure 2. PECL Waveform
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: December 13, 2006
Page 2 of 6
VC-710 Voltage Controlled Crystal Oscillator
Outline Diagram
6
5
VDUGLA
35.328
VI YWW
1
2
3
4
Pad Layout
Pin Out
Pin
1
2
3
4
5
6
Symbol
V
C
OE
GND
Output
COutput
V
CC
Function
VCXO Control Voltage
Enable / Disable
Case and Electrical Ground
Output
Complementary Output
Power Supply Voltage (3.3 V)
Tape and Reel (EIA-481-2-A)
Po
ØDo
W2
F
W
D
C
N
A
P1
W1
B
Tape Dimensions (mm)
Dimension
Tolerance
VC-710
Reel Dimensions (mm)
F
Do
Typ
1.5
W
Typ
16
Po
Typ
4
P1
Typ
8
A
Typ
178
B
Min
1.5
C
Typ
13
D
Min
20.2
N
Min
50
W1
Typ
16.4
W2
Max
22.4
Typ
7.5
# Per
Reel
200
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: December 13, 2006
Page
3
of 6
VC-710 Voltage Controlled Crystal Oscillator
Absolute Maximum Ratings
Parameter
Power Supply
Voltage Control Range
Storage Temperature
Symbol
V
DD
V
C
TS
Ratings
0 to 6
0 to V
DD
-55 to 125
Unit
V
V
°C
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 data sheet. Exposure to absolute maximum
ratings for extended periods may adversely affect device reliability.
Reliability
The VC-710 family is capable of meeting the following qualification tests:
Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Solderability
Gross and Fine Leak
Resistance to Solvents
Moisture Sensitivity
Conditions
MIL-STD-883, Method 2002
MIL-STD-883, Method 2007
MIL-STD-883, Method 2003
MIL-STD-883, Method 1014
MIL-STD-883, Method 2015
MSL1
Handling Precautions
Although ESD protection circuitry has been designed into the VC-710 proper precautions should be taken when handling and mounting. VI
employs a human body model and a charged-device model (CDM) for ESD susceptibility testing and design protection evaluation.
ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
500
500
Conditions
MIL-STD 883, Method 3015
JESD 22-C101
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: December 13, 2006
Page
4
of 6
VC-710 Voltage Controlled Crystal Oscillator
Suggested IR profile
The VC-710 is 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 and parameters are listed in the table below.
The contact pads are gold over nickel so lower IR reflow temperatures such as 220°C can be used (device is
backwards compatible with a lead solder assembly).
The VC-710 is hermetically sealed so an aqueous wash is not an issue.
Reflow Profile (IPC/JEDEC J-STD-020C)
Parameter
PreHeat Time
Ramp Up
Time Above 217
o
C
Time To Peak Temperature
Time At 260
o
C
Ramp Down
Symbol
t
S
R
UP
t
L
t
AMB-P
t
P
R
DN
Value
60 sec Min, 180 sec Max
3
o
C/sec Max
60 sec Min, 150 sec Max
480 sec Max
20 sec Min, 40 sec Max
6
o
C/sec Max
t
L
260
R
UP
t
P
Temperature (DegC)
217
200
R
DN
150
t
S
t
AMB-P
25
Time (sec)
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: December 13, 2006
Page
5
of 6
MicroPython开源版块
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
