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 120 MHz to 200 MHz
•
3.3 V Operation
•
HFF crystal for ultra low jitter
•
Complementary PECL Outputs
•
Low phase noise and custom options
•
0/70° C or –40/85° C operating temperature
•
Enable /Disable (PECL)
•
RoHS compliant l ead free construction
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: Jan 17 2005
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
120
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
1
1
55
ns
ns
%
°C
ps (rms)
ps (rms)
Phase Noise, f
0
= 155.52 MHz
10 Hz offset
100 Hz offset
1kHz 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)
Package Size
V
C
APR
BW
0.3
+ 50
20
-64
-95
-123
-143
-146
-146
-146
3.0
Positive, 65
100
5.0 x 7.5 x 1.8
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
V
ppm
ppm/V
kHz
mm
(-1.3V to +2V)
1
6
(+2V)
80%
t
R
t
F
SYM = 100 x t
A
/ t
B
V
OH
>1.4V or Open
2
(-1.3V)
5
COutput
50%
3
4
50
Ω
Output
20%
V
OL
t
A
50
Ω
t
B
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 Within Test Equipment.
Figure 2. PECL Waveform
Figure 1. Test Circuit ( 3.3 V)
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: Jan 17 2005
Page 2 of 6
VC-710 Voltage Controlled Crystal Oscillator
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: Jan 17 2005
Page
3
of 6
VC-710 Voltage Controlled Crystal Oscillator
Outline Diagram
6
5
4
Pad Layout
V C 7 1 0 DF F G F A
XXX.XXX
VI YWW
1
2
3
1.77±0.18
[0.070±0.007]
1.27
[0.050]
5.08±0.15
[0.200±0.006]
1.96
[0.077]
7.49±0.15
[0.295±0.006]
1.91
[0.075]
3.66
[0.144]
1.78
[0.070]
2.54
[0.100]
5.08
[0.200]
mm
[inch]
1.27
[0.050]
R0.64
[0.025]
2.54
[0.100]
5.08
[0.200]
mm
[inch]
Pin Out
Pin
1
Symbol
V
C
OE
Function
VCXO Control Voltage
Enable / Disable
Enabled = High or Open
Disabled = Low
High impedance output (Oscillator running)
Case and Electrical Ground
Output
Complementary Output
Power Supply Voltage (3.3 V)
2
3
4
5
6
GND
Output
COutput
V
CC
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: Jan 17 2005
Page
4
of 6
VC-710 Voltage Controlled Crystal Oscillator
Absolute Maximum Ratings
Parameter
Power Supply
Voltage Control Range
Storage Temperature
Soldering Temp/Time
Symbol
V
CC
V
C
TS
T
LS
Ratings
0 to 6
0 to V
CC
-55 to 125
240/10
Unit
V
V
°C
°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 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
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
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
Recommended Solder Reflow Profile
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and IR
reflow simulation. The conditions a device can withstand are well understood and devices can be subjected to the
profile above. This profile shows a ramp up condition to prevent thermal shock, a preheat period in which the flux is
activated, a ramp up to 183°C which is the reflow temperature of Sn/Pb eutectic, and a gradual cool down. The
time above 183°C should not exceed 60 seconds and the peak temperature should be no more than 220°C for 10
seconds. The VC-710’s are hermetically sealed so an aqueous wash is not an issue.
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: Jan 17 2005
Page
5
of 6
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