VCUMLA-44.736 概述
Voltage Controlled Crystal Oscillator 压控晶体振荡器
VCUMLA-44.736 数据手册
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PDF下载V-Type
Voltage Controlled Crystal Oscillator
Features
• Output frequencies to 80.000 MHz
• 5.0 or 3.3 V operation
• Tri-State Output
• Low jitter < 6ps rms
• VCXO with CMOS outputs
• APR to 100 ppm
• 0/70 or –40/85 °C temperature range
• Hermetically sealed ceramic SMD package
Product is compliant to RoHS directive
and fully compatible with lead free assembly
The V-Type Voltage Controlled Crystal Oscillator
Applications
• SONET/SDH
• DWDM
• xDSL/PCMCIA cards
• Digital Video
ESD Diodes
Description
Vc
fO
Output
Buffer /
Tri-state
Vectron’s V-Type Voltage Controlled Crystal
Oscillator (VCXO) is a quartz stabilized square
wave generator with a CMOS output and is
tested at CMOS and TTL (5.0 volt operation)
logic levels.
Input
Buffer
The V-Type’s small footprint and low profile
make it ideally suitable for PCMCIA applications
as well as any other where size is limited but
performance is required.
Vectron International 267 Lowell Road, Hudson NH 03051
Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
V-Type Voltage Controlled Crystal Oscillator
Performance Characteristics
Table 1. Electrical Performance
Parameter
Symbol
fO
VDD
Min
1.024
2.97
4.5
Typical
Maximum
80.000
3.63
Units
MHz
V
Frequency
Supply Voltage 1
(+3.3 V)
(+5.0 V)
3.3
5.0
12
5.5
25
Supply Current
IDD
mA
Output Logic Levels
Output Logic High2
Output Logic Low2
Transition Times
Rise Time2
VOH
VOL
0.9*VDD
V
V
0.1VDD
tR
tF
1
1
3
3
ns
ns
Fall Time2
Tristate
Output Enabled
Output Disabled
Duty Cycle3
Operating temperature (ordering option)
Test Conditions for APR (+5V option)
Test Conditions for APR (+3.3V option)
Absolute Pull Range (ordering option)
VIN
VIL
SYM
2.5
V
V
%
°C
V
V
0.7
(ordering option)
40/60 or 45/55
0/70 or –40/85
VC
VC
APR
0.5
0.3
±50
±70
±80
±100
4.5
3.0
ppm
Gain Transfer (See Figure 3)
Control Voltage Leakage Current
Control Voltage Bandwidth (-3dB)
Phase Noise
Positive
ppm/V
uA
kHz
IVCXO
BW
±1
10
10 Hz Offset
100 Hz Offset
1 KHz Offset
10 KHz Offset
-55
-85
-115
-142
-148
-151
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
mm
100 KHz Offset
1 MHz Offset
Package Size
7.49 x 5.08 x 1.8
1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended.
2. Figure 1 defines these parameters. Figure 2 illustrates the equivalent five gate TTL load and operating conditions under which
these parameters are tested and specified.
3. Symmetry is defined as (ON TIME/PERIOD with Vs= 1.4 V for TTL and Vs=2.5 V for CMOS, 5 volt operation, and Vs=1.65V
for 3.3 Volt operation.
tF
tR
IDD
650Ω
80%
Vs
6
1
2
5
3
+
-
4
VDD
.01µF
.1µF
20%
IC
VC
On Time
15pF
1.8k
+
-
Period
Figure 1. Output Waveform
Figure 2. Typical Output Test Conditions (25±5°C)
Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
V-Type Voltage Controlled Crystal Oscillator
Outline Diagram, Pad Layout and Pin Out
Pin #
1
Symbol
VC
Function
Control Voltage
2
Tri-state or N/C
(ordering option)
GND
Logic low disables output
Logic high or no connection enables output waveform
Ground
3
4
5
fO
Output Frequency
Tri-state or N/C
(ordering option)
VDD
Logic low disables output
Logic high or no connection enables output waveform
Supply Voltage
6
Tape and Reel
J
F
G
D
C
B
A
I
L
E
H
K
Tape and Reel Dimensions (mm)
Tape Dimensions
Reel Dimensions
# Per
Product
V-Type
A
16
B
7.5
C
1.55
D
4
E
8
F
1.78
G
20.6
H
13
I
55
J
6
K
12.4
L
178
Reel
500
Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
V-Type Voltage Controlled Crystal Oscillator
Absolute Maximum Ratings
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.
Table 2. Absolute Maximum Ratings
Parameter
Power Supply
Storage Temperature
Voltage Control Range
Symbol
VDD
Tstorage
VC
Ratings
6
-55/125
0 to VDD
Unit
Vdc
°C
V
200.0
150.0
100.0
50.0
0.0
-50.0
-100.0
-150.0
-200.0
0.30
0.60
0.90
1.20
1.50
1.80
2.10
2.40
2.70
3.00
Control Voltage (volts)
Figure 3. Typical Frequency Pull Versus Control Voltage, 35.328MHz Output, 3.3 Volt
Supply
Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
V-Type Voltage Controlled Crystal Oscillator
Reliability
The V-Type is capable of meeting the following qualification tests.
Table 3. Environmental Compliance
Parameter
Conditions
Mechanical Shock
Mechanical Vibration
Solderability
Gross and Fine Leak
Resistance to Solvents
MIL-STD-883 Method 2002
MIL-STD-883 Method 2007
MIL-STD-883 Method 2003
MIL-STD-883 Method 1014
MIL-STD-883 Method 2016
Handling Precautions
Although ESD protection circuitry has been designed into the the V-Type, 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 thresholds are dependent on
the circuit parameters used to define the model. Although no industry wide standard has been adopted
for the CDM, a standard HBM of resistance = 1.5kohms and capacitance = 100pF is widely used and
therefore can be used for comparison purposes.
Table 4. ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
1500
1000
Conditions
MIL-STD-883 Method 3115
JESD 22-C101
The V-Type 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 V-Type is hermetically sealed so an aqueous wash is not an issue.
Table 5. Reflow Profile (IPC/JEDEC J-STD-020C)
Parameter
Symbol
Value
PreHeat Time
t S
60 sec Min, 180 sec Max
Ramp Up
R UP
t L
3 oC/sec Max
60 sec Min, 150 sec Max
480 sec Max
Time Above 217 oC
Time To Peak Temperature
Time At 260 oC
t AMB-P
t P
20 sec Min, 40 sec Max
6 oC/sec Max
Ramp Down
R DN
t L
t P
260
R UP
217
200
R DN
150
t S
t AMB-P
25
Time (sec)
Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
V-Type Voltage Controlled Crystal Oscillator
Standard Frequencies (MHz)
1.024
4.000
1.544
4.032
2.000
4.096
2.048
4.434
3.088
5.000
3.580
6.144
3.686
6.176
6.312
6.400
8.000
8.192
8.448
10.000
15.440
24.000
32.768
49.152
74.1758
12.000
16.000
24.576
34.368
50.000
74.250
12.288
16.384
24.704
35.328
51.840
77.760
12.352
18.432
27.000
38.880
52.000
13.000
19.440
30.000
40.000
61.440
14.318
20.000
30.720
40.960
62.500
15.360
20.480
32.000
44.736
65.536
Other frequencies may be available upon request
Ordering Information
V D U G L A - 44.736 MHz
Package Size
V: 6 pin ceramic LCC
Frequency
Symmetry (CMOS)
A: 50 ± 5% Tri-State on Pin #5
B: 50 ± 10% Tri-State on Pin #5
D: 50 ± 5% Tri-State on Pin #2
Supply Voltage
C: 5.0V ± 10%
D: 3.3V ± 10%
Temperature Range
C: 0°C to +70°C
L: -40°C to +85°C
Input
U: VCXO
Absolute Pull Range
G: ±50 ppm
L: Linear VCXO
M: ± 20ppm Temperature Stability
M: ±70 ppm
N: ±80 ppm
H: ±100 ppm
NOTE: Not all combinations of options are available. Other specifications may be available upon request.
For Additional Information, Please Contact:
USA: Vectron International • 267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON
EUROPE: Landstrasse, D-74924, Neckarbischofsheim, Germany •
Tel: 49 (0) 7268 8010 • Fax: 49 (0) 7268 801281
ASIA: Vectron Asia Pacific Sales 1F~2F. No.8 Workshop No.308 Fenju Rd., WaiGaoQiao Free
Trade Zone, Pudong New Area Shanghai, China 200131
•Tel: 8621 50480777 • Fax: 8621 50481881
Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice.
No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
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