VC-800_1 [VECTRON]
Voltage Controlled Crystal Oscillator; 压控晶体振荡器
| 型号： | VC-800_1 |
| 厂家： | 
Vectron International, Inc |
| 描述： | Voltage Controlled Crystal Oscillator |
| 文件： | 总6页 (文件大小：99K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
VC-800
Voltage Controlled Crystal Oscillator
Features
• Worlds Smallest VCXO, 5.0 X 3.2 X 1.5 mm
• High Frequencies to 74.250 MHz
• 5.0 or 3.3 V operation
• Linearity ≤ 10%
• Tri-State Output
• Low jitter < 6ps rms
• VCXO with CMOS outputs
• 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 VC-800 Voltage Controlled Crystal Oscillator
Applications
• SONET/SDH
• DWDM
ESD Diodes
• xDSL/PCMCIA cards
• Digital Video
Vc
fO
Description
Output
Buffer /
Tri-state
Input
Buffer
Vectron’s VC-800 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.
The VC-800 is the smallest available VCXO
making 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
VC-800 Voltage Controlled Crystal Oscillator
Performance Characteristics
Table 1. Electrical Performance
Parameter
Symbol
fO
VDD
Min
1.544
2.97
4.5
Typical
Maximum
75.000
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
VIN
VIL
SYM
2.5
40
V
V
%
0.7
60
Symmetry or Duty Cycle3
(ordering option)
Operating temperature (ordering option)
50
0/70 or –40/85
°C
V
V
Test Conditions for APR (+5V option)
Test Conditions for APR (+3.3V option)
Absolute Pull Range (ordering option)
VC
VC
APR
0.5
0.3
±50
±70
±80
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
-58
-88
-118
-143
-151
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
mm
100 KHz Offset
1 MHz Offset
Package Size
-151
5.0 x 3.2 x 1.5
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
VC-800 Voltage Controlled Crystal Oscillator
Outline Diagram, Pad Layout and Pin Out
6
5
4
1
2
3
Pin #
1
Symbol
VC
Function
Control Voltage
2
Tri-state
Logic low disables output
Logic high or no connection enables output waveform
3
4
5
GND
fO
CMOS/TTL
Ground
Output Frequency
Logic low for CMOS optimized symmetry
Logic high or no connection for TTL optimized symmetry
Supply Voltage
6
VDD
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
VC-800
A
12
B
5.5
C
1.5
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
VC-800 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
VC-800 Voltage Controlled Crystal Oscillator
Reliability
The VC-800 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 VC-800, 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 VC-800 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-800 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
VC-800 Voltage Controlled Crystal Oscillator
Standard Frequencies (MHz)
3.600
13.500
32.768
74.1758
4.096
16.384
34.560
74.250
8.192
19.440
38.785
10.000
27.000
44.736
12.960
28.375
51.840
Other frequencies may be available upon request
Ordering Information
VC - 800 - K A C - G T J – XX.XX
Product Family
VC = VCXO
Frequency (MHz)
Package
Symmetry
800= 5.0x3.2x1.5 mm
J = 50±5%
K= 50±10%
Input
K = 5.0 Vdc ± 10%
L = 3.3 Vdc ± 10%
Tristate
T = Pin 2: Enable High (or Float) / Disable Low
Output
A = CMOS
Absolute Pull Range
G = ± 50 ppm minimum
M = ± 70 ppm minimum
N = ± 80 ppm minimum
Operating Temperature
C = 0°C to 70°C
F = -40°C to 85°C
NOTE: Not all combinations of options are available.
For Additional Information, Please Contact:
USA: Vectron International, 267 Lowell Rd, Hudson, NH 03051 . . . . . . .
Tel: 1-88-VECTRON-1
Tel: 49 (0) 7268 8010
Tel: 86 21 5048 0777
Fax: 1-888-FAX-VECTRON
Fax: 49 (0) 7268 801281
Fax: 86 21 5048 1881
EUROPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASIA: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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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