VCXO-700-ECE-KX [VECTRON]
Voltage Controlled Crystal Oscillator; 压控晶体振荡器
| 型号： | VCXO-700-ECE-KX |
| 厂家： | 
Vectron International, Inc |
| 描述： | Voltage Controlled Crystal Oscillator |
| 文件： | 总6页 (文件大小：307K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
VX-700
Voltage Controlled Crystal Oscillator
Previous Vectron Model VC-710
VX-700
Description
The VX-700 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 VX-700 is housed in an industry standard hermetically sealed LCC package and available in tape and reel.
Features
Fundamental VCXO with no subharmonics or spurs
Applications
Ideal for PLL circuits for clock smoothing and frequency
translation
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Low Jitter, sub 1pS performance
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SONET, SDH
Output Frequencies from 77.76 MHz to 200 MHz
3.3 V Operation
Synchronous Ethernet
Fiber Channel
LVPECL Output
LAN / WAN
Output Disable Feature
Test and Measurement
Excellent 20ppm temperature stability,
0/70°C or -40/85°C operating temperature
Small Industry Standard Package, 5.0x7.5x1.8mm
Product is free of lead and compliant to EC RoHS Directive
Block Diagram
Complementary
Output
Output
VDD
Crystal
Oscillator
VC
E/D
Gnd
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page1
Performance Specifications
Table 1. Electrical Performance
Parameter
Symbol
Min
Typical
Maximum
Units
Supply
Voltage1
VDD
IDD
3.135
3.3
50
3.465
90
V
Current (No Load)
mA
Frequency
77.7600
50
Nominal Frequency2
Absolute Pull Range 3,6
Linearity3
Gain Transfer Positive3 (See pg 5)
Temperature Stability3
fN
200
10
MHz
ppm
%
APR
Lin
KV
5
+65
20
ppm/V
ppm
fSTAB
Outputs
Output Logic Levels3
Output Logic High
Output Logic Low
V
VOH
VOL
VDD-1.025
VDD-1.810
VDD-0.950
VDD-1.700
VDD-0.880
VDD-1.620
Current
IOUT
20
mA
Rise Time4
Fall Time
tR
tF
1
1
ns
ns
Symmetry3
SYM
фJ
45
50
0.3
0.5
3.0
20
55
0.5
0.7
%
ps
Jitter (12 kHz - 20 MHz BW)155.52MHz5
Jitter (50 kHz - 80 MHz BW)155.52MHz5
Period Jitter, RMS (155.520 MHz)7
Period Jitter, Peak - Peak (155.520MHz)7
Spurious Suppression2
фJ
ps
фJ
ps
фJ
ps
-80
dBc
Control Voltage
Control Voltage Range for APR
Control Voltage Input Impedance
Control Voltage Modulation BW
VC
0.3
3.0
V
ZIN
75
10
KΩ
kHz
20
BW
Enable/Disable
0.7*VDD
Output Enabled, Option A 8
Output Disabled, Option A
Output Enabled, Option C 8
Output Disabled, Option C
VIH
VIL
V
V
0.3*VDD
0.2*VDD
VIL
VIH
0.7*VDD
Operating Temperature
Package Size
TOP
0/70 or -40/85
5.0 x 7.5 x 1.8
°C
mm
1] The VX-700 power supply should be filtered, eg, 0.1 and 0.01uF to ground
2] See Standard Frequencies and Ordering Information tables for more specific information
3] Parameters are tested with production test circuit below (Fig 1).
4] Measured from 20% to 80% of a full output swing (Fig 2).
5] Integrated across stated bandwidth.
6] Tested with Vc = 0.3V to 3.0V unless otherwise stated in part description
7] Broadband Period Jitter measured using Lecroy Wavemaster 8600A 6 GHz Oscilloscope, 25K samples taken. See application note.
8] Output is Enabled if E/D is left floating
Fig 1: Test Circuit
Fig 2: LVPECL Waveform
SYM = 100 x tA / tR
tR
tF
tA
tR
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page2
Outline Drawing & Pad Layout
6
5
4
XVX700YWW
CCC-CCCC
XXXMXXX
1
2
3
Dimensions in inches (mm)
Table 2. Pin Out
Pin
1
Symbol
VC
Function
VCXO Control Voltage
2
OE
Enable/Disable
**See Ordering Options**
3
4
5
6
GND
Output
COutput
VCC
Case and Electrical Ground
Output
Complementary Output
Power Supply Voltage (3.3V 10%)
Typical Phase Noise
Typical Gain
VX-700 @ 128.00 MHz
200
150
100
50
140
120
100
80
Vc (volts)
Pull
0
Gain
0
0.5
1
1.5
2
2.5
3
60
-50
40
-100
-150
-200
20
0
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page3
Suggested Output Load Configurations
The VX-700 incorporates a standard PECL output scheme, which are un-terminated emitters as shown in Figure 3. There are numerous application notes
on terminating and interfacing PECL logic and the two most common methods are a single resistor to ground, Figure 4, and a pull-up/pull-down scheme
as shown in Figure 5. An AC coupling capacitor is optional, depending on the application and the input logic requirements of the next stage.
One of the most important considerations is terminating the Output and Complementary Outputs equally. An unused output should not be left un-termi-
nated, and if it one of the two outputs is left open it will result in excessive jitter on both. PC board layout must take this and 50 ohm impedance matching
into account. Load matching and power supply noise are the main contributors to jitter related problems.
Figure 4 Single Resistor Termination Scheme
Figure 5 Pull-Up Pull-Down Termination
Figure 3 Standard PECL Output Configuration
Resistor values are typically 120 to 240 ohms
Reliability
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and IR reflow
simulation. The VX-700 family is capable of meeting the following qualification tests:
Table 3. Environmental Compliance
Parameter
Conditions
Mechanical Shock
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
MSL 1
Typical Characteristics - Phase Noise
Mechanical Vibration
Solderability
Gross and Fine Leak
Resistance to Solvents
Moisture Sensitivity Level
Contact Pads
Gold over Nickel
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 datasheet.
Exposure to absolute maximum ratings for extended periods may adversely affect device reliability. Permanent damage is
also possible if OD or Vc is applied before Vcc.
Table 4. Absolute Maximum Ratings
Parameter
Power Supply
Symbol
VDD
Ratings
0 to 6
Unit
V
Output Current
IOUT
25
mA
V
Voltage Control Range
Storage Temperature
Soldering Temp/Time
VC
0 to VCC
-55 to 125
260 / 40
TS
°C
TLS
°C / sec
Although ESD protection circuitry has been designed into the VX-700 proper precautions should be taken when handling
and mounting. VI employs a human body model (HBM) and a charged device model (CDM) for ESD susceptibility testing
and design protection evaluation.
Table 5. ESD Ratings
Model
Human Body Model
Minimum
500V
Conditions
MIL-STD-883, Method 3015
JESD22-C101
Charged Device Model
500V
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page4
IR
IR Reflow
Table 6. Reflow Profile (IPC/JEDEC J-STD-020C)
Parameter
Symbol
Value
PreHeat Time
Ts-min
tS
60 sec Min, 180 sec Max
150°C
200°C
Ts-max
Ramp Up
Time Above 217 °C
Time To Peak Temperature
Time at 260 °C
RUP
tL
3 °C/sec Max
60 sec Min, 150 sec Max
480 sec Max
T25C to peak
tP
20 sec Min, 40 sec Max
6 °C/sec Max
Ramp Down
RDN
The device 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. The VX-700 device is
hermetically sealed so an aqueous wash is
not an issue.
Termination Plating:
Electroless Gold Plate over Nickel Plate
Tape & Reel (EIA-481-2-A)
Table 7. Tape and Reel Information
Tape Dimensions (mm)
Reel Dimensions (mm)
Dimension
Tolerance
VX-700
W
Typ
16
F
Do
Typ
1.5
Po
Typ
4
P1
Typ
8
A
B
C
Typ
13
D
N
Min
50
W1
Typ
16.4
W2
Max
22.4
# Per
Reel
Typ
7.5
Typ
178
Min
1.5
Min
20.2
200
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page5
Table 8. Standard Output Frequencies (MHz)
77.76000
100.00000
120.00000
134.40000
148.35160
160.00000
175.59375
200.0000
80.00000
101.99200
122.80000
135.00000
148.50000
161.13280
180.00000
81.00000
102.40000
122.88000
138.04860
150.00000
162.00000
184.00000
88.47360
106.25000
124.41600
139.23000
153.60000
166.62700
184.32000
91.08000
108.00000
125.00000
139.26400
154.00000
166.62860
186.66600
92.16000
110.00000
128.00000
139.50000
155.52000
167.33160
187.50000
93.31200
112.00000
133.33000
143.36000
156.25000
168.04067
192.00000
96.00000
112.64000
134.21770
144.00000
157.50000
175.00000
192.45600
Ordering Information
VX-700- E C E - K X A N - xxxMxxxxxx
Frequency in MHz
Product
VCXO, 5x7 Package
Other (Future Use)
N: Standard
Voltage Options
Enable/Disable
A: Enable High
C: Enable Low
E: +3.3 Vdc 5%,
Output
C: LVPECL
Stability
X: Standard
E: 20ppm Temperature Stability
Temp Range
T: 0/70°C
E: -40/85°C
Absolute Pull Range
K: 50ppm
*Note: not all combination of options are available.
Other specifications may be available upon request.
Example: VX-700-ECE-KXAN-155M520000
For Additional Information, Please Contact
USA:
Europe:
Asia:
Vectron International
267 Lowell Road
Vectron International
Vectron International
Landstrasse, D-74924
Neckarbischofsheim, Germany
Tel: +49 (0) 3328.4784.17
1F-2F, No 8 Workshop, No 308 Fenju Road
WaiGaoQiao Free Trade Zone
Pudong, Shanghai, China 200131
Tel: 86.21.5048.0777
Hudson, NH 03051
Tel: 1.888.328.7661
Fax: 1.888.329.8328
Fax: +49 (0) 3328.4784.30
Fax: 86.21.5048.1881
Disclaimer
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.
Rev: 1/10/2009
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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