VX-503
Voltage Controlled Crystal Oscillator
VX-503
Description
The VX-503 voltage controlled crystal oscillator expands VI’s advanced VCXO performance capabilities while adhering to a package foot-
print compatible with the industry-common J-lead package. The VX-503 VCXO is a quartz stabilized square wave generator with either a
CMOS output for driving CMOS/TTL loads or a PECL output. The device is packaged in a 6 pin J-lead ceramic package and is hermetically
sealed with a grounded conductive lid.
Features
•
•
•
•
Small 14mm x 9mm
Low phase noise
Frequency Range: 1 MHZ to 800 MHZ
Previous Model: J-Type
Applications
• Clock Smoothing
• Frequency Translation
• SONET, SDH, ATM, DSLAM, ADM
Performance Speci cations
Parameter
Pin
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Min
Typ
Max
Function
Units
Condition
Pin Out Information for the CMOS output Option
Symbol
VC
Tri-State1
GND
Output
CMOS/TTL select1,2
VCXO Control Voltage
TTL logic low disables output.
TTL logic high, or no connect, enables output.
Case and Electrical Ground
VCXO Output
TTL logic low optimizes symmetry for CMOS.
TTL logic high, or NC, optimizes symmetry for
TTL
Power Supply Voltage (5.0 V or 3.3 V ±10%)
Pin 6
VCC
1. Standard option. Tri-State can be connected to pin 5 and CMOS/TTL select would be on pin 2.
2. Output is HCMOS. For frequencies >12MHz, this option optimizes symmetry for either CMOS or TTL thresholds. Ground this pin for
frequencies < 12MHz.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Performance Speci cations
Parameter
Supply voltage
Current consumption
Center Frequency
Absolute Pull Range over the operating
temperature range, aging and power
supply Vc= 0.5 to 4.5 or 0.3 to 3.0 V
Min
4.5
3.0
Typ
5.0
3.3
Max
5.5
3.6
Units
VDC
VDC
Condition
Electrical Performance @ 25°C for the CMOS output option
10mA + 0.25mA per MHz, typical
1.024
-100
-80
-50
-100
-80
-50
77.760
+100
+80
+50
+100
+80
+50
Positive
0.8
0.1
5
45
40
55
60
±1
10
3
<0.5
0
Vdd
7
-55
+125
240/10
V
°C
°C/s
V
V
ns
%
%
uA
KHz
ps
ps
MHZ
ppm
ppm
ppm
ppm
ppm
ppm
-40 ...+85 °C
-40 ...+85 °C
-40 ...+85 °C
0 ... +70 °C
0 ... +70 °C
0 ... +70 °C
Gain Transfer
Output Level High
Output Level Low
Output Rise/Fall Time
Duty Cycle
Input Leakage
Control Voltage Modulation BW
RMS Jitter, 77.760MHz
RMS Jitter, 77.760MHz, 12kHz to 20MHZ
Maximum Control Voltage
Maximum Supply Voltage
Storage Temperature
Soldering Temp./Time
1. Power supply bypass is required and a 0.1uF in parallel with a 0.01uF high frequency capacitor is recommended.
2. Figure 1 de nes these parameters. Figure 2 illustrates the load used to test devices.
3. Duty cycle is de ned as on-time versus period at 1.4 V for TTL, and 2.5 V for CMOS (5volt supply) and at 1.65 V for CMOS (3.3 volt
operation)
Output Waveform
Output Test Conditions (25±5°C) for 5 volt
devices, 15pF cap only for 3.3V.
Environmental Compliance
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 2015
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Performance Speci cations
Parameter
PreHeat Time
Ramp Up
Time Above 217 °C
Time To Peak Temperature
Time At 260 °C
Ramp Down
Min
Typ
Max
Units
Condition
60 sec Min, 180 sec Max
3 °C /sec Max
60 sec Min, 150 sec Max
480 sec Max
20 sec Min, 40 sec Max
6 °C /sec Max
Re ow Pro le (IPC/JEDEC J-STD-020C)
PECL Output Options
Pin
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Symbol
VC
N/C or E/D2
GND
Output
COutput
VCC
Function
VCXO Control Voltage
No Connect or Output Disable
Case and Electrical Ground
VCXO Output
VCXO Complementary Output
Power Supply Voltage (5.0 V or 3.3 V ±10%)
1. By setting OD high, the outputs are disabled and OUT is held low while Complementary OUT is held high. Output is enabled if E/D
< VCC-1.6V.
2. See ordering information for enable/disable option.
Electrical Performance @ 25°C for the PECL output option
Supply voltage
Current consumption
Center Frequency
Absolute Pull Range over the operating
temperature range, aging and power
supply Vc= 0.5 to 4.5 or 0.3 to 3.0 V
15
-50
-32
-50
-32
4.5
3.0
5.0
3.3
5.5
3.6
VDC
VDC
frequency dependent
170
+50
+32
+50
+32
MHZ
ppm
ppm
ppm
ppm
-40 ...+85 °C
-40 ...+85 °C
0 ... +70 °C
0 ... +70 °C
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Performance Speci cations
Parameter
Gain Transfer
Output Level High
Output Level Low
-1.025
-1.810
Min
Typ
Max
Positive
-0.880
-1.620
Units
V
V
Condition
Output Logic Levels for -40 to 85 °C Operation
Output Level High
Output Level Low
Output Rise/Fall Time
Duty Cycle
Input Leakage
Control Voltage Modulation BW
RMS Jitter, 77.760MHz, 12kHz to 20MHZ
Maximum Control Voltage
Maximum Supply Voltage
Storage Temperature
Soldering Temp./Time
-55
0
10
<1
Vdd
7
+125
240/10
45
-1.085
-1.830
-0.880
-1.555
1
55
±1
V
V
ns
%
mA
KHz
ps
V
V
°C
°C/s
1. Power supply bypass is required and a 0.1uF in parallel with a 0.01uF high frequency capacitor is recommended.
2. Transition times are measured from 20% to 80% of a full 10K ECL level swing.
Output Waveform
Output Test Conditions (25±5°C)
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Performance Speci cations
Parameter
Min
Typ
Max
Units
Condition
Tape and Reel Dimensions (mm)
Tape Dimensions
Product
J-Type
A
24
B
11.5
C
1.5
D
4
E
12
Reel Dimensions
F
1.78
G
21
H
13
I
100
J
5
K
25
L
330
# Per
Reel
200
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
