3.3V Surface Mount
Oscillator
VPLD54TEM
VCXO
Features:
Low Profile, Surface Mount Package
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630-851-4722
Fax: 630- 851- 5040
The Connor-Winfield VPLD54TEM is a 3.3V
Voltage Controlled Crystal Oscillator (VCXO)
with Differential LVPECL outputs and Enable/
Disable function. The VPLD54TEM is designed
for use with PLL systems in SONET/SDH sys-
tems requiring low jitter and tight stability. No
uses of multiplication schemes are used in this
oscillator design.
3.3V Operation
Low Jitter <1pS RMS
Total Frequency Tolerance ±20 ppm
Temperature Range 0° to 70°C
Differential LVPECL Outputs
Enable / Disable Function
www.conwin.com
Absolute Maximum Ratings
Parameter
Minimum
-40
Nominal
Maximum
Units
°C
Vdc
Vdc
Notes
Storage Temperature
Supply Voltage (Vcc)
Control Voltage (Vc)
-
-
-
85
7.0
7.0
-0.5
-0.5
Operating Specifications
Parameter
Minimum
Nominal
Maximum
Units
Notes
Center Frequency (Fo)
400.0
625.0
-
-
MHz
622.08
644.531250
Total Frequency Tolerance
Operating Temperature Range
Supply Voltage (Vcc)
-20
-
-
20
70
3.465
100
ppm
°C
Vdc
mA
1
0
3.135
-
3.3
-
Supply Current (Icc)
Jitter:
(BW=10 Hz to 20 MHz)
(BW=12 kHz to 80 MHz)
-
-
-
-
5
1
ps RMS
dBc/Hz
SSB Phase Noise
@ 100 Hz offset
@ 1 kHz offset
-
-
-
-
-60
-90
-
-
-
-
@ 10 kHz offset
@ 100 kHz offset
-130
-135
Input Characteristics
Parameter
Minimum
Nominal
Maximum
Units
Vdc
ppm
%
Ohm
kHz
Notes
Control Voltage Range (Vc)
Absolute Pull Range (APR)
Monotonic Linearity
Input Impedance
0.3
25
-10
-
1.65
-
-
50K
-
3.0
-
10
-
2
Modulation Bandwidth (3dB)
10
-
Disable Input Voltage (Low) (Vil)
Enable Input Voltage (High) (Vih)
-
-
-
1.68
-
Vdc
3
2.275
LowVoltage PECL Output Characteristics
Parameter
Minimum
Nominal
Maximum
Units
Notes
Load
Voltage: High (Voh)
Low (Vol)
-
-
-
-
50
Ohms
4
US Headquarters:
630-851-4722
European Headquarters:
+353-61-472221
2.275
-
45
-
Vdc
%
1.68
Duty Cycle at 50% Level
50
55
Notes:
Bulletin
Vx387
1. Inclusive of calibration @25°C, frequency stability vs. temperature, supply and load
variations, shock vibration and aging for ten years. Control voltage (Vc) = 1.65 Vdc.
Ordering Information
Page
1 of 2
2. Control voltage for (Fo) = 1.65 Vdc Typical. Positive Transfer Function
VPLD54TEM - 622.08 MHz
Revision
02
3. When oscillator is disabled the true output is in a low state (Vol) and the
complementary output is in the high state (VoH)
VCXO
CENTER
FREQUENCY
Date
14 January 2003
4. 50 ohm termination into Vcc-2V or Thevein equivalent.
SERIES
Specifications subject to change without notice. All dimensions in inches. © Copyright 1998 The Connor-Winfield Corporation