3.3V Surface Mount 5x7mm
Stratum 3 HCMOS TCXO
T501
Features:
3.3V Operation
Low Jitter <1 pS RMS
TCXO
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630-851-4722
Fax: 630- 851- 5040
The Connor-Winfield T501 is a 5x7mm Surface
Mount, Temperature Compensated Crystal
Oscillator (TCXO). Operating at 3.3Vdc, the
T501 will maintain ±4.6ppm frequency toler-
ance over 20 years. The T501 is offered for
applications where small size and Stratum 3
performance are required.
Overall Frequency Tolerance:
±4.6ppm over 20 Years
Hold Over Stability: 0.28ppm
Temperature Range: 0 to 70°C
Tri-State Enable / Disable
Surface Mount Package
www.conwin.com
Tape and Reel Packaging
Absolute Maximum Ratings
Parameter
Minimum
-55
Nominal
Maximum
125
Units
°C
Notes
Storage Temperature
Supply Voltage (Vcc)
Enable / Disable Voltage
-
-
-
-0.5
7.0
Vdc
Vdc
-0.5
7.0
Operating Specifications
Parameter
Minimum
Nominal
Maximum
20.0
Units
MHz
Vdc
mA
Notes
Frequency Range (Fo)
Supply Voltage (Vcc)
Supply Current (Icc)
12.8
3.135
-
-
3.3
-
3.465
6
Jitter:
(BW=10 Hz to 20 MHz)
(BW=12 kHz to 20 MHz)
-
-
-
-
5
1
ps RMS
dBc/Hz
SSB Phase Noise at:
10 Hz offset
-
-
-
-
-85
-
-
-
-
100 Hz offset
-110
-125
-135
1 kHz offset
≥ 10 kHz offset
Hold Over Stability
Parameter
Minimum
Nominal
Maximum
Units
Notes
Hold Over Stability
(ꢀFmaꢁ-Fminꢂ/2*Fo)
-0.28
0
-
-
-
+0.28
70
ppm
°C
Temperature Range
Total Hold Over Stability
-0.32
+0.32
ppm
1
Free Run Accuracy
Parameter
Minimum
Nominal
Maximum
+4.6
Units
ppm
°C
Notes
Total Frequency Tolerance
Temperature Range
-4.6
0
-
-
2
70
Input Characteristics
Parameter
Minimum
Nominal
Maximum
Units
Notes
Enable Voltage (High)
or open circuit (Vih)
≥ 0.6
-
-
-
Vdc
Vdc
3
Disable Voltage (Low)
Output Tri-stated ((Vil)
-
≤ 0.2
HCMOS Output Characteristics
Parameter
Minimum
Nominal
Maximum
Units
Notes
US Headquarters:
630-851-4722
European Headquarters:
+353-61-472221
Load
-
-
15
pf
Voltage: High (Voh)
Low (Vol)
≥ 0.9 *Vcc
-
-
-
Vdc
-
≤ 0.1 *Vcc
Duty Cycle at 50% of Vcc
Rise / Fall Time 10% to 90%
45
-
50
-
55
9
%
nS
Bulletin
Tx100
Ordering Information
Notes:
Page
1 of 2
1. Inclusive of Hold Over stability, supply voltage change (±5%), aging, 24 hours
2. Inclusive of calibration @ 25°C frequency vs. change in temperature, change in supply voltage
(±5%), load change (±5%), reflow soldering process and 20 years aging.
T501 - 20.00 MHz
Revision
02
3. Leave Pad 8 unconnected if enable / disable function is not required. When tri-stated, the output
stage is disabled but the oscillator and compensation circuit are still active (current consumption ≤ 1 mA).
TCXO
SERIES
CENTER
FREQUENCY
Date
05 Nov 2003
Specifications subject to change without notice. All dimensions in inches. © Copyright 1998 The Connor-Winfield Corporation