Telecom
Performance
TCXO / VCTCXO
Description
:
2111 Comprehensive Drive
2111 Comprehensive Drive
Aurora, Illinois 60505
Aurora, Illinois 60505
Phone: 630- 851- 4722
Phone: 630- 851- 4722
Fax: 630- 851- 5040
Fax: 630- 851- 5040
www.conwin.com
www.conwin.com
US Headquarters:
630-851-4722
European Headquarters:
+353-61-472221
Features
Miniature 5 x 7mm Surface Mount Package
3.3V Operation
LVCMOS or Clipped Sinewave Output Logic
Frequency Stabilities Available:
T30x / T50x / T60x / T70x:
±0.28ppm
T31x / T51x / T61x / T71x:
±0.50ppm
T32x / T52x / T62x / T72x:
±1.00ppm
T33x / T53x / T63x / T73x:
±2.00ppm
• Temperature Ranges Available:
T3xx Series: 0 to 85°C
T5xx Series: 0 to 70°C
T6xx Series: -40 to 85°C
T7xx Series: -20 to 70°C
• Frequency Tolerance:
±4.60
ppm for 20 years.
• Aging: <4.63E-13 / second
• Low Jitter <1ps RMS
• Tri-State Enable/Disable Function
• Tape and Reel Packaging
• RoHS Compliant / Lead Free
•
Recommended for New Designs
•
•
•
•
The Connor-Winfield 5x7mm
Temperature Compensated
Crystal Controlled
Oscillators and Voltage
Controlled Temperature
Compensated Crystal Controlled Oscillators are
designed for use in S3 Telecom Applications.
Through the use of Analog Temperature
Compensation, this device is capable of holding
sub 1-ppm stabilities over the commercial or
the industrial temperature ranges. All models
will meet
±4.6
ppm accuracies for twenty years.
Four STRATUM 3 compliant model series are
available.
Applications:
•
•
•
•
•
•
IEEE 1588 Applications
Synchronous Ethernet slave clocks,
ITU-T G.8262 EEC options 1 & 2
Compliant to Stratum 3, GR-1244-CORE &
GR-253-CORE
Wireless Communications
Small Cells
Test and Measurement
Package Layout
0.276
±
0.006
(7.0mm)
0.079 Max.
(2.0mm)
Pad Connections
LVCMOS Test Circuit
DNC
DNC DNC
T504 0702
19.44 MHz
Pin 1
0.197
±
0.006
(5.0mm)
0.025(6 Places)
(0.635mm)
0.030
(0.762mm)
(4 Places)
10
1
2
3
4
Bottom
View
8
7
6
0.040
(1.02mm)
(6 Places)
0.100
(2.54mm)
9
5
0.038
(0.965mm)
(4 Places)
0.100
(2.54mm)
Dimensional Tolerance:
±.005 (.127mm)
±.02 (.508mm)
1:
2:
3:
4:
5:
6:
7:
8:
9:
0:
1
Do Not Connect
Do Not Connect
Do Not Connect
Ground
Output
Do Not Connect
Do Not Connect
Tri-state Enable /Disable
Supply, Vcc
Voltage Control (VCTCXO)
N/C (TCXO)
1
N/C - TCX O
VC - VCTCX O
Vcc
Supply
Voltage
.01 uF
Bypass
E/D
10
9
8
2
3
4
5
Output
7
6
15 pF
DNC DNC
Clipped Sinewave Test Circuit
DNC
DNC DNC
1
2
3
4
5
Output
Standard Frequencies Available *
6.4 MHz, 9.72 MHz, 10.0 MHz, 10.24 MHz, 12.5 MHz, 12.8 MHz,
13.5 MHz, 19.2 MHz, 19.44 MHz, 20.0 MHz, 20.48 MHz, 25.0 MHz,
27.0 MHz, 38.88 MHz
* Available frequencies from the factory for small quantity orders or
quick delivery. Additional frequencies are available.
Voltage
Control
Vcc
Supply
Voltage
.01 uF
Bypass
10
9
8
7
6
10K ohm
E/D
DNC DNC
10 pF
Ordering Information
T
Type:
Precision
TCXO
VCTCXO
5x7mm
5
Temperature
Range
3 = 0 to 85°C
5 = 0 to 70°C
6 = -40 to 85°C
7 = -20 to 70°C
0
Frequency
Stability
0 = ±0.28 ppm
1 = ±0.50 ppm
2 = ±1.00 ppm
3 = ±2.00 ppm
4
Features
2 = TCXO, LVCMOS, 3.3 Vdc
3 = TCXO, Clipped Sinewave, 3.3 Vdc
4 = VCTCXO, LVCMOS, 3.3 Vdc
5 = VCTCXO, Clipped Sinewave, 3.3 Vdc
019.44M
Output Frequency
Frequency Format
-xxx.xM Min. *
-xxx.xxxxxxM Max.*
* Amount of numbers
after the decimal point.
M = MHz
Example:
Bulletin
Page
Revision
Date
Tx176
1 of 4
16
08 Jan 2014
T504-019.44M = 5x7mm, VCTCXO, LVCMOS, 3.3Vdc, 0 to 70°C, ±28ppm, Output Frequency 19.44MHz
To order an T504 with an output frequency of: 6.4 MHz = T504-006.4M
20 MHz = T504-020.0M
38.88 MHz = T504-038.88M
Specifications subject to change without notification. See Connor-Winfield's website for latest revision. Not intended for life support
applications. All dimensions in inches. © Copyright 2014 The Connor-Winfield Corporation
Model Specifications
Model Number
Temperature Range
T302
T303
0 to 85°C
T304
T504
T604
T704
Clipped Sinewave
VCTCXO
T305
T505
T605
T705
Model Number
Temperature Range
T502
T503
0 to 70°C
Model Number
Temperature Range
T602
T603
-40 to 85°C
Model Number
Temperature Range
T702
T703
-20 to 70°C
Output Type
TCXO / VCTCXO
Frequency Range
Frequency Stability
Supply Voltage
Holdover Stability
Aging / Life
Aging / Day
Aging / Second
LVCMOS Clipped Sinewave
3.3Vdc
LVCMOS
6.4 to 40 MHz
±0.28ppm
±0.32ppm
±3.0ppm
±40ppb
4.63E-13
TCXO
TCXO
VCTCXO
1
2
3
Model Specifications
Model Number
Temperature Range
T312
T313
0 to 85°C
T314
T514
T614
T714
Clipped Sinewave
VCTCXO
T315
T515
T615
T715
Model Number
Temperature Range
T512
T513
0 to 70°C
Model Number
Temperature Range
T612
T613
-40 to 85°C
Model Number
Temperature Range
T712
T713
-20 to 70°C
Output Type
TCXO / VCTCXO
Frequency Range
Frequency Stability
Supply Voltage
Frequency Aging
LVCMOS Clipped Sinewave
3.3Vdc
LVCMOS
6.4 to 40 MHz
±0.50ppm
±3.0ppm
TCXO
TCXO
VCTCXO
1
3
Model Specifications
Model Number
Temperature Range
T322
T323
0 to 85°C
T324
T524
T624
T724
LVCMOS
VCTCXO
T325
T525
T625
T725
Clipped Sinewave
VCTCXO
1
3
Model Number
Temperature Range
T522
T523
0 to 70°C
Model Number
Temperature Range
T622
T623
-40 to 85°C
Model Number
Temperature Range
T722
T723
-20 to 70°C
Output Type
Frequency Range
Frequency Stability
Supply Voltage
Frequency Aging
LVCMOS
3.3Vdc
Clipped Sinewave
6.4 to 52 MHz
±1.00ppm
±3.0ppm
TCXO / VCTCXO
TCXO
TCXO
Model Specifications
Model Number
Temperature Range
T332
T333
0 to 85°C
T334
T534
T634
T734
LVCMOS
VCTCXO
T335
T535
T635
T735
Clipped Sinewave
VCTCXO
Model Number
Temperature Range
T532
T533
0 to 70°C
Model Number
Temperature Range
T632
T633
-40 to 85°C
Model Number
Temperature Range
T732
T733
-20 to 70°C
Output Type
TCXO / VCTCXO
LVCMOS
TCXO
Clipped Sinewave
TCXO
Frequency Range
6.4 to 52 MHz
Frequency Stability
±2.00ppm
1
Supply Voltage
3.3Vdc
Frequency Aging
±3.0ppm
3
Data Sheet: Tx176 Rev: 16 Date: 01/08/14
© Copyright 2014 The Connor-Winfield Corp. All Rights Reserved Specifications
subject to change without notice
Operating Specifications
Parameter
TCXO Frequency Calibration @ 25°C
Supply Voltage Variation. (Vcc±5%)
Load Coefficient, ±5%
Static Temperature Hysteresis
Total Frequency Tolerance
Supply Voltage (±5%)
(Vcc)
Supply Current
(Icc)
Period Jitter
Integrated Phase Jitter (BW=12kHz to 20MHz)
SSB Phase Noise at 10Hz offset
SSB Phase Noise at 100Hz offset
SSB Phase Noise at 1KHz offset
SSB Phase Noise at >10KHz offset
SSB Phase Noise at >100KHz offset
Start Up Time
Minimum
-1.00
-0.05
-0.05
-0.4
-4.60
3.135
-
-
-
-
-
-
-
-
-
Nominal
-
-
-
-
-
3.3
6
3
0.3
-90
-120
-140
-150
-152
-
Maximum
1.00
0.05
0.05
0.4
4.60
3.465
10
5
1.0
-85
-115
-135
-145
-150
1
ppm
ppm
ppm
ppm
ppm
Vdc
mA
ps rms
ps rms
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
ms
Units
Notes
4
5
6
7
8
8
8
8
8
9
Input Characteristics For Enable / Disable Function (Pad 8)
Parameter
Enable Voltage (High) or open circuit
Disable Voltage (Low) Output Tri-stated
(Vih)
(Vil)
Minimum
70% Vcc
-
Nominal
-
-
Maximum
-
30% Vcc
Units
Vdc
Vdc
Notes
10
Input Characteristics For Voltage Control (Pad10)
Parameter
Control Voltage Range (Vcc = 3.3V)
Frequency Tuning
Linearity
Input Impedance
Modulation Bandwidth (3dB)
Slope
(Vc)
Minimum
0.3
±10
±5
100K
10
Nominal
1.65
-
-
-
-
Positive
Maximum
3.0
-
-
-
-
Units
Vdc
ppm
%
Ohm
KHz
Notes
11
LVCMOS Output Characteristics
LOAD
Voltage
(High)
(Low)
Current
(High)
(Low)
Duty Cycle at 50% of Vcc
Rise / Fall Time 10% to 90%
Parameter
(Voh)
(Vol)
(Ioh)
(Iol)
Minimum
-
90%Vcc
-
-4
-
45
-
Nominal
15
-
-
-
-
50
-
Maximum
-
-
10%Vcc
-
4
55
8
Units
pF
Vdc
Vdc
mA
mA
%
ns
Notes
12
Clipped Sinewave Output Characteristics
Load
Output Load Resistance
Output Load Capacitance
Output Voltage (< 40 MHz)
Output Voltage (> 40 MHz)
Notes:
1.
Frequency stability vs. change in temperature. [±(Fmax – Fmin)/2.Fo].
2.
Inclusive of frequency stability, supply voltage change (±1%), aging, for 24 hours.
3.
Over twenty years
4. TCXO: Initial calibration @ 25°C. Specifications at time of shipment after 48 hours of operation.
5. Frequency change after reciprocal temperature ramped over the operating range. Frequency measured before and after at 25°C.
6 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.
7. For best in application performance, careful selection of an external power source is critical. Select an external regulator that meets or exceeds to
following specifications regarding voltage regulation tolerance, initial accuracy, temperature coefficient, voltage noise, and low voltage noise density
Factory Test Conditions:
Initial Accuracy ±2mv, Noise (0.1Hz to 10 KHz) 15uV p-p, Voltage Noise Density = 50nV/srt Hz, Temperature Coefficient
< 5ppmºC.
8. Phase noise measurements Fo = 20 MHz, other frequencies may vary by 20log F/20MHz.
9. Typical start up time for the frequency range of 12.8 MHz to 25 MHz <330 us.
10. 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 < 1mA).
11. Additional pull ranges are available; please contact the factory for additional information.
12.
Attention: To achieve optimal frequency stability, and in some cases to meet the specification stated on this data sheet, it is required that the circuit connected to this TCXO output
must have the equivalent input capacitance that is specified by the nominal load capacitance. Deviations from the nominal load capacitance will have a graduated effect on the stability
of approximately 20 ppb per pF load difference..
13. Output is AC coupled.
Parameter
Minimum
-
-
1.00
0.80
Nominal
10K
10
-
-
Maximum
-
-
-
-
Ohms
pF
V pk-pk
V pk-pk
Units
Notes
13
12
Data Sheet: Tx176 Rev: 16
Date: 01/09/14
© Copyright 2014 The Connor-Winfield Corp. All Rights Reserved
Specifications subject to change without notice
Absolute Maximum Ratings
Storage Temperature
Supply Voltage (Vcc)
Input Voltage
Parameter
Minimum
-55
-0.5
-0.5
Nominal
-
-
-
85 °C
6.0 Vdc
Vcc+0.5 Vdc
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
Maximum
Package Characteristics
Package
Hermetically sealed surface mount package with metal cover.
Environmental Characteristics
Vibration:
Shock:
Soldering:
Vibration per Mil Std 883E Method 2007.3 Test Condition A
Mechanical Shock per Mil Std 883E Method 2002.4 Test Condition B.
SMD product suitable for Convection Reflow soldering. Peak
temperature 260°C. Maximum time above 220°C, 60 seconds.
Design Recommendations
Vcc, should have
a large copper
area for reduced
inductance.
Connect a 0.01uF
bypass capacitor
<0.1”(2.54mm)
from the pad.
Suggested Pad Layout
Vcc
50 Ohm trace
<1”by design
Buffer
Ground
Top View
Ground
0.037
(0.94mm)
0.215
(5.46mm)
0.295
(7.49mm)
0.051
(1.28mm)
0.030
(0.76mm)
0.051
(1.28mm)
8
9
6
5
0.010”(0.254mm)
Recommended
clearance
inductance
for internal
copper flood.
Ground,
should have
a large copper
area for reduced
inductance.
10
1
3
4
Top View
1
Keep Out Area
Top View
0.029
(0.74mm)
0.069
(1.75mm)
Dimensional Tolerance:
±.005 (.127mm)
±.02 (.508mm)
OSC
TOP LAYER
GROUND LAYER
50 Ohm Trace
Without Output
Vias
Buffer
Solder Profile
Temperature
260°C
220°C
180°C
150°C
120°C
260°C
.......
Typical Phase Noise
BOTTOM LAYER
Model T504-019.44MHz
0
10 s
Up to 120 s
60 to 90 s
Typical
Typical
Meets IPC/JEDEC J-STD-020C
LVCMOS Output Waveform
Tape and Reel Specifications
Clipped Sinewave Output Waveform
1
0
200 mV/Div
Bulletin
Page
Revision
Date
© Copyright 2014 The Connor-Winfield Corp. All Rights Reserved
Specifications subject to change without notice
Tx176
4 of 4
16
08 Jan 2014
