5x7mm
Precision TCXO
In Stock at Digi-Key
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
The Connor-Winfield’s D75A is a 5x7mm
Surface Mount Temperature Compensated
Crystal Controlled Oscillator (TCXO) with
a Tri-State LVCMOS output. Through the
use of Analog Temperature Compensation,
the D75A is capable of holding sub 1-ppm
stabilities over the 0 to 70°C temperature
range. The D75A meets STRATUM 3
requirements.
Description:
Features:
D7
5
12 A 11
.8
4
MH 4
Z
Model: D75A
Parameter
Storage Temperature
Supply Voltage (Vcc)
Input Voltage
Absolute Maximum Ratings
Minimum
-55
-0.5
-0.5
3.3 Vdc Operation
LVCMOS Output
Frequency Stability: ± 0.28 ppm
Temperature Range: 0 to 70°C
Low Jitter <1ps RMS
Tri-State Enable/Disable Function
5x7mm Surface Mount Package
Tape and Reel Packaging
RoHS Compliant / Pb Free
Nominal
-
-
-
Maximum
85
6.0
Vcc+0.5
Units
°C
Vdc
Vdc
Notes
Parameter
Nominal Frequency (Fo)
Frequency Calibration @ 25 °C
Frequency Stability vs. Temperature
Holdover Stability (Over 24 Hours)
Frequency vs. Load Stability
Frequency vs. Voltage Stability
Static Temperature Hysteresis
Total Frequency Tolerance:
Operating Temperature Range:
Supply Voltage (Vcc)
Supply Current (Icc)
Period Jitter
Integrated Phase Jitter
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
Operating Specifications
Nominal
Maximum
Units
MHz
ppm
ppm
ppm
ppm
ppm
ppm
ppm
°C
Vdc
mA
ps rms
ps rms
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
ms
Notes
1
2
3
±5%
±5%
Absolute, 4
5
±5%
-
10.0, 12.8, 19.2, or 20.0
-
-1.0
-
1.0
-0.28
-
0.28
-0.32
-
0.32
-0.20
-
0.20
-0.20
-
0.20
-
-
0.4
-4.6
-
4.6
0
-
70
3.135
3.3
3.465
-
-
6
-
3
5
-
0.5
1.0
-
-80
-
-
-110
-
-
-135
-
-
-150
-
-
-150
-
-
-
5
6
Enable / Disable Input Characteristics (Pad 8)
Parameter
Enable Voltage (High)
Disable Voltage (Low)
Minimum
70%Vcc
-
Nominal
-
Maximum
-
30%Vcc
Units
Vdc
Vdc
Notes
7
7
LVCMOS Output Characteristics
Parameter
Load
Voltage (High) (Voh)
(Low)
(Vol)
Duty Cycle at 50% of Vcc
Rise / Fall Time 10% to 90%
Package
Vibration:
Shock:
Soldering Process;
Minimum
-
90%Vcc
-
45
-
Nominal
15
-
-
50
-
Maximum
-
-
10%Vcc
55
8
Units
pF
Vdc
Vdc
%
ns
Notes
8
Hermetically sealed crystal mounted on a ceramic package
Vibration per Mil Std 883E Method 2007.3 Test Condition A
Mechanical Shock per Mil Std 883E Method 2002.4 Test Condition B.
RoHS compliant lead free. See soldering profile on page 2.
Package Characteristics
Environmental Characteristics
Ordering Information
D75A-010.0M*, D75A-012.8M*, D75A-019.2M* or D75A-020.0M*
* For the tape and reel option, add -T to the end of the part number. Example: D75A-010.0M-T
Notes:
1. Initial calibration @ 25°C. Specifications at time of shipment after 48 hours of operation.
2. Frequency stability vs. change in temperature. [±(Fmax - Fmin)/2.Fo].
3. Inclusive of frequency stability, supply voltage change (±1%), load change, aging, for 24 hours.
4. Frequency change after reciprocal temperature ramped over the operating range. Frequency measured before and after at 25°C.
5. Inclusive of calibration @ 25C, frequency vs. change in temperature, change in supply voltage (±5%), load change (±5%), reflow soldering process and 20 years aging,
referenced to Fo
6. BW = 12 KHz to 20 MHz.
7. 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).
8. For best performance it is recommended that the circuit connected to this output should have an equivalent input capacitance of 15pF.
Specifications subject to change without notice. All dimensions in inches. © Copyright 2011 The Connor-Winfield Corporation
Bulletin
Page
Revision
Date
Tx236
1 of 2
01
03 Nov 2011
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
Package Layout
0.276 ±0.006
(7.0mm)
0.079 Max.
(2.0mm)
Suggested Pad Layout
0.295
(7.49mm)
0.030
(0.76mm)
Pad Connections
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
Do Not Connect
Do Not Connect
Do Not Connect
Ground
Output
Do Not Connect
Do Not Connect
Tri-State Enable / Disable
Supply Voltage Vcc
N/C
0.051
(1.28mm)
Keep Out Area
D75A 1144
12.8 MHZ
Pin 1
0.197
±0.006
(5.0mm)
8
0.037
(0.94mm)
7
6
5
9
Top View
10
1
2
3
0.025(6 Places)
(0.635mm)
1
0.030
(0.762mm)
(4 Places)
2
Temperature
260°C
180°C
150°C
260°C
220°C
120°C
0
10 s
Up to 120 s
60 to 90 s
Typical
Typical
3
4
10
Bottom
View
Meets IPC/JEDEC J-STD-020C
0.040
(1.02mm)
(6 Places)
0.215
(5.46mm)
4
0.051
(1.28mm)
0.100
(2.54mm)
9
8
0.038
(0.965mm)
(4 Places)
5
7
6
0.100
(2.54mm)
Dimensional Tolerance:
±.005 (.127mm)
±.02 (.508mm)
* Do not route any traces in the keep out area. It is
recommended the next layer under the keep out
area is to be ground plane.
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.
Output Waveform
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.
Vcc
50 Ohm trace
<1”by design
Buffer
10
1
3
4
Ground
Top View
Ground
Top View
Test Circuit
50 Ohm Trace
Without Output
Vias
Buffer
N/C
10
DNC
DNC DNC
OSC
TOP LAYER
GROUND LAYER
1
2
3
4
Ground
.......
BOTTOM LAYER
Vcc
Supply
Voltage
9
8
7
6
5
Output
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.
15 pF
0.1 uF
Bypass
10 nF
Bypass
Enable/ DNC DNC
Disable
DNC = Do Not Connect
Tape and Reel Dimensions
PIN 1
Solder Profile
Temperature
260°C
220°C
180°C
150°C
260°C
(17.5mm)
.69
(216mm DIA)
8.46 DIA
(2.0mm)
.08
(2.0mm)
.21
(5.4mm)
.08
(7.9mm)
.31
120°C
0
(250mm DIA)
9.84 DIA
(4.0mm)
(2.0mm)
.157
.08
(80mm)
3.15
(8.0mm)
.315
Direction
Of
Feed
(Customer)
10 s
Up to 120 s
60 to 90 s
Typical
Typical
Meets IPC/JEDEC J-STD-020C
(1.5mm DIA)
.06 DIA
(25mm DIA)
.295 (7.5mm)
1.00 DIA
Bulletin
Page
.07 (1.75mm)
.83 (16.0mm)
MEETS EIA-481A and EIAJ-1009B
2,000 PCS/REEL
Revision
Date
Tx236
2 of 2
01
03 Nov 2011
Specifications subject to change without notice. All dimensions in inches. © Copyright 2011 The Connor-Winfield Corporation
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