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参数资料
| 型号： | T702-019.44M |
| 厂商： | CONNOR WINFIELD CORP |
| 元件分类： | XO, clock |
| 英文描述： | TCXO, CLOCK, 19.44 MHz, LVCMOS OUTPUT |
| 封装： | ROHS COMPLIANT, MINIATURE; HERMETIC SEALED, SMD, 10 PIN |
| 文件页数： | 3/4页 |
| 文件大小： | 317K |
| 代理商： | T702-019.44M |
Operating Specifications
Table 6.0
Parameter
Minimum
Nominal
Maximum
Units Notes
TCXO Frequency Calibration @ 25°C
-1.00
-
1.00
ppm
1
Supply Voltage Variation. (Vcc±5%)
-0.05
-
0.05
ppm
Load Coefficient, ±5%
-0.05
-
0.05
ppm
Static Temperature Hysteresis
-0.4
-
0.4
ppm
2
Total Frequency Tolerance
-4.60
-
4.60
ppm
3
Supply Voltage (±5%)
(Vcc)
3.135
3.3
3.465
Vdc
4
Supply Current
(Icc)
-
6
10
mA
Period Jitter
-
3
5
ps rms
Integrated Phase Jitter (BW=12kHz to 20MHz)
-
0.3
1.0
ps rms
SSB Phase Noise at 10Hz offset
-
-90
-85
dBc/Hz
5
SSB Phase Noise at 100Hz offset
-
-120
-115
dBc/Hz
5
SSB Phase Noise at 1KHz offset
-
-140
-135
dBc/Hz
5
SSB Phase Noise at >10KHz offset
-
-150
-145
dBc/Hz
5
SSB Phase Noise at >100KHz offset
-
-152
-157
dBc/Hz
5
Start Up Time
-
1
ms
6
Input Characteristics For Enable / Disable Function (Pad 8)
Table 7.0
Parameter
Minimum
Nominal
Maximum
Units Notes
Enable Voltage (High) or open circuit
(Vih)
70% Vcc
-
Vdc
7
Disable Voltage (Low) Output Tri-stated
(Vil)
-
30% Vcc
Vdc
Input Characteristics For Voltage Control (Pad10)
Table 8.0
Parameter
Minimum
Nominal
Maximum
Units Notes
Control Voltage Range (Vcc = 3.3V)
(Vc)
0.3
1.65
3.0
Vdc
Frequency Tuning
±10
-
ppm
8
Linearity
±5
-
%
Input Impedance
100K
-
Ohm
Slope
Positive
LVCMOS Output Characteristics
Table 9.0
Parameter
Minimum
Nominal
Maximum
Units Notes
LOAD
-
15
-
pF
9
Voltage
(High)
(Voh)
90%Vcc
-
Vdc
(Low)
(Vol)
-
10%Vcc
Vdc
Current
(High)
(Ioh)
-4
-
mA
(Low)
(Iol)
-
4
mA
Duty Cycle at 50% of Vcc
45
50
55
%
Rise / Fall Time 10% to 90%
-
8
ns
Clipped Sinewave Output Characteristics
Table 10.0
Parameter
Minimum
Nominal
Maximum
Units Notes
Load
10
Output Load Resistance
-
10K
-
Ohms
Output Load Capacitance
-
0
-
pF
11
Output Voltage (< 40 MHz)
1.00
-
V pk-pk
Output Voltage (> 40 MHz)
0.80
-
V pk-pk
Data Sheet: Tx176
Rev: 10
Date: 01/07/10
Copyright 2010 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Note
1)
TCXO: Initial calibration @ 25°C. Specifications at time of shipment after 48 hours of operation.
2)
Frequency change after reciprocal temperature ramped over the operating range. Frequency measured before and after at 25°C.
3)
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.
4)
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
< 5ppmC.
5)
Phase noise measurements Fo = 20 MHz, other frequencies may vary by 20log F/20MHz.
6)
Typical start up time for the frequency range of 12.8 MHz to 25 MHz <330 us.
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 < 1mA).
8)
Additional pull ranges are available; please contact the factory for additional information.
9)
For best performance it is recommended that the device connected to this output should have an equivalent input capacitance of 15pF.
10) Output is AC coupled.
11) For best performance it is recommended that the device connected to this output should have an equivalent input capacitance of 10pF.
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