| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Nominal Frequency (F0) | 1.544MHz to 125.000MHz, 125.00093MHz, 125.00312MHz, 125.009MHz, 125.00937MHz, 125.010MHz, 126.000MHz, 127.000MHz, 128.000MHz, 131.000MHz, 131.072MHz, 131.250MHz, 132.000MHz, 133.000MHz, 133.330MHz, 133.333MHz, 133.3333MHz, 135.000MHz, 136.000MHz, 137.472MHz, 140.000MHz, 142.000MHz, 142.850MHz, 143.000MHz, 145.000MHz, 148.351MHz, 148.3516MHz, 148.500MHz, 155.000MHz, 155.520MHz, 156.250MHz, 159.375MHz, 159.380MHz, 161.1328MHz, 162.500MHz, 166.000MHz, 175.000MHz, 187.500MHz, or 200.000MHz |
The specified reference or "center" frequency of the oscillator. Typically specified in megahertz (MHz)or kilohertz (kHz). |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Frequency Tolerance/Stability | Inclusive of all conditions: Calibration Tolerance at 25°C, Frequency Stability over the Operating Temperature Range, Supply Voltage Change, Output Load Change, First Year Aging @25°C, Shock, and Vibration ±100ppm
±50ppm
±25ppm
±20ppm Maximum |
This "inclusive" specification is the amount of frequency deviationfrom the center frequency associated with a set of operatingconditions. These conditions include: Operating Temperature Range,Supply Voltage, and Output Load. This parameter is specified with amaximum and minimum frequency deviation, expressed in percent (%)or parts per million (ppm). |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Operating Temperature Range (OTR) | 0°C to +70°C (Standard)
-40°C to +85°C (Optional) |
The maximum and minimum temperatures that the oscillator device can be exposed to during oscillation. Over thistemperature range, all of the specified device operatingparameters are guaranteed. |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Supply Voltage (VDD) | 2.5VDC ±5% |
The DC input voltage necessary for oscillator operation, specified involts. |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Input Current (IDD) | 3mA Maximum from 1.544MHz to 9.999999MHz
4mA Maximum from 10.000MHz to 19.999999MHz
5mA Maximum from 20.000MHz to 39.999999MHz
6mA Maximum from 40.000Hz to 50.000MHz
10mA Maximum from 50.000001MHz to 69.999999MHz
15mA Maximum from 70.000MHz to 110.000MHz
35mA Maximum from 110.000001MHz to 125.000MHz
45mA Maximum from 125.000001MHz to 155.000MHz
58mA Maximum from 155.000001MHz to 200.000MHz |
The amount of current consumption by an oscillator from the powersupply, typically specified in milliamps (mA). |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Output Voltage Logic High (VOH) | 90% of VDD Minimum (IOH = -8mA) |
Defined as the Output Voltage Logic High or "Logic 1" (Figure 1 in oscillator glossary of terms). |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Output Voltage Logic Low (VOL) | 10% of VDD Maximum (IOH = +8mA) |
Defined as the Output Voltage Logic Low or "Logic 0" (Figure 1 in oscillator glossary of terms). |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Duty Cycle (SYM) | Measured at 50% of waveform.
50 ±10(%)
50 ±5(%) (Measured at 25°C, at VDD=2.5VDC over Nominal Frequency range of 125.000001MHz to 200.000MHz) |
The measure of output waveform uniformity. This term, also referredto as symmetry, is a measurement of the time that the outputwaveform is in a logic high state, expressed as a percentage (%).This parameter is measured at a specified voltage threshold or at apercentage of the output waveform amplitude (Figure 1 in the oscillator glossary of terms). |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Rise Time/Fall Time (TR/TF) | Measured over 20% to 80% of waveform.
6nSec Maximum from 1.544MHz to 24.000MHz
4nSec Maximum from 24.000001MHz to 50.000MHz
3nSec Maximum from 50.000001MHz to 110.000MHz
2nSec Maximum from 110.000001MHz to 200.000MHz |
The Rise Time, measured in nanoseconds (nSec), is defined as thetransition time from an output logic low to an output logic high.Conversely, the Fall Time, also measured in nanoseconds (nSec), isdefined as the transition time from an output logic high to an outputlogic low. This transition time is measured at specified voltagethresholds or at specified percentages of the output waveformamplitude (Figure 1 in the oscillator glossary of terms). |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Load Drive Capability (CLOAD) | 15pF HCMOS Load Maximum |
The maximum load the oscillator can drive specified in terms of thenumber of gates or the type of load circuit (Figures 2, 3 and 4 in oscillator glossary of terms). |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Aging (at 25°C) | ±5ppm/year Maximum |
The systematic change in frequency with time due to internal changes in the crystal. Aging is often expressed as a maximum value in parts per million per year (ppm/yr). The rate of aging is typically greatest during the first 30 to 60 days after which time the aging rate decreases. The following factors effect crystal aging: adsorption and desorption of contamination on the surfaces of the quartz, stress relief of the mounting and bonding structures, material outgassing, and seal integrity. |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Storage Temperature Range (STR) | -55°C to +125°C |
The minimum and maximum temperatures that the device can be stored or exposed to when in a non-oscillation state. After exposing or storing the device at the minimum or maximum temperatures for a length of time, all of the operating specifications are guaranteed over the specified Operating Temperature Range. |
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| Output Control Function | Tri-State Enable High |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
| Tri-State Input Voltage | VIH of 90% of VDD or Greater or No Connection to enable output. VIL of 10% of VDD or less to disable output |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
| RMS Phase Jitter | 1pSec Maximum (12kHz to 20MHz offset frequency) |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> Start Up Time (TS) | 10mSec Maximum |
The specified time from oscillator power-up to the time the oscillatorreaches steady state oscillation. |
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| Standby Current | 10µA Maximum (Disabled Output, High Impedance) |
| 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
EC27 Data Sheet
