IT5300
SMD Temperature Compensated
Crystal Oscillators
Product Description
The IT5300 employs an analogue IC
for the oscillator and temperature
compensation giving excellent
temperature stability performance
for low cost.
Features
• Standard temperature stability choices are +/-1ppm,
+/-1.5ppm and +/-2.5ppm, over wide temperature
ranges.
• Clipped sinewave frequency output from
12MHz to 26MHz.
• Frequency slope and perturbation specifications
can be customized to the application requirement.
• Internal power regulation. Unit can operate on
any supply voltage between 2.7 and 5.5 Volts.
• The unit consumes only 1.2mA typically.
FREQUENCY CHARACTERISTICS
Parameter
Test Condition
Min. Max. Unit
Frequency range
Frequency range available
12.0
26.0
MHz
Frequency calibration
Frequency at 23 deg. C +/-2 deg. C. sixty minutes after reflow
2.0
+/-ppm
Frequency stability over temperature
Referenced to frequency reading at 25 deg C. Temperature varied atmax of 2 deg C per minute (Note 2)
2.5
+/-ppm
Temperature range
The operating temperature range over which the frequency stability is measured (Note 3)
Static temperature hysteresis
Frequency change after reciprocal temperature ramped over the operating range.
-20.0 75.0
Degrees C
0.6
+/-ppm
Frequency measured before and after at 25 deg C.
Supply voltage stability
Supply voltage varied +/-5% at 25 deg C. (Note 1)
0.1
+/-ppm
Load sensitivity
+/-10% load change
0.2
+/-ppm
Long term stability
Frequency drift over 1 year (Note 1)
0.5
1.0
+/-ppm
Supply voltage
Nominal supply voltage range (Internally regulated)
2.7
Current
At Max. supply voltage
POWER SUPPLY
5.5
V
1.5
mA
OSCILLATOR OUTPUT
Output waveform
Clipped sinewave
Output voltage level
At min. supply voltage
0.8
1.8
V
Output load resistance
Operating range
9.0
11.0
KOhm
Output load capacitance
Operating range
9.0
11.0
pF
SSB PHASE NOISE
Typical
Quiescent measurement at room temperature. Phase noise dependent on oscillator frequency.
SSB Phase noise density
1Hz offset
-55 dBc/Hz
SSB Phase noise density
10Hz offset
-85 dBc/Hz
SSB Phase noise density
100Hz offset
-110 dBc/Hz
SSB Phase noise density
1KHz offset
-125 dBc/Hz
SSB Phase noise density
10KHz offset
-140 dBc/Hz
SPECIFICATION NOTES
Note 1
The Max. value is the specification. A Min. value, if present, indicates the tightest specification available.
Note 2
A max. frequency stability over the temperature is required to be specified. For this model series, values between to
+/-1ppm and +/-10ppm are available. Standard options are +/-1ppm, +/-1.5ppm, +/-2ppm and +/-2.5ppm.
Note 3
The operating temperature range needs to be specified. The extremes for this model are -40 and +85 deg C.
If either or both ends of the operating temperature range are at these extremes, then the frequency stability
options are limited to greater than +/-
Note 4
PG 37
The unit will operate on any voltage between Min. and Max. values.
INDEX
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© 2001 Rakon Limited
IT5300
5.0±0.2 [0.197±0.01]
1.7 [0.067]
3
4
1.1 [0.043]
3.2±0.2 [0.126±0.08]
2.3 [0.091]
1
2
TOP VIEW
3.90 [0.154]
TOP VIEW
RECOMMENDED PAD LAYOUT
1.7 [0.067]MAX
END VIEW
SIDE VIEW
1
2
3
4
2
1
1.4 [0.055]
0.8 [0.031]
PIN CONNECTIONS
1.10 [0.043]
2.6 [0.102]
2.2 [0.087]
N/C
COMMON AND CASE
OUTPUT
+Vcc
3
4
3.7 [0.146]
BOTTOM VIEW
FILENAME: CAT187
TITLE: IT5300 MODEL
RELATED DRAWINGS: TAPE & REEL (CAT127)
SINEWAVE TEST CIRCUIT (CAT007)
REVISION: A
DATE:
10 NOV 00
SCALE:
5:1
Millimetres [inch]
PG 38
INDEX
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Tolerances:
XX
⫽⫾0.5
X.X
⫽⫾0.10
X.XX
⫽⫾0.05
X.XXX ⫽⫾0.05
0
X
⫽⫾1.0 ⬚
Hole
Link to web page
⫽⫾0.10
PRECISION QUARTZ PRODUCTS
Contact
© 2001 Rakon Limited