I747 Series
Product Features:
Applications:
Clipped Sinewave
Analog Compensation
Available ±0.5ppm Stability
RoHS Compliant / Pb-free
Frequency
GPS
Smart Meters
Wireless Base Stations
Sonet / SDH
T1/E1, T3/E3
10MHz to 52MHz
Frequency Tolerance @ 25° C ±2.0ppm after second reflow
Frequency Stability
Vs Temperature
Vs Supply Voltage (± 5%)
Vs Load (10%)
Output Level
Clipped Sinewave
See Part Numbering Guide
±0.2ppm Maximum
±0.2ppm Maximum
0.8 V p-p Minimum
Output Load
Clipped Sinewave
10K Ohms / 10 pF
Start Time (90% of Vp-p)
3.0mSec Maximum
Aging
±1 ppm / Year Maximum.
Supply Voltage
See Part Numbering Guide, tolerance ± 5%
Current
≤32MHz
>32mHz
Voltage Control
1.5mA Maximum
2.0mA Maximum
1.5 Vdc ± 1.0 Vdc, ± 5.0 ppm Minimum
(Only for I747)
Operating Temperature Range See Part Numbering Guide
Storage Temperature Range
-40°C to +85°C
Pin 1
Phase Noise (typical)
-87 dBc/Hz @ 10 Hz
-112 dBc/Hz @ 100 Hz
-135 dBc/Hz @ 1KHz
-145 dBc/Hz @ 10 KHz
Pin 2
Pin 3
Pin 4
Part Number Guide
Package
I547 (Clipped Sinewave TCXO)
I747 (Clipped Sinewave TCVCXO)
Operating
Temperature
Suggested Land Pattern
Pin Connections
I547 Ground or No Connect
I747 Control Voltage
Ground
Output
Supply Voltage
Dimension Units: mm
Sample Part Number: I547-1Q3-20.000 MHz
Frequency Stability vs Temperature Supply Voltage
7 = 0°C to +50°C
*,**Y = ±0.5ppm
3 = 3.3V
1 = 0°C to +70°C
*N = ±1.0ppm
7 = 3.0V
3 = -20°C to +70°C
*O = ±1.5ppm
8 = 2.8V
5 = -30°C to +85°C
*P = ±2.0ppm
2 = 2.7V
2 = -40°C to +85°C
Q = ±2.5 ppm
1 = 1.8V
Frequency
-20.000 MHz
R = ±3.0 ppm
J = ±5.0 ppm
** Not available for all frequencies or temperature ranges.
** Referenced to the midpoint between minimum and maximum frequency value over operating Temperature Range.
NOTE: It is recommended that a 0.01µF bypass capacitor be connected between Vdd (Pin 4) and Ground (Pin 2) to minimize
power supply noise.
It is recommended that an external 0.01µF AC-coupling capacitor be connected to output (Pin 3) of the device.
For the TXCO (I547), it is recommended that Pin 1 should not be left floating but be connected to Ground.
Revised M: 12/13/17
Page 2 of 6
www.ilsiamerica.com
I747 Series
Pb Free Solder Reflow Profile:
Ts max to TL (Ramp-up Rate)
Preheat
Temperature min (Ts min)
Temperature typ (Ts typ)
Temperature max (Ts max)
Time (Ts)
Ramp-up Rate (TL to Tp)
Time Maintained Above
Temperature (TL)
Time (TL)
Peak Temperature (Tp)
Time within 5ºC to Peak
Temperature (Tp)
Ramp-down Rate
Tune 25ºC to Peak Temperature
3ºC / second max
150ºC
175ºC
200ºC
60 to180 seconds
3ºC / second max
217ºC
60 to 150 seconds
260ºC max for 10
seconds
20 to 40 seconds
6ºC / second max
8 minutes max
*Units are backward compatible with 240C reflow processes
Package Information:
MSL = 1 (package does not contain plastic, storage life is unlimited under normal room conditions).
Termination = e4 (Au over Ni over W base metallization).
Tape and Reel Information:
PITCH
TAPE WIDTH
REEL DIA
QTY PER REEL
Revised M: 12/13/17
Page 3 of 6
4.00
8.00
180
3,000
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I547-2P3-32.000 MHZ 价格&库存
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