E2747
E2747 is TCXO manufactured by IQD.
ISSUE 7; April 2016
Description Semtech approved TCXO for Stratum 3 applications.
Frequency Parameters
Frequency
12.8MHz
Frequency Stability
±0.28ppm
Holdover Stability [±(Fmax-Fmin)/2Fo]:
Temperature,
- 20 to 70°C: <±0.28ppm Temperature,
- 20 to 70°C, inclusive of Supply Voltage, 3.3V ±5% and Ageing, 24 hours: <±0.32ppm
Free-Run Accuracy, incl.
Calibration @25°C, Temperature
- 20 to 70°C, Supply Voltage
3.3V ±5%, Load 15p F ±5%, Reflow Soldering and Ageing 20 years: <±4.6ppm ref to Fo
Electrical Parameters Supply Voltage
3.3V ±5%
Operating Temperature Ranges -20 to 70°C
Output Details
Output patability Drive Capability Vo L: ≤10% Vs Vo H: ≥90% Vs
HCMOS 15p F
Output Control
Tri-State Operation: Logic ‘1’ (≥60%VS) to pad 8 enables output Logic ‘0’ (≤20%VS) to pad 8 disables output In Tri-state mode, the output stage is disabled but the oscillator and pensation circuit are still active (current consumption ≈ 1m A)
Noise...
