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 15pF ±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 Compatability Drive Capability VoL: ≤10% Vs VoH: ≥90% Vs
HCMOS 15pF
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 compensation circuit are still active (current consumption ≈ 1mA)
Noise Parameters
A...