This IP is a Low Speed Crystal Oscillator (LSXO). It was taped out on the CI2404 Efabless Chipalooza tapeout. The specifications below are target specifications. Check back for characterized numbers once the silicon is characterized.
| Pin name | Use | Domain | Notes |
|---|---|---|---|
| avdd | analog power | 3.3V | |
| dvdd | digital power | 1.8V | |
| avss | analog ground | ||
| dvss | digital ground | ||
| ibias | bandgap-referenced current input | ||
| ena | enable | 1.8V domain | |
| standby | standby biasing | 1.8V domain | |
| xin | crystal input | 3.3V domain | |
| xout | crystal output | 3.3V domain | |
| dout | clock output | 1.8V domain |
| Parameter | Min | Typical | Max | Unit | Notes |
|---|---|---|---|---|---|
| Supply Voltage | 2.7 | 3.3 | 5.5 | V | Vsup |
| Operating Temperature | -40 | 25 | 85 | °C | |
| Power Consumption (enabled) | 0.8 | 1 | 1.2 | µA | Measured at 3.3V and 25°C |
| Power Consumption (disabled) | 0.5 | 1 | 2 | nA | Measured at 3.3V and 25°C |
| Duty Cycle | 45 | 50 | 55 | % | |
| Start-up Time (power-up) | 1 | 2 | 4 | ms | |
| Start-up Time (enable) | 1 | 1 | 2 | ms | |
| Input Load Capacitance | 2 | pF | Approx. pad and package capacitance | ||
| Output Load Capacitance | 200 | fF | |||
| Frequency Stability | -200 | 0 | 0 | ppm | Over operating temperature range |
| Frequency Accuracy | -20 | 0 | 20 | ppm | At 25°C |
| Output Signal Level Low | 0 | 0.1 | Vpp | CMOS | |
| Output Signal Level High | Vsup - 0.1 | Vsup | Vpp | CMOS | |
| Output Rise/Fall Time | 4 | 5 | 6 | ns | 10-90% of V_max at load |
EF_LSXO
Vendor
Efabless
130nm
Skywater
External Oscillator
Free
Open Source
EF Certified
Defined