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| ====== Typical OCEAN variables used in Front-End designing ====== | ====== Typical OCEAN variables used in Front-End designing ====== | ||
| - | e.g. ENC, ToT | + | \\ |
| + | __**Delta-like input current spike**__ | ||
| + | Use an **ipulse** current source with a trapezoidal shape | ||
| + | Let ''w'' be rise time, pulse width and fall time of the current pulse (e.g. 1ns), then set i2 to | ||
| + | <code> | ||
| + | Qin*1.6e-19/(2*w) | ||
| + | </code> | ||
| - | __**Equivalent Noise Charge (ENC)**__ | + | with ''Qin'' expressed as the **number of electrons**. |
| + | |||
| + | |||
| + | \\ | ||
| + | __**Equivalent Noise Charge (ENC)**__ | ||
| + | \\ | ||
| __**Time over threshold (ToT)**__ | __**Time over threshold (ToT)**__ | ||