.TF |

Transfer Function Analysis

The TF line defines the small-signal output and input for the dc small-signal analysis.

.TF <out_var> <in_src> |

out_var

Is the small-signal output variable.

in_src

Is the small-signal input source.

The simulator computes the dc small-signal value of the transfer function (output/input), input resistance, and output resistance. For the first example, the simulator would compute the ratio of V(5, 3) to VIN, the small-signal input resistance at VIN, and the small-signal output resistance measured across nodes 5 and 3.

```
.TF V(5, 3) VIN
.TF I(VLOAD) VIN
```