In order to saturate the power switch and reduce conduction losses, adequate direct base current IBl has to be provided for the lowest gain hFE at 100 0C (line scan phase). On the other hand, negative base current lB2 must be provided the transistor to turn off (retrace phase). Most of the dissipation, especially in the deflection application, occurs at switch-off so it is essential to determine the value of lB2 which minimizes power losses, fall time tf and, consequently, Tj. A new set of curves have been defined to give total power losses, ts and tf as a function of IBi at 64 KHz scanning frequencies for
| Parameters | Symbol | Min | Typ | Max | Unit | Note |
| | r reaUenCV | Fc=l/Tc | | 25.175 | | MHz | Note 7-3 |
| Clock | High Time | Tckh | 10 | | | ns | |
| | Low Time | Tckl | 10 | | | ns | |
| | Periodic = Line | Thp | | 31.778 | | S | Note 7-3 |
| Hsync | | | | 800 | 1024 | clock | Note 7-3 |
| | Pulse Width | Thpw | 2 | 96 | 200 | clock | |
| | Back Porch | Thbp | 2 | 49 | 64 | clock | |
| | | | 515 | 525 | 1024 | line | Note 7-3 |
| Vsync | Pulse Width | Tvpw | 1 | 2 | | line | |
| | Back Porch | Tvbp | 1 | 33 | 64 | line | |
| Data | Setup Time | Tds | 10 | | | ns | |
| | Hold Time | Tdh | 10 | | | ns | |
| | Periodic = Line | Tep | | 800 | 1024 | clock | |
| | Pulse Width (H) | Tepw | 2 | 640 | 800 | clock | |
| Horizontal Display Periodic | Thd | 640 | 640 | 640 | clock | |
| Hsync-CLK Phase Difference | The | 10 | | Tc-10 | ns | |
| Vsync-Hsync Phase Difference | Tvh | 1 | | Thp-l | clock | |
| | | | | | | |
