Bk-precision 4034 - Manual Manual do Utilizador descarregar pdf (Página 22)

Double Pulse

3.6.2 OUTPUT Menu

The Output menu enables the pulse high and low levels to be set. The levels are limited by four factors:

- The absolute limits are ±10 V.

- The high level must be greater than the low level.

- The pulse amplitude must be between 0.1 V and 10 V p-p, into 50 Ω.

- The levels cannot exceed the limits as set in the OUTPUT LIMITS menu.

Output Menu

F1: HILVL - Selects the pulse high level voltage.

F2: LOLVL - Selects the pulse low level voltage.

F3: PREDEF - Selects predefined pulse output levels. In addition to being able to set the levels to any

value within the limits, the user may also select one of four pre-defined levels:

CMOS: Low level (LOLVL) = 0 V, High level (HILVL) = 5 V

TTL: Low level (LOLVL) = 0.4 V, High level (HILVL) = 2.4 V

ECL: Low level (LOLVL) = -1.8 V, High level (HILVL) = -0.8 V

USER: User-defined levels, entered by using the USER menu (F5: HIPRED and

LOPRED) Press OUTPUT to exit USER menu.

Predefined Output Menu

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Bk-precision 4034 - Manual Manual do Utilizador Página 22