Anritsu MP1763C Uživatelský manuál stáhnout pdf (Strana 65)

5-3

5.2 Pattern Synchronized Output Period

(set frequency)

5.2 Pattern Synchronized Output Period

5.2.1 Pseudorandom pattern

Period = × (2

-1) × 128

N=7, 9, 11, 15, 20, 23, 31

(Where pulse width = × 64, plus pulse)

5.2.2 Programmable pattern

(1) Data pattern, alternate pattern

(a) Data length = 65536 or less

Period = × (least common multiple between 128 and data length)

(Example 1) Data length = 8

Period = × 128

(Example 2) Data length = 10

Period = × 640

(b) Data length > 65536

Period = × (data length)

(2) Zero sub pattern

Period = × 2

N=7, 9, 11, 15

(3) Pulse width

For any of the programmable patterns above, the pulse width = × 64. The output signal polarity is

plus pulse.

Note: For the alternate pattern, the synchronization output is output in basic data length units. As a result, when the data

output is monitored on a sampling oscilloscope, patterns A and B are shown overlapping.

To prevent patterns A and B from overlapping, connect A/B TIMING OUTPUT on the rear of the instrument to the

trigger of the oscilloscope through an ECL terminator.

(set frequency)

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 77 78

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Anritsu MP1763C Uživatelský manuál Strana 65