Agilent Technologies 54502A Manuale di Servizio Scaricare il pdf (Pagina 18)

Tagging

State Tagging: Counts the number of qualified states between each stored state.

Measurement can be shown relative to the previous state or relative to trigger.

Maximum count is 4.4 X (10 to the 12th power).

Time Tagging: Measures the time between stored states, relative to either the

previous state or the trigger. Maximum time between states is 48 hours.

With tagging on, the acquisition memory is halved; minimum time between states is

60 ns.

Symbols

Pattern Symbols: User can define a mnemonic for the specific bit pattern of a

label. When data display is SYMBOL, mnemonic is displayed where the bit

pattern occurs. Bit pattern can include 0s, 1s, and don’t cares.

Range Symbols: User can define a mnemonic covering a range of values. Bit

pattern for lower and upper limits must be defined as a pattern of 0s and 1s. When

data display is SYMBOL, values within the specified range are displayed as

mnemonic + offset from base of range.

Number of Pattern and Range Symbols: 200 total used for both analyzers.

Symbols can be down-loaded over RS-232-C or HP-IB.

Timing Analysis Transitional Timing Mode

Sample is stored in acquisition memory only when the data changes. A time tag

stored with each sample allows reconstruction of waveform display. Time covered

by a full memory acquisition varies with the number of pattern changes in the data.

Sample Period: 10 ns.

Maximum Time Covered By Data: 5000 seconds.

Minimum Time Covered by Data: 10.24 us.

Glitch Capture Mode

Data sample and glitch information stored every sample period.

Sample Period: 20 ns to 50 ms in a 1-2-5 sequence dependent on sec/div and delay

settings.

Memory Depth: 512 samples/channel.

Time Covered by Data: Sample period X 512.

Waveform Display

Sec/div: 10 ns to 100 s; 0.01% resolution.

Delay: -2500 s to 2500 s; presence of data dependent on the number of transitions

in data between trigger and trigger plus delay (transitional timing).

Accumulate: Waveform display is not erased between successive acquisitions.

HP 1650B/1651B General Information

Service Manual 1-7

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Agilent Technologies 54502A Manuale di Servizio Pagina 18