AWG G3 PAD FOR PS3 Especificações descarregar pdf (Página 214)

7 Analog Modules Waveform Digitizers

214 System Reference, January 2001

Input Amplifier

The input amplifier determines the input voltage range.

Any input voltage ranges are normalized to a certain

voltage range at the output of the input amplifier.

If the signal to be measured includes a DC component and

you want to measure only AC components, you can elimi-

nate the DC component by setting the DC offset voltage.

The input amplifier eliminates the DC component

according to your setting for the DC offset voltage. This

maximizes the measurement dynamic range for AC

components.

Filter

The digitizer has some kinds of low pass filters for anti-

aliasing according to the band of measured signals. The

filter removes harmonics from the input signal.

Analog-to-Digital Converter

The analog-to-digital converter samples the analog signal

according to the conversion clock provided by the timing

generator and converts the level of the analog signal to

digital data. The digital data is stored in the waveform

memory.

Timing Generator

The master clock and trigger signal are input to the timing

generator. After receiving the trigger signal, the timing

generator starts to generate the conversion clock by

dividing the master clock and feeds the conversion clock

to the ADC. The timing generator also sends the start

signal to the sequencer. The timing generator stops gener-

ating the conversion clock when the sequencer is halted.

The timing generator contains a delay counter and delay

vernier. By using them, the timing generator controls the

delay time from when the trigger signal arrives to when

waveform measurement starts.

1 2 ... 209 210 211 212 213 214 215 216 217 218 219 ... 284 285

Sem comentários

AWG G3 PAD FOR PS3 Especificações Página 214