AWG G3 PAD FOR PS3 Dokumentacja Pobierz pdf (Strona 197)

Waveform Generators 7 Analog Modules

System Reference, January 2001

197

one AWG instrument shown as the upper block in the

above figure. For one AWG instrument, the front-end

module has four signal output pins, one trigger input pin,

and one marker output pin.

The front-end module makes the following connections.

• Output routes

• DC routes

• Loop back routes

Output Routes

To output a single-ended signal or a pair of differential

signals, the front-end module makes the route between the

desired pogo pins and the AWG instrument outputs.

To output a single-ended signal, A+ or B+ can be used for

channel 1. For channel 2, C+ or D+ can be used. In the

following figure, the routes to output a single-ended signal

are shown with bold lines.

Figure86 Output Routes (Single-ended)

A+

A-

Pogo Pin

Testhead

Analog Support Rack

Front-end Module

AWG Instrument

Sequencer/

Waveform

memory

DAC

B+

B-

Non-

inverse

Inverse

Clock

Oscillator

(Output Amp/

DC offset/

Attenuator/

Filter)

Analog Output

Circuit

uhfawgblock2

10 MHz Ref Clock

AGND

DGND

STATUS1

(Marker)

SYNC CLK

(Trigger)

C+

C-