AWG G3 PAD FOR PS3 Dokumentacja Pobierz pdf (Strona 199)

Waveform Generators 7 Analog Modules

System Reference, January 2001

199

DC Routes

The front-end module can make the route between a pogo

pin (including the marker pin) and the trigger input pin.

The trigger input pin is the SYNC CLK pin for channel 1 or

the SYNC DATA pin for channel 2. This enables DC

measurement by using a Pin PMU on a digital channel

connected with the trigger input pin. Hence, if you wire a

digital channel with the trigger input pin on the DUT

board, you can perform DC measurement at the DUT pin

connected to AWG by using a Pin PMU. The following

figure shows the possible routes between the pogo pins

and the trigger input pin, which are represented with bold

lines. When the DC route is made, the AWG instrument is

disconnected from any pogo pins.

Figure88 DC Routes

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

uhfawgblock4

10 MHz Ref Clock

AGND

DGND

STATUS1

(Marker)

SYNC CLK

(Trigger)

C+

C-