NF wf1966, Instruction Manual

Page: 33 / 198

WF1966
3-5
3.2 Input and output connectors
„
Waveform output (FUNCTION OUT)
±
42Vpeak
Maximum output voltage : 20 Vp-p/open, 10 Vp-p/50
Ω
load
Output impedance : 50
Ω
, unbalanced
Load impedance: More than 45
Ω
Output off status : Open when output off (can be modified for 50
Ω
at output off.
Consult company.)
Ground : Connected to signal ground (floated from the chassis)
Avoid shorting the output or applying an external signal. The unit can be damaged.
・
Output limiting
If the output voltage exceeds the following values, the output may be clipped depending on the high
level/low level settings or the relationship between the amplitude and DC offset setting, and the external
add and external AM settings.
10 V range: Approx. 10 Vp/open
10 V range: Approx. 5 Vp/50
Ω
load
1 V range: Approx. 1.0 Vp/open
1 V range: Approx. 0.5 Vp/50
Ω
load
If the internal circuit is overloaded by the output voltage, the Over lamp lights.
Although the operation is not a failure, the lamp indicates that the operation is not normal.
・ Output connection note
Since FUNCTION OUT outputs high-speed signals, the WF1966 is designed for use with 50
Ω
termination. To prevent performance deterioration, use a coaxial cable with a characteristic impedance
of 50
Ω
to connect to other equipment and terminate the input of equipment to be connected with 50
Ω
.
Although possible, using the equipment without 50
Ω
termination could lead to waveforms disturbed by
signal reflection or performance deterioration.
・ Setting and output voltages
The setting voltage display and actual output voltage (load terminal voltage) differ according to the load
resistance.
“5.5 Other settings ( ■ LOAD function (equalize setting and output values))”, cf.
! CAUTION