Wavetek 39A Bedienungsanleitung PDF herunterladen (Seite 2)

Amplitude

Output impedance: 50Ω

Range: 2.5 mVpp to 10 Vpp (5

mVpp to 20 Vpp into open cir-

cuit). Amplitude can be speciﬁed

open circuit (Hi Z) or into an

assumed load of 50Ω or 600Ω in

Vpp, Vrms or dBm.

Accuracy:

< 2% ± 1 mV at 1 kHz into 50Ω.

Amplitude flatness:

± 0.2 dB to 200 kHz; ± 1 dB to 5

MHz; ± 2 dB to 10 MHz.

Resolution: 3 digits or 1 mV.

Offset

Range:

± 5 Vp. DC offset plus signal

peak limited to ± 10V into 50Ω

Accuracy:

Typically ± 3% plus 10 mV,

unattenuated.

Resolution:

3 digits or 1 mV.

Output ﬁlter

Selectable between 10 MHz

Elliptic, 10 MHz Bessel or none.

Operating modes

Continuous

The selected waveform is

output continuously at the pro-

grammed frequency.

Triggered burst

Each active edge of the trigger

signal will produce one burst of

the waveform, starting and stop-

ping at the waveform position

speciﬁed by the sync marker set-

ting.

Waveforms:

All standard and universal.

Burst count: 1 to 1,048,575.

Rise and fall times: < 25 ns.

Period:

Range: 133.3 ns to 100s.

Resolution: 4 digits.

Accuracy: ± 1 digit of setting.

Delay:

Range: -99.9s to +99.9s.

Resolution:

0.002% of period or 33.33 ns.

Width:

Range: -33.33 ns to 99.99s.

Resolution:

0.002% of period or 33.33 ns.

Universal waveforms

Up to 50 universal (100 user

deﬁned) waveforms may be

stored in RAM. Universal wave-

forms can be deﬁned from front

panel editing controls or by

downloading waveforms via

RS-232 or GPIB. Front panel

editing tools include insertion of

stored waveforms, point editing

and line draw. Waveform DSP2 is

an optional software tool for cre-

ating and downloading wave-

forms over

RS-232 or GPIB.

Memory size: 65,536 points.

Maximum waveform size is

65,536 points, minimum wave-

form size is 4 points.

Vertical resolution: 12 bits.

Sample clock range:

100 mHz to 40 MHz.

Resolution: 4 digits.

Accuracy: ± 1 digit of setting.

Waveform sequencing: Up to

16 waveforms may be linked.

Each waveform can have a loop

count of up to 32,768. A

sequence of waveforms can be

looped up to 1,048,575 times or

run continuously.

Speciﬁcations

Speciﬁcations apply at 18°C-28°C after

30 minutes warm-up, at maximum

output into 50Ω.

Waveforms

Standard waveforms

Sine, square, triangle, DC,

ramp, negative ramp, sin(x)/x,

pulse, pulse train, cosine, haver-

sine, havercosine.

Sine, cosine, haversine,

havercosine

Range: 0.1 mHz to 16 MHz.

Resolution: 0.1 mHz (7 digits).

Accuracy: 10 ppm for 1 year.

Stability: < 1 ppm/°C.

Harmonic distortion:

< -60 dBc (0.1%) to 20 kHz.

< -50 dBc to 1 MHz.

< -35 dBc to 10 MHz.

Non-harmonic spurii:

< -65 dBc to 1 MHz.

Square

Range: 1 mHz to 16 MHz.

Resolution: 1 mHz (4 digits).

Accuracy: ± 1 digit of setting.

Rise and fall times: < 25 ns.

Triangle, ramps, sin(x)/x

Range: 0.1 mHz to 100 kHz.

Resolution: 0.1 mHz (7 digits).

Accuracy: 10 ppm for 1 year.

Linearity error:

< 0.1% to 30 kHz.

Pulse and pulse train

Trains of up to 10 pulses may be

speciﬁed, each having independ-

ently deﬁned width, delay and

amplitude level. Baseline voltage

is separately deﬁned and the

pulse/pulse-train repetition rate

is set by the pulse/pulse-train

period.

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39A Universal waveform generator

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Ordering 4

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