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Frequency synthesizers, signal generators – Atec Wiltron-Anritsu-69000A-68000B Series User Manual

Page 5

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231

FREQUENCY SYNTHESIZERS, SIGNAL GENERATORS

5

Without an attenuator

Maximum levelled power to –15 dBm (–20 dBm typical). For units with Option 15 installed, minimum

Levelled output

settable power is –5 dBm (–10 dBm typical).

power range

With an attenuator

Maximum levelled power to –115 dBm (–120 dBm typical). For units with upper limit

50 GHz and units with

Option 15 installed, minimum settable power is –105 dBm (–110 dBm typical).

Without an attenuator

>40 dB below max power

With an attenuator

>130 dB below max power

Without change in step
attenuator

<1 ms typical

With change in step
attenuator

<20 ms typical

Attenuation

0.01 to

below max

0.05 GHz

0.05 to 20 GHz

20 to 40 GHz

40 to 50 GHz

50 to 60 GHz

60 to 65 GHz

power

0 to 25 dB

±2.0 dB

±1.0 dB

±1.0 dB

±1.5 dB

±1.5 dB

±1.5 dB

Accuracy

25 to 60 dB

±2.0 dB

±1.0 dB

±1.0 dB

±1.5 dB

±3.5 dB

>60 dB

±2.0 dB

±1.0 dB

±1.0 dB

±2.5 dB

±3.5 dB

0 to 25 dB

±2.0 dB

±0.8 dB

±0.8 dB

±1.1 dB

±1.1 dB

±1.1 dB

Flatness

25 to 60 dB

±2.0 dB

±0.8 dB

±0.8 dB

±1.1 dB

±3.1 dB

>60 dB

±2.0 dB

±0.8 dB

±0.8 dB

±2.1 dB

±3.1 dB

Output power resolution

0.01 dB

Level offset

Offsets the displayed power level to establish a new reference level

Range

Sweeps between any two power levels at a single CW frequency

Resolution

0.01 dB/step

CW power

Accuracy

Same as CW power accuracy

sweep

Step size

User-controlled, 0.01 dB to the full power range of the instrument

Step dwell time

Variable from 1 ms to 99 seconds. If the sweep crosses a step attenuator setting, there will be a sweep
dwell of approximately 20 ms to allow setting of the step attenuator.

Sweep frequency/step power

A power level step occurs after each frequency sweep. Power level remains constant for length of time
required to complete each sweep.

External AM input

Log AM or linear AM input, front or rear-panel BNC, 50

or 600

input impedance All options selectable

from modulation menu

AM sensitivity

Log AM: Continuously variable from 0 to 25 dB/V

Amplitude

Linear AM: Continuously variable from 0 to 100%/V

modulation

AM depth

0 to 90% linear, 20 dB log (typical with RF level at 6 dB below maximum rated output)

AM bandwidth (3 dB)

DC to 50 kHz minimum (DC to 100 kHz typical)

Maximum input

±1 V

External FM input

Front or rear panel BNC, 50

or 600

input impedance. All options selectable from modulation menu

Frequency

FM sensitivity

Variable from ±10 kHz/V to ±20 MHz/V (narrow FM modes) or from ±100 kHz/V to ±100 MHz/V (wide FM mode)*

3

modulation

Narrow mode: ±10 MHz, DC to 500 kHz rates

Deviation

Wide mode: ±100 MHz, DC to 100 Hz rates
Locked mode: The lesser of ±10 MHz or rate x 300, 1 to 500 kHz rates

On/off ratio

>50 dB

Rise/fall time

<1 µs typical

Internal square wave

Four square wave signals (400 Hz, 1 kHz, 7.8125 kHz, and 27.8 kHz), selectable from modulation menu

Square wave

generator

Accuracy: Same as internal or external 10 MHz time base

modulation*

4

Square wave symmetry: 50% ±5% at all power levels

Front or rear-panel BNC, selectable from modulation menu

External input

Drive level: TTL compatible input
Minimum pulse width: >5 µs
Input logic: Positive-true or negative-true BNC, selectable from modulation menu

External AM input

Log AM or linear AM input, front or rear-panel BNC, 50

or 600

input impedance

All options selectable from modulation menu

AM sensitivity

Log AM: Continuously variable from 0 to 25 dB per volt
Linear AM: Continuously variable from 0 to 100% per volt

AM depth (typical)

0 to 90% linear; 20 dB log

Amplitude

AM bandwidth

DC to 50 kHz minimum (DC to 100 kHz typical)

modulation*

5

Flatness

±0.3 dB (DC to 10 kHz rates)

Accuracy

±5%

Distortion

<5% typical

Incidental phase
modulation

<0.2 radians (30% depth, 10 kHz rate)

Maximum input

±1 V

Unleveled
output power
range (typical)

Power level
switching time
(to within speci-
fied accuracy)

Accuracy and
flatness (step
sweep and CW
modes)

69100A/68100B modulation

69200A/69300A/68200B/68300B modulation

RF output

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