Modulation, Frequency/phase modulation (option 12) – Anritsu MG3690A User Manual

Page 8

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Frequency Generator Multiplication/Division Ratios:

Frequency Range

Divide Ratio, n

<10 MHz (Option 22)

modulation not available

10 to

15.625 MHz (Option 4)

256

>15.625 to

31.25 MHz (Option 4)

128

>31.25 to

62.5 MHz (Option 4)

64

>62.5 to

125 MHz (Option 4)

32

>125 to

250 MHz (Option 4)

16

>250 to

500 MHz (Option 4)

8

>500 to

1050 MHz (Option 4)

4

>1050 to

2200 MHz (Option 4)

2

>10 to

2000 MHz (Option 5)

1

>2 to

20 GHz

1

>20 to

40 GHz

1/2

>40 to

65 GHz

1/4

Frequency/Phase Modulation (Option 12)

Option 12 adds frequency and phase modulation, driven externally
via a rear panel BNC connector, 50

. For internal modulation, add

LF Generator Option 23. Frequency/Phase Modulation is not
available <10 MHz with Option 22.

For most accurate FM,

Φ

M

measurements, Bessel Null methods are

used.

Maximum Input:

±1V

Phase Modulation:

Parameter

Modes

Conditions

Specifications

for all Frequencies other than <2.2 GHz with option 4

Deviation

Bandwidth (3 dB)

Flatness

Accuracy

External

Sensitivity

±[Lesser of 3 rad or

(5 MHz)/(mod rate)]/n

±[Lesser of 400 rad or

(10 MHz)/(mod rate)]/n

DC to (Lesser of 10 MHz or

0.03 * Fcarrier)

DC to (Lesser of 1 MHz or

0.03 * Fcarrier)

±1 dB relative to 100 kHz rate

±1 dB relative to 100 kHz rate

10%

±(0.0025 rad/V to 5 rad/V)/n
±(0.25 rad/V to 500 rad/V)/n

Narrow

Wide

Narrow

Wide

Narrow

Wide

Narrow & Wide

Narrow

Wide

Rate= DC to

(Lesser of 8 MHz or 0.03 * Fcarrier)

Rate= DC to

(Lesser of 1 MHz or 0.03 * Fcarrier)

100 kHz rate

100 kHz rate

Rate= DC to

(Lesser of 1 MHz or 0.01 * Fcarrier)

Rate= DC to

(Lesser of 500 kHz or 0.01 * Fcarrier)

100 kHz, Int. or 1Vpk Ext., sine

Rate= DC to 8 MHz

Rate= DC to 1 MHz

100 kHz rate

100 kHz rate

Rate= DC to 1 MHz

Rate= DC to 500 kHz

100 kHz, Int. or 1Vpk Ext., sine

±[Lesser of 3 rad or

(5 MHz)/(mod rate)]/n

±[Lesser of 400 rad or

(10 MHz)/(mod rate)]/n

DC to 10 MHz

DC to 1 MHz

±1 dB relative to 100 kHz rate

±1 dB relative to 100 kHz rate

10%

±(0.0025 rad/V to 5 rad/V)/n
±(0.25 rad/V to 500 rad/V)/n

Conditions

Specifications

for Frequencies <2.2 GHz with option 4

Harmonic Distortion

Locked

10 MHz Rate, ±1 MHz Dev.

<1%

Rate= 10 kHz, Dev.= ±(1 MHz)/n

<1%

Deviation

Locked

Locked Low-noise

Unlocked Narrow

Unlocked Wide

Rate= 1 kHz to

(Lesser of 8 MHz or 0.03 * Fcarrier)

Rate= 50 kHz to

(Lesser of 8 MHz or 0.03 * Fcarrier)

Rate= DC to

(Lesser of 8 MHz or 0.03 * Fcarrier)

Rate= DC to 100 Hz

±[Lesser of 10 MHz or

300 * (mod rate)]/n

±[Lesser of 10 MHz or

3 * (mod rate)]/n

±(10 MHz)/n

±(100 MHz)/n

Rate= 1 kHz to 8 MHz

Rate= 50 kHz to 8 MHz

Rate= DC to 8 MHz

Rate= DC to 100 Hz

±[Lesser of 10 MHz or

300 * (mod rate)]/n

±[Lesser of 10 MHz or

3 * (mod rate)]/n

±10 MHz/n

±100 MHz/n

Bandwidth (3 dB)

Locked

Locked Low-noise

Unlocked Narrow

Unlocked Wide

100 kHz rate

100 kHz rate

100 kHz rate

DC rate

100 kHz rate

100 kHz rate

100 kHz rate

DC rate

1 kHz to

(Lesser of 10 MHz or 0.03 * Fcarrier)

30 kHz to

(Lesser of 8 MHz or 0.03 * Fcarrier)

DC to

(Lesser of 10 MHz or 0.03 * Fcarrier)

DC to 100 Hz

1 kHz to 10 MHz

30 kHz to 10 MHz

DC to 10 MHz

DC to 100 Hz

Flatness

Locked

Rate= 10 kHz to 1 MHz

Rate= 10 kHz to

(Lesser of 1 MHz or 0.01 * Fcarrier)

±1 dB relative to 100 kHz

Accuracy

Locked and Low-noise

Unlocked Narrow

Rate= 100 kHz, Sinewave

Int. or 1Vpk Ext.

10% (5% typical)

Rate= 100 kHz, Sinewave

Int. or 1Vpk Ext.

10% (5% typical)

Incidental AM

Locked and Low-noise

Unlocked Narrow

1 MHz Rate, ±1 MHz Dev.

±1 dB relative to 100 kHz

<2% typical

Rate and Dev.= Lesser of 1 MHz

or 0.01 * Fcarrier

<2% typical

External Sensitivity

Locked

Locked Low-noise

Unlocked Narrow

Unlocked Wide

±(10 kHz/V to 20 MHz/V)/n

±(100 kHz/V to 100 MHz/V)/n

±(10 kHz/V to 20 MHz/V)/n

±(100 kHz/V to 100 MHz/V)/n

Frequency Modulation:

Parameter

Modes

Conditions

Specifications

for all Frequencies other than <2.2 GHz with option 4

Conditions

Specifications

for Frequencies <2.2 GHz with option 4

Modulation

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