Atec Anritsu-MG3690 Series - Manual (Page 9)

9
Frequency Generator Multiplication/Division Ratios:
Phase Modulation:
Frequency Modulation:
Modulation
Frequency/Phase Modulation (Option 12)
Option 12 adds frequency and phase modulation, driven externally via a rear panel BNC
connector, 50 Ω. For internal modulation, add Internal LF Generator and Pulse Generator
Option 27. Frequency/Phase Modulation is not available <10 MHz with Option 22.
For the most accurate FM and ΦM measurements, Bessel Null methods are used.
When verifying FM and ΦM, the use of the “carrier null” technique is recommended.
Measured residual FM effects must be subtracted from modulation meter measurements.
Frequency Range Divide Ratio, n
< 10 MHz (Option 22) modulation not available
≥ 10 MHz to ≤ 15.625 MHz (Option 4) 256
> 15.625 MHz to ≤ 31.25 MHz (Option 4) 128
> 31.25 MHz to ≤ 62.5 MHz (Option 4) 64
> 62.5 MHz to ≤ 125 MHz (Option 4) 32
> 125 MHz to ≤ 250 MHz (Option 4) 16
> 250 MHz to ≤ 500 MHz (Option 4) 8
> 500 MHz to ≤ 1050 MHz (Option 4) 4
> 1050 MHz to ≤ 2200 MHz (Option 4) 2
> 10 MHz to ≤ 2000 MHz (Option 5) 1
> 2 GHz to ≤ 20 GHz 1
> 20 GHz to ≤ 40 GHz 1/2
> 40 GHz to ≤ 67 GHz 1/4
Parameter Modes
Conditions Specifications Conditions Specifications
for all Frequencies other than < 2.2 GHz with Option 4 for Frequencies < 2.2 GHz with Option 4
Deviation
Locked Rate= 1 kHz to 8 MHz
± [Lesser of 10 MHz or 300 *
(mod rate)]/n
Rate = 1 kHz to (Lesser of
8 MHz or 0.03 * Fcarrier)
± [Lesser of 10 MHz or
300 * (mod rate)]/n
Locked Low-noise Rate= 50 kHz to 8 MHz
± [Lesser of 10 MHz or
3 * (mod rate)]/n
Rate = 50 kHz to (Lesser of
8 MHz or 0.03 * Fcarrier)
± [Lesser of 10 MHz or
3 * (mod rate)]/n
Unlocked Narrow Rate= DC to 8 MHz ± 10 MHz/n
Rate = DC to (Lesser of
8 MHz or 0.03 * Fcarrier)
± (10 MHz)/n
Unlocked Wide Rate= DC to 100 Hz ± 100 MHz/n Rate = DC to 100 Hz ± (100 MHz)/n
Bandwidth (3 dB)
Locked 1 kHz to 10 MHz
1 kHz to (Lesser of 10 MHz or
0.03 * Fcarrier)
Locked Low-noise 30 kHz to 10 MHz
30 kHz to (Lesser of 8 MHz or
0.03 * Fcarrier)
Unlocked Narrow DC to 10 MHz
DC to (Lesser of 10 MHz or
0.03 * Fcarrier)
Unlocked Wide DC to 100 Hz DC to 100 Hz
Flatness Locked Rate= 10 kHz to 1 MHz ± 1 dB relative to 100 kHz
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 1 Vpk Ext.
10% (5% typical)
Rate= 100 kHz sinewave
Int. or 1 Vpk Ext.
10% (5% typical)
Incidental AM
Locked and Low-noise
Unlocked Narrow
1 MHz Rate, ± 1 MHz Dev. < 2% typical
Rate and Dev.= Lesser of 1 MHz
or 0.01 * Fcarrier
< 2% typical
Harmonic Distortion Locked 10 kHz Rate, ± 1 MHz Dev. < 1% Rate = 10 kHz, Dev.= ± (1 MHz)/n < 1%
External Sensitivity
Locked
Locked Low-noise
Unlocked Narrow
Unlocked Wide
(± 1V maximum input)
± (10 kHz/V to 20 MHz/V)/n
″
″
± (100 kHz/V to 100 MHz/V)/n
(± 1 Vpk maximum input)
± (10 kHz/V to 20 MHz/V)/n
″
″
± (100 kHz/V to 100 MHz/V)/n
Parameter Modes
Conditions Specifications Conditions Specifications
for all Frequencies other than < 2.2 GHz with Option 4 for Frequencies < 2.2 GHz with Option 4
Deviation
Narrow Rate= DC to 8 MHz
± [Lesser of 3 rad or
(5 MHz/mod rate)]/n
Rate = DC to (Lesser of
8 MHz or 0.03 * Fcarrier)
± [Lesser of 3 rad or
(5 MHz/mod rate)]/n
Wide Rate= DC to 1 MHz
± [Lesser of 400 rad or
(10 MHz/mod rate)]/n
Rate = DC to (Lesser of
1 MHz or 0.03 * Fcarrier)
± [Lesser of 400 rad or
(10 MHz/mod rate)]/n
Bandwidth (3 dB)
Narrow DC to 10 MHz
DC to (Lesser of 10 MHz or
0.03 * Fcarrier)
Wide DC to 1 MHz
DC to (Lesser of 1 MHz or
0.03 * Fcarrier)
Flatness
Narrow Rate= DC to 1 MHz ± 1 dB relative to 100 kHz
Rate = DC to (Lesser of 1 MHz
or 0.01 * Fcarrier)
± 1 dB relative to 100 kHz rate
Wide Rate= DC to 500 kHz ± 1 dB relative to 100 kHz
Rate = DC to (Lesser of 500 kHz
or 0.01 * Fcarrier)
± 1 dB relative to 100 kHz rate
Accuracy Narrow and Wide
100 kHz Internal or
1Vpk External, sine
10%
100 kHz Internal or
1 Vpk External, sine
10%
External Sensitivity
Narrow
Wide
(± 1 V maximum input)
± (0.0025 rad/V to 5 rad/V)/n
± (0.25 rad/V to 500 rad/V)/n
(± 1 Vpk maximum input)
± (0.0025 rad/V to 5 rad/V)/n
± (0.25 rad/V to 500 rad/V)/n