Atec Anritsu-68369ANV - Manual (Page 16)

Internal ΦM Generator
(Shares the Internal FM Generator)
Waveforms: Sine, square, triangle, positive ramp, negative ramp,
Gaussian noise, uniform noise, user defined
➅
Rate: 0.1 Hz to 1 MHz for sine wave
0.1 Hz to 100 kHz for other waveforms
Resolution: 0.1 Hz
Accuracy: Same as instrument timebase.
Output: BNC connector, rear panel
Pulse Modulation
Pulse modulation specifications apply at maximum rated
power, unless otherwise noted.
On/Off Ratio: >80 dB
Rise/Fall Time (10 to 90%):
10 MHz to 1.0 GHz: <15 ns (<10 ns typical)
1.0 GHz to 65 GHz: <10 ns (<5 ns typical)
Minimum Leveled Pulse Width: <100 ns, ≥2 GHz
<1 µs, <2 GHz
Minimum Unleveled Pulse Width: <10 ns
Pulse Overshoot: <10%➆
Level Accuracy Relative to CW
(100 Hz to 1 MHz PRF):
±0.5 dB, ≥1 µs pulse width
±1.0 dB, <1 µs pulse width
Video Feedthrough: < ±10 mV, ≥2 GHz
Pulse Width Compression: < 8 ns typical
Pulse Delay (typical):
PRF Range: DC to 10 MHz unleveled
100 Hz to 5 MHz leveled
External Input: Front or rear-panel BNC, selectable from
modulation menu.
Drive Level: TTL compatible input
Input Logic: Positive-true or negative-true, selectable from
modulation menu.
Internal Pulse Generator:
Modes: Free-run, triggered, gated, delayed, singlet, doublet,
triplet, quadruplet
Accuracy: 10 ns (5 ns typical)
Inputs/Outputs:
Video pulse and sync out, rear-panel
BNC connectors
Scan Modulation (Option 20) ➈
Frequency Range: 1 to 20 GHz
Attenuation Range: 0 to 60 dB
Flatness: ±2 dB, 0 to 40 dB
±3.5 dB, 40 to 60 dB
Step Response: <1 µs
Sensitivity: −10 dB/V
Insertion Loss
(when engaged):
<6 dB, 1 to 18 GHz
<8 dB, 18 to 20 GHz
Input: Rear-panel BNC (f) connector
14
683XXC/693XXB MODULATION
➅ User-defined waveforms are available with Option 10.
➆ For 50, 60 and 65 GHz units, overshoot from 40 to 65 GHz is 20% typical
at rated power.
➇ Period must be longer than the sum of delay and width by 5 clock
cycles minimum.
➈ Option 20, SCAN Modulator is available on models 68337C, 68347C, 69337B
and 69347B only. When Option 20 SCAN Modulator is installed, Option 7 and
Option 8 are not available.
Mode Pulse Delay (ns)
External 50
Triggered 100
Triggered with Delay 200
Parameter
Selectable Clock Rate
40 MHz 10 MHz
Pulse Width 25 ns to 419 ms 100 ns to 1.6s
Pulse Period ➇ 250 ns to 419 ms 600 ns to 1.6s
Variable Delay
Singlet
Doublet
Triplet
Quadruplet
0 to 419 ms
100 ns to 419 ms
100 ns to 419 ms
100 ns to 419 ms
0 to 1.6s
300 ns to 1.6s
300 ns to 1.6s
300 ns to 1.6s
Resolution 25 ns 100 ns