Atec Wiltron-Anritsu-69000A-68000B Series - Manual (Page 6)

FREQUENCY SYNTHESIZERS, SIGNAL GENERATORS
232
Waveforms
Sinusoid, squarewave, triangle, positive ramp, negative ramp, Gaussian noise, uniform noise,
user defined (Option 10)
Internal AM Rate 0.1 Hz to 1 MHz sinusoidal, 0.1 Hz to 100 kHz squarewave, triangle, ramps
generator Resolution 0.1 Hz
Accuracy Same as instrument timebase
Output BNC connector, rear panel
External FM input
Front or rear panel BNC, 50 Ω or 600 Ω input impedance
All options selectable from modulation menu
Continuously variable from ±10 kHz per volt to ±20 MHz per volt (locked, locked low noise and unlocked
FM sensitivity
narrow modes), or ±100 kHz per volt to ±100 MHz per volt (unlocked wide mode)
For 500 MHz units, maximum sensitivity is divided by 2 from 1 to 2.2 GHz and is divided by 4 from 500
MHz to 1 GHz.
Unlocked wide: ±100 MHz, DC to 100 Hz rates
Deviation
Unlocked narrow: ±10 MHz, DC to 8 MHz rates
Frequency
Locked: The lesser of ±10 MHz or rate x 300, 1 kHz to 8 MHz rates
modulation
Locked low noise: The lesser of ±10 MHz or rate x 3, 50 kHz to 8 MHz rates
Unlocked wide: DC to 100 Hz
FM bandwidth (3 dB)
Unlocked narrow: DC to 10 MHz
Locked: 1 kHz to 10 MHz
Locked low noise: 30 kHz to 10 MHz
Flatness ±1 dB (10 kHz to 1 MHz rates)
Accuracy 10% (5% typical, ±200 kHz deviation, 100 kHz rate)
Incidental AM <2% (±1 MHz deviation, 1 MHz rate)
Harmonic distortion <1% (±1 MHz deviation, 10 kHz rate)
Maximum input ±1 V
Waveforms
Sinusoid, squarewave, triangle, positive ramp, negative ramp, Gaussian noise, uniform noise, user defined
(Option 10)
Internal FM Rate 0.1 Hz to 1 MHz sinusoidal, 0.1 Hz to 100 kHz squarewave, triangle, ramps
generator Resolution 0.1 Hz
Accuracy Same as instrument timebase
Output BNC connector, rear panel
Narrow mode (DC to 8 MHz rates): The lesser of ±3 radians or ±5 MHz/rate
øM deviation
Wide mode (DC to 1 MHz rates):
The lesser of ±400 radians or ±10 MHz/rate. For 6XXX5 units, maximum deviation is divided by 2 from
>1.0 to
≤ 2.2 GHz and is divided by 4 from ≥ 0.5 to ≤ 1.0 GHz.
øM bandwidth (3 dB, Narrow mode: DC to 10 MHz
relative to 100 kHz rate) Wide mode: DC to 1 MHz
øM flatness (relative to Narrow mode (DC to 1 MHz rates): ±1 dB
Phase 100 kHz rate) Wide mode (DC to 500 kHz rates): ±1 dB
modulation
øM accuracy 10% (at 100 kHz sine wave)
(øM, Option 6)
External øM input
Front or rear panel BNC (shares the FM input), 50 Ω or 600 Ω input impedance. All options selectable from
modulation menu. Shares connectors with FM.
Continuously variable from ±0.0025 to ±5 radians per volt (narrow øM mode) or ±0.25 to ±500 radians per
External øM sensitivity volt (wide øM mode), selectable from modulation menu. For 6XXX5 units, maximum sensitivity is divided
by 2 from >1 to
≤ 2.2 GHz and is divided by 4 from ≥ 0.5 to <1 GHz.
External øM maximum
input
±1 V
Waveforms Sine, square, triangle, positive ramp, negative ramp, Gaussian noise, uniform noise, user defined (option 10)
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
On/off ratio >80 dB
Rise/fall time (10 to 90%) <10 ns (<5 ns typical). (for 6XXX5 units, rise/fall time below 1 GHz is 15 ns)
Minimum levelled pulse
Pulse
width
<100 ns ( ≥ 2 GHz), <1 µs (<2 GHz)
modulation* 6 Minimum unleveled
pulse width
<10 ns
Pulse overshoot <10% (for 60 and 65 GHz units, overshoot from 40 to 60 GHz is 20% typical)
Level accuracy relative
to CW
±0.5 dB ( ≥ 1 µs pulse width), ±1.0 dB (<1 µs pulse width) 100 Hz to 1 MHz PRF
Internal øM
generator
(shares the
internal FM
generator)
69200A/69300A/68200B/68300B modulation
Continued on next page