B&K Precision 4078 - Manual - Manual (Page 9)

Output Leakage
Approximately 10 mA can be present at the output
BNC connector when unit is powered on and the
output is off
Waveform
Characteristics
Total Harmonic Distortion (sine)
DC-20 kHz, -65 dBc
20 kHz-50 kHz, -60 dBc
50 kHz-100 kHz, -50 dBc
100 kHz-10 MHz, -45 dBc
10 MHz-25 MHz, -35 dBc
Spurious (sine) DC-1 MHz < -60 dBc
Rise/Fall Time (square, pulse) < 12 ns (10% to 90%) at full amplitude into 50
Ω
Variable Duty Cycle
20% to 80% to 5 MHz (square)
40% to 60% to 10 MHz (square)
50% >10 MHz (square))
Variable Symmetry 10%-90% to 5 MHz (triangle)
Symmetry at 50% < 1 % + 5 ns
Linearity (triangle, ramp) <0.1% of peak output (1 µHz to 250 kHz)
Pulse Width
(period 10 μs - 0.1 μs)
20 ns to < ( Period -20 ns )
(10 ns resolution)
Variable Edge Time
(period 100 μs - 0.16 μs)
100 ns to Width/0.625 (50 % duty cycle)
10 ns resolution
Operating Modes
Continuous Output continuous at programmed parameters
Triggered
Output quiescent until triggered by an internal or
external trigger, then one waveform cycle is generated
to programmed parameters. Up to 10 MHz trigger rate
for ARB waveforms and 5 MHz in DDS mode
Gate
Same as triggered mode, except waveform is executed
for the duration of the gate signal. The last cycle
started is completed
Burst 2-999,999 cycles
Phase -360.0 to +360 degrees with 0.1 degree resolution
Trigger Source
Trigger source may be internal, external or manual.
Internal trigger rate 0.01 Hz-1 MHz (1 µs – 100 s)
Modulation
Characteristics
Amplitude
Modulation
Internal
0.1 Hz-20 kHz sine , square or triangle waveform
variable modulation from 0% to 100%
External
5 Vp-p for 100% modulation, 10 k
Ω input impedance
0.01 Hz – 50 KHz bandwidth
Frequency
Modulation
Internal 0.1 Hz-20 kHz sine wave, square or triangle
External
5 Vp-p for 100% deviation, 10 k
Ω input impedance,
0.01 Hz – 50 kHz bandwidth
Sweep
Characteristics
Sweep Shape Linear and Logarithmic, up or down
Sweep Time 20 ms to 500 s
Sweep Trigger internal, external, continuous or burst
Inputs and
Outputs
Trigger IN
TTL Compatible
Maximum rate 10 MHz in ARB mode, 3 MHz in DDS
mode
Minimum width 50ns
Sync OUT
TTL pulse at programmed frequency, 50ohms source
impedance
Modulation IN
5 Vp-p for 100% modulation
10 K
Ω input impedance
DC to >50 kHz minimum bandwidth
Marker Out
Positive TTL pulse user programmable in Arbitrary
waveform, 50
Ω source impedance
Reference IN-OUT
10 MHz, TTL compatible, input or output, for external
unit synchronization 50
Ω output impedance and 1 kΩ
input