Manual

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50 MHz Arbitrary / Function Generators
M
odels 4076 & 4079
Channels 1 Channel 2 Channels
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Sine 1 µHz to 50 MHz
Square 1 µHz to 50 MHz
Triangle, Ramp 1 µHz to 5 MHz
Pulse 0.5 mHz to 25 MHz
Accuracy 0.001 % (10 ppm)
Resolution 12 digits or 1 µHz
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Built-in Waveforms Sine, Triangle, Square, Noise, Ramp Up, Ramp
Down, Sine(X)/X, Exponential Up, Exponential
Down, Gaussian
Waveform Length 2 points to 4,000,000 points
Vertical Resolution 14 bits (16,384 levels)
Noise Add 1% to 100% to output waveform
Sampling Rate 125 MSa/s, Point execution rate adjustable from 8 ns-100 s
Frequency Accuracy: 0.005% (50 ppm)
Resolution: 4 digits or 1 ps
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Amplitude Range 10 mV to 10 Vp-p into 50 Ω
Amplitude Resolution 3 digits (1000 counts)
Amplitude Accuracy (1 kHz) ± 1% ± 20 mV of programmed output from
1 V – 10 V
Flatness (relative to 1 kHz) ± 0.1 dB to 10 MHz
± 1 dB to 50 MHz
Offset Range ± 4.99 V into 50 Ω, depending on the
Amplitude setting
Offset Resolution 10 mV with 3 digits resolution
Offset Accuracy ± 1% ± 10 mV into 50 Ω 
Output Impedance 50 Ω typical
Output Protection The instrument’s output is protected against
short circuit or nominal accidental voltages
applied to the main output connector
Filter 9 pole Elliptic and 5 pole Bessel filters
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Harmonic Distortion (sine) DC-20 kHz, -65 dBc
20 kHz-100 kHz, 60 dBc
100 kHz-5 MHz, -45 dBc
5 MHz-50 MHz, -35 dBc
Spurious (sine) DC-1 MHz < -65 dBc
Rise/Fall Time (square, pulse) < 6 ns (10% to 90%) at full amplitude into 50 Ω
Variable Duty Cycle 20% to 80% to 10 MHz (square)
40% to 60% to 30 MHz (square)
50% >30 MHz (square)
Variable Symmetry 10%-90% to 5 MHz (triangle)
Symmetry at 50% < 0.5 %
Linearity (triangle, ramp) <0.1% of peak output (1 µHz to 250 kHz)
Aberrations < 3 % of p-p amplitude ± 50 mV
Pulse Width 20 ns to <(Period-20 ns)
(10 ns resolution)
Variable Edge Time 100 ns to Width/0.625 (50 % duty cycle)
10 ns resolution
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Continuous Output continuous at programmed parameters
Triggered Output quiescent until triggered by an internal or
external trigger, at which time one waveform cycle is
generated to programmed parameters. Frequency of
waveform cycle is limited to 20 MHz in ARB mode
and 10 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 -180 to +180 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)
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Amplitude Modulation
Internal 0.01 Hz-20 kHz sine , square or triangle waveform
variable modulation from 0% to 100%
External 5 Vp-p for 100% modulation, 10 kΩ input
impedance, 0.01 Hz – 50 KHz bandwidth
Frequency Modulation
Internal 0.01 Hz-20 kHz sine wave, square or triangle
External 5 Vp-p for 100% deviation, 10 kΩ input impedance
0.01 Hz – 50 kHz bandwidth
FSK
Internal 0.01 Hz to 1 MHz
External 1 MHz max.
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Sweep Shape Linear and Logarithmic, up or down
Sweep Time 10 ms to 500 s
Sweep Trigger internal, external, continuous or burst
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Trigger IN TTL Compatible
Maximum rate 20 MHz
Minimum width 20 ns
Input Impedance10 kΩ nominal
Sync OUT TTL pulse at programmed frequency, 50 Ω source
impedance
Modulation IN 5 Vp-p for 100% modulation
10 kΩ 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
Summing IN Adds signal from an external source to the main
output. Input impedance is 500 Ω
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Repetition 1 ms to 100 s
Resolution 4 digits
Accuracy ±0.002%
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Display Resolution 160 x 80 dots LCD
Remote Control Interface GPIB, RS-232
Store Memory 50 full panel settings at power-off
Dimensions (WxHxD) 8.4(213) x 3.5(88) x 10.8(275) inches (mm)
Weight Approx. 2.5 kg (5.55 lbs)
Power 100-240 VAC ± 10%, 50 VA max.
Temperature Operating 0 ºC to + 50 ºC
Non-operating -20 ºC to + 70 ºC
Humidity 95 % RH , 0 ºC to 30 ºC
EMC According to EN55011 for radiated and conducted
emissions
Electrical Discharge Immunity According to EN55082
Safety Specifications According to EN61010 , CE approved
Accessories
Supplied: CD containing user manual & Wave-X software, null modem serial
interface cable, power cord
Specifications
4076 4079
models
Three Year Warranty
v010610