User guide

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Digital Storage Oscilloscopes
Models 2540B. 2542B, 2540B-GEN, 2542B-GEN
v030314
Function/Arbitrary Waveform Generator Specifications
These specifications apply to models 2540B-GEN and 2542B-GEN only.
Models 2540B-GEN & 2542B-GEN
Frequency Characteris tics
Sine
1 µHz to 20 MHz (2540B-GEN)
1 µHz to 40 MHz (2542B-GEN)
Square 1 µHz to 20 MHz
Pulse 1 mHz to 10 MHz
Built-in AWG 1 mHz to 1 MHz
User AWG 1 mHz to 1 MHz
Frequency resolution
Sine, Square: 1 µHz
Pulse, Built-in ARB, User ARB: 1 mHz
Frequency accuracy ≤ ± 5 x 10
-4
Frequency stability ± 5 x 10
-5
Waveform Characteristics
Harmonic distortion (sine)
< 5 MHz: -50 dBc
≤ 10 MHz: -45 dBc
>10 MHz: -40 dBc
Rise / Fall time (square, pulse) < 20 ns
Duty cycle (pulse)
10% to 90% (at 10 MHz)
0.01% to 99.99% (below 10 kHz)
Pulse width 10 ns to 999.99 s
Arbitrary
Waveform length 8000 points
Vertical resolution 8 bits
Sampling rate 40 MSa/s
Non-volatile memory 10 waveforms storage capability
Built-in arbitrary waveforms
Sine, Square, Triangle, Up ramp, Down ramp, Positive
pulse, Negative pulse, Positive double pulse, Negative
double pulse, Positive DC, Negative DC, Full Wave, Half
Wave, Clipped Sine, Gate Sine, SQRT, Exponential, Log,
Semicircle, Tanh, Sinc, Noise, Duty 10%, Duty 90%, Up
Step, Down Step, Tri-pulse, Trapezoidal, Cosine, and SCR
Amplitude Characte ristics
Generator Output (GEN OUT)
Amplitude range
freq. ≤ 20 MHz: 2 mVpp to 20 Vpp (open circuit),
1 mVpp to 10 Vpp (50 Ω)
freq. > 20 MHz: 2 mVpp to 6 Vpp (open circuit),
1 mVpp to 3 Vpp (50 Ω)
Resolution 1 µVpp (max.)
Accuracy ≤ ± 5% ±1 mV @ 1 kHz sine waveform
Flatness
freq. ≤ 5 MHz: ± 5%
freq. > 5 MHz: ± 10%
Flatness (built-in AWG, user AWG)
freq. ≤ 50 kHz: ± 5%
freq. > 50 kHz: ± 20%
Output impedance 50 Ω
Modulating Waveform Output (MOD OUT)
Waveforms All 30 built-in arbitary waveforms
Output amplitude 5 Vpp ± 20%
Output impedance 600 Ω
AM, FM, PWM, and DCOM Modulation Characteristics
Carrier waveforms
Sine, Square (AM, FM, DCOM)
Pulse (PWM)
Modulating waveforms All 30 built-in arbitrary waveforms
Modulation frequency 1 mHz to 1 MHz
AM modulation depth 0% to 120%
FM Frequency deviation 0.1% to 99.9%
PWM Width deviation 1% to 99%
FSK Modulation Characte ristics
Carrier waveform Sine
Hop frequency 1 µHz to 40 MHz
Interval time 1 ms to 40 s
PSK Modulation Characteristics
Carrier waveform Sine
Hop phase 0° to 360°
Interval time 1 ms to 40 s
Frequency Sweep Characteristics
Waveforms Sine, Square
Frequency range
1 µHz to 20 MHz (2540B-GEN)
1 µHz to 40 MHz (2542B-GEN)
Sweep mode Linear Up, Down, Up-Down
Sweep time 1 ms to 500 s
Burst Characteristics
Waveforms All 30 built-in arbitrary waveforms
Counts 1 to 60000 cycles
Burst rate 1 mHz to 1 MHz