HP hp33120a schematic
Uncompromising performance
for standard waveforms
The Agilent Technologies 33120A
Function/Arbitrary Waveform
Generator uses direct digital-synthesis techniques to create a stable,
accurate output signal for clean, lowdistortion sine waves. It also gives
you fast rise- and fall-time square
wave, and linear ramp waveforms
down to 100 µ Hz.
Custom waveform generation
Use the 33120A to generate complex
custom waveforms such as a heartbeat or the output of a mechanical
transducer. With 12-bit resolution,
and a sampling rate of 40 MSa/s, the
33120A gives you the flexibility to
create any waveform you need. It
also lets you store up to four 16,000deep waveforms in nonvolatile
memory.
Easy-to-use functionality
Front-panel operation of the 33120A
is straightforward and intuitive.
You can access any of ten major functions with a single key press or two,
then use a simple knob to adjust frequency, amplitude and offset. To
save time, you can enter voltage values directly in Vp-p, Vrms or dBm.
Internal AM, FM, FSK and burst
modulation make it easy to modulate
waveforms without the need for
a separate modulation source.
Linear and log sweeps are also built
in, with sweep rates selectable from
1 ms to 500 s. GPIB and RS-232 interfaces are both standard, plus you
get full programmability using SCPI
commands.
Optional phase-lock capability
The Option 001 phase lock/TCXO
timebase gives you the ability to generate synchronized phase-offset signals. An external clock input/output
lets you synchronize with up to three
other 33120As or with an external
10-MHz clock.
Option 001 also gives you a TCXO
timebase for increased frequency stability. With accuracy of 4 ppm/yr, the
TCXO timebase make a 33120A ideal
for frequency calibrations and other
demanding applications.
With Option 001, new commands
let you perform phase changes on
the fly, via the front panel or from
a computer, allowing precise phase
calibration and adjustment.
Link the Agilent 33120A to your PC
The included Agilent IntuiLink software allows you to easily create, edit,
and download complex waveforms
using the IntuiLink Arbitrary
Waveform Editor. Or you can capture a
waveform using IntuiLink Oscilloscope
or DMM and send it to the 33120A for
output. For programmers, ActiveX
components can be used to control the
instrument using SCPI commands.
IntuiLink provides the tools to easily
create, download, and manage waveforms for your 33120A. To find out
more about IntuiLink, visit
www.agilent.com/find/intuilink.
The 33120A can also be used in conjunction with the 34811A BenchLink
Arb software. This Windows®-based
program lets you create and edit
waveforms on your PC and download
them to the 33120A.
• 15 MHz sine and square wave outputs
• Sine, triangle, square, ramp, noise and more
• 12-bit, 40MSa/s, 16,000-point deep arbitrary waveforms
• Direct digital synthesis for excellent stability
Agilent 33120A
Function/Arbitrary Waveform Generator
Data Sheet
2
Waveforms
Standard Sine, square, triangle, ramp,
noise, sin(x)/x, exponential
rise exponential fall, cardiac,
dc volts.
Arbitrary
Waveform length 8 to 16,000 points
Amplitude resolution 12 bits (including sign)
Sample rate 40 MSa/s
Non-volatile memory Four (4) 16,000 waveforms
Frequency Characteristics
Sine 100 µHz - 15 MHz
Square 100 µHz - 15 MHz
Triangle 100 µHz - 100 kHz
Ramp 100 µHz - 100 kHz
White noise 10 MHz bandwidth
Resolution 10 µHz or 10 digits
Accuracy 10 ppm in 90 days,
20 ppm in 1 year,
18°C - 28°C
Temp. Coeff < 2 ppm/°C
Aging < 10 ppm/yr
Sinewave Spectral Purity
Harmonic distortion
dc to 20 kHz -70 dBc
20 kHz to 100 kHz -60 dBc
100 kHz to 1 MHz -45 dBc
1 MHz to 15 MHz -35 dBc
Spurious (non-harmonic)
DC to 1 MHz < -65 dBc
1 MHz to 15 MHz < -65 dBc + 6 dB/octave
Total harmonic distortion
DC to 20 kHz <0.04%
Phase noise <-55 dBc in a 30 kHz band
Signal Characteristics
Squarewave
Rise/Fall time < 20 ns
Overshoot 4%
Asymmetry 1% + 5ns
Duty cycle 20% to 80% (to 5 MHz)
40% to 60% (to 15 MHz)
Triangle, Ramp, Arb
Rise/Fall time 40 ns (typical)
Linearity <0.1% of peak output
Setting Time <250 ns to 0.5% of
final value
Jitter <25ns
Output Characteristics
Amplitude (into 50Ω) 50 mVpp - 10 Vpp
[1]
Accuracy (at 1 kHz) ± 1% of specified output
Flatness (sinewave relative to 1 kHz)
< 100 kHz ± 1% (0.1 dB)
100 kHz to 1 MHz ± 1.5% (0.15 dB)
1 Mz to 15 MHz ± 2% (0.2 dB) Ampl ≥3Vrms
± 3.5% (0.3 dB) Ampl
< 3Vrms
Output Impedance 50Ω (fixed)
Offset (into 50Ω)
[2]
+ 5 Vpk ac + dc
Accuracy ± 2% of setting + 2 mV
Resolution 3 digits, amplitude and off-
set
Units Vpp, Vrms, dBm
Isolation 42 Vpk maximum to earth
Protection Short circuit protected
± 15 Vpk overdrive < 1 minute
Modulation
AM
Carrier -3dB Freq. 10 MHz (typical)
Modulation any internal waveform
including Arb
Frequency 10 mHz - 20 kHz
Depth 0% - 120%
Source Internal/External
FM
Modulation any internal waveform
including Arb
Frequency 10 mHz - 10 kHz
Deviation 10 mHz - 15 MHz
Source Internal only
FSK
Internal rate 10 mHz - 50 kHz
Frequency Range 10 mHz - 15 MHz
Source Internal/External
(1 MHz max.)
Burst
Carrier Freq. 5 MHz max.
Count 1 to 50,000 cycles or infinite
Start Phase -360° to +360°
Internal Rate 10 mHz - 50 kHz ± 1%
Gate Source Internal/External Gate
Trigger Single, External or
Internal Rate
Sweep
Type Linear or Logarithmic
Direction Up or Down
Start F/Stop F 10 mHz - 15 MHz
Speed 1 ms to 500 s ± 0.1%
Trigger Single, External, or Internal
Rear Panel Inputs
Ext. AM Modulation ± 5 Vpk = 100% modulation
5kΩ input resistance
External Trigger/ TTL low true
FSK/Burst Gate
System Characteristics
[3]
Configuration Times
[4]
Function Change:
[5]
80 ms
Frequency Change:
[5]
30 ms
Amplitude Change: 30 ms
Offset Change: 10 ms
Select User Arb: 100 ms
Modulation Parameter
Change: <350 ms
Arb Download Times over GPIB
Arb Length Binary ASCII Integer ASCII Real
[6]
16,000 points 8 sec 81 sec 100 sec
8,192 points 4 sec 42 sec 51 sec
4,096 points 2.5 sec 21 sec 26 sec
2,048 points 1.5 sec 11 sec 13 sec
Arb Download Times over RS-232 at 9600 Baud:
[7]
Arb Length Binary ASCII Integer ASCII Real
[8]
16,000 points 35 sec 101 sec 134 sec
8,192 points 18 sec 52 sec 69 sec
4,096 points 10 sec 27 sec 35 sec
2,048 points 6 sec 14 sec 18 sec
[1]
100 mVpp - 20 Vpp into open circuit
[2]
Offset ≤ 2x pk - pk amplitude
[3]
Times are typical. May vary based on controller
performance
[4]
Time to change parameter and output the new
signal.
[5]
Modulation or sweep off
[6]
Times for 5-digit and 12-digit numbers
[7]
For 4800 baud, multiply the download times by
two; For 2400 baud, multiply the download times
by four, etc.
[8]
Time for 5-digit numbers; for 12-digit numbers,
multiply the 5-digit numbers by two
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