Atec Agilent-3326A - Manual

FREQUENCY, FUNCTION & WAVEFORM SYNTHESIZERS
Two-Channel Synthesizer, DC to 13 MHz
Model 3326A
HP 3326A
The HP 3326A Two-Channel Synthesizer combines two indepen-
dent synthesizers, flexible modulation, and control circuitry into a sin-
gle, powerful package. This single instrument can provide precise
phase offset, two-tone sweep, fast frequency switching, internal mod-
ulation, and pulse signals for bench or systems use.
Complete Two-Phase Solution
The HP 3326A can provide two signals whose phase is adjustable
and calibrated anywhere in its 13 MHz frequency range without an
external phasemeter.
Self-calibration can be performed internally or externally and
yields accuracy of ±0.2 degrees below 100 kHz. Phase can be set with
0.01 degree resolution at all frequencies. Using its unique phase-cali-
bration circuitry, calibrated multi-phase signals are easily achieved
with two or more HP 3326As.
Powerful Two-Tone Capability
The HP 3326A is the single-source answer for producing a wide
variety of broadband two-tone signals. It's two channels can be offset
up to ±100 kHz, either in the CW mode or while sweeping.
Channel amplitudes and functions (sine or square) can be selected
independently and provided from separate outputs or through the
built-in signal combiner. Low sinewave distortion (harmonics are at
least -70 dBc below 100 kHz) makes low-distortion intermodulation
measurements a simple task.
Versatile ATE Source
With two complete synthesizers in a single instrument, rack space
and power are conserved. Features like internal amplitude and phase
modulation, two-tone, and pulse modes allow this one instrument to
do the job of several sources.
All functions, modes, and parameters of the HP 3326A are com-
pletely programmable over the HP-IB. Maximum accuracy is en-
sured with amplitude/phase calibrations that can be enabled,
disabled and initiated under remote control.
High Performance Modulation and Pulses
Precise amplitude and phase modulation is easy with both channels
of the HP 3326A. Each channel can be used with simultaneous AM
and PM, or one channel can modulate the other. Amplitude modula-
tion frequency is dc to 100 kHz and envelope distortion is better than
-46 dB.
In the pulse mode both pulse and pulse-complement outputs are
provided. Symmetry range is 1 % to 99% and is settable in 0.1 % incre-
ments. In addition, both pulse amplitudes and their offsets are inde-
pendently controllable.
Other Features
The HP 3326A has a host of convenience features to speed and
simplify signal generation. Nine complete setup states can be stored
in nonvolatile memory, along with automatic storage of the power-off
state. A discrete sweep mode is available to generate from 2 to 63
frequency pairs with dwell times individually selectable for each fre-
quency and each channel. Several flexible triggering modes allow
hardware or software triggers to initiate frequency, amplitude, or
phase changes, and sweeps.
DC offset is available in all modes, and all outputs are floating.
Frequency resolution is I1 digits, and all
.
sweeps and frequency
changes are phase-continuous.
Specifications
For complete specifications refer to the HP 3326A data sheet.
Operating Modes
Two Channel: Channels A and B are independent
Two-Phase-, Channels A and B are the same frequency, with cali-
brated phase offset between the two signals
Two-Tons: Channel B frequency offset 0 to 100 kHz from channel A
frequency
Pulse: Channel B is the complement of Channel A
Frequency (Waveforms are Sine, Square, Pulse, and DC)
Range: 0 Hz to 13 MHz
Resolution: 1 MHz below 100 kHz, 1 mHz at and above 100 kHz
Stability: ±5x10 -6 /year, 20° to 30°C. See also option 001, High Sta-
bility Frequency Reference.
Accuracy: ±5x10 -6 of selected value, 20° to 30°C, at time of calibra-
tion with standard frequency reference
Sinewave Spectral Purity
Harmonics: Harmonically related signals will be less than the follow-
ing levels relative to the fundamental, or <-90 dBm, whichever is
greater:
10 Hz 50 kHz 100 kHz 1 MHz 13 MHz
+23.98 dBm
-80 dBc -70 dBc -35 dBc -30 dBc
+13.98 dBm
-80 dBc -80 dBc -65 dBc -30 dBc
-56.02 dBm
Integrated Phase noise: -66 dBc (Option 001 only, for a 30 kHz
band centered on a 10 MHz carrier excluding ±1 Hz about the carri-
er)
Main Signal Outputs (Channels A d B, All Waveforms Un-
less Noted)
Connectors: Front panel BNC female
Impedance: 50 0; output may be floated to ±42 V peak
Sync A: TTL level squarewave at Channel A frequency.
Output Amplitude (Sine Mode)
Range: 1 mVpp to 10 Vpp in 8 ranges without DC offset. See also
option 002 High Voltage Output
Units: Volts peak-peak, Volts rms, dBm (50 i2), dBV