Datasheet

Page 15
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Two-channel characteristics (all 2-channel models)
Modulation, burst, and sweep characteristics (continued)
Sweep time
Linear 1 millisecond to 3,600 seconds, 1-ms resolution
3,601 seconds to 250,000 seconds, 1-second resolution
Logarithmic 1 millisecond to 500 seconds, 1-ms resolution
Hold time 0 to 3,600 seconds, 1-ms resolution
Return time 0 to 3,600 seconds, 1-ms resolution
Trigger source
13,14
Immediate (continuous), external (rear-panel connector), manual (front-panel button), bus or internal timer
Marker Indicated by the trailing edge of the Sync pulse; adjustable to any frequency between Start and Stop for Linear and Logarithmic
types or any frequency in the list for List type.
Internal timer for FSK, BPSK, burst, and sweep
Range 1 µs to 8,000 seconds, 6-digit or 8-ns resolution (33500B Series models)
1 µs to 4,000 seconds, 4-ns resolution (33600A Series models)
Standard
Trueform Models 33500B Series, 2-channel models 33600A Series, 2-channel models
Standard
Operating modes Independent, Coupled parameter(s), Combined (Ch 1 + Ch 2), Equal (Ch 1 = Ch 2), or Differential (Ch 1 = −Ch 2)
Parameter coupling None, Frequency (ratio or difference) and/or Amplitude and DC offset
Relative Phase 0° to 360°, 0.1° resolution
Channel-to-channel skew (typ)
(Both channels configured identically)
< 200 ps < 100 ps
Crosstalk (typ) < –85 dB
IQ player characteristics
Trueform Series 33512B/33522B 33612A/33622A
Balance Adjust
Operation This option enables a two-channel model with arbitrary waveform capability to function as a baseband
IQ (quadrature modulation) source. Programmable impairments include amplitude imbalance, DC offset
difference, and channel-to-channel time skew.
Channel-to-channel amplitude balance
11
-30% to +30%, 0.001% resolution
Channel-to-channel DC offset difference ± (5 VDC - peak AC), 0.1-mV resolution into 50 Ω
± (10 VDC - peak AC), 0.2-mV resolution into open circuit
Channel-to-channel time skew -4 ns to +4 ns, 10-ps resolution -1 ns to +1 ns, 10-ps resolution
Display views Voltage versus Time or Constellation diagram (Channel 1 versus Channel 2)
IQ player characteristics (33512B, 33522B, 33612A, 33622A)
Trueform Series 33500B Series 33600A Series
Sync/marker output
Connector Front-panel BNC, shell and pin isolated from chassis (± 42 V maximum)
Functions Sync, Sweep Marker, Burst Marker, Arbitrary Waveform Marker, or Off
Assignment Channel 1 or Channel 2
Polarity Normal or Inverted
Output level (nom) 0 to +1.5 V into 50 Ω ; 0 to +3.0 V into high impedance
Output impedance (nom) 50 Ω
Minimum pulse width (nom) 16 ns 5 ns
Sync/Marker output
Footnotes referenced on page 18