User manual

Appendix A: Specifications
AM700 Audio Measurement Set User Manual
A-11
Table A-3: Analog Generator Specifications (Cont.)
Capabilities Description
Output Characteristics
Channel Separation
High Resolution Mode
High Bandwidth Mode
100 dB for frequencies 20 Hz
70 dB for frequencies 70 Hz
Signals and Control
All signals are generated digitally using software running on a DSP56002 digital-signal processor,
driving audio digital-to-analog converters.
Types of Signals Supported by Hardware Signals that are band limited to 80 kHz.
Independence of Generated Signal Outputs The hardware allows either stereo or mono mode
generation. In stereo mode, each channel is
generated from a separate DAC, while for mono
mode, a signal DAC is used, followed by separate
output drivers for each channel (A and B).
The AM700 does not support stereo mode with
the high bandwidth generator.
Frequency Related Characteristics
Sine Wave Frequency Range
High Resolution Mode 10 Hz to 20 kHz
High Bandwidth Mode 11.719 Hz to 79992.188 kHz
Sine Wave Frequency Resolution
High Resolution Mode
High Bandwidth Mode
0.1 Hz
11.719 Hz
Sine Wave Frequency Accuracy 0.01%
Interchannel Phase Difference
High Resolution Mode
High Bandwidth Mode
These specifications apply only if generator chan-
nels are set to Follow A. When channels are not
in follow, their relative phases are arbitrary.
1 degree at 1 kHz
Typically 1 degree, 100 Hz to 20 kHz
Typically 1 degree at 1 kHz; 2 degrees at
20 kHz