User manual

Appendix A: Specifications
A-12
AM700 Audio Measurement Set User Manual
Table A-3: Analog Generator Specifications (Cont.)
Capabilities Description
Amplitude Related Characteristics
Full Scale Output Amplitude Ranges
(Balanced outputs with source R = 10 Ω nominal)
Measured into a high impedance load. Amplitudes
will be approximately 0.14 dB lower if measured
across a 600 Ω load when the source R = 10 Ω
nominal.
Every 6 dB from –22.1 dBu (60.8 mV
RMS
) to
+13.9 dBu (3.84 V
RMS
) plus +20 dBu
(7.75 V
RMS
), +26.0 dBu (15.45 V
RMS
), and
+30 dBu (24.5 V
RMS
) for frequencies up to 20
kHz. Maximum output is limited to +28 dBu from
20 kHz to 80 kHz.
For 600 Ω source impedance, all amplitudes are
6 dB lower if measured across a 600 Ω load.
Maximum Generator Output Amplitude into a 600 Ω
Load
10 Hz to 20 kHz
Source Impedance = 10 Ω
Source Impedance = 600 Ω
+28 dBu
+24 dBu
Minimum Output Amplitude for 1 dB Accuracy 1 mV
Maximum Resolution
High Resolution Mode
10 Hz to 20 kHz
High Bandwidth Mode
11.7 Hz to 80 kHz
1 µV
3 µV
Amplitude Accuracy at 120 Hz, High Resolution
Generator
Normal Mode
At +13.9 dBu
–16.1 dBu to +30 dBu
–34.1 dBu to –16.1 dBu
–52.1 dBu to –34.1 dBu
Low Distortion Mode
0.1 dB, typically 0.05 dB
0.1 dB
0.15 dB, typically 0.1 dB
0.25 dB
+0.2 dB to –0.0 dB relative to Normal Mode
Amplitude Accuracy at 120 Hz, High Bandwidth
Generator
At +13.9 dBu
–16.1 dBu to +30 dBu
–34.1 dBu to –16.1 dBu
–52.1 dBu to –34.1 dBu
0.15 dB, typically 0.1 dB
0.15 dB, typically 0.1 dB
0.15 dB, typically 0.1 dB
0.25 dB