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Technical Reference Guide www.hp.com 5-13
Input/Output Interfaces
5.7.4 Audio Specifications
The specifications for the HD Audio subsystem are listed in Table 5-9.
Table 5-9.
HD Audio Subsystem Specifications
Parameter Measurement
Sampling Rates (DAC and ADC): 8 kHz to 192 kHz
Resolution:
DAC
ADC
24-bit
24-bit
Nominal Input Voltage:
Mic In (w/+20 db gain)
Line In
.283 Vp-p
2.83 Vp-p
Subsystem Impedance:
Mic In
Line In
Line Out (minimum expected load)
Headphones Out (minimum expected load)
150K ohms
150K ohms
10K ohms
32 ohms
Signal-to-Noise Ratio
Line out
Headphone out
Microphone / line in
90 db (nom)
90 db (nom)
85 db (nom)
Total Harmonic Distortion (THD)
Line out
Headphone out
Microphone / line in
-84 db
-80 db
-78 db
Max. Subsystem Power Output to 4-ohm Internal
Speaker (with 10% THD):
1.5 watts
Gain Step 1.5 db
Master Volume Range -58.5 db
Frequency Response:
ADC/DAC
Internal Speaker
20– 20000 Hz
450–20000 Hz