HP Compaq dc7800 Series User Manual

Technical Reference Guide www.hp.com 5-15
Input/Output Interfaces
5.9.4 Audio Specifications
The specifications for the HD Audio subsystem are listed in Table 5-11.
Table 5-11.
HD Audio Subsystem Specifications
Parameter Measurement
Sampling Rates:
DAC
ADC
44.1-, 48-, 96-, & 192-KHz
44.1-, 48-, 96-, & 192KHz
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)
20K ohms
20K 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 wa t t s
Gain Step 1.5 db
Master Volume Range -58.5 db
Frequency Response:
ADC/DAC
Internal Speaker
20– 20000 Hz
450–20000 Hz

HP Compaq dc7800 Series Specifications

General

Processor	Intel Core 2 Duo, Intel Pentium Dual-Core, Intel Celeron
Chipset	Intel Q35 Express
Memory	Up to 8 GB DDR2 SDRAM
Audio	Integrated High Definition Audio
Form Factor	Ultra-slim desktop, Small form factor, Convertible minitower
Storage	80GB to 500GB SATA HDD
Graphics	Integrated Intel Graphics Media Accelerator 3100
Optical Drive	DVD-ROM, DVD+/-RW
Network	Integrated Gigabit Network Connection
Ports	USB 2.0, VGA, serial, parallel, audio in/out
Operating System	Windows Vista, Windows XP, FreeDOS
Expansion Slots	1 low-profile PCI, 1 low-profile PCI Express x16
Power Supply	240W