Input/Output Interfaces

5.8.5 Audio Specifications

The specifications for the integrated AC97 audio subsystem are listed in Table 5-26.

Table 5-26.

AC97 Audio Subsystem Specifications

Parameter

Measurement

 

 

Sampling Rate

7040 KHz to 48 KHz

 

 

Resolution

16 bit

 

 

Nominal Input Voltage:

 

Mic In (w/+20 db gain)

.283 Vp-p

Line In

2.83 Vp-p

 

 

Impedance:

 

Mic In

1 K ohms (nom)

Line In

10 K ohms (min)

Line Out

800 ohms

 

 

Signal-to-Noise Ratio (input to Line Out)

90 db (nom)

 

 

Frequency Response (-3db to Line Output):

 

Line Input

20 Hz – 20 KHz

Mic Input

100 Hz – 12 KHz

A/D (PC record)

 

Line input

20 Hz – 19.2 KHz

Mic input

100 Hz – 8.8 Khz

D/A (PC playback)

20 Hz – 19.2 KHz

 

 

Max. Power Output (with 10% THD):

 

Small Form Factor

8 watts (into 8 ohms)

Slim Desktop/Configurable Minitower

3 watts (into 16 ohms)

 

 

Input Gain Attenuation Range

-46.5 db

 

 

Master Volume Range

-94.5 db

 

 

Frequency Response:

 

Codec

20–20 KHz

Speaker (Small Form Factor)

450–4000 Hz

 

 

Technical Reference Guide

361834-002

5-35