Ampro Corporation LITTLE BOARD 5001451A - Manual (Page 47)

Little Board P6d Module
2-29
Audio Interface
The audio interface will be provided by a combination of the 4DWAVE-NX PCI DirectSound
Accelerator, a Rev 2.1 compliant AC97 CODEC and a National LM4863 Audio Amplifier. It
provides an advanced wavetable synthesizer, full legacy compatibility, multiple stereo capture
channels, and is fully plug and play PCI compatible.
Audio Amplifier
The Amplifier is a dual bridge-connected audio power amplifier which will deliver 2.2W to a 4 Ω load
and 1.1W to an 8 Ω load.
Figure 2-4. Little Board P6d Audio Interface Adapter
Audio Interface Connector
The Audio interface is through a 26-pin 2mm connector. Standard input and output devices can be
connected by using the interface shown in Figure 2-4. Little Board P6d Audio Interface Adapter
and Figure 2-5. Audio Interface Adapter Schematic. Table 2-27. Audio Interface Connectors shows
the connector pinout for the Audio Interface Adapter. Table 2-28. Audio Interface Input Connector
(J12) shows the pinout of the Audio interface input connector. Table 2-29 shows manufacturer’s
part numbers for mating connectors.