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J1 USB1
J2 USB2
J3 Microphone IN
J4 Line IN
J5 Speaker OUT
J6 Line OUT
J7 CD IN
J8 Aux IN
J9 Video IN
J10 Speakerphone
IN/OUT
J11 To CPU Board
Connector (J4)
This adapter is composed of 2 functional sections:
¾ USB section, with 2 USB ports which are EMI protected and filtered, and can also supply
power to the peripheral device connected (5V, 500mA);
¾ Audio section, which is equipped with the LM4549 National, an AC97 compliant I.C.
The AC97 architecture separates the analog and digital functions of the PC audio system
allowing both for system design flexibility and increased performance.
The LM4549 is an Audio CODEC for PC systems, which is fully PC98
compliant and performs the analog intensive functions of the AC97 Rev2.1 architecture.
Using 18-bit Sigma-Delta A/D’s and D/A’s, the LM4549 provides 90dB of Dynamic Range.
This board, in its Audio Section, is
provided with 4 stereo inputs, 1 microphone input, 1 stereo line input, 1 stereo earphone
output (200mW) and 1 speakerphone Input/Output that can be connected to a
telephone/modem set.
The SpacePC 1232 module provides an interface for one or two Integrated Device Electronics
(IDE) devices.
J9 IDE Connector
J9 is a 22x2 pin connector with 2.0 mm step.