2 System Board
Devices on the ISA Bus
Audio Controller
The HP Kayak XA PC Workstation has an audio chip (AD1816) integrated on the system board. This single chip is a Plug and Play multimedia audio subsystem for concurrently processing multiple digital streams of
Host Interface | The AD1816 audio chip contains all necessary ISA bus logic on chip. This |
| logic includes address decoding for all onboards resources, control and signal |
| interpretation, DMA selection and control logic, IRQ selection and control |
| logic, and all interface configuration logic. |
Audio Chip | It is driven from the ISA bus, and has the following specification: |
Specifications
Feature: | Description: | |
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| |
Digitized Sounds | • | |
| • Programmable sample rates with 1 Hz resolution | |
| • Hardware Full Duplex Conversion | |
| • | |
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| decompression system |
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| |
Music Synthesizer | • Integrated OPL3 compatible music synthesizer | |
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Mixer | • AC’97 and | |
| • Input mixing sources: microphone, LINE In, | |
|
| CD Audio, AUX Audio, and digitized sounds |
| • Output mixing of all audio sources to the LINE Out or | |
|
| integrated PC Workstation speaker |
| • Multiple source recording and Left/Right channels | |
|
| swapping or mixing |
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| |
Line Input | • Input impedance: 15 kohms | |
| • Input range: 0 to 2 Vpp | |
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Line Output | • Stereo output of 5 mW per channel with headphone | |
|
| speakers (impedance >600 ohms) |
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Audio Front Panel | • | Microphone input jack |
| • | Stereo output jack |
| • Master volume control potentiometer | |
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