CS4630-CM Ver la hoja de datos (PDF) - Cirrus Logic
Número de pieza
componentes Descripción
Lista de partido
CS4630-CM Datasheet PDF : 38 Pages
| |||
CS4630
3. SYSTEM ARCHITECTURES
A typical system diagram depicting connection of
the CS4630 to the CrystalClear CS4297/97A/98/99
AC ’97 Codec is given in Figure 8. All analog au-
dio inputs and outputs are connected to the
CS4297/97A/98/99. Audio data is passed between
the CS4297/97A/98/99 and the CS4630 over the
serial AC-Link. The CS4630 provides a hardware
interface for connection of a joystick and MIDI de-
vices. A second diagram, Figure 9, depicts the
CS4630 supporting dual AC ‘97 codecs in a porta-
ble design. The AC ‘97 interface is connected to the
primary AC ‘97 codec in the portable and is used
for all audio I/O inside and connected to the porta-
ble. The AC ‘97 interface is sent across to the dock-
ing station which contains a second AC ‘97 2.0/2.1
codec, used when the portable is in the docking sta-
tion. Software can disable the audio I/O paths on
the portable that are superseded by docking station
I/O and enable the paths needed in the docking sta-
tion. Note that both interfaces are needed in sys-
tems where the CD-ROM analog input is in the
portable and the Line In/Out jacks on the docking
stations are used. Using the AC ‘97 digital link
across the dock maintains the absolute highest au-
dio quality along with a standard well-defined non-
proprietary interface that will last through many
system generations.
CPU
North
Bridge
PCI Bus
Host
Memory
South
Bridge
CS4630
PC/PCI (if used)
CS4297
Audio Out
Audio In
Figure 8. AC ‘97 Codec Interface
PORTABLE
CPU
North
Bridge
PCI Bus
Host
Memory
DOCKING STATION
Secondary PCI Bus
South
Bridge
Card Bus
Interface
Audio
Accelerator
CS4630
PC/PCI
(if used)
ZV Port
Bridge
Pri. AC ’97
Codec
Audio
Out
Audio
In
Sec. AC ’97 Audio Out
Codec
Audio In
Figure 9. Portable Docking Station Scenario
14
DS445PP1
Share Link: 