CS4281-CQ Просмотр технического описания (PDF) - Cirrus Logic

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CS4281-CQ

CrystalClear™ PCI Audio Interface

Cirrus Logic 

CS4281

CrystalClear™ PCI Audio Interface

The dual codec architecture of AC ‘97, version 2.1, is supported wherein the second codec uses the same

pins from the primary, with the exception of a separate serial data-in line (ASDIN2) illustrated in

Figure 10. The Primary Codec is the timing master for the digital audio link and the CS4281. The ASD-

OUT output supports data transmission on nine of the output sample slots (output slots 3 - 11). The ASDIN

and ASDIN2 inputs support receiving of audio sample data on nine of the input sample slots (input slots

3 - 11).

ABITCLK

ASYNC

ASDOUT

ASDIN

ARST#

CS4281

ASDIN2

12.288 MHz

48 kHz

24.576 MHz

BIT_CLK

SYNC

SDATA_OUT

SDATA_IN

RESET#

CS4297/97A

BIT_CLK

SYNC

SDATA_OUT

RESET#

SDATA_IN

MIDIIN

MIDIOUT

JACX, JACY, JBCX, JBCY

JAB1, JAB2, JBB1, JBB2

CS4297A

(AC ’97 2.0)

Joystick/

MIDI Port

Figure 10. Dual AC ‘97 Codec Connection Diagram

CIRRUS LOGIC PRODUCT DATA SHEET

DS308PP4

21

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