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WM9710SEFL/V Datasheet(PDF) 19 Page - Wolfson Microelectronics plc

Part # WM9710SEFL/V
Description  AC97 Audio CODEC and Mixer with Integrated Headphone Driver
PDF  32 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9710SEFL/V Datasheet(HTML) 19 Page - Wolfson Microelectronics plc

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WM9710
Production Data
w
PD Rev 4.0 December 2003
19
SLOT
NUMBER
SYNC
SDATAOUT
SDATAIN
TAG PHASE
TAG
CMD
ADR
CMD
DATA
PCM
LEFT
PCM
RIGHT
RSRVD
RSRVD
RSRVD
TAG
STATUS
ADDR
STATUS
DATA
PCM
LEFT
PCM
RIGHT
RSRVD
RSRVD
RSRVD
RSRVD
RSRVD
RSRVD
RSRVD
DATA PHASE
01
23
4
5
67
89
10
11
12
PCM C
(n+1)
PCM R
(n+1)
PCM L
(n+1)
CODEC ID
SLOTREQ 3-12
RSRVD
RSRVD
RSRVD
RSRVD
RSRVD
RSRVD
Figure 9 AC’97 Standard Bi-Directional Audio Frame
SYNC
BITCLK
SDATAOUT
VALID
FRAME
SLOT(1)
SLOT(2)
SLOT(12)
'0'
'0'
'0'
19
0
19
0
19
0
19
0
TAG PHASE
DATA PHASE
20.8
µS (48kHz)
12.288MHz
81.4nS
END OF PREVIOUS
AUDIO FRAME
TIME SLOT 'VALID' BITS
('1' = TIME SLOT CONTAINS
VALID PCM DATA)
SLOT (1)
SLOT (2)
SLOT (3)
SLOT (12)
Figure 10 AC-link Audio Output Frame
The datastreams currently defined by the AC’97 specification include:
PCM playback - 2 output slots
2-channel composite PCM output stream
PCM record data - 2 input slots
2-channel composite PCM input stream
Control - 2 output slots
Control Register write port
Status - 2 input slots
Control Register read port
Optional modem line codec output -
1 output slot
Modem line codec DAC input stream
Optional modem line codec input –
1 input slot
Modem line codec ADC output stream
Optional dedicated microphone input -
1 input slot
Dedicated microphone input stream in
support of stereo AEC and/or other voice
applications.



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