- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361881 > WM9703 (Wolfson Microelectronics) TVS UNIDIRECT 400W 22V SMA PDF資料下載
參數(shù)資料
| 型號： | WM9703 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | TVS UNIDIRECT 400W 22V SMA |
| 中文描述： | AC97音頻編解碼器2.1版 |
| 文件頁數(shù)： | 15/30頁 |
| 文件大?。?/td> | 239K |
| 代理商： | WM9703 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當(dāng)前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
Production Data
CONTROL INTERFACE
WM9703
WOLFSON MICROELECTRONICS LTD
PD Rev 3.4 January 2001
15
A digital interface has been provided to control the WM9703 and transfer data to and from it. This
serial interface is compatible with the Intel AC
’
97.
The main control interface functions are:
Control of analogue gain and signal paths through the mixer
Bi-directional transfer of ADC and DAC words to and from AC
’
97 controller
Selection of powerdown modes
AC-LINK DIGITAL SERIAL INTERFACE PROTOCOL
The WM9703 incorporates a 5-pin digital serial interface that links it to the AC
’
97 controller. AC-link
is a bi-directional, fixed rate, serial PCM digital stream. It handles multiple input and output audio
streams, as well as control register accesses employing a time division multiplexed (TDM) scheme.
The AC-link architecture divides each audio frame into 12 outgoing and 12 incoming data streams,
each with 20-bit sample resolution. With a minimum required DAC and ADC resolution of 16-bits,
AC
’
97 may also be implemented with 18 or 20-bit DAC/ADC resolution, given the headroom that the
AC-link architecture provides. The WM9703 provides support for 18-bit operation.
SLOT
NUMBER
SYNC
SDATA_OUT
SDATA_IN
TAG PHASE
TAG
CMD
ADR
CMD
DATA
PCM
LEFT
PCM
RIGHT
RSRVD
PCM
LFE
RSRVD
RSRVD
TAG
STATUS
ADDR
STATUS
DATA
PCM
LEFT
PCM
RIGHT
RSRVD
RSRVD
RSRVD
RSRVD
RSRVD
RSRVD
RSRVD
RSRVD
DATA PHASE
0
1
2
3
4
5
6
7
8
9
10
11
12
PCM
CENTRE
PCM
L SURR
PCM
R SURR
RSRVD
PCM C
(n+1)
PCM R
(n+1)
PCM L
(n+1)
CODEC ID
SLOTREQ 3-12
Figure 12 AC
’
97 Standard Bi-directional Audio Frame
SYNC
BIT_CLK
SDATA_OUT
VALID
FRAME
SLOT(1)
SLOT(2)
SLOT(12)
’
0
’
(ID1)
(ID0)
19
0
19
0
19
0
19
0
TAG PHASE
DATA PHASE
20.8
μ
S (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 13 AC-link Audio Output Frame
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| WM9712L | AC97 Audio and Touchpanel CODEC |
| WM9712LEFL | AC97 Audio and Touchpanel CODEC |
| WM9712LEFT | AC97 Audio and Touchpanel CODEC |
| WM9712LEFV | AC97 Audio and Touchpanel CODEC |
| WM9712LSEFL | AC97 Audio and Touchpanel CODEC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WM9703CFT/V | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Revision 2.1 Audio Codec |
| WM9704CFT/V | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:4-Channel Surround Sound Codec |
| WM9704M | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AMC97 Audio and Modem Codec |
| WM9704Q | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:4-Channel Surround Sound Codec |
| WM9705 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Multimedia AC97 CODEC with Integrated Touch Screen Controller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。