參數(shù)資料
型號： AK4543
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： AC’97 Rev 2.1 Multimedia Audio CODEC
中文描述： AC\u0026#39;97音效活2.1多媒體音頻編解碼器
文件頁數(shù)： 20/31頁
文件大?。?/td> 385K
代理商： AK4543
[ASAHI KASEI]
[AK4543]
<M0046-E-01>
1999/01
- 20 -
n
Powerdown Control/Status Register (Index 26h)
BitsD0 to D3 are read only status bits. Any write to these bits will not affect the operation of the AK4543. These
bits are used as status bits to subsections of the AC97 codec. A 1 indicates the subsection of the AK4543 is
ready or that is capable of performing in normal operation.
Bit
D3
Function
REF
Vref up to nominal state
0=NOT ready, 1=ready,
Analog mixers, etc ready
0=NOT ready, 1=ready
DAC section ready to accept data
0=NOT ready, 1=ready
ADC section ready to transmit data
0=NOT ready, 1=ready
ANL
D2
DAC
D1
ADC
D0
The power down modes are as follows.
Bit
D8
D9
D10
D11
D12
D13
D14
D15
Function
PR0
PR1
PR2
PR3
PR4
PR5
PR6
PR7
PCM in ADCs & Input Mux Powerdown
PCM out DACs Powerdown
Analog Mixer Powerdown (Vref still on)
Analog Mixer Powerdown (Vref off)
Digital Interface (AC-link) Powerdown
Internal Clk disable
True Line Level Out Powerdown
EAPD(External Amplifier Powerdown)
When PR3 is set to 1, the ADC, DAC, Mixer, True Line Level Out, and VREF are powered down even if any PRx
bit are 0. When PR3 bit is reset to 0, the AK4543 resumes the previous state by referencing previous PRx bit. In
this case, the AK4543 outputs corresponding slot-x valid bits in the slot 0 as 0 until the AK4543 results in normal
operation(Codec Ready).
EAPD(External Amplifier Power Down) bit controls an external audio amplifier. EAPD=0 places a 0(L) on the
output pin, enabling an external audio amplifier, EAPD=1(H) shuts it down. Powered up default is
EAPD=0(external audio amplifier enabled).
n
Extended Audio ID(Index 28h)
The Extended Audio ID(28h) is a read only register. 2bits D15&D14 can be read for codec identification. D15 ,14
are automatically set with the codec ID1#(46pin) and ID0#(45pin). ID1# and ID0# can be strapped and adopt
inverted polarity and default to 00=Primary(via internal pull up) when left floating. Depended on codec ID
configuration, the AK4543 is assigned to Primary codec or Secondary codec. Note that codec ID configuration has to
be fixed before Powering up of the device.
ID1#(pin 46)
Physical
Connection
NC
NC
GND
GND
ID0#(pin45)
Physical
Connection
NC
GND
NC
GND
Logic
Value
0
0
1
1
Logic
Value
0
1
0
1
Configuration
(Codec ID)
Primary ID00
Secondary ID01
Secondary ID10
Secondary ID11
The AMAP (bit D9 of this read only register) will always be set to 1 indicating that DAC input slot will follow to
AC97 recommendation as shown in next table.(CODEC ID is configured via ID1#m ID0# pins)
The audio DAC mapping can be changed based on the codec ID configuration.
AC-link Frame Data used for DACs
PCM Left DAC uses
data from Slot#
3
3
7
6
Codec ID
PCM Right DAC
uses data from Slot#
4
4
8
9
Comments
Expected use
Original Definition(Master)
Original Definition(Docking)
Left/Right surround channels
Center/LFE channels
00
01
10
11
相關(guān)PDF資料
PDF描述
AK4543VQ AC’97 Rev 2.1 Multimedia Audio CODEC
AK4544A AC97 MULTIMEDIA AUDIO CODEC WITH SRC
AK4544AVQ CABLE ASSEMBLY; BNC MALE TO N MALE; 50 OHM, RG223/U COAX, DOUBLE SHIELDED; 36" CABLE LENGTH
AK4544 AC97 MULTIMEDIA AUDIO CODEC WITH SRC
AK4545 AC97 AUDIO CODEC WITH SRC AND DIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4543VQ 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC
AK4544 制造商:AKM 制造商全稱:AKM 功能描述:AC97 MULTIMEDIA AUDIO CODEC WITH SRC
AK4544A 制造商:AKM 制造商全稱:AKM 功能描述:AC97 MULTIMEDIA AUDIO CODEC WITH SRC
AK4544AVQ 制造商:AKM 制造商全稱:AKM 功能描述:AC97 MULTIMEDIA AUDIO CODEC WITH SRC
AK4545 制造商:AKM 制造商全稱:AKM 功能描述:AC97 AUDIO CODEC WITH SRC AND DIT
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*