參數(shù)資料
型號(hào)： AK4538
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類(lèi)： Codec
英文描述： 16Bit DS CODEC with MIC/HP/SPK-AMP
中文描述： 16位副編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁(yè)數(shù)： 59/70頁(yè)
文件大?。?/td> 485K
代理商： AK4538
ASAHI KASEI
[AK4538]
MS0198-E-01
2003/5
- 59 -
CONTOROL SEQUENCE
n
Power up
Upon power-up, bring the PDN pin = “L”. Initialize the internal registers to default values after the PDN pin = “H”. Set the
following registers to establish the initial condition.
Power Supply
PDN pin
PMVCM bit
(Addr:00H, D7)
DIF1-0 bits
(Addr:04H, D1-0)
BF bit
(Addr:04H, D2)
PLL1-0 bits
(Addr:04H, D7-6)
MOUT2 bit
(Addr:02H, D0)
ALCS bit
(Addr:02H, D1)
HPL/R bits
(Addr:03H, D1-0)
DAHS bit
(Addr:03H, D7)
(2)
10
XX
X
XX
00
0
(3)
(4)
(5)
(6)
E xam p le :
A udio I/F Fo rmat : I
2
S
B ICK frequency at Master Mode : 64fs
Input M aster C lock Select at PLL M o de : 11.2896M H z
(1) Power Supply
(2) PDN pin = “L”
→
“H ”
(3) Addr:00H, Data 80H
(4) Addr:02H, Data 03H
(5) Addr:03H, Data 80H
(6) Addr:04H, Data 42H
Figure 47. Power Up Sequence
<Example>
(1) Power Supply
(2) PDN pin = “L”
→
“H”
“L” time of 150ns or more is needed to reset the AK4538.
(3) Power up VCOM : PMVCM bit = “0”
→
“1”
VCOM should first be powered up before the other block operates.
(4) Set up register 02H : MOUT2 bit = ALCS bit = “0”
→
“1”
Set the MOUT2 and ALCS bits to “1” when using the Speaker-amp.
(5) Set up register 03H : HPL bit = HPR bit = “1”
→
“0”, DAHS bit = “0”
→
“1”
(6) Set up register 04H
DIF1-0 bits set the audio interface format.
BF bit sets BICK output frequency in master mode.
PLL1-0 bits set MCLK input frequency in PLL mode.
相關(guān)PDF資料
PDF描述
AK4538VN 16Bit DS CODEC with MIC/HP/SPK-AMP
AK4541VQ AC’97 Rev 2.1 Multimedia Audio CODEC
AK4541 AC’97 Rev 2.1 Multimedia Audio CODEC
AK4543 AC’97 Rev 2.1 Multimedia Audio CODEC
AK4543VQ AC’97 Rev 2.1 Multimedia Audio CODEC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4538VN 制造商:AKM 制造商全稱:AKM 功能描述:16Bit DS CODEC with MIC/HP/SPK-AMP
AK4541 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC
AK4541VQ 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC
AK4543 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC
AK4543VQ 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC
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