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AK4528 参数 Datasheet PDF下载

AK4528图片预览
型号: AK4528
PDF下载: 下载PDF文件 查看货源
内容描述: 高性能的24Bit 96kHz的音频编解码器 [HIGH PERFORMANCE 24BIT 96KHZ AUDIO CODEC]
分类和应用: 解码器编解码器
文件页数/大小: 29 页 / 285 K
品牌: AKM [ ASAHI KASEI MICROSYSTEMS ]
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ASAHI KASEI  
[AK4528]  
OPERATION OVERVIEW  
n System Clock Input  
The external clocks, which are required to AK4528, are MCLK, BICK and LRCK. MCLK should be synchronized with  
LRCK but the phase is not critical. The frequency of MCLK is set by CMODE, CKS0-1 and DFS bits in serial mode, or by  
CKS0-1, DFS pins in parallel mode (see Table 2 and 3). The CKS0-1 and DFS pin should be changed during the PDN pin  
= “L”. The CMODE, CKS0-1 and DFS bits are changed during RSTADN=RSTDAN= “0”.  
External clocks (MCLK, BICK and LRCK) should always be present whenever the AK4528 is in normal operation mode  
(PDN=”H” and at least one of ADC and DAC is in normal operation mode). If these clocks are not provided, the AK4528  
may draw excess current because the device utilizes dynamic refreshed logic internally. If the external clocks are not  
present, the AK4528 should be in the power-down mode (PDN=”L” or set both ADC and DAC power down mode by the  
register).  
MCLK  
MCLK  
CMODE bit CKS1 bit CKS0 bit  
Normal Speed  
(DFS bit=”0”)  
Double Speed  
(DFS bit=”1”)  
Default  
0
0
0
1
1
0
0
1
0
0
0
1
0
0
1
256fs  
512fs  
1024fs  
384fs  
768fs  
N/A  
256fs  
512fs  
N/A  
384fs  
Table 1. Master Clock Frequency Select in Serial Mode  
MCLK  
MCLK  
CKS1 pin CKS0 pin  
Normal Speed  
(DFS pin = “L”)  
Double Speed  
(DFS pin = “H”)  
L
L
L
H
L
256fs  
512fs  
384fs  
1024fs  
N/A  
256fs  
N/A  
H
H
H
512fs  
Table 2. Master Clock Frequency Select in Parallel Mode  
MCLK  
MCLK  
fs=44.1kHz  
fs=48kHz  
fs=88.2kHz  
fs=96kHz  
Normal Speed  
Double Speed  
(DFS = “0”)  
256fs  
(DFS = “1”)  
N/A  
11.2896MHz 12.288MHz  
22.5792MHz 24.576MHz  
45.1584MHz 49.152MHz  
16.9344MHz 18.432MHz  
33.8688MHz 36.864MHz  
N/A  
N/A  
512fs  
1024fs  
384fs  
256fs  
512fs  
N/A  
384fs  
22.5792MHz  
45.1584MHz  
N/A  
24.576MHz  
49.152MHz  
N/A  
768fs  
33.8688MHz  
36.864MHz  
Table 3. Master Clock Frequencies example  
Note. Do not set any mode which is not described in Table1-3.  
MS0011-E-00  
2000/1  
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