參數(shù)資料
型號: AK4538VN
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: 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/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù): 68/70頁
文件大小: 485K
代理商: AK4538VN
ASAHI KASEI
[AK4538]
MS0198-E-01
2003/5
- 68 -
MCKPD bit
(Addr:01H, D7)
External MCLK
PMPLL bit
(Addr:01H, D5)
MCKO bit
(Addr:03H, D4)
Input
(1)
(2)
(3)
Example :
2
S
Audio I/F : I
Input Master Clock Select at PLL Mode : 11.2896MHz
Output Master Clock Frequency : 64fs
(1) Addr:04H, Data:62H
(2) Addr:01H, Data:80H
(3) Stop external clock
Figure 58. Stop of Clock Sequence(3)
<Example>
(1) Stop MCKO output : MCKO bit = “1”
“0”
(2) Power down PLL, Pull down the XTI pin : PMPLL bit = “1”
“0”, MCKPD = “0”
“1”
When the external MCLK becomes Hi-Z or the external MCLK is input by AC couple, MCKI pin should be
pulled down.
(3) Stop an external MCLK
n
Power down
Power down VCOM(PMVCM= “1”
“0”) after all blocks except VCOM are powered down and MCLK stops. The
AK4538 is also powered-down by PDN pin = “L”. When PDN pin = “L”, the registers are initialized.
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