ak4538 AKM Semiconductor, Inc., ak4538 Datasheet - Page 68
![no-image](/images/no-image-200.jpg)
ak4538
Manufacturer Part Number
ak4538
Description
16bit ?? Codec With Mic/hp/spk-amp
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK4538.pdf
(70 pages)
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Manufacturer:
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ASAHI KASEI
n Power down
Power down VCOM(PMVCM= “1”
AK4538 is also powered-down by PDN pin = “L”. When PDN pin = “L”, the registers are initialized.
MS0198-E-01
External MCLK
<Example>
(Addr:03H, D4)
(Addr:01H, D5)
(Addr:01H, D7)
MCKPD bit
PMPLL bit
MCKO bit
(1) Stop MCKO output : MCKO bit = “1”
(2) Power down PLL, Pull down the XTI pin : PMPLL bit = “1”
(3) Stop an external MCLK
When the external MCLK becomes Hi-Z or the external MCLK is input by AC couple, MCKI pin should be
pulled down.
Input
(1)
(2)
(3)
“0”) after all blocks except VCOM are powered down and MCLK stops. The
Figure 58. Stop of Clock Sequence(3)
“0”
- 68 -
“0”, MCKPD = “0”
E x a m p le :
A u d io I/F : I
B I C K f r e q u e n c y a t M a s t e r M o d e : 6 4 f s
I n p u t M a s t e r C l o c k S e l e c t a t P L L M o d e : 1 1 . 2 8 9 6 M H z
O u t p u t M a s t e r C l o c k F r e q u e n c y : 6 4 f s
( 1 ) A d d r : 0 4 H , D a t a : 6 2 H
( 2 ) A d d r : 0 1 H , D a t a : 8 0 H
( 3 ) S t o p e x t e r n a l c l o c k
2
S
“1”
[AK4538]
2003/5
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