ak4534 AKM Semiconductor, Inc., ak4534 Datasheet - Page 61

• Manufacturer Part Number: ak4534
• Description: 16bit Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
n Stop of Clock
MCLK can be stopped when PMMIC=PMADC=PMDAC=PMSPK= “0”.
MS0133-E-03
External MCLK
1. When X’tal is used in PLL mode
<Example>
2. When an external clock is used in PLL mode
<Example>
(Addr:03H, D4)
(Addr:01H, D6)
(Addr:01H, D5)
(Addr:01H, D7)
(Addr:03H, D4)
(Addr:01H, D5)
(Addr:01H, D7)
MCKPD bit
MCKPD bit
PMXTL bit
PMPLL bit
PMPLL bit
MCKO bit
MCKO bit
(1) Disable MCKO output : MCKO bit = “1”
(2) Power down X’tal and PLL, Pull down the XTI pin :
(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)
(1)
(2)
(2)
PMXTL bit = PMPLL bit = “1”
(3)
Figure 41. Stop of Clock Sequence(1)
Figure 42. Stop of Clock Sequence(2)
“0”
“0”
- 61 -
“0”, MCKPD = “0”
“0”, MCKPD = “0”
E x a m p le :
E x a m p le :
A u d io I/F Form at : 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
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
( 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
2
S
2
S
“1”
“1”
[AK4534]
2003/5