ak5701 AKM Semiconductor, Inc., ak5701 Datasheet - Page 58
ak5701
Manufacturer Part Number
ak5701
Description
16-bit ?? Stereo Adc With Pll & Mic-amp
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK5701.pdf
(64 pages)
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Master clock can be stopped when ADC is not used.
MS0404-E-02
External MCKI
1. PLL Master Mode
2. PLL Slave Mode (EXLRCK, EXBCLK pin)
(Addr:11H, D0)
(Addr:11H, D1)
(Addr:16H, D2)
(Addr:11H, D0)
Stop of Clock
<Example>
<Example>
PMPLL bit
PMPLL bit
MCKO bit
EXLRCK
EXBCLK
M/S bit
* Clock stop sequence is the same for Slave&Bypass Mode.
(1) Power down PLL: PMPLL=M/S bits = “1” → “0”
(2) Stop MCKO clock: MCKO bit = “1” → “0”
(3) Stop an external master clock.
(1) Power down PLL: PMPLL bit = “1” → “0”
(2) Stop the external EXBCLK and EXLRCK clocks
"H" or "L"
Input
Input
Input
(1)
(1)
(2)
(3)
(2)
(2)
Figure 53. Clock Stopping Sequence (1)
Figure 54. Clock Stopping Sequence (2)
- 58 -
Example:
Example
BCLK frequency at Master Mode: 64fs
Input Master Clock Select at PLL Mode: 11.2896MHz
Audio I/F Format : I2S
PLL Reference clock: EXBCLK
BCLK frequency: 64fs
Audio I/F Format: I2S
Sampling Frequency: 44.1kHz
Sampling Frequency: 44.1kHz
(1) Addr:11H, Data:10H
(2) Addr:16H, Data:00H
(3) Stop an external MCKI
(2) Stop the external clocks
(1) Addr:11H, Data:0CH
[AK5701]
2007/08