ak5700 AKM Semiconductor, Inc., ak5700 Datasheet - Page 57

• Manufacturer Part Number: ak5700
• Description: 16-bit ?? Mono Adc With Pll & Mic-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Master clock can be stopped when ADC is not used.
MS0569-E-01
External MCKI
1. PLL Master Mode
2. PLL Slave Mode (EXLRCK, EXBCLK pin)
Stop of Clock
(Addr:11H, D0)
(Addr:11H, D1)
(Addr:16H, D2)
(Addr:11H, D0)
<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 49. Clock Stopping Sequence (1)
Figure 50. Clock Stopping Sequence (2)
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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
[AK5700]
2006/12