ak5702 AKM Semiconductor, Inc., ak5702 Datasheet - Page 72

• Manufacturer Part Number: ak5702
• Description: 4-channel Adc With Pll & Mic-amp
• Manufacturer: AKM Semiconductor, Inc.

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Master clock can be stopped when ADC is not used.
MS0623-E-00
External MCKI
1. PLL Master Mode
2. PLL Slave Mode (LRCK, BCLK pin)
(Addr:01H, D0)
(Addr:01H, D1)
(Addr:06H, D2)
(Addr:01H, D0)
Stop of Clock
<Example>
<Example>
PMPLL bit
PMPLL bit
MCKO bit
M/S bit
LRCK
BCLK
(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 BCLK and LRCK clocks
"H" or "L"
Input
Input
Input
(1)
(1)
(2)
(3)
(2)
(2)
Figure 65. Clock Stopping Sequence (1)
Figure 66. 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: BCLK
BCLK frequency: 64fs
Audio I/F Format: I2S
Sampling Frequency: 44.1kHz
Sampling Frequency: 44.1kHz
(1) Addr:01H, Data:10H
(2) Addr:06H, Data:00H
(3) Stop an external MCKI
(2) Stop the external clocks
(1) Addr:01H, Data:0CH
[AK5702]
2007/06