ak5702 AKM Semiconductor, Inc., ak5702 Datasheet - Page 25

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

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When an external clock (11.2896MHz, 12MHz, 12.288MHz, 13MHz, 13.5MHz, 19.2MHz, 24MHz, 26MHz or 27MHz)
is input to MCKI pin, the MCKO, BCLK and LRCK clocks are generated by an internal PLL circuit. The MCKO output
frequency is selected by PS1-0 bits (Table 9) and the output is enabled by MCKO bit. The BCLK output frequency is
selected among 32fs or 64fs, by BCKO1-0 bits (Table 10).
MS0623-E-00
PLL Master Mode (PMPLL bit = “1”, M/S bit = “1”)
Mode
Table 9. MCKO Output Frequency (PLL Mode, MCKO bit = “1”)
0
1
2
3
BCKO1 bit
AK5702
0
0
1
1
Table 10. BCLK Output Frequency at Master Mode
MCKI
MCKO
BCLK
LRCK
SDTOA/B
PS1 bit
0
0
1
1
BCKO0 bit
Figure 20. PLL Master Mode
0
1
0
1
256fs/128fs/64fs/32fs
32fs, 64fs
PS0 bit
1fs
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11.2896MHz, 12MHz, 12.288MHz, 13MHz
13.5MHz, 19.2MHz, 24MHz, 26MHz, 27MHz
0
1
0
1
BCLK Output
Frequency
N/A
32fs
64fs
N/A
MCKO pin
MCLK
BCLK
LRCK
SDTI
256fs
128fs
64fs
32fs
DSP or μP
(default)
(default)
[AK5702]
2007/06