ak4632 AKM Semiconductor, Inc., ak4632 Datasheet - Page 24
ak4632
Manufacturer Part Number
ak4632
Description
16-bit ?? Mono Codec With Alc & Mic/spk/video-amp
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK4632.pdf
(70 pages)
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ASAHI KASEI
When an external clock (11.2896MHz, 12MHz , 12.288MHz, 13.5MHz, 24MHz or 27MHz) is input to MCKI pin, the
MCKO, BICK and FCK clocks are generated by an internal PLL circuit. The MCKO output frequency is fixed to 256fs,
the output is enabled by MCKO bit. The BICK is selected among 16fs, 32fs or 64fs, by BCKO1-0 bits. (See Table 9)
When BICK output frequency is 16fs, the audio interface format supports only Mode 0 (DSP Mode).
MS0396-E-00
PLL Master Mode (PMPLL bit = “1”, M/S bit = “1”)
Mode
0
1
2
3
AK4632
Table 9. BICK Output Frequency at Master Mode
BCKO1
MCKI
MCKO
BICK
FCK
SDTO
SDTI
0
0
1
1
Figure 19. PLL Master Mode
16fs, 32fs, 64fs
BCKO0
256fs
0
1
0
1
1fs
- 24 -
11.2896MHz, 12MHz, 12.288MHz
13.5MHz, 24MHz, 27MHz
BICK Output
Frequency
MCLK
BCLK
FCK
SDTI
SDTO
16fs
32fs
64fs
N/A
DSP or µ P
Default
[AK4632]
2005/06
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