AK5702VN AKM [Asahi Kasei Microsystems], AK5702VN Datasheet - Page 28
AK5702VN
Manufacturer Part Number
AK5702VN
Description
4-Channel ADC with PLL & MIC-AMP
Manufacturer
AKM [Asahi Kasei Microsystems]
Datasheet
1.AK5702VN.pdf
(76 pages)
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Part Number
Manufacturer
Quantity
Price
Part Number:
AK5702VN-L
Manufacturer:
AKM
Quantity:
20 000
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The AK5702 becomes EXT Master Mode by setting as Figure 63. Master clock is input from MCKI pin, the internal PLL
circuit is not operated. The clock required to operate is MCKI (256fs, 512fs or 1024fs). The input frequency of MCKI is
selected by FS3-0 bits (Table 12).
MCKI should always be present whenever the ADC is in operation (PMADAL bit = “1” or PMADAR bit = “1” or
PMADBL bit = “1” or PMADBR bit = “1”). If MCKI is not provided, the AK5702 may draw excess current and it is not
possible to operate properly because utilizes dynamic refreshed logic internally. If MCKI is not present, the ADC should
be in the power-down mode (PMADAL= PMADAR = PMADBL = PMADBR bits = “0”).
MS0623-E-00
EXT Master Mode (PMPLL bit = “0”, M/S bit = “1”, TE3-0 bits = “0101”, TMASTER bit = “1”)
Mode
0
1
2
3
4
FS3-2 bits
00, 01, 11
00, 01, 11
00, 01, 11
00, 01, 11
10
BCKO1 bit
AK5702
Don’t care
0
0
1
1
Table 13. BCLK Output Frequency at Master Mode
FS1 bit
Table 12. MCKI Frequency at EXT Master Mode
0
0
1
1
MCKO
MCKI
BCLK
LRCK
SDTOA/B
BCKO0 bit
Figure 24. EXT Master Mode
Don’t care
FS0 bit
0
1
0
1
256fs, 512fs or 1024fs
0
1
0
1
32fs or 64fs
- 28 -
1fs
MCKI Input
BCLK Output
Frequency
Frequency
1024fs
256fs
512fs
256fs
N/A
N/A
32fs
64fs
N/A
MCLK
BCLK
LRCK
SDTI
DSP or μP
Sampling Frequency
7.35kHz ∼ 48kHz
7.35kHz ∼ 13kHz
7.35kHz ∼ 26kHz
7.35kHz ∼ 48kHz
(default)
Range
-
(default)
[AK5702]
2007/06
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