AK5702VN AKM [Asahi Kasei Microsystems], AK5702VN Datasheet - Page 34

• Manufacturer Part Number: AK5702VN
• Description: 4-Channel ADC with PLL & MIC-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

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The AK5702 supports cascading of up to two devices in a daisy chain configuration at TDM mode. In this mode, SDTOB
pin of device #1 is connected to TDMIN pin of device #2. SDTOB pin of device #2 can output 8ch TDM data multiplexed
with 4ch TDM data of device #1 and 4ch TDM data of device #2. Figure 35 and Figure 37 show a connection example of
a daisy chain.
MS0623-E-00
Cascade TDM Mode
LRCK
BCLK(128fs)
#1 SDTOB(o)
#2 TDMIN(i)
#2 SDTOB(o)
Figure 35. Cascade TDM Connection example (TDM128, MSB justified)
15
15
15
AK5702 #1
AK5702 #2
16 BCLK
16 BCLK
16 BCLK
14
14
14
L1-#2
L1
L1
Figure 36. Cascade TDM128 Timing example
0
0
0
15
15
15
16 BCLK
16 BCLK
16 BCLK
14
14
14
R1-#2
R1
R1
0
0
0
SDTOA
SDTOB
SDTOA
SDTOB
TDMIN
TDMIN
15
15
15
MCLK
MCLK
LRCK
LRCK
16 BCLK
16 BCLK
16 BCLK
BLCK
BLCK
14
14
14
L2-#2
L2
L2
0
0
0
15
15
15
- 34 -
16 BCLK
16 BCLK
16 BCLK
R2-#2
14
14
14
R2
R2
GND
128 BCLK
0
0
0
15
16 BCLK
14
L1-#1
0
15
16 BCLK
14
R1-#1
8ch TDM
256fs
48kHz
128fs
0
15
16 BCLK
14
L2-#1
0
15
16 BCLK
14
R2-#1
0
[AK5702]
2007/06