AK5388_09 Datasheet, PDF (23/31 Pages) Asahi Kasei Microsystems – 120dB 24-bit 192kHz 4-Channel ADC

Parameter
MCLK “↑” to BICK “↓”
BICK “↓” to MCLK“↑”
Symbol
min
typ
tMCB
10
tBIM
10
Table 6 TDM Mode Clock Timing
[AK5388]
max
Units
ns
ns
VI H
MCLK
VI L
tMCB tBIM
BICK
VIH
VIL
Figure 19. Audio Interface timing (Slave mode, TDM0 Mode MCLK=2 x BICK)
VI H
MCLK
VI L
tMCB
tBIM
BICK
VIH
VIL
Figure 20. Audio Interface Timing (Slave mode, TDM0 Mode MCLK=BICK)
■ Mono mode
When the MONO pin is set to “H”, the AK5388 is in Mono mode. In this mode, dynamic range and S/N can be improved
by approximately 3dB when the same analog signal is inputted to LIN1 and RIN1, LIN2 and RIN2. The LIN1 and RIN1
data are summed and the amplitude is attenuated into half to be output from the SDTO1 pin. The LIN2 and RIN2 data are
summed and the amplitude is attenuated into half to be output from the SDTO2 pin.
MONO pin
SDTO1/2 Output Data
L
Stereo Mode
H
Mono Mode
Table 7. Setup of MONO mode
MS1096-E-01
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2009/08