ak5702 AKM Semiconductor, Inc., ak5702 Datasheet - Page 47

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

■
Figure 47 shows the 4ch Link ALC Mode sequence at ALCA bit = ALCB bit = “0”
ADCA Operation Power Down
ADCB Operation
(1) ADCA is powered up by PMADAL bit or PMADAR bit is changed from “0” to “1”.
(2) ADCB is powered up by PMADBL bit or PMADBR bit is changed from “0” to “1”.
(3) Both ADCA and ADCB start 4ch Link ALC by ALC4 bit is changed from “0” to “1” at once. At this point the start
(4) When ALC4 bit = “1”, ALCA bit and ALCB bit becomes invalid. But ALC4 bit should be “0”, when it is changed.
(5) When ALC4 bit = “1” → “0”, ADCA and ADCB become Manual Mode. 2ch link mode can be also set without
(6) ADCB is powered down by setting PMADBL bit or PMADBR bit “0”.
(7) ADCA is powered down by setting PMADAL bit or PMADAR bit “0”.
MS0623-E-00
ALC4 bit
PMADAL or
PMADAR bit
PMADBL or
PMADBR bit
ALCA bit
ALCB bit
ALC 4ch Link Mode sequence
value of ALC becomes Lch of ADCA (IVAL7-0 bits).
power down operation by setting ALCA and ALCB bits = “1”.
Power Down
(1)
(2)
Manual Mode
Manual Mode
Figure 45. 4ch Link ALC Mode sequence
(3)
(4)
(4)
- 47 -
4ch Link ALC
4ch Link ALC
(5)
(4)
(4)
Manual Mode
Manual Mode
(6)
(7)
Power Down
Power Down
[AK5702]
2007/06