ak4642e AKM Semiconductor, Inc., ak4642e Datasheet - Page 46

• Manufacturer Part Number: ak4642e
• Description: Stereo Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
[Stereo Line Output Control Sequence (in case of using Pop Reduction Circuit)]
MS0420-E-00
(1) Set LOPS bit = “1”. Stereo line output enters the power-save mode.
(2) Set PMLO bit = “1”. Stereo line output exits the power-down mode.
(3) Set LOPS bit = “0” after LOUT and ROUT pins rise up. Stereo line output exits the power-save mode.
(4) Set LOPS bit = “1”. Stereo line output enters power-save mode.
(5) Set PMLO bit = “1”. Stereo line output enters power-down mode.
(6) Set LOPS bit = “0” after LOUT and ROUT pins fall down. Stereo line output exits the power-save mode.
P M L O b it
L O P S b it
L O U T , R O U T p in s
LOUT and ROUT pins rise up to VCOM voltage. Rise time is 200ms (max 300ms) at C=1µF.
Stereo line output is enabled.
LOUT and ROUT pins fall down to AVSS. Fall time is 200ms (max 300ms) at C=1µF.
Figure 30. Stereo Line Output Control Sequence (in case of using Pop Reduction Circuit)
( 1 )
( 2 )
≥ 3 0 0 m s
( 3 )
N o r m a l O u tp u t
- 46 -
( 4 )
( 5 )
≥ 3 0 0 m s
( 6 )
[AK4642EN]
2005/09