BU7858KN_10 Datasheet, PDF (20/25 Pages) Rohm – Mixer & Selector ICs with 16bit D/A Converter

BU7858KN,BU7893GU
●Recommended sequence
【BU7858KN】
Mode setting Flow
Power Supply ON
Reference Voltage ON
(VCOM=1)
Input Path Setting
Mixing Path Setting
Analog Power ON
(PDN=1)
PLL Setting
(PLLPDN=1)
(Using PLL)
DAC Setting
(Using DAC)
*1
*1
DAC MUTE OFF
(Using DAC)
HPAMP RESET Lifting
(Using HPAMP)
Technical Note
Power Supply OFF
Stand-by mode
RESET
NRST=0 or
PLLPDN=0, VCOM=0
HPAMP RESET
*2
(HPRST=0)
Analog Power OFF
(PDN=0)
PLL OFF
(PLLPDN=0)
(Using PLL)
DAC MUTE ON
(Using DAC)
HPAMP MUTE ON
(Using HPAMP)
Play
*1 : When the analog path setting is not changed (Repeated play)
*2 : When the power supply OFF, after playing
Fig.38 BU7858KN Recommended Sequence Flow Chart
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20/24
2010.09 - Rev.A