AK4650 Datasheet, PDF(50/86 Page) Asahi Kasei Microsystems – 16Bit ΔΣ CODEC with MIC/HP/SPK-AMP & TSC

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

AK4650 Datasheet, PDF (50/86 Pages) Asahi Kasei Microsystems – 16Bit ΔΣ CODEC with MIC/HP/SPK-AMP & TSC

◁

â Sequence from AC-Link Power-up to Headphone Output

[AK4650]

TSC Touch

IN T N

S D A T A _IN

S YN C

C rys ta l O c ila to r

M in :2 0 m s

B IT C LK

V R A bit(P L L)

T im e r m in :2 5 m s

PLL

m in :2 0 m s

P R 1 b it(D A C )

V R A bit(P L L)

P R 6 b it(H P )

H P L/R

(N ote)

T yp.5 0m s

Note 40. When PR2 = PR3 = PR6 = â0â, auto power-up function is selected (ATPU bit = â1â) and pen touch is detected,

then the AK4650 automatically starts to power-up the headphone-amp by setting PMHPL bit = â1â, PMHPR bit

= â1â and HPMT bit = â0â.

Figure 38. Sequence from AC-Link power-up to headphone output

MS0502-E-01

- 50 -

2007/04

▷