AK4631 Datasheet, PDF (25/69 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK-AMP

ASAHI KASEI
[AK4631]
„ PLL Master Mode (PMPLL bit = “1”, M/S bit = “1”)
֎෦͔Β11.2896MHz, 12MHz , 12.288MHz, 13.5MHz, 24MHz or 27MHz ͷΫϩοΫΛೖྗ͠ɺ಺෦ͷPLLʹΑ
ΓMCKO, BICK, FCKΫϩοΫΛੜ੒͠ग़ྗ͠·͢ɻMCKOग़ྗ͸256fsݻఆͰɺMCKO bitʹΑΓɺON/OFF
͕ՄೳͰ͢ɻBICKग़ྗ͸BCKO1-0 bitʹΑΓɺ16fs, 32fs or 64fsΛબ୒͢Δ͜ͱ͕Ͱ͖·͢ɻ(See Table 9)
BICKग़ྗ͕16fsͷ৔߹͸ɺΦʔσΟΦI/F͸DSPϞʔυͷΈରԠ͠·͢ɻ
AK4631
11.2896MHz, 12MHz, 12.288MHz
13.5MHz, 24MHz, 27MHz
DSP or µP
MCKI
MCKO
BICK
FCK
SDTO
SDTI
256fs
16fs, 32fs, 64fs
1fs
MCLK
BCLK
FCK
SDTI
SDTO
Figure 18. PLL Master Mode
Mode
0
1
2
3
BCKO1
BCKO0
BICKग़ྗप೾਺
0
0
16fs
0
1
32fs
1
0
64fs
1
1
N/A
Table 9. BICK Output Frequency at Master Mode
Default
MS0317-J-01
- 25 -
2004/11