AK4642VN Datasheet, PDF (26/82 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4642]
„ PLL Master Mode (PMPLL bit = “1”, M/S bit = “1”)
֎෦͔Β11.2896MHz, 12MHz , 12.288MHz, 13.5MHz, 24MHz or 27MHz ͷΫϩοΫΛೖྗ͠ɺ಺෦ͷPLLʹΑ
ΓMCKO, BICK, LRCKΫϩοΫΛੜ੒͠ग़ྗ͠·͢ɻϚελΫϩοΫग़ྗ(MCKO)͸PS1-0 bit (Table 9)Ͱઃ
ఆ͞Εͨप೾਺Λग़ྗ͠ɺMCKO bitͰON/OFFՄೳͰ͢ɻBICKग़ྗ͸BCKO bitʹΑΓɺ32fs or 64fsΛબ୒͢
Δ͜ͱ͕Ͱ͖·͢ɻ(See Table 10)
AK4642
11.2896MHz, 12MHz, 12.288MHz
13.5MHz, 24MHz, 27MHz
DSP or µP
MCKI
MCKO
BICK
LRCK
SDTO
SDTI
256fs/128fs/64fs/32fs
32fs, 64fs
1fs
MCLK
BCLK
LRCK
SDTI
SDTO
Figure 13. PLL Master Mode
Mode
PS1 bit
PS0 bit
MCKO pin
0
0
0
256fs
Default
1
0
1
128fs
2
1
0
64fs
3
1
1
32fs
Table 9. MCKOप೾਺ (PLLϞʔυ, MCKO bit = “1”)
BCKO bit BICKग़ྗप೾਺
0
32fs
Default
1
64fs
Table 10. BICK Output Frequency at Master Mode
MS0358-J-02
- 26 -
2005/04