AK4645EN Datasheet, PDF (28/96 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4645]
„ PLL Slave Mode (AIN3 bit = “0”, PMPLL bit = “1”, M/S bit = “0”)
MCKI, BICK or LRCK pin΁ೖྗ͞ΕΔΫϩοΫΛج४ʹ಺෦ͷPLLʹͯAK4645ʹඞཁͳΫϩοΫΛੜ੒͠
·͢ɻPLLͷج४ΫϩοΫ͸ɺPLL3-0 bitsʹͯઃఆ͢Δ͜ͱ͕Ͱ͖·͢(Table 5)ɻ
a) PLL ج४ΫϩοΫ: MCKI pin
MCKOʹಉͨ͠ظBICK, LRCKΛೖྗ͠·͢ɻMCKOͱLRCK͸ಉ͢ظΔඞཁ͕͋Γ·͕͢Ґ૬Λ߹ΘͤΔඞ
ཁ͸͋Γ·ͤΜɻϚελΫϩοΫग़ྗ(MCKO pin)͸PS1-0 bits (Table 10)Ͱઃఆ͞Εͨप೾਺Λग़ྗ͠ɺMCKO
bitͰON/OFFՄೳͰ͢ɻαϯϓϦϯάप೾਺͸ɺFS3-0 bitsͰઃఆ͢Δ͜ͱ͕Ͱ͖·͢ɻ(See Table 6)
AK4645
11.2896MHz, 12MHz, 12.288MHz, 13MHz,
13.5MHz, 19.2MHz, 24MHz, 26MHz,
27MHz
DSP or µP
MCKI
MCKO
BICK
LRCK
256fs/128fs/64fs/32fs
≥ 32fs
1fs
MCLK
BCLK
LRCK
SDTO
SDTI
SDTI
SDTO
Figure 20. PLL Slave Mode 1 (PLL Reference Clock: MCKI pin)
MS0543-J-00
- 28 -
2006/09