AK4642VN Datasheet, PDF (72/82 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4642]
4. ֎෦ΫϩοΫϞʔυͰ࢖༻͢Δ৔߹(εϨʔϒϞʔυ)
Power Supply
PDN pin
PMVCM bit
(Addr:00H, D6)
MCKI pin
LRCK pin
BICK pin
(1)
(2) (3)
(4)
Input
(4)
Input
Example:
Audio I/F Format: MSB justified (ADC and DAC)
Input MCKI frequency: 1024fs
Sampling Frequency: 44.1kHz
MCKO: Disable
(1) Power Supply & PDN pin = “L” Æ “H”
(2) Addr:04H, Data:02H
Addr:05H, Data:27H
(3) Addr:00H, Data:40H
MCKI, BICK and LRCK input
Figure 49. Clock Set Up Sequence (4)
<खॱྫ>
(1) ޙ্ཱ͛ͪݯిɺPDN pin “L” Æ “H”
͜ͷ۠ؒ͸AK4642ͷϦηοτͷͨΊɺ150nsҎ্ͷ “L”͕۠ؒඞཁͰ͢ɻ
(2) ͜ͷ۠ؒʹɺDIF1-0, FS1-0 bitsͷઃఆΛߦͬͯԼ͍͞ɻ
(3) VCOMͷύϫʔΞοϓɿ PMVCM bit = “0” Æ “1”
֤ϒϩοΫΛ্ཱͪ͛Δલʹ࠷ॳʹVCOMΛ্ཱͪ͛ͯԼ͍͞ɻ
(4) MCKI, LRCK, BICKΫϩοΫೖྗޙɺਖ਼ৗͳಈ࡞͕։࢝͠·͢ɻ
MS0358-J-02
- 72 -
2005/04