AK4645AEZ Datasheet, PDF (59/85 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

[AK4645A]
■ γϦΞϧίϯτϩʔϧΠϯλϑΣʔε
(1) 3ઢγϦΞϧίϯτϩʔϧϞʔυ (I2C pin = “L”)
Ϩδελઃఆ͸3ઢࣜγϦΞϧI/Fϐϯ(CSN, CCLK, CDTI)Ͱॻ͖ࠐΈΛߦ͍·͢ɻI/F্ͷσʔλ͸Chip
address (1bit, “1”ݻఆ), Read/Write (1bit, “1”ݻఆ), Register address (MSB first, 6bits) ͱ Control Data (MSB first,
8bits)Ͱߏ੒͞Ε·͢ɻσʔλૹ৴ଆ͸CCLKͷ “↓”Ͱ֤ϏοτΛग़ྗ͠ɺड৴ଆ͸ “↑”ͰऔΓࠐΈ·͢ɻσ
ʔλͷॻ͖ࠐΈ͸CSNͷ “↓”ޙ16ճ໨ͷCCLK “↑”Ͱ༗ޮʹͳΓ·͢ɻ1ΞυϨε΁ͷॻ͖ࠐΈຖʹCSNΛҰ
౓ “H”ʹ͍ͯͩ͘͠͞ɻCCLKͷΫϩοΫεϐʔυ͸5MHz (max)Ͱ͢ɻPDN pin = “L”ͰϨδελͷ஋͸Ϧη
οτ͞Ε·͢ɻ
CSN
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
CCLK _{Clock, “H” or “L”}
Clock, “H” or “L”
CDTI “H” or “L”
C1 A5 R/W A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 “H” or “L”
“1”
“1”
C1:
R/W:
A5-A0:
D7-D0:
Chip Address; Fixed to “1”
READ/WRITE (“1”: WRITE, “0”: READ); Fixed to “1”
Register Address
Control data
Figure 57. γϦΞϧίϯτϩʔϧΠϯλϑΣʔελΠϛϯά
MS0986-J-00
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2008/07