AK4642VN Datasheet, PDF (52/82 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4642]
„ γϦΞϧίϯτϩʔϧΠϯλϑΣʔε
(1) 3ઢγϦΞϧίϯτϩʔϧϞʔυ (I2C pin = “L”)
Ϩδελઃఆ͸3ઢࣜγϦΞϧI/Fϐϯ(CSN, CCLK, CDTI)Ͱॻ͖ࠐΈΛߦ͍·͢ɻI/F্ͷσʔλ͸Chip
address (2bits, “10”ݻఆ), Read/Write (1bit, “1”ݻఆ), Register address (MSB first, 5bits) ͱ Control Data (MSB first,
8bits)Ͱߏ੒͞Ε·͢ɻσʔλૹ৴ଆ͸CCLKͷ “↓”Ͱ֤ϏοτΛग़ྗ͠ɺड৴ଆ͸ “↑”ͰऔΓࠐΈ·͢ɻσ
ʔλͷॻ͖ࠐΈ͸CSNͷ “↓”ޙ16ճ໨ͷCCLK “↑”Ͱ༗ޮʹͳΓ·͢ɻCCLKͷΫϩοΫεϐʔυ͸5MHz
(max)Ͱ͢ɻPDN pin = “L”ͰϨδελͷ஋͸Ϧηοτ͞Ε·͢ɻ
CSN
CCLK
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
CDTI
C1 C0 R/W A4 A3 A2 A2 A0 D7 D6 D5 D4 D3 D2 D1 D0
“1” “0” “1”
C1-C0:
R/W:
A4-A0:
D7-D0:
Chip Address (C1 = “1”, C0 = “0”); Fixed to “10”
READ/WRITE (“1”: WRITE, “0”: READ); Fixed to “1”
Register Address
Control data
Figure 35. γϦΞϧίϯτϩʔϧΠϯλϑΣʔελΠϛϯά
MS0358-J-02
- 52 -
2005/04