AK4343EN AKM [Asahi Kasei Microsystems], AK4343EN Datasheet - Page 64
AK4343EN
Manufacturer Part Number
AK4343EN
Description
Stereo DAC with HP/RCV/SPK-AMP
Manufacturer
AKM [Asahi Kasei Microsystems]
Datasheet
1.AK4343EN.pdf
(98 pages)
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ASAHI KASEI
(1) 3-wire Serial Control Mode (I2C pin = “L”)
Internal registers may be written by using the 3-wire µP interface pins (CSN, CCLK and CDTI). The data on this interface
consists of a 1-bit Chip address (Fixed to “1”), Read/Write (Fixed to “1”), Register address (MSB first, 6bits) and Control
data (MSB first, 8bits). Each bit is clocked in on the rising edge (“↑”) of CCLK. Address and data are latched on the 16th
CCLK rising edge (“↑”) after CSN falling edge(“↓”). Clock speed of CCLK is 5MHz (max). The value of internal
registers are initialized by PDN pin = “L”.
MS0478-E-01
Serial Control Interface
CSN
CCLK
CDTI
C1:
R/W:
A5-A0:
D7-D0:
C1 A5
“1”
0
1
R/W
“1”
2
Chip Address; Fixed to “1”
READ/WRITE (“1”: WRITE, “0”: READ); Fixed to “1”
Register Address
Control data
Figure 62. Serial Control I/F Timing
A4
3
A3
4
A2
5
A1 A0
6
- 64 -
7
D7 D6 D5 D4 D3 D2 D1 D0
8
9
10 11 12 13 14 15
[AK4343]
2006/10
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