ak4368 AKM Semiconductor, Inc., ak4368 Datasheet - Page 46

• Manufacturer Part Number: ak4368
• Description: Dac With Built-in Pll & Hp-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
(1) 3-wire Serial Control Mode (I2C pin = “L”)
Internal registers may be written to via the 3-wire µP interface pins (CSN, CCLK and CDTI). The data on this interface
consists of the Chip address (2-bits, Fixed to “01”), Read/Write (1-bit, Fixed to “1”, Write only), Register address (MSB
first, 5-bits) and Control data (MSB first, 8-bits). Address and data are clocked in on the rising edge of CCLK. For write
operations, the data is latched after a low-to-high transition of the 16th CCLK. The clock speed of CCLK is 5MHz(max).
The value of the internal registers is initialized at PDN pin = “L”.
MS0529-E-00
Serial Control Interface
CCLK
CSN
CDTI
C1
0
C0
1
R/W
Figure 38. 3-wire Serial Control I/F Timing
2
C1-C0:
R/W:
A4-A0: Register Address
D7-D0: Control Data
A4
3
A3
4
A2
Chip Address (Fixed to “01”)
READ/WRITE (Fixed to “1”, Write only)
5
A1
6
A0
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7
D7
8
D6
9
D5
10 11 12 13 14 15
D4
D3
D2
D1
D0
[AK4368EG]
2006/07