ak4569 AKM Semiconductor, Inc., ak4569 Datasheet - Page 26

• Manufacturer Part Number: ak4569
• Description: 20-bit Stereo Codec With Ipga & Hp-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Internal registers may be written via to the 3 wire µP interface pins (CSN, CCLK and CDTI). The data on this interface
consists of Chip address (2bits, Fixed to “10”), Read/Write (1bit, Fixed to “1”, Write only), Register address (MSB first,
5bits) and Control data (MSB first, 8bits). Address and data is clocked in on the rising edge of CCLK. For write
operations, data is latched after a low-to-high transition of CSN. The clock speed of CCLK is 5MHz(max). The value of
internal registers is initialized at PDN= “L”.
MS0292-E-01
Serial Control Interface
CCLK
CSN
CDTI
C1
0
C0
1
R/W
2
C1-C0: Chip Address (Fixed to “10”)
R/W: Read/Write (Fixed to “1” : Write only)
A4-A0: Register Address
D7-D0: Control Data
A4
3
Figure 21. Control Interface
A3
4
A2
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
[AK4569]
2005/07