ak4364 AKM Semiconductor, Inc., ak4364 Datasheet - Page 23

• Manufacturer Part Number: ak4364
• Description: 96khz 24bit ?? Dac With Pll And Dit
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
n Serial Control Interface
The AK4364 can control its functions via registers. Internal registers may be written by 2 types of control mode. The chip
address is determined by the state of the CAD0 and CAD1 inputs. PDN = “L” initializes the registers to their default
values. Writing “0” to the RSTN bit can initialize the internal timing circuit. But in this case, the register data is not be
initialized.
* When the AK4364 is in the power down mode (PDN = “L”) or the MCLK is not provided, writing into the control
MS0014-E-02
register is inhibited.
(1) 3-wire Serial Control Mode (I2C = “L”)
(2) I
consists of Chip address (2bits, CAD0/1), 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 and data is
clocked out on the falling edge. For write operations, data is latched after a low-to-high transition of CSN. The clock
speed of CCLK is 5MHz(max). The CSN and CCLK pins should be held to “H” except for access.
address (2bits, CAD0/1), Read/Write (1bit, Fixed to “0”; Write only), Register address (MSB first, 5bits) and
Control data (MSB first, 8bits). Address and data is clocked in on the rising edge of SCL and data is clocked out on
the falling edge. Data can be written after a high-to-low transition of SDA when SCL is “H”(start condition), and is
latched after a low-to-high transition of SDA when SCL is “H”(stop condition). The clock speed of SCL is
100kHz(max). The CSN pin should be connected to DVDD at I
register address auto increment capability.
Internal registers may be written to the 3 wire µP interface pins (CSN,CCLK and CDTI). The data on this interface
Internal registers may be written to I
2
C Bus Control Mode (I2C = “H”)
SDA
SCL
CCLK
CSN
CDTI
Start
0
0
1
C1
0
0
C0
1
0
R/W
C1 C0
2
C1-C0: Chip Address (C1=CAD1, C0=CAD0)
R/W:
A4-A0: Register Address
D7-D0: Control Data
C1-C0: Chip Address (C1=CAD1, C0=CAD0)
R/W:
A4-A0: Register Address
D7-D0: Control Data
ACK:
R/W
2
A4
C Bus interface pins: SCL & SDA. The data on this interface consists of Chip
3
ACK
A3
4
Read/Write (Fixed to “1” : Write only)
0
Read/Write (Fixed to “0” : Write only)
Acknowledge
A2
5
0
A1
6
0 A4 A3 A2 A1 A0
- 23 -
A0
7
D7
8
D6
9
2
C Bus control mode. The AK4364 does not have a
D5
10 11 12 13
ACK
D4
D7 D6 D5 D4 D3 D2 D1 D0
D3
D2
D1
14 15
D0
ACK
Stop
[AK4364]
2001/05