AK5406 Datasheet, PDF (15/37 Pages) Asahi Kasei Microsystems – 80MSPS Triple ADC for Displays

ASAHI KASEI
[AK5406]
[I²C Slave Address]
I²C Slave Address is selectable to be either 1001100 or 1001101 by AO pin setting.
Table 10 : I²C Address
A0 pin
LO
HI
I²C Slave Address
1001100
1001101
[I²C Write Sequence]
When the Slave Address of the AK5406 Write Mode is received at the First Byte,
Sub-Address at the Second Byte and Data at the Third & Succeeding Bytes are
received.
There are 2 operations in Write sequence –
(a) Single Byte Write Sequence
S
Slave
Address
WA
Sub
Address
A
Data
A Stp
8b
1b 8b 1b 8b 1b
Fig. 9a Single Byte Write Sequence
(b) Multiple Byte (m bytes) Write Sequence ( Sequential Write operation )
S
Slave
Address
W
A
Sub
Address(n)
A
Data(n)
A Data(n+1) A
Data(n+m) A Stp
8b
1b 8b 1b 8b 1b 8b 1b
8b 1b
Fig. 9b Sequential Write
(c) Read Sequence
When the Slave Address of the AK5406 Read Mode is received at the First Byte,
Data at the second & Succeeding Bytes transmitted from the AK5406.
S
Slave
Address
W
A
Sub
Address(n)
A
rS
Slave
Address
RA
Data1
A
Data2
A
Data n A Stp
8b
1b 8b 1b
8b
1b 8b 1b 8b 1b
8b 1b
Fig. 9c Read Sequence
Abbreviation terms listed above mean :
S,rS
Start Condition
A
0:Acknowledge
(SDA Low)
A
1:Not Acknowledge
(SDA High)
Stp
Stop Condition
R/W
1:Read, 0:Write
To be controlled by the Master device. To be output by micro-computer
normally.
To be controlled by the Slave device. To be output by the AK5406.
MS0592-E-01
15
2008/07