AKM Confidential
AK2571
SKN
CSN
DI
DO
High-Z
Tsksl
READY
Tpd
Toz
Invalid
High-Z
Figure 6: status output through DO pin
* Status output
Monitoring DO pin, indicates the status of READY.
After the WRITE command is executed, SK is fixed Low and CSN moves from High to Low, DO pin changes to status
output mode and outputs a READY signal.
The READY signal through DO pin stops if CSN turns High or the first bit (“1”) of the next command is input. When the
next command is input, CSN must be set high once.
(8) ADC*
（
Time sharing
）
A to D converter Input / Output characteristics
Parameter Condition
min
typ
max
Unite
Resolution
8
DNL
1
LSB
-2
2
LSB
Step (=1LSB)
8.63
mV/step
Input voltage range
Peak voltage
2.2
V
Design
target
Remark
Bit
-1
INL
0.0
Output digital code
D[7:0] (00)h-(FF)h (straight binary)
Design
target
0.0V - 2.2V
(9) MON_DAC characteristics
Parameter Condition
Min
Typ
max
Unite
Bit
DNL *1)
-1
1
*1)
－
2
2
LSB
Step (=1LSB)
*1)
6.27
mV/step Remark
Output voltage range
Peak voltage 0.5
2.1
V
Design
target
*2)
Remark
Resolution
8
LSB
INL
Input digital code
D[7:0] (00)h-(FF)h(straight binary)
0.5V - 2.1V
<Rev. 0.6E Preliminary> -45-
2001/11
