AK2571 Datasheet, PDF (45/52 Pages) Asahi Kasei Microsystems – Single-Chip Automatic Power/Temperature Control for WDM Laser Diodes

AKM Confidential
AK2571
CSN
Tsksl
SKN
DI
Invalid
High-Z
Tpd
Toz
High-Z
DO
READY
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 Remark
Resolution
8
Bit
DNL
INL
Step (=1LSB)
-1
1
LSB
-2
2
LSB
8.63
mV/step
Input voltage range
Output digital code
Peak voltage
0.0
2.2
D[7:0] (00)h-(FF)h (straight binary)
0.0V - 2.2V
V Design
target
Design
target
(9) MON_DAC characteristics
Parameter
Condition
Resolution
DNL
*1)
INL
*1)
Step (=1LSB)
*1)
Output voltage range Peak voltage
Input digital code
<Rev. 0.6E Preliminary>
Min
Typ
max Unite Remark
8
Bit
-1
1
LSB
－2
2
LSB
6.27
mV/step Remark
0.5
2.1
V Design
target
*2)
D[7:0] (00)h-(FF)h(straight binary)
0.5V - 2.1V
-45-
2001/11