AKM Confidential
AK2571
3.4 Gain setting of I-DAC1,2,3
See the table below for a description on how to set the three I-DACs full-scale voltages. The resolution is set in proportion
with the gain.
I-DAC1 gain setting
R_DAC1_GAIN Gain set value Max
(E_DAC1_GAIN)
output Setting range of Non missing code Current
output current (typ) warranty range (typ) resolution (typ)
current (typ)
00
01
10
11
1
121.8mA
60.9mA
30mA-121.8mA
15mA-60.9mA
7.5mA-30.45mA
2.5mA-10.15mA
30mA over
15mA over
7.5mA over
2.5mA over
0.36mA
0.18mA
0.09mA
0.03mA
1/2
1/4
1/12
30.45mA
10.15mA
I-DAC2 Gain setting
R_DAC1_GAIN Gain set value Max
(E_DAC1_GAIN)
output Setting range of Non missing code Current
output current (typ) warranty range (typ) resolution (typ)
current (typ)
00(11)
10
1
20.42mA
10.71mA
5.36mA
0mA-21.42mA
0mA-10.71mA
0mA-5.36mA
2.5mA over
0.084mA
0.042mA
0.021mA
1/2
1/4
1.25mA over
0.625mA over
11
I-DAC3 Gain setting
R_DAC1_GAIN Gain set value Max
(E_DAC1_GAIN)
output Setting range of Non missing code Current
output current (typ) warranty range (typ) resolution (typ)
current (typ)
00(11)
10
1
21.42mA
10.71mA
5.36mA
0mA-20.42mA
0mA-10.71mA
0mA-5.36mA
2.5mA over
0.084mA
0.042mA
0.021mA
1/2
1/4
1.25mA over
0.625mA over
11
<Rev. 0.6E Preliminary>
-9-
2001/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
