Document Number: 002-10635 Rev. *I
Page
258 of 325
S6J3310/20/30/40 Series
Figure 9-1: Connection between R
L
and AVCC_DAC/2 (Example)
DAC macro
LOUT/ROUT
R
L
:20K
Ω
C
L
:100pF
Vavd/2
*6: Start up time
Figure 9-2: Startup Time
Time [sec]
E
N
[
V
]
A
O
U
T
S
[
V
]
Startup Time
10mV
Last Voltage
VDD
0V
0V
*Start up time can be calculated as follows.
1.Start up time (TYP) = 650[ms] (*4)
2.CCOM = 10 µF × (1 ± α/100)
CCOM is a capacitor connected to Terminal C_L/C_R including capacitance variance.
α = Capacitance variance[%]
3.Start up time = Start up time (TYP) × (1±α) [ms]
For example, CCOM = 2.42 µF then α = (2.42 µF - 2.2 µF)/2.2 µF = 10[%]
So, Start up time = 650 ms × (1+10/100) = 715[ms]