User Manual

點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC. DM163
8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 Page 8
AC Characteristics (V
DD
= 3.3 V, Ta = 25°C)
CHARACTERISTIC SYMBOL CONDITION MIN. TYP. MAX. UNIT
DCK Frequency FDCK Cascade operation ⎯ ⎯ 20 MHz
DCK pulse duration t
wh
/ t
wl
High or low level 15 ⎯ ⎯ ns
DCK rise/fall time t
r
/ t
f
⎯ ⎯ ⎯ 20 ns
GCK Frequency FGCK Cascade operation 1 ⎯ 20 MHz
GCK pulse duration t
wh
/ t
wl
High or low level 15 ⎯ ⎯ ns
GCK rise/fall time t
r
/ t
f
⎯ ⎯ ⎯ 20 ns
RST_B pulse duration twrst_b Low level 100 ⎯ ⎯ ns
Set-up Time for SIN tsetup(D) Before DCK rising edge 2 ⎯ ⎯ ns
Hold Time for SIN thold(D) After DCK rising edge 5 ⎯ ⎯ ns
Set-up Time for DCK tsetup(L) Before LAT_B falling edge 5 ⎯ ⎯ ns
LAT_B Pulse Width tw LAT ⎯ 7 ⎯ ⎯ ns
Set-up Time for LAT_B Tsetup(G) Before GCK rising edge 23 ⎯ ⎯ ns
Set-up Time for SELBK Tsetup(S) Before DCK rising edge 9 ⎯ ⎯ ns
Hold Time for SELBK Thold(S) After DCK rising edge 1 ⎯ ⎯ ns
Electrical Characteristics
(V
DD
= 5.0 V, Ta = 25°C unless otherwise noted)
CHARACTERISTIC SYMBOL CONDITION MIN. TYP. MAX. UNIT
Input Voltage “H” Level VIH ⎯ 0.8 V
DD
⎯ V
DD
Input Voltage “L” Level VIL ⎯ GND ⎯ 0.2 V
DD
V
Output Leakage Current Ileak VOH = 17 V ⎯ ⎯ ± 0.1
uA
VOL IOL = 2 mA ⎯ ⎯ 0.2
Output Voltage ( SOUT)
V
OH IOH = -2 mA 4.8 ⎯ ⎯
V
Output Current
(Channel-Channel)
I
OL1
V
OUT = 1.0V
R
EXT = 2.6kΩ
⎯ ± 3 ± 5 %
Output Current
(Chip-Chip)
I
OL3
V
OUT = 1.0V
R
EXT = 2.6kΩ
⎯ ± 4 ± 10
%
Supply Voltage
Regulation
% / VDD REXT = 3kΩ ⎯ ⎯ 2 % / V
IDD, analog VDD=5V, REXT = 1kΩ ⎯ 42.2 43.4
Supply Current
1
I
DD, digital VDD=5V, Cload=2pF,
DCK=GCK=1MHz
⎯ 1 1.5
mA
1
I
LED
excluded.