uc1682 ETC-unknow, uc1682 Datasheet - Page 33

• Manufacturer Part Number: uc1682
• Description: 80 X 104rgb C-stn Lcd Controller-driver W/ 32-shade Per Dot, 12-bit Per Rgb
• Manufacturer: ETC-unknow

H
Note
Sample component values: (The illustrated circuit and component values are for reference only. Please
optimize for specific requirements of each application.)
Revision 0.6
I
-
V
C
C
R
V
R
C
G
R
B
L
L
1
BIAS
:
:
:
:
:
ENERATOR AND BIAS REFERENCE CIRCUIT
: 10nF ~ 0.1uF is the recommended default value (not required for OTP version).
150 ~ 250x LCD load capacitance or 2.2µF (2V), whichever is higher.
5nF ~ 50nF (16V) is appropriate for most applications.
3 ~ 10M Ÿ, RC time constant of CL x RL should be roughly 0.2~1sec
1M³Ÿ
330K Ÿ
VDD2/VDD3
VDD2/VDD3
R1
VR
F
IGURE
VDD
F
IGURE
VDD
3: Reference circuit using internal Hi-V generator circuit
VBIAS
CBIAS
VSS
VSS2
VDD2
VDD3
VDD2
VDD3
VDD
VDD
VSS
VSS2
4: Reference circuit using external Bias source
VB0+
SB0+
VB0-
SB0-
VB1+
SB1+
VB1-
SB1-
VLCDOUT
VLCDIN
VB0+
SB0+
VB0-
SB0-
VB1+
SB1+
VB1-
SB1-
VLCDOUT
VLCDIN
CL
CL
CB1
CB1
CB0
CB0
CB1+
80x104RGB CSTN Controller-Driver
CB1+
(OPTIONAL)
10~30pf for
applications
with VLCD
over 11v
(OPTIONAL)
30pf for
applications
with VLCD
over 11v
RL
(OPTIONAL)
RL
(OPTIONAL)
UC1682
31