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EM62100AGH Datasheet(PDF) 26 Page - ELAN Microelectronics Corp

Part # EM62100AGH
Description  65 COM / 132 SEG STN LCD Driver
PDF  60 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM62100AGH Datasheet(HTML) 26 Page - ELAN Microelectronics Corp

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EM62100
65 COM/132 SEG STN LCD Driver
20 •
•••
Product Specification (V1.1) 09.13.2005
(This specification is subject to change without further notice)
6.11.3 Configuration Setting
The EM62100 has two-optional configurations, configured by DUTY0 and DUTY1, as
shown in Table 9.
Table 9
Duty ratio
Duty1
Duty0
LCD bias
V1
V2
V3
V4
1/5
(4/5)V0
(3/5)V0
(2/5)V0
(1/5)V0
1/33
0
0
1/6
(5/6)V0
(4/6)V0
(2/6)V0
(1/6)V0
1/6
(5/6)V0
(4/6)V0
(2/6)V0
(1/6)V0
1/49
0
1
1/8
(7/8)V0
(6/8)V0
(2/8)V0
(1/8)V0
1/6
(5/6)V0
(4/6)V0
(2/6)V0
(1/6)V0
1/55
1
0
1/8
(7/8)V0
(6/8)V0
(2/8)V0
(1/8)V0
1/7
(6/7)V0
(5/7)V0
(2/7)V0
(1/7)V0
1/65
1
1
1/9
(8/9)V0
(7/9)V0
(2/9)V0
(1/9)V0
6.12 Power Supply Module
The power supply circuits have low power consumption and generate the voltage
levels necessary to drive the LCD. There are Booster (step-up voltage) circuits,
Voltage regulator circuits, and voltage follower circuits. They are valid only when
operating in master mode.
The power supply circuit can turn the Booster circuits, the voltage regulator circuits and
the voltage follower circuit ON or OFF independently through the Power Control Set
command. Consequently, it is possible to make both external and internal power
supplies function in parallel. Table 10 shows the Power Control Set Command 3-bit
data control function. Table 11 shows the reference combinations.
Table 10
Status
Item
H
L
D2 Voltage Booster (V/B) circuit control bit
ON
OFF
D1 Voltage Regulator (V/R) circuit control bit
ON
OFF
D0 Voltage Follower (V/F) circuit control bit
ON
OFF
Table 11. Recommended Power Supply Combinations
Use Step-up
V/B V/R V/F
V/B
Circuit
V/R
Circuit
V/F
Circuit
External
Voltage
Input
Step-up
Voltage
System
Terminal
Only the internal power
supply is used
1
1
1
ON
ON
ON
VEE
Used
Only the V/R circuit and
V/F circuits are used
0
1
1
OFF
ON
ON
VOUT, VEE
Open
Only the V/F circuit is
used
0
0
1
OFF
OFF
ON
V0, VEE
Open
Only the external
power supply is used
0
0
0
OFF
OFF
OFF
V0 to V4
Open



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