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參數(shù)資料
| 型號： | KS0724 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD |
| 中文描述： | 65的COM / 132賽格驅(qū)動 |
| 文件頁數(shù)： | 31/66頁 |
| 文件大?。?/td> | 899K |
| 代理商： | KS0724 |
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KS0724 PRELIMINARY SPEC. VER. 0.8 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
27
In Case of Using Internal Resistors, Ra and Rb. (INTRS = "H")
When INTRS pin is "H", resistor Ra is connected internally between VR pin and V
SS
, and Rb is connected
between V0 and VR. We determine V0 by two instructions, "Regulator Resistor Select" and "Set Reference
Voltage".
Table 15. Internal Rb / Ra Ratio depending on 3-bit Data ( R2 R1 R0 )
3-bit data settings (R2 R1 R0)
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
1+(Rb / Ra)
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.4
The following figure shows V0 voltage measured by adjusting internal regulator resistor ratio (Rb / Ra) and 6-bit
electronic volume registers for each temperature coefficient at Ta = 25
°
C.
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
0
8
16
24
32
40
48
56
Electronic volume level
V0
[V]
(1 1 1)
(1 1 0)
(1 0 1)
(1 0 0)
(0 1 1)
(0 1 0)
(0 0 1)
(0 0 0)
Figure 16. Electronic Volume Level
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