UPD160061A NEC, UPD160061A Datasheet - Page 6
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UPD160061A
Manufacturer Part Number
UPD160061A
Description
384-OUTPUT TFT-LCD SOURCE DRIVER
Manufacturer
NEC
Datasheet
1.UPD160061A.pdf
(18 pages)
5. RELATIONSHIP BETWEEN INPUT DATA AND OUTPUT VOLTAGE VALUE
gray scale voltages of differing polarity with respect to the LCD’s counter electrode voltage. The D/A converter consists of
ladder resistors and switches.
to V
to V
fine-gray scale voltage precision is not necessary, there is no need to connect a voltage follower circuit to the
compensated power supplies V
common electrode potential V
relationships of below.
input data and output voltage.
6
The
The ladder resistors (r0 to r62) are designed so that the ratio of LCD panel
Figure 5–1 shows the relationship between the driving voltages such as liquid-crystal driving voltages V
Figures 5–2 indicates
63
4
and V
” is almost equivalent, resistor ratio is shown in Figure 5−2. For the 2 sets of five
µ
PD160061A incorporates a 6-bit D/A converter whose odd output pins and even output pins output respectively
0.3 V
0.2 V
0.2 V
5
to V
0.5 V
9
, respectively, input gray scale voltages of the same polarity with respect to the common voltage. When
V
Figure 5–1. Relationship between Input Data and
V
V
V
V
V
DD2
V
V
V
DD2
V
V
SS2
V
1
2
3
4
5
6
8
0
7
9
γ
-corrected voltages and ladder resistors ratio. Figures 5–3 indicates the relationship between the
00
COM
1
to V
, and
0.5 V
3
V
and V
γ
DD2
DD2
-corrected voltages V
– 0.3 V ≥ V
– 0.2 V ≥ V
6
to V
10
Data Sheet S16041EJ2V0DS
8
.
5
0
> V
> V
Input data (HEX.)
6
1
> V
> V
0
20
2
7
to V
> V
> V
8
3
9
> V
> V
and the input data. Be sure to maintain the voltage
γ
9
4
- corrected Power Supplies
> V
≥ 0.5 V
γ
-compensated voltages to V
SS2
30
+ 0.2 V
DD2
γ
-compensated power supplies, V
3F
www.DataSheet4U.com
µ
Split interval
PD160061A
0
16
16
16
16
16
16
16
16
’ to V
DD2
63
and V
’ and V
SS2
0
γ
”
0
-
,