SSD1854U ETC [List of Unclassifed Manufacturers], SSD1854U Datasheet - Page 39

• Manufacturer Part Number: SSD1854U
• Description: LCD Segment / Common Driver with Controller CMOS
• Manufacturer: ETC [List of Unclassifed Manufacturers]

Table 11 - AC Characteristics (Unless otherwise specified, Voltage Referenced to V
T
Frame Frequency =
where
Example 1:
F
Frame Frequency = 75 Hz
Example 2:
F
Frame Frequency = 58.6 Hz
SSD1854
Series
A
osc =
osc =
Symbol
= -20 to 85 C)
11 AC CHARACTERISTICS
F
osc
120KHz; PWM = 9 level; MUX = 160
120KHz; PWM = 15 level; MUX = 128
F
PWM is the Pulse Width Modulation level
MUX is the multiplex ratio
210.00
180.00
150.00
120.00
osc
90.00
60.00
Variation of Oscillation Frequency
is the oscillation Frequency
Rev 1.0
08/2002
(
PWM
Figure 8 - Oscillation Frequency at different VDD at 25 C
Parameter
1.8
F
Oscillation Frequency at different VDD
OSC
) 1
MUX
2.1
2.4
VDD (V)
Oscillator Resistor = 680K
Test Condition
2.7
3
Min
-10
3.3
SS
Typ
, V
-
DD,
V
Max
CI
+10
470K
560K
680K
820K
1000K
SOLOMON
= 2.7V,
Unit
%
34