NJU3426 NJR Corporation, NJU3426 Datasheet - Page 7

• Manufacturer Part Number: NJU3426
• Description: 16-SEGMENT × 14-Digit VFD Controller / Driver
• Manufacturer: NJR Corporation

Ver.2003-03-06
TIMING SIGNAL / DUTY-CHANGE WAVEFORM
10/16
12/16
14/16
15/16
DISPLAY TIMING CHART
2/16
4/16
6/16
8/16
MD2
0
0
0
0
1
1
1
1
S
0
Oscillation frequency
Minimum blanking time : t
(duty15/16)
1-character display time : t
1-cycle display time
to S
MD1 MD0
0
0
1
1
0
0
1
1
T
XT
T
T
T
13
15
1
2
0
0
1
0
1
0
1
0
1
13 14 15
f
XT
0 1
: f
: t
2 3 4 5
BK
DG
SP
XT
=t
=(1/f
=t
t
DG
BK
BK
x 14
XT
x 16
Display timing
) x 16 x 2
6 7 8
9 10 11 12 13 14 15
t
DG
t
SP
:800kHz to 3.5MHz
:40 s to 9.2 s
:640 s to 147.2 s
:20.608ms to 8.96ms
0 1 2 3
4 5 6
(Duty count)
NJU3426
Segment signal
Timing signal
(T
0
to
- 7 -
T
13
)