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NJU6060 Datasheet(PDF) 3 Page - New Japan Radio

Part No. NJU6060
Description  Full Color LED Controller Driver with PWM Control
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Maker  NJRC [New Japan Radio]
Homepage  http://www.njr.co.jp/index_e.htm
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NJU6060 Datasheet(HTML) 3 Page - New Japan Radio

 
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NJU6060
Ver.2004-04-16
! BLOCK DIAGRAM
! FUNCTIONAL DESCRIPTIONS
(1) Description for each blocks
(1-1) PWM Luminance Control
The NJU6060 incorporates three channel of 32 steps PWM Luminance Control circuits. 32 steps of Luminance
Control by setting up DUTY. The relation between a register and DUTY is shown below:
REGISTER
DUTY
REGISTER
DUTY
REGISTER
DUTY
REGISTER
DUTY
0,0,0,0,0
1/32
0,1,0,0,0
9/32
1,0,0,0,0
17/32
1,1,0,0,0
25/32
0,0,0,0,1
2/32
0,1,0,0,1
10/32
1,0,0,0,1
18/32
1,1,0,0,1
26/32
0,0,0,1,0
3/32
0,1,0,1,0
11/32
1,0,0,1,0
19/32
1,1,0,1,0
27/32
0,0,0,1,1
4/32
0,1,0,1,1
12/32
1,0,0,1,1
20/32
1,1,0,1,1
28/32
0,0,1,0,0
5/32
0,1,1,0,0
13/32
1,0,1,0,0
21/32
1,1,1,0,0
29/32
0,0,1,0,1
6/32
0,1,1,0,1
14/32
1,0,1,0,1
22/32
1,1,1,0,1
30/32
0,0,1,1,0
7/32
0,1,1,1,0
15/32
1,0,1,1,0
23/32
1,1,1,1,0
31/32
0,0,1,1,1
8/32
0,1,1,1,1
16/32
1,0,1,1,1
24/32
1,1,1,1,1
32/32
(1-2) Oscillator
The NJU6060 Oscillation circuit is generated clock which generates PWM by connecting external resistor.
The oscillation circuit with the external register generate the clock for PWM. The PWM frequency (fPWM) is finely
adjusted by value of the external register. In addition, the ON/OFF of oscillation circuit is controlled by the instruction,
and the current consumption is decreased when it was OFF of the oscillation circuit.
If PWM was high when the oscillation circuit became OFF, the situation of PWM was kept. Input OFF command of
the output port.
OSC
32step
PWM
32step
PWM
32step
PWM
Driver
Driver
Driver
Instruction
Decoder
OSC
VDD
RSTb
CSb
CLK
DATA
VSS
LED1
LED2
LED3
VDD
C
P
U
I
/
F
VLED


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