LP3952 Datasheet, PDF (31/46 Pages) National Semiconductor (TI) – 6-Channel Color LED Driver with Audio Synchronization

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EXAMPLE 2
LP3952
SNVS518A – JULY 2007 – REVISED MARCH 2013
Here, a second order RC-filter is used on the ASE input to convert a PWM signal to an analog waveform.
More application information is available in the document "LP3952 Evaluation Kit".
ADDR
(HEX)
00
01
02
03
04
05
06
07
08
09
0A
Table 6. LP3952 Control Register Names and Default Values
REGISTER
RGB Ctrl
R1 blink
D7
cc_rgb1
1
r1_on[3]
0
R1 cycle
G1 blink
g1_on[3]
0
G1 cycle
B1 blink
b1_on[3]
0
B1 cycle
Ext. PWM
control
D6
cc_rgb2
1
r1_on[2]
0
g1_on[2]
0
b1_on[2]
0
D5
r1sw
0
r1_on[1]
0
g1_on[1]
0
b1_on[1]
0
r1_pwm
0
D4
D3
D2
D1
D0
g1sw
b1sw
0
0
r1_on[0]
r1_off[3]
0
0
r1_cycle en
0
g1_on[0] g1_off[3]
0
0
g1_cycle en
0
b1_on[0] b1_off[3]
0
0
b1_cycle en
0
g1_pwm b1_pwm
0
0
Do not use
Do not use
Do not use
r2sw
0
r1_off[2]
0
r1_cycle[2]
0
g1_off[2]
0
g1_cycle[2]
0
b1_off[2]
0
b1_cycle[2]
0
r2_pwm
0
g2sw
0
r1_off[1]
0
r1_cycle[1]
0
g1_off[1]
0
g1_cycle[1]
0
b1_off[1]
0
b1_cycle[1]
0
g2_pwm
0
b2sw
0
r1_off[0]
0
r1_cycle[0]
0
g1_off[0]
0
g1_cycle[0]
0
b1_off[0]
0
b1_cycle[0]
0
b2_pwm
0
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