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LM4970 Folha de dados(PDF) 10 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Nome de Peças LM4970
Descrição Electrónicos  Audio Synchronized Color LED Driver
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Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4970 Folha de dados(HTML) 10 Page - National Semiconductor (TI)

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Application Information (Continued)
TABLE 5. Pattern Select Register
Data Bit
Bit Name
Default Value
Condition
Function
PSO
I
2C_SEL
0
0
Enables LED drivers to be controlled by audio
synchronization
1
Enables LED drivers to be controlled through
I
2C
PS1
I
2C_LED1
0
0
Disables the LED1 driver, if I
2C_SEL is set
1
Enables the LED1 driver, if I
2C_SEL is set
PS2
I
2C_LED2
0
0
Disables the LED2 driver, if I
2C_SEL is set
1
Enables the LED2 driver, if I
2C_SEL is set
PS3
I
2C_LED3
0
0
Disables the LED3 driver, if I
2C_SEL is set
1
Enables the LED3 driver, if I
2C_SEL is set
PS4
RSVD
0
0
RESERVED
1
RESERVED
TABLE 6. Current Select Register
Data Bit
Bit Name
Default
Value
Condition
Function
CSO
ILED1_0
0
0
Programs the current drive of the LED1 driver. Current drive for
LED1 is set as follows:
1
ILED1<1:0>
Current Drive Setting
CS1
ILED1_1
1
0
00
0.66X
01
1X
1
10
1.33X
11
2X
CS2
ILED2_0
0
0
Programs the current drive of the LED2 driver. Current drive for
LED2 is set as follows:
1
ILED2<1:0>
Current Drive Setting
CS3
ILED2_1
1
0
00
0.66X
01
1X
1
10
1.33X
11
2X
CS4
ILED3_0
0
0
Programs the current drive of the LED3 driver. Current drive for
LED3 is set as follows:
1
ILED3<1:0>
Current Drive Setting
CS5
ILED3_1
1
0
00
0.66X
01
1X
1
10
1.33X
11
2X
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