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LTC3207 데이터시트(PDF) 13 Page - Linear Technology

부품명 LTC3207
상세설명  600mA Universal Multi-Output LED/CAM Driver
PDF  20 Pages
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LTC3207 데이터시트(HTML) 13 Page - Linear Technology

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LTC3207/LTC3207-1
13
3207fc
Register Sub-Address = 1101
MSB
HIGH BITS
LSB
MSB
LOW BITS
LSB
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
D3
D2
D1
D0
D3
D2
D1
D0
REG13, Camera
LED 4-bit high and 4-bit low DAC data.
REG15, ENU, Gradation and Blink Times
Setting bits 0 high to 3 high selects the outputs to be
controlled by ENU. Bits 4 to 7 control gradation and
blink times.
Sub-Address = 1111
Blink Times and Period
Gradation Ramp Times and Period
D7
D6
Blink
Period
D5
D4
Ramp
Period
0
0
1
1
0
1
0
1
0.625s
0.156s
0.625s
0.156s
1.25s
1.25s
2.5s
2.5s
0
0
1
1
0
1
0
1
Disabled
0.24s
0.48s
0.96s
Disabled
0.45s
0.9s
1.8s
Register Sub-Address = 1110
MSB
LSB
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ULED8
ULED7
ULED6
ULED5
ULED4
ULED3
ULED2
ULED1
REG14, ENU
Setting bit high selects the outputs to be controlled by ENU.
Register Sub-Address = 1111
ENU Output Selection
LSB
3210
ULED12
ULED11
ULED10
ULED9
START and STOP Conditions
A bus-master signals the beginning of a communication
to a slave device by transmitting a START condition.
A START condition is generated by transitioning SDA
from high to low while SCL is high. When the master has
finished communicating with the slave, it issues a STOP
condition by transitioning SDA from low to high while
SCL is high. The bus is then free for communication with
another I2C device.
Byte Format
Each byte sent to the LTC3207/LTC3207-1 must be 8 bits
long followed by an extra clock cycle for the Acknowledge
bit to be returned by the LTC3207/LTC3207-1. The data
should be sent to the device most significant bit (MSB)
first.
OPERATION



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