CS1630 Datasheet, PDF (52/56 Pages) Cirrus Logic – 2-Channel TRIAC Dimmable LED Driver IC

CS1630/31
6.48 Channel 1 Color Calibration 3B (CH1_CAL3B) – Address 122
7
SET_3B
6
5
4
3
2
1
0
-
CH1_CAL3B5 CH1_CAL3B4 CH1_CAL3B3 CH1_CAL3B2 CH1_CAL3B1 CH1_CAL3B0
Number
Name
Description
Configures the color control system to use the color calibration values in
[7]
SET_3B
memory tag 3B.
0 = Disables the use of memory tag 3B
1 = Enables the use of memory tag 3B (Takes priority over SET_3A=1)
[ 6]
-
Reserved
[ 5:0 ]
Channel 1 color control system calibration value that scales the current of
channel 1 within ±15%. The value is a two’s complement integer in the range
CH1_CAL3B[5:0] of -32CH1_CAL3B[5:0]31. The calibration current gain is given by:
1 + CH1_CAL3B[5:0]  0.00488
6.49 Channel 2 Color Calibration 3B (CH2_CAL3B) – Address 123
7
6
5
4
3
2
1
0
-
-
CH2_CAL3B5 CH2_CAL3B4 CH2_CAL3B3 CH2_CAL3B2 CH2_CAL3B1 CH2_CAL3B0
Number
Name
Description
[ 7:6 ]
-
Reserved
[ 5:0]
Channel 2 color control system calibration value that scales the current of
channel 2 within ±15%. The value is a two’s complement integer in the range
CH2_CAL3B[5:0] ^{of -32CH2_CAL3B[5:0]31. The calibration current gain is given by:}
1 + CH2_CAL3B[5:0]  0.00488
6.50 CRC Memory Tag 3B(CRC_MTAG3B) – Address 124
7
6
5
4
3
2
1
0
2⁷
2⁶
2⁵
2⁴
2³
2²
2¹
2⁰
CRC Memory Tag 3B register used by the color control system. To activate the use of this register the SET_3B
bit must be programmed to ‘1’ (see "Channel 1 Color Calibration 3B (CH1_CAL3B) – Address 122" on page 52).
The CRC value is obtained by computing the CRC value for the registers at address 122 and 123.
52
DS954F2