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LM9823CCWM bảng dữ liệu(PDF) 15 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện LM9823CCWM
Giải thích chi tiết về linh kiện  LM9823 3 Channel 48-Bit Color Scanner Analog Front End
PDF  22 Pages
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LM9823CCWM bảng dữ liệu(HTML) 15 Page - National Semiconductor (TI)

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Red, Green and Blue Offset DAC Settings (1, 2 & 3)
Offset Polarity
B5
0
1
Positive Offset
Negative Offset
Offset Value
B4(MSB)
B3
B2
B1
B0(LSB)
Typical Offset = 20LSBs * Offset Value * PGA Gain
Typical Offset
Values
B5
(SIGN)
0
0
0
• • •
0
0
1
1
1
• • •
1
1
B4
(MSB)
0
0
0
• • •
1
1
0
0
0
• • •
1
1
B3
0
0
0
• • •
1
1
0
0
0
• • •
1
1
B2
0
0
0
• • •
1
1
0
0
0
• • •
1
1
B1
0
0
1
• • •
1
1
0
0
1
• • •
1
1
B0
(LSB)
0
1
0
• • •
0
1
0
1
0
• • •
0
1
Typical Offset (with PGA Gain = 1)
12 bit LSBs
0.00
+20
+40
• • •
+600
+620
0
-20
-40
• • •
-600
-620
Red, Green and Blue Gain Settings (4, 5 & 6)
Boost Gain Enable
B5
0
1
Boost Gain = 1V/V
Boost Gain = 3V/V
PGA Gain Value
B4(MSB)
B3
B2
B1
B0(LSB)
PGA Gain (V/V) =.933 + 0.0667 * (PGA Gain Value)
Gain
Gain = Boost Gain * PGA Gain
Typical Gain Values
B5
(x3)
0
0
0
• • •
0
0
0
• • •
1
1
1
• • •
1
1
1
B4
(MSB)
0
0
0
• • •
1
1
1
• • •
0
0
0
• • •
1
1
1
B3
0
0
0
• • •
1
1
1
• • •
0
0
0
• • •
1
1
1
B2
0
0
0
• • •
1
1
1
• • •
0
0
0
• • •
1
1
1
B1
0
0
1
• • •
0
1
1
• • •
0
0
1
• • •
0
1
1
B0
(LSB)
0
1
0
• • •
1
0
1
• • •
0
1
0
• • •
1
0
1
Typical Gain
(V/V)
0.93
1.00
1.07
• • •
2.87
2.93
3.00
• • •
2.79
3.00
3.20
• • •
8.60
8.80
9.00
Table 2: Configuration Register Parameters (Continued)
Note: Power-Up Default Register Settings are shown in Bold Italics
Parameter
(Address)
Control Bits
Result



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