DS1864 Maxim Integrated Products, DS1864 Datasheet - Page 11

• Manufacturer Part Number: DS1864
• Description: SFP Laser Controller and Diagnostic IC
• Manufacturer: Maxim Integrated Products

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(V
CC
1.00
0.80
0.60
0.40
0.20
0.00
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
= +3.3V, T
0
0
3.0
0
0
DAC 0 CURRENT vs. SUPPLY VOLTAGE
1.5mA MODE
DAC 0, 0.5mA
25 50 75 100 125 150 175 200 225 250
1.5mA MODE
25 50 75 100 125 150 175 200 225 250
3.5
A
SUPPLY VOLTAGE (V)
DAC 0 DNL (LSB)
= 25°C, unless otherwise noted.)
DAC 1 INL (LSB)
SETTING (DEC)
SETTING (DEC)
4.0
PROGRAMMED DAC
SETTING (FFh)
4.5
5.0
5.5
____________________________________________________________________
Typical Operating Characteristics (continued)
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
2.0
1.6
1.2
0.8
0.4
0
0
0
3.0
0
0
DAC 0 CURRENT vs. SUPPLY VOLTAGE
0.5mA MODE
1.5mA MODE
25 50 75 100 125 150 175 200 225 250
25 50 75 100 125 150 175 200 225 250
DAC 0, 1.5mA
3.5
SUPPLY VOLTAGE (V)
DAC 1 DNL (LSB)
SFP Laser Controller and
DAC 1 INL (LSB)
SETTING (DEC)
SETTING (DEC)
4.0
PROGRAMMED DAC
SETTING (FFh)
4.5
5.0
5.5
0.50
0.40
0.30
0.20
0.10
1.00
0.80
0.60
0.40
0.20
0.00
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
0
Diagnostic IC
0
3.0
0
0
DAC SETTING vs. POWER-UP VOLTAGE
DAC 1 CURRENT vs. SUPPLY VOLTAGE
DAC 0, 0.5mA
0.5mA MODE
DAC 1, 0.5mA
25 50 75 100 125 150 175 200 225 250
3.5
1
POWER-UP VOLTAGE (V)
SUPPLY VOLTAGE (V)
DAC 1 DNL (LSB)
SETTING (DEC)
4.0
2
PROGRAMMED DAC
SETTING (FFh)
PROGRAMMED DAC
SETTING (80h)
4.5
3
5.0
4
5.5
11
5