MAX3646ETG+ Maxim Integrated Products, MAX3646ETG+ Datasheet - Page 5

• Manufacturer Part Number: MAX3646ETG+
• Description: IC LSR DRVR 622MBPS 3.63V 24TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Driver (Fiber Optic)r

Specifications of MAX3646ETG+

• Data Rate: 622Mbps
• Number Of Channels: 1
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 47mA
• Current - Modulation: 85mA
• Current - Bias: 100mA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-TQFN Exposed Pad
• Mounting Type: Surface Mount
• Operating Supply Voltage: 3.3 V
• Supply Current: 47 mA
• Maximum Operating Temperature: + 85 C
• Maximum Power Dissipation: 1805 mW
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TX_DISABLE
(V
CC
OUTPUT
FAULT
LASER
= +3.3V, C
V
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
CC
44
42
40
38
36
34
32
30
0
-10
0
LOW
R
3.3V
R
TEMPERATURE COMPENSATION vs.
R
TH_TEMP
LOW
R
TH_TEMP
TH_TEMP
0
10
R
TH_TEMP
TH_TEMP
10
Laser Driver with Extinction Ratio Control
TRANSMITTER DISABLE
APC
MODULATION CURRENT
20
= 2kΩ
RANDOM JITTER vs.
= 4kΩ
= 7kΩ
20
= 12kΩ
TEMPERATURE (°C)
30
_______________________________________________________________________________________
= 0.01µF, I
30
(R
I
MOD
20ns/div
MODTCOMP
40
40
(mA)
50
50
91.2ns
60
60
HIGH
BIAS
= 10kΩ)
70
70
MAX37646 toc16
80
= 20mA, I
80
90
100
90
TX_DISABLE
TX_DISABLE
MOD
V
OUTPUT
OUTPUT
PC_MON
Typical Operating Characteristics (continued)
FAULT
LASER
FAULT
LASER
155Mbps to 622Mbps SFF/SFP
0.01
V
0.1
= 30mA, T
10
CC
1
0.001
LOW
LOW
0V
COMPENSATION (K) vs. R
HOT PLUG WITH TX_DISABLE LOW
FORCED FAULT
3.3V
0.01
EXTERNALLY
t_init = 59.6ms
A
RESPONSE TO FAULT
= +25°C, unless otherwise noted.)
R
MODBCOMP
0.1
400ns/div
20ms/div
(kΩ)
1
t_fault = 160ns
MODBCOMP
10
MAX3646 toc14
MAX3646 toc17
100
TX_DISABLE
TX_DISABLE
V
OUTPUT
OUTPUT
PC_MON
FAULT
LASER
FAULT
LASER
100
V
90
80
70
60
50
40
30
CC
-10
HIGH
LOW
3.3V
TEMPERATURE COMPENSATION vs.
R
LOW
TH_TEMP
R
R
0
TH_TEMP
TH_TEMP
HIGH
R
TH_TEMP
10
FAULT RECOVERY TIME
TRANSMITTER ENABLE
= 2kΩ
R
20
TH_TEMP
= 4kΩ
TEMPERATURE (°C)
t_on = 23.8μs
t_init = 58ms
EXTERNALLY
FORCED FAULT
= 7kΩ
(R
30
MODTCOMP
40ms/div
10μs/div
= 12kΩ
40
HIGH
50
LOW
60
= 500Ω)
70
LOW
MAX3646 toc15
MAX3646 toc18
LOW
80
5
90