MAX3643ETG+T Maxim Integrated Products, MAX3643ETG+T Datasheet - Page 8

• Manufacturer Part Number: MAX3643ETG+T
• Description: IC LASR DRVR 2.5GBPS 3.6V 24TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Driver (Fiber Optic)r

Specifications of MAX3643ETG+T

• Data Rate: 2.5Gbps
• Number Of Channels: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 32mA
• Current - Modulation: 85mA
• Current - Bias: 70mA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-TQFN Exposed Pad
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

155Mbps to 2.5Gbps Burst-Mode Laser Driver
8
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15, 18
PIN
10
11
12
13
14
16
17
19
20
21
22
23
24
—
1
2
3
4
5
6
7
8
9
BENOUT
MODSET
BIASSET
BCMON
MDOUT
VMSET
VBSET
NAME
BIAS+
BEN+
BIAS-
OUT+
MDIN
V
BEN-
IMAX
V
OUT-
VREF
V
GND
IN+
IN-
CCA
CCO
EP
CCS
Analog Supply Voltage
Noninverted Data Input, LVPECL Compatible
Inverted Data Input, LVPECL Compatible
Signal Supply Voltage
Noninverted Burst-Enable Input, LVPECL Compatible
Inverted Burst-Enable Input, LVPECL Compatible
Burst-Enable Output, LVCMOS. Signal replicates BEN input.
Enable Input LVCMOS. Active low enables BIAS± and OUT± outputs.
Bias Current Monitor. Current out of this pin develops a ground-referenced voltage across an
external resistor proportional to the bias current.
Current-Limit Reference. Connect a resistor from IMAX to GND to set maximum I
Monitor Diode Out. Analog Output for sample/hold.
Monitor Diode In. Analog Input for sample/hold.
Connect BIAS- to V
Laser Bias Current Output. Modulation current flows into this pin when BEN input is high.
Output Supply Voltage
Laser Modulation Current Output. Modulation current flows into this pin when both BEN and IN
inputs are high.
Connect OUT- to Laser Diode Anode Through a 15
Supply Ground. This pin must be connected to ground.
Modulation Current Set. Current from this pin to ground sets the laser modulation current.
MODSET Reference. A ground-referenced voltage at this point establishes the MODSET reference.
Reference Voltage Output. May be used for VMSET, VBSET.
BIASSET Reference. A ground-referenced voltage at this point establishes the BIASSET reference.
Bias Current Set. Current from this pin to ground sets the laser bias current.
Exposed Paddle (Ground). The exposed pad must be soldered to the circuit board ground for proper
thermal and electrical operation.
CC
Through a 10
Resistor and Switching Diode
FUNCTION
Resistor and Switching Diode
Pin Description
BIAS
plus I
MOD
.