MAX3946ETG+ Maxim Integrated Products, MAX3946ETG+ Datasheet - Page 23

• Manufacturer Part Number: MAX3946ETG+
• Description: IC LASER DVR SFP 11.3GBPS 24TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Driverr

Specifications of MAX3946ETG+

• Data Rate: 11.3Gbps
• Number Of Channels: 1
• Voltage - Supply: 2.85 V ~ 3.63 V
• Current - Supply: 68mA
• Current - Modulation: 80mA
• Current - Bias: 80mA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 12-WFQFN, Exposed Pad
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 6. Register Summary (continued)
Transmitter
Status Register 2
Address =
H0x07
Bias Current
Setting Register
Address =
H0x08
Modulation
Current Setting
Register
Address =
H0x09
Maximum
Modulation
Current Setting
Register
Address =
H0x0A
Maximum Bias
Current Setting
Register
Address =
H0x0B
FUNCTION/
REGISTER
ADDRESS
1.0625Gbps to 11.3Gbps, SFP+ Laser Driver
with Laser Impedance Mismatch Tolerance
______________________________________________________________________________________
REGISTER
SET_IBIAS
SET_IMOD
IMODMAX
IBIASMAX
TXSTAT2
NAME
NORMAL
REG_ADDR = H0x0D
REG_ADDR = H0x0C
Accessible through
Accessible through
MODE
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
SETUP
MODE
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
R
R
R
NUMBER/
3 (sticky)
2 (sticky)
1 (sticky)
TYPE
BIT
7
6
5
4
3
2
1
0
7
7
6
5
4
3
2
1
0
7
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
SET_IMOD[8]
SET_IMOD[7]
SET_IMOD[6]
SET_IMOD[5]
SET_IMOD[4]
SET_IMOD[3]
SET_IMOD[2]
SET_IMOD[1]
SET_IMOD[0]
SET_IBIAS[8]
SET_IBIAS[7]
SET_IBIAS[6]
SET_IBIAS[5]
SET_IBIAS[4]
SET_IBIAS[3]
SET_IBIAS[2]
SET_IBIAS[1]
SET_IBIAS[0]
IMODMAX[7]
IMODMAX[6]
IMODMAX[5]
IMODMAX[4]
IMODMAX[3]
IMODMAX[2]
IMODMAX[1]
IMODMAX[0]
IBIASMAX[7]
IBIASMAX[6]
IBIASMAX[5]
IBIASMAX[4]
IBIASMAX[3]
IBIASMAX[2]
IBIASMAX[1]
IBIASMAX[0]
BIT NAME
IMODERR
IBIASERR
TXED
DEFAULT
VALUE
X
X
X
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
Warning increment result
> IMODMAX
Warning increment result
> IBIASMAX
Tx edge detection
MSB bias DAC
LSB bias DAC
MSB modulation DAC
LSB modulation DAC
MSB modulation limit
LSB modulation limit
MSB bias limit
LSB bias limit
NOTES
23