MAX3946ETG+T Maxim Integrated Products, MAX3946ETG+T Datasheet - Page 24

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

Specifications of MAX3946ETG+T

• 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

1.0625Gbps to 11.3Gbps, SFP+ Laser Driver
with Laser Impedance Mismatch Tolerance
Table 6. Register Summary (continued)
24
Modulation
Current
Increment
Setting Register
Address =
H0x0C
Bias Current
Increment
Setting Register
Address =
H0x0D
Mode Control
Register
Address =
H0x0E
Pulse-Width
Control Register
Address =
H0x0F
Deemphasis
Control Register
Address = H0x10
Equalization
Control Register
Address = H0x11
FUNCTION/
REGISTER
ADDRESS
_____________________________________________________________________________________
REGISTER
MODECTRL
SET_TXEQ
SET_TXDE
MODINC
BIASINC
PWCTRL
NAME
SET_
NORMAL
MODE
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
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
R
R
NUMBER/
TYPE
BIT
7
4
3
2
1
0
7
4
3
2
1
0
7
6
5
4
3
2
1
0
3
2
1
0
5
4
3
2
1
0
2
1
SET_PWCTRL[3]
SET_PWCTRL[2]
SET_PWCTRL[1]
SET_PWCTRL[0]
MODECTRL[7]
MODECTRL[6]
MODECTRL[5]
MODECTRL[4]
MODECTRL[3]
MODECTRL[2]
MODECTRL[1]
MODECTRL[0]
SET_IMOD[0]
SET_TXEQ[2]
SET_TXEQ[1]
SET_IBIAS[0]
SET_TXDE[5]
SET_TXDE[4]
SET_TXDE[3]
SET_TXDE[2]
SET_TXDE[1]
SET_TXDE[0]
MODINC[4]
MODINC[3]
MODINC[2]
MODINC[1]
MODINC[0]
BIASINC[4]
BIASINC[3]
BIASINC[2]
BIASINC[1]
BIASINC[0]
BIT NAME
DEFAULT
VALUE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
LSB of SET_IMOD DAC
register address = H0x09
MSB MOD DAC two’s
complement
LSB MOD DAC two’s
complement
LSB of SET_IBIAS DAC
register address = H0x08
MSB bias DAC two’s
complement
LSB bias DAC two’s
complement
MSB mode control
LSB mode control
MSB Tx pulse-width
control
LSB Tx pulse-width con-
trol
MSB Tx deemphasis
LSB Tx deemphasis
Tx equalization
NOTES