MAX3946ETG+T Maxim Integrated Products, MAX3946ETG+T Datasheet - Page 2

• 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
ABSOLUTE MAXIMUM RATINGS
V
Current Into TOUT+ and TOUT- .................................... +100mA
Current Into TIN+ and TIN- ............................. -20mA to +20mA
Voltage Range at TIN+, TIN-,
Voltage Range at BIAS ........................................................-0.3V to V
Voltage Range at TOUT+ and TOUT- ....(V
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
Typical values are at V
noted.) (Note 1)
2
POWER SUPPLY
Power-Supply Current
Power-Supply Voltage
Power-Supply Noise
POWER-ON RESET
V
V
DATA INPUT SPECIFICATION
Input Data Rate
Differential Input Voltage
Differential Input Resistance
Differential Input Return Loss
Common-Mode Input Return
Loss
BIAS GENERATOR
Maximum Bias Current
Minimum Bias Current
Bias-Off Current
CC
DISABLE, SDA, SCL, CSEL, FAULT,
BMAX, BMON, and BIAS ...................... -0.3V to (V
CC
CC
CC
______________________________________________________________________________________
, V
= +2.85V to +3.63V, T
for Enable High
for Enable Low
CCT
PARAMETER
, V
CCD
................................................-0.3V to +4.0V
CC
= +3.3V, I
A
= -40°C to +85°C, and Figure 1. Guaranteed by design and characterization from T
SYMBOL
I
I
BIAS
I
BIAS-OFF
BIASMAX
BIASMIN
SDD11
SCC11
CC
V
I
V
R
CC
CC
IN
IN
- 1.3V) to (V
= 60mA, I
Excludes output current through the exter-
nal pullup inductors (Note 2)
DC to 10MHz
10MHz to 20MHz
TXEQ_EN = high, launch amplitude into
FR4 transmission line P 5.5in
TXEQ_EN = low
Part powered on, f P 10GHz
Part powered on, 1GHz P f P 10GHz
Current into BIAS pin, DISABLE = low, and
TX_EN = high
Current into BIAS pin, DISABLE = low, and
TX_EN = high
Current into BIAS pin, DISABLE = high or
TX_EN = low or SET_IBIAS[8:0] = H0x00;
BIAS pin voltage at V
CC
MOD
CC
+ 0.3V)
+ 1.3V)
= 40mA, 25I differential output load, and T
CC
CONDITIONS
Current into BIAS .........................................................................+130mA
Continuous Power Dissipation (T
Storage Temperature Range .......................... -55NC to +150NC
Die Attach Temperature .................................................+400NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
CC
24-Pin TQFN (derate 27.8mW/NC above +70NC) .......2222mW
2.85
0.19
0.15
MIN
2.3
75
80
1
A
A
= +70NC)
= +25°C, unless otherwise
TYP
2.55
2.45
100
68
10
12
10
A
= -40°C to +95°C.
MAX
3.63
2.75
11.3
100
125
100
0.7
1.0
90
10
5
UNITS
mV
Gbps
V
mA
mA
mA
dB
dB
FA
P-P
I
V
V
V
P-P