Instruction Manual

MAX3805
10.7Gbps Adaptive Receive Equalizer
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(Pin 13 (HFPD) and pin 14 (LFPD) are not connected. Typical values are at V
CC
= +3.3V, V
CC1
= V
CC2
= 1.8V, T
A
= +25°C, unless
otherwise noted.) (Values at -40°C are guaranteed by design and characterization.)
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.
Supply Voltage (V
CC
) ............................................-0.5V to +4.0V
CML Supply Voltage
(V
CC1
, V
CC2
) ..........................................-0.5V to (V
CC
+ 0.5V)
Current at SDO±...............................................................±25mA
SDI±, EN, SD, HFPD, LFPD........................-0.5V to (V
CC
+ 0.5V)
Current at HFPD, LFPD ......................................................400µA
Continuous Power Dissipation (T
A
= +85°C)
16-Lead QFN-EP (derate 17.5mW/°C
above +85°C) ............................................................1398mW
Operating Ambient Temperature Range .............-40°C to +85°C
Storage Ambient Temperature Range...............-55°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Current I
CC
V
CC
= V
CC1
= V
CC2
41 60 mA
CML Input Differential Voltage V
IN
AC-coupled or DC-coupled at transmission
line input (Notes 1, 6)
400 1200 mV
P-P
CML Input Common-Mode
Voltage
1.3 V
CC1
V
CML Input Resistance Differential 85 100 115 Ω
CML Input Return Loss 100MHz to 10GHz 10 dB
CML Output Differential Voltage V
OUT
V
CC2
= 1.65V to 3.6V 400 500 600 mV
P-P
CML Output Resistance Differential 85 100 115 Ω
CML Output Transition Time t
r
/t
f
20% to 80% (Notes 2, 6) 35 ps
CML Output Return Loss 100MHz to 5GHz 10 dB
Equalizer Time Constant 10 µs
Output Residual Jitter (Notes 3–6) 21 30 ps
P-P
Signal-Detect Assert PRBS2
31
- 1 at 10.7Gbps (Note 1) 200 mV
P-P
Signal-Detect Deassert PRBS2
31
- 1 at 10.7Gbps (Note 1) 220 mV
P-P
LVCMOS Input-High Leakage
Current
I
H
+10 +60 µA
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
3.0 3.3 3.6 V
Input Termination Voltage V
CC1
1.65 V
CC
V
Output Termination Voltage V
CC2
1.65 V
CC
V
Operating Ambient Temperature -40 +25 +85 °C
OPERATING CONDITIONS