Datasheet

MAX3800
3.2Gbps Adaptive Equalizer
and Cable Driver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +3.14V to +3.46V, T
A
= 0°C to +85°C. Typical values are at V
CC
= +3.3V and T
A
= +25°C, unless otherwise noted.)
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 +6.0V
Voltage at LOS, RMOD, and CIM...............-0.5V to (V
CC
+ 0.5V)
Voltage at EIN+, EIN-, DIN+, DIN- .....(V
CC
- 1V) to (V
CC
+ 0.5V)
Current Out of EOUT+, EOUT-, DOUT+, DOUT- ................25mA
Continuous Power Dissipation (T
A
= +85°C)
32-Pin TQFP-EP (derate 22.2mW/°C above +85°C) ...1444mW
Operating Ambient Temperature Range ................0°C to +85°C
Storage Temperature Range .............................-55°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Supply Current I
CC
Includes external load current (Note 1) 65 85 mA
CABLE DRIVER INPUT SPECIFICATIONS
Input Voltage (Single-Ended)
V
DIN+,
V
DIN-
V
CC
- 0.6
V
CC
+ 0.2
V
Input Voltage (Differential) V
DIN
V
DIN
= (V
DIN+
) - (V
DIN-
)
400 1100
mVp-p
Input Impedance Single-ended 45 55 65 Ω
CABLE DRIVER OUTPUT SPECIFICATIONS
R
MOD
= 10kΩ (Note 2)
750 870 1000
mVp-p
Output Voltage
(Differential)
R
MOD
= 20kΩ (Note 2)
400 450
550
mVp-p
Output Impedance Single-ended 50
62.5
75 Ω
CABLE EQUALIZER INPUT SPECIFICATIONS
M i ni m um C ab l e Inp ut ( D i ffer enti al )
3.2Gbps, 30dB cable loss at 1.6GHz (Note 3) 650
700
mVp-p
M axi m um C ab l e Inp ut ( D i ffer enti al )
1100
mVp-p
Input Impedance Single-ended 45 55 65 Ω
CABLE EQUALIZER OUTPUT SPECIFICATIONS
Output Voltage (Differential) (Note 2)
500 1000
mVp-p
Output Impedance Single-ended 50
62.5
75 Ω
V ol tag e at C IM Outp ut ( D i ffer enti al )
V
CIM
No external load, V
CIM
= (V
CIM+
) - (V
CIM-
)
-0.5 +0.5
Vp-p
Voltage at CIM Output
(Single-Ended)
V
CIM+,
V
CIM-
No external load 0.5
V
CC
- 0.5
V
Output high (Note 4) 2.4 V
Voltage at LOS
Output low (Note 4) 0.4 V
Outp ut C om m on- M od e V ol tag e Each output DC-coupled 50Ω to V
CC
V
CC
- 0.2 V