MAX3981 Datasheet, PDF (2/9 Pages) Maxim Integrated Products – 3.125Gbps XAUI Quad Cable Equalizer

3.125Gbps XAUI Quad Cable Equalizer
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V_CC..............................................-0.5V to +4.0V
Voltage at SDET ........................................+0.5V to (V_CC + 0.5V)
Voltage at IN_± .........................................+0.5V to (V_CC + 0.5V)
Current Out of OUT_±.......................................-25mA to +25mA
Continuous Power Dissipation (T_A = +85°C)
44-Pin QFN-EP (derate 26.3mW/°C above +85°C)....2105mW
Operating Ambient Temperature Range ................0°C to +85°C
Storage Temperature Range .............................-55°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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_CC = +3.0V to +3.6V, input data rate = 3.125Gbps, T_A = 0°C to +85°C. Typical values are at V_CC = +3.3V and T_A = +25°C, unless
otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
Supply Power
EN = TTL low
EN = TTL high
10Hz < f < 100Hz
Supply Noise Tolerance
100Hz < f < 1MHz
1MHz < f < 2.5GHz
Signal Detect Assert
Input signal level to assert SDET (Note 1)
Signal Detect Deassert
Input signal level to deassert SDET (Note 1)
Signal Detect Delay
Delay time in detecting a change in
presence of a signal (Note 4)
Latency
From input to output
CML RECEIVER INPUT
Input Voltage Swing
XAUI transmitter output measured
differentially at point A, Figure 1, using
K28.5 pattern (Note 4)
Return Loss
100MHz to 2.5GHz
Input Resistance
Differential
EQUALIZATION
Residual Jitter
Total jitter (Notes 2, 4)
Deterministic jitter (Note 4)
Random Jitter
(Note 2)
CML TRANSMITTER OUTPUT (into 100Ω ±1Ω)
Output Voltage Swing
Differential swing
Common-Mode Voltage
Transition Time
Differential Skew
Output Resistance
t_f, t_r
20% to 80% (Notes 3, 4)
Difference in 50% crossing between OUT_+
and OUT_- (Note 4)
Single ended
MIN TYP MAX UNITS
0.25
W
0.7
0.9
100
40
mVp-p
10
100
mVp-p
30 mVp-p
10
µs
0.32
ns
200
800 mVp-p
12
dB
80
100 120
Ω
0.3
UIp-p
0.2
1.5
ps_RMS
550
850 mVp-p
V_CC -
0.3
V
60
130
ps
12
ps
40
50
60
Ω
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