MAX3841
12.5Gbps CML 2
× 2 Crosspoint Switch
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +3.0V to +3.6V, VCC_IN = +1.71V to VCC, VCC_OUT = +1.71V to VCC, TA = -40°C to +85°C. Typical values are at VCC =
+3.3V, VCC_IN = VCC_OUT = 1.8V, TA = +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.
Note 1: Guaranteed by design and characterization.
Note 2: Differential swing is defined as VIN = (IN_+) - (IN_-) and VOUT = (OUT_+) - (OUT_-). See Figure 1.
Note 3: Measured using a 0000011111 pattern at 12.5Gbps, and VIN = 400mVP-P differential.
Note 4: Measured at 9.953Gbps using a pattern of 100 ones, 27 - 1 PRBS, 100 zeros, 27 - 1 PRBS, and at 12.5Gbps using a ±K28.5
pattern. VCC_IN = VCC_OUT = 1.8V, and VIN = 400mVP-P differential.
Note 5: Refer to Application Note 1181:
HFAN-04.5.1: Measuring Random Jitter on a Digital Sampling Oscilloscope.
Supply Voltage, VCC..............................................-0.5V to +4.0V
CML Supply Voltage (VCC_IN, VCC_OUT)...........-0.5V to +4.0V
Continuous Output Current (OUT1
±, OUT2±)...................±25mA
CML Input Voltage (IN1
±, IN2±)...........-0.5V to (VCC_IN + 0.5V)
LVCMOS Input Voltage (SEL1, SEL2,
ENO1, ENO2) .........................................-0.5V to (VCC + 0.5V)
Continuous Power Dissipation (TA = +85°C)
24-Pin Thin QFN (derate 20.8mW/°C
above +85°C).............................................................1352mW
Operating Temperature Range ...........................-40°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
Core Supply Current
ICC
Excluding CML termination currents
65
90
mA
Data Rate
(Note 1)
0
12.5
Gbps
CML Input Differential
VIN
AC-coupled or DC-coupled (Note 2)
150
1200
mVP-P
CML Input Common Mode
DC-coupled
VCC_IN - 0.3
VCC_IN
V
CML Input Termination
Single ended
42.5
50
57.5
CML Input Return Loss
Up to 10GHz
12
dB
CML Output Differential
VOUT
(Note 2)
400
500
600
mVP-P
CML Output Termination
Single ended
42.5
50
57.5
CML Output Transition Time
tR, tF
20% to 80% (Notes 1, 3)
30
ps
Deterministic Jitter
(Notes 1, 4)
10
psP-P
Random Jitter
VIN = 150mVP-P (Notes 1, 5)
0.3
0.7
psRMS
Propagation Delay
Any input to output (Note 1)
100
140
ps
Channel-to-Channel Skew
(Note 1)
12
ps
Output Duty-Cycle Skew
50% input duty cycle (Notes 1, 3)
8
ps
LVCMOS Input Current
IIH, IIL
-10
+10
μA
LVCMOS Input High Voltage
VIH
1.7
V
LVCMOS Input Low Voltage
VIL
0.7
V