Datasheet
MAX3841
12.5Gbps CML 2
×
2 Crosspoint Switch
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to +3.6V, VCC_IN = +1.71V to V
CC
, VCC_OUT = +1.71V to V
CC
, T
A
= -40°C to +85°C. Typical values are at V
CC
=
+3.3V, VCC_IN = VCC_OUT = 1.8V, 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.
Note 1: Guaranteed by design and characterization.
Note 2: Differential swing is defined as V
IN
= (IN_+) - (IN_-) and V
OUT
= (OUT_+) - (OUT_-). See Figure 1.
Note 3: Measured using a 0000011111 pattern at 12.5Gbps, and V
IN
= 400mV
P-P
differential.
Note 4: Measured at 9.953Gbps using a pattern of 100 ones, 2
7
- 1 PRBS, 100 zeros, 2
7
- 1 PRBS, and at 12.5Gbps using a ±K28.5
pattern. VCC_IN = VCC_OUT = 1.8V, and V
IN
= 400mV
P-P
differential.
Note 5: Refer to Application Note 1181:
HFAN-04.5.1: Measuring Random Jitter on a Digital Sampling Oscilloscope
.
Supply Voltage, V
CC
..............................................-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 (V
CC
+ 0.5V)
Continuous Power Dissipation (T
A
= +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 I
CC
Excluding CML termination currents 65 90 mA
Data Rate (Note 1) 0 12.5 Gbps
CML Input Differential V
IN
AC-coupled or DC-coupled (Note 2) 150 1200 mV
P-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 V
OUT
(Note 2) 400 500 600 mV
P-P
CML Output Termination Single ended 42.5 50 57.5
CML Output Transition Time t
R
, t
F
20% to 80% (Notes 1, 3) 30 ps
Deterministic Jitter (Notes 1, 4) 10 ps
P-P
Random Jitter V
IN
= 150mV
P-P
(Notes 1, 5) 0.3 0.7 ps
RMS
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 I
IH
, I
IL
-10 +10 μA
LVCMOS Input High Voltage V
IH
1.7 V
LVCMOS Input Low Voltage V
IL
0.7 V