
MAX3964A/MAX3968
+3.0V to +5.5V, 125Mbps to 266Mbps
Limiting Amplifiers with Loss-of-Signal Detector
2
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ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX3964ACEP/MAX3968CEP
(VCC = +3.0V to +5.5V, PECL outputs terminated with 50 to (VCC - 2V), TA = 0°C to +70°C, unless otherwise noted. Typical values
are at VCC = +3.3V and TA = +25°C.) (Note 1)
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.
(SUB, GND tied to ground)
VCC, VCCO.............................................................-0.5V to +7.0V
FILTER, RSSI, IN+, IN-, CZP, CZN, SQUELCH,
LOS+, LOS-, INV, VTH, OUT+, OUT- ......-0.5V to (VCC + 0.5V)
PECL Output Current (OUT+, OUT-, LOS+, LOS-) ............50mA
Differential Voltage Between CZP and CZN..........-1.5V to +1.5V
Differential Voltage Between IN+ and IN- .............-1.5V to +1.5V
Continuous Power Dissipation (TA = +70°C)
20-Lead Thin QFN
(derate 16.9mW/°C above +70°C) ..........................1349mW
20-Pin QSOP (derate 6.7mW/°C above +70°C)...........500mW
Operating Temperature Range ...........................-40°C to +85°C
Operating Junction Temperature Range (die) .....-40°C to +150°C
Processing Temperature (die) ........................................+400°C
Storage Temperature Range .......................... -65°C to +160°C
Lead Temperature (soldering, 10s) ................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current
ICC
PECL outputs open
22
40
mA
LOS Hysteresis
Input = 3.3mVP-P to 90mVP-P (Note 2)
3.8
5
8.0
dB
SQUELCH Input Current
VSQUELCH = VCC, TA = +25°C
27
100
A
PECL Output Voltage High
(Note 3)
-1025
-880
mV
PECL Output Voltage Low
(Note 3)
-1810
-1620
mV
PECL LOS Output Voltage High
(Note 3)
-1035
-880
mV
PECL LOS Output Voltage Low
(Note 3)
-1810
-1620
mV
LOS Assert Accuracy
Input = 7mVP-P or 90mVP-P
-2.5
+2.5
dB
Minimum LOS Assert Input
2.7
mVP-P
Maximum LOS Deassert Input
143
mVP-P
Input Sensitivity
2.0
3.3
mVP-P
Input Overload
1.5
VP-P
20% to 80% transition time, MAX3964A
0.92
1.2
2.20
Output Transition Time
tr, tf
MAX3968
0.4
0.8
1.2
ns
Pulse-Width Distortion
(Note 4)
50
200
ps