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MAX4952
Quad Equalized 1.5/3.0/6.0GT/s
SAS/SATA Redriver
2
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ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +3.0V to +3.6V, CCOUPLE = 12nF, RL = 50
Ω, TA = 0°C to +70°C, unless otherwise noted. Typical values are at VCC = +3.3V,
TA = +25°C.) (Note 2)
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: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations refer to www.maxim-ic.com/thermal-tutorial.
(Voltages referenced to GND.)
VCC ........................................................................-0.3V to +4.0V
All Other Pins..............................................-0.3V to (VCC + 0.3V)
Continuous Current (PE_, EQ_, MODE_)..........................±15mA
Peak Current (for 10kHz, 1% duty cycle)
(IN__, OUT__) .............................................................±100mA
Continuous Power Dissipation (TA = +70°C)
42-Pin TQFN (derate 35.7mW/°C above +70°C) .......2857mW
Junction-to-Case Thermal Resistance (
θJC) (Note 1)
42-Pin TQFN...................................................................2°C/W
Junction-to-Ambient Thermal Resistance (
θJA) (Note 1)
42-Pin TQFN.................................................................28°C/W
Operating Temperature Range...............................0°C to +70°C
Storage Temperature Range .............................-55°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Power-Supply Range
VCC
3.0
3.6
V
EQ_ = PE_ = GND
280
350
Operating Supply Current
ICC
EQ_ = PE_ = VCC
350
440
mA
Standby Supply Current
ISTBY
EN_ = GND
32
40
mA
Input Termination
RRX-SE
Single-ended to VCC
42.5
57.5
Ω
Output Termination
RTX-SE
Single-ended to VCC
42.5
57.5
Ω
AC PERFORMANCE
0.1GHz
≤ f ≤ 0.3GHz
-10
0.3GHz
≤ f ≤ 3.0GHz
-7.9
Differential Input Return Loss
(Note 3)
SDD11
3.0GHz
≤ f ≤ 6.0GHz
0
dB
0.1GHz
≤ f ≤ 0.3GHz
-6
0.3GHz
≤ f ≤ 3.0GHz
-5
Common-Mode Input Return
Loss (Note 3)
SCC11
3.0GHz
≤ f ≤ 6.0GHz
0
dB
0.1GHz
≤ f ≤ 0.3GHz
-10
0.3GHz
≤ f ≤ 3.0GHz
-7.9
Differential Output Return Loss
(Note 3)
SDD22
3.0GHz
≤ f ≤ 6.0GHz
0
dB
0.1GHz
≤ f ≤ 0.3GHz
-6
0.3GHz
≤ f ≤ 3.0GHz
-5
Common-Mode Output Return
Loss (Note 3)
SCC22
3.0GHz
≤ f ≤ 6.0GHz
0
dB
SAS 1.5, 3.0, or 6.0GT/s, MODE_ = GND
275
1600
Differential Input Voltage
VIN-DIFF
SATA 1.5, 3.0, or 6.0GT/s, MODE_ = VCC
225
1600
mVP-P
Input Equalization
EQ
EQ_ = VCC (Note 4)
3
dB
Differential Output Voltage
VOUT-DIFF
f = 750MHz, PE_ = GND
800
1200
mVP-P
Output Preemphasis
PE
PE_ = VCC, Figure 1
3
dB