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.
Package Thermal Characteristics
(Note 1)
TQFN
Junction-to-Case Thermal Resistance (θ
JC
) .................2°C/W
Junction-to-Ambient Thermal Resistance (θ
JA
) ..............28°C/W
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.maximintegrated.com/thermal-tutorial.
(V
CC
= +3.0V to +3.6V, C
COUPLE
= 12nF, R
L
= 50Ω, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.3V,
T
A
= +25°C.) (Note 2)
PARAMETER
Operating Power-Supply Range
Operating Supply Current
Standby Supply Current
Input Termination
Output Termination
AC PERFORMANCE
Differential Input Return Loss
(Note 3)
0.1GHz ≤ f ≤ 0.3GHz
S
DD11
0.3GHz ≤ f ≤ 3.0GHz
3.0GHz ≤ f ≤ 6.0GHz
0.1GHz ≤ f ≤ 0.3GHz
S
CC11
0.3GHz ≤ f ≤ 3.0GHz
3.0GHz ≤ f ≤ 6.0GHz
0.1GHz ≤ f ≤ 0.3GHz
S
DD22
0.3GHz ≤ f ≤ 3.0GHz
3.0GHz ≤ f ≤ 6.0GHz
0.1GHz ≤ f ≤ 0.3GHz
S
CC22
0.3GHz ≤ f ≤ 3.0GHz
3.0GHz ≤ f ≤ 6.0GHz
V
IN-DIFF
EQ
V
OUT-DIFF
PE
SAS 1.5, 3.0, or 6.0GT/s, MODE_ = GND
SATA 1.5, 3.0, or 6.0GT/s, MODE_ = V
CC
EQ_ = V
CC
(Note 4)
f = 750MHz, PE_ = GND
PE_ = V
CC
, Figure 1
750
3
-10
-7.9
0
-6
-5
0
-10
-7.9
0
-6
-4
0
275
225
3
1200
1600
1600
mV
P-P
dB
mV
P-P
dB
dB
dB
dB
dB
SYMBOL
V
CC
I
CC
I
STBY
R
RX-SE
R
TX-SE
EQ_ = PE_ = GND
EQ_ = PE_ = V
CC
EN_ = GND
Single-ended to V
CC
Single-ended to V
CC
42.5
42.5
CONDITIONS
MIN
3.0
280
350
32
TYP
MAX
3.6
350
440
40
57.5
57.5
UNITS
V
mA
mA
Ω
Ω
Electrical Characteristics
Common-Mode Input Return Loss
(Note 3)
Differential Output Return Loss
(Note 3)
Common-Mode Output Return
Loss (Note 3)
Differential Input Voltage
Input Equalization
Differential Output Voltage
Output Preemphasis
www.maximintegrated.com
Maxim Integrated
│
2
MAX14980
Ruggedized Quad SAS/SATA Redriver/Equalizer
with Extended Operating Temperature
(V
CC
= +3.0V to +3.6V, C
COUPLE
= 12nF, R
L
= 50Ω, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.3V,
T
A
= +25°C.) (Note 2)
PARAMETER
Propagation Delay
Output Transition Time
Differential Output Skew Same
Pair
Deterministic Jitter
Random Jitter
OOB Squelch Threshold
OOB Squelch Entry Time
OOB Exit Time
OOB Differential Offset Delta
OOB Common-Mode Offset Delta
OOB Output Disable
CONTROL LOGIC INPUTS
Input Logic-High
Input Logic-Low
Input Logic Hysteresis
Input Leakage Current
V
IH
V
IL
V
HYST
I
IN
V
CC
= 3.3V, V
IN
= 0.5V or 1.5V
-50
75
+50
1.4
0.6
V
V
mV
µA
SYMBOL
t
PD
T
TX-RF
T
SK
T
DJ
T
RJ
V
SQ-DIFF
T
OOB,SQ
T
OOB,EX
∆V
OOB,DIFF
∆V
OOB,CM
V
OOB,OUT
K28.5 pattern, 6.0GT/s, PE_ = EQ_ = GND
(Note 3)
D10.2 pattern, 6.0GT/s, PE_ = EQ_ = GND
MODE_ = GND, f = 0.75GHz
MODE_ = V
CC
, f = 0.75GHz
f = 0.75GHz (Note 3)
f = 0.75GHz (Note 3)
Difference between OOB and active-mode
output offset
Difference between OOB and active-mode
output common-mode voltage
OOB disabled output level
-50
-30
120
75
CONDITIONS
PE_ = EQ_ = GND
PE_ = GND, 20% to 80%
30
10
23
1.8
220
200
5
9
+50
+30
30
MIN
TYP
300
MAX
UNITS
ps
ps
ps
ps
P-P
ps
RMS
mV
P-P
ns
ns
mV
mV
mV
P-P
Electrical Characteristics (continued)
Note 2:
All devices are 100% production tested at T
A
= +85°C. All temperature limits are guaranteed by design.
Note 3:
Guaranteed by design.
Note 4:
EQ (input equalization) as employed in this device refers to the equivalent of adding preemphasis before the input. For
example, input EQ of 3dB would show the same waveform as output PE of 3dB (see Figure 1).
Timing Diagram
V
LOW_PP
V
HIGH_PP
PE(dB) = 20log
[(
V
HIGH_PP
V
LOW_PP
)]
Figure 1. Output Preemphasis
www.maximintegrated.com
Maxim Integrated
│
3
MAX14980
Ruggedized Quad SAS/SATA Redriver/Equalizer
with Extended Operating Temperature
Typical Operating Characteristics
(V
CC
= +3.3V, T
A
= +25°C, all eye diagrams measured using K28.5 pattern.)
V
IN
= 275mV
P-P
, 1.5Gbps, PE = 0, EQ = 0
MAX14980 toc01
V
IN
= 275mV
P-P
, 3Gbps, PE = 0, EQ = 0
EYE DIAGRAM VOLTAGE (200mV/div)
400
200
0
-200
-400
MAX14980 toc02
600
EYE DIAGRAM VOLTAGE (200mV/div)
400
200
0
-200
-400
-600
V
IN
= 275mV
P-P
, 6Gbps, PE = 0, EQ = 0
MAX14980 toc03
EYE DIAGRAM VOLTAGE (200mV/div)
400
200
0
-200
-400
-400
-200
0
200ps/div
200
400
-200
-100
0
100ps/div
100
200
-100
-50
0
50ps/div
50
100
800
EYE DIAGRAM VOLTAGE (200mV/div)
600
400
200
0
-200
-400
-600
-800
V
IN
= 275mV
P-P
, 1.5Gbps, PE = 1, EQ = 0
MAX14980 toc04
800
EYE DIAGRAM VOLTAGE (200mV/div)
600
400
200
0
-200
-400
-600
-800
V
IN
= 275mV
P-P
, 3Gbps, PE = 1, EQ = 0
MAX14980 toc05
-400
-200
0
200ps/div
200
400
-200
-100
0
100ps/div
100
200
800
EYE DIAGRAM VOLTAGE (200mV/div)
600
400
200
0
-200
-400
-600
-800
V
IN
= 275mV
P-P
, 6Gbps, PE = 1, EQ = 0
MAX4952 toc06
600
EYE DIAGRAM VOLTAGE (200mV/div)
400
200
0
-200
-400
-600
V
IN
= 1600mV
P-P
, 1.5Gbps, PE = 0, EQ = 0
MAX14980 toc07
-100
-50
0
50ps/div
50
100
-400
-200
0
200ps/div
200
400
www.maximintegrated.com
Maxim Integrated
│
4
MAX14980
Ruggedized Quad SAS/SATA Redriver/Equalizer
with Extended Operating Temperature
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, T
A
= +25°C, all eye diagrams measured using K28.5 pattern.)
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