
M
Compact 155Mbps to 3.2Gbps
Limiting Amplifier
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (V
CC
).................................-0.5V to +6.0V
Voltage at IN+, IN- ..........................(V
CC
- 2.4V) to (V
CC
+ 0.5V)
Voltage at DISABLE, OUTPOL, RSSI,
CAZ1, CAZ2, LOS, TH............................-0.5V to (V
CC
+ 0.5V)
Current into LOS ...................................................-1mA to +9mA
Differential Input Voltage (IN+ - IN-) .....................................2.5V
ELECTRICAL CHARACTERISTICS
(V
CC
= 2.97V to 3.63V, ambient temperature = -40°C to +85°C, CML output load is 50
to V
CC
, C
AZ
= 0.1μF, typical values are at
+25°C, V
CC
= 3.3V, unless otherwise specified. The data input transition time is controlled by a 4th-order Bessel filter with f
-3dB
=
0.75
2.667GHz for all data rates of 2.667Gbps and below, and with f
-3dB
= 0.75
3.2GHz for a data rate of 3.2Gbps.)
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.
Continuous Current at CML Outputs
(OUT+, OUT-) ...............................................-25mA to +25mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin QFN (derate 17.7mW above +70°C) ....................1.4W
Operating Junction Temperature Range (T
J
)....-55°C to +150°C
Storage Ambient Temperature Range (T
s
)........-55°C to +150°C
PARAMETER
SYMBOL
CONDITIONS
MIN
42
TYP
50
13
MAX
58
UNITS
dB
mV
P-P
mV
P-P
dB
mV
P-P
Single-Ended Input Resistance
Input Return Loss
Input Sensitivity
Input Overload
Single-Ended Output Resistance
Output Return Loss
Differential Output Voltage
Single ended to V
CC
Differential, f < 3GHz, DUT is powered on
(Note 1)
(Note 1)
Single ended to V
CC
Differential, f < 3GHz, DUT is powered on
V
IN-MIN
V
IN-MAX
5
1200
42
50
10
780
58
600
1200
Differential Output Signal when
Disabled
Outputs AC-coupled, V
IN-MAX
applied to
input (Note 2)
10
mV
P-P
K28.5 pattern at 3.2Gbps
2
23
- 1 PRBS equivalent pattern at 2.7Gbps
(Note 4)
8.5
25
9.3
30
K28.5 pattern at 2.1Gbps
2
23
- 1 PRBS equivalent pattern at 155Mbps
Input = 5mV
P-P
Input = 10mV
P-P
20% to 80% (Note 2)
7.8
25
6.5
3
86
185
70
0.8
32
25
50
Deterministic Jitter
(Notes 2, 3)
DJ
ps
P-P
Random Jitter
(Note 5)
ps
RMS
Data Output Transition Time
Input-Referred Noise
115
ps
μV
RMS
C
AZ
= open
C
AZ
= 0.1μF
(Note 6)
LOS disabled
f < 2MHz
Low-Frequency Cutoff
kHz
49
37
Power-Supply Current
I
CC
mA
Power-Supply Noise Rejection
LOSS OF SIGNAL at 2.5Gbps
(Notes 2, 7)
LOS Hysteresis
LOS Assert/Deassert Time
Low LOS Assert Level
Low LOS Deassert Level
Medium LOS Assert Level
PSNR
26
dB
10l og ( V
D E A S S E R T
/V
A S S E R T
)
(Note 8)
R
TH
= 20k
R
TH
= 20k
R
TH
= 280
1.25
2
2.8
2.2
dB
μs
100
4.1
6.7
15.2
mV
P-P
mV
P-P
mV
P-P
11.6
10.3