Compact 155Mbps to 3.2Gbps
Limiting Amplifier
ABSOLUTE MAXIMUM RATINGS
Power-Supply Voltage (V ).................................-0.5V to +6.0V
Continuous Current at CML Outputs
CC
Voltage at IN+, IN- ..........................(V
Voltage at DISABLE, OUTPOL, RSSI,
- 2.4V) to (V
+ 0.5V)
(OUT+, OUT-) ...............................................-25mA to +25mA
CC
CC
Continuous Power Dissipation (T = +70°C)
A
CAZ1, CAZ2, LOS, TH............................-0.5V to (V
+ 0.5V)
16-Pin QFN (derate 17.7mW above +70°C) ....................1.4W
CC
Current into LOS ...................................................-1mA to +9mA
Differential Input Voltage (IN+ - IN-) .....................................2.5V
Operating Junction Temperature Range (T )....-55°C to +150°C
J
Storage Ambient Temperature Range (T )........-55°C to +150°C
s
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.
ELECTRICAL CHARACTERISTICS
(V
= 2.97V to 3.63V, ambient temperature = -40°C to +85°C, CML output load is 50 to V , C = 0.1µF, typical values are at
CC
CC AZ
+25°C, V
= 3.3V, unless otherwise specified. The data input transition time is controlled by a 4th-order Bessel filter with f
=
CC
-3dB
UNITS
dB
0.75 ✕ 2.667GHz for all data rates of 2.667Gbps and below, and with f
= 0.75 ✕ 3.2GHz for a data rate of 3.2Gbps.)
-3dB
PARAMETER
Single-Ended Input Resistance
Input Return Loss
SYMBOL
CONDITIONS
MIN
TYP
50
MAX
Single ended to V
42
58
CC
Differential, f < 3GHz, DUT is powered on
13
Input Sensitivity
V
(Note 1)
(Note 1)
5
mV
mV
IN-MIN
P-P
P-P
Input Overload
V
1200
42
IN-MAX
Single-Ended Output Resistance
Output Return Loss
Single ended to V
50
10
58
CC
Differential, f < 3GHz, DUT is powered on
dB
Differential Output Voltage
600
780
1200
10
mV
P-P
Differential Output Signal when
Disabled
Outputs AC-coupled, V
input (Note 2)
applied to
IN-MAX
mV
P-P
K28.5 pattern at 3.2Gbps
8.5
9.3
25
223- 1 PRBS equivalent pattern at 2.7Gbps
(Note 4)
30
Deterministic Jitter
(Notes 2, 3)
DJ
ps
P-P
K28.5 pattern at 2.1Gbps
7.8
25
6.5
3
25
50
223- 1 PRBS equivalent pattern at 155Mbps
Input = 5mV
P-P
Random Jitter
(Note 5)
ps
RMS
Input = 10mV
P-P
Data Output Transition Time
Input-Referred Noise
20% to 80% (Note 2)
86
185
70
0.8
32
115
ps
µV
RMS
C
C
= open
= 0.1µF
AZ
AZ
Low-Frequency Cutoff
kHz
(Note 6)
49
37
Power-Supply Current
I
mA
dB
CC
LOS disabled
f < 2MHz
Power-Supply Noise Rejection
PSNR
26
LOSS OF SIGNAL at 2.5Gbps (Notes 2, 7)
LOS Hysteresis
10log (V
(Note 8)
/V
)
1.25
2
2.2
dB
µs
DEASSERT ASSERT
LOS Assert/Deassert Time
Low LOS Assert Level
100
R
TH
R
TH
R
TH
= 20k
2.8
4.1
6.7
mV
P-P
P-P
P-P
Low LOS Deassert Level
Medium LOS Assert Level
= 20k
= 280
11.6
mV
mV
10.3
15.2
2
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