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LNAs with Step Attenuator and VGA
ABSOLUTE MAXIMUM RATINGS
V CC to GND ...........................................................-0.3V to +3.6V
All Pins Excluding Grounds to Pin GND.....-0.3V to (V CC + 0.3V)
LNA Input Power (RX_EN = low) ........................................5dBm
Continuous Power Dissipation (T A = +70°C)
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Soldering Temperature (10s) ...........................................+300°C
12-Pin QFN (derate 11.9mW/°C above +70°C) ...........952mW
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.
DC ELECTRICAL CHARACTERISTICS
(V CC = 2.775V, RX_EN = high, R SET = 1.1k Ω , V AGC = V CC /2, T A = -40°C to +85°C. Typical values are at T A = +25°C, unless other-
wise noted.)
PARAMETER
Supply Voltage
SYMBOL
V CC
CONDITIONS
MIN
2.65
TYP
2.775
MAX
3.30
UNITS
V
RX_EN = low, V CC = 3.3V
0.5
20
μA
Supply Current
Digital Input Logic High
Digital Input Logic Low
Logic Pin Impedance
AGC Pin Impedance
I CC
V IH
V IL
LNA_I = high, RF_ATTN = low
LNA_I = low
Pins LNA_I, RF_ATTN, RX_EN
Pins LNA_I, RF_ATTN, RX_EN
Logic pins RX_EN, RF_ATTN, LNA_I
Pins AGC
0.7 ? V CC
0
50
100
3.5
2.5
5.5
3.5
V CC
0.3 ? V CC
mA
mA
V
V
k Ω
k Ω
AC ELECTRICAL CHARACTERISTICS
(MAX2371/MAX2373 EV Kits, V CC = 2.65V to 3.3V, RX_EN = high, R SET = 1.1k Ω , T A = -40°C to +85°C. Typical values are at V CC =
2.775V; for MAX2371 f RF = 150MHz, for MAX2373 f RF = 850MHz to 940MHz; T A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LNA AND AGC AMP CHARACTERISTICS
Radio Frequency Range (Note 2)
Input Return Loss (S11)
(Note 3)
Reverse Isolation (S12)
Low band (MAX2371)
High band (MAX2373)
LNA_I = high;
RF_ATTN = low
LNA_I = high;
RF_ATTN = high
Over AGC range
LNA_I = high, T A =
MAX2371
MAX2373
MAX2371
MAX2373
MAX2371
MAX2373
MAX2371
136
850
13
150
900
-12
-15
-14
-10
-40
-42
14.5
174
940
-9.5
-9.5
-10
-6.5
-35
-35
16
MHz
dB
dB
Max Power Gain (Note 3)
+25°C, V CC = 2.775V
LNA_I = low, T A =
MAX2373
MAX2371
14
10.5
15.5
12
17
dB
+25°C, V CC = 2.775V
MAX2373
10.5
13
Gain Variation Over Temperature
T A = -40°C to +85°C, V AGC < 1.8V
-2.0
2.0
dB
2
_______________________________________________________________________________________
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