GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
AC ELECTRICAL CHARACTERISTICS—MAX2653
(MAX2653 EV kit, f = 1850MHz (DCS band), f = 1960MHz (PCS band), P = -30dBm, input and output matching networks are
IN
IN
IN
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
noted.) (Note 2)
= +3V, T = +25°C, unless otherwise
CC
A
PARAMETER
SYMBOL
CONDITIONS
DCS band
PCS band
MIN
1805
1930
TYP
MAX
1880
1990
UNITS
Input Frequency Range
(Note 3)
f
IN
BAND = V
MHz
CC
DCS and PCS band,
high-gain mode
T
A
T
A
T
A
T
A
= +25°C
17
16
-4
18.5
-2.5
20
20
-1
0
= -40°C to +85°C
= +25°C
(BAND = GAIN = V
)
CC
Power Gain (Note 4)
Noise Figure (Note 4)
G
dB
DCS and PCS band,
low-gain mode (BAND =
, GAIN = GND)
= -40°C to +85°C
-4
V
CC
DCS band
PCS band
1.7
1.8
1.9
High-gain mode
(BAND = GAIN = V
)
CC
2.05
NF
dB
dBm
dB
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
5.3
-8.5
+1.5
-18
-7
6.7
CC
DCS and PCS band, high-gain mode
(BAND = V , GAIN = GND)
-10.5
-1
Input Third-Order
Intercept Point
(Notes 5, 7)
CC
IIP3
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
DCS and PCS band, high-gain mode
-20
-9
(BAND = GAIN = V
)
CC
Input 1dB Compression
Point
IP
-1dB
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
DCS and PCS band, high-gain mode
-11
-11
-12
-15
-8.5
-9.5
-9.5
-12
(BAND = GAIN = V
)
CC
2
Input Return Loss
Output Return Loss
Reverse Isolation
S
dB
11
22
12
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
DCS and PCS band, high-gain mode
(BAND = GAIN = V
)
CC
2
2
S
S
dB
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
DCS band
-35
-33
-21
-21
-31
-29
-18
-18
High-gain mode (BAND
= GAIN = V
)
CC
PCS band
DCS band
PCS band
dB
Low-gain mode (BAND =
, GAIN = GND)
V
CC
Note 2: Minimum and maximum limits are guaranteed by design and characterization, but not production tested.
Note 3: The part has been fully characterized at the specified frequency range. Operation outside of this range is possible but not
guaranteed.
Note 4: Specification excludes circuit board losses.
Note 5: Measured with two tones, f
Note 6: Measured with two tones, f
Note 7: Measured with two tones, f
= 1850MHz, f
= 1850.8MHz, P = -33dBm for each tone.
= 945.8MHz, P = -33dBm for each tone.
IN
IN1
IN1
IN1
IN2 IN
= 945MHz, f
IN2
= 1960MHz, f
= 1960.8MHz, P = -33dBm for each tone.
IN2
IN
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