Owner's manual

MAX2651/MAX2652/MAX2653
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
_______________________________________________________________________________________ 7
AC ELECTRICAL CHARACTERISTICS—MAX2653
(MAX2653 EV kit, f
IN
= 1850MHz (DCS band), f
IN
= 1960MHz (PCS band), P
IN
= -30dBm, input and output matching networks are
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
CC
= +3V, T
A
= +25°C, unless otherwise
noted.) (Note 2)
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
IN1
= 1850MHz, f
IN2
= 1850.8MHz, P
IN
= -33dBm for each tone.
Note 6: Measured with two tones, f
IN1
= 945MHz, f
IN2
= 945.8MHz, P
IN
= -33dBm for each tone.
Note 7: Measured with two tones, f
IN1
= 1960MHz, f
IN2
= 1960.8MHz, P
IN
= -33dBm for each tone.
PCS band
DCS band
PCS band
DCS band
1.8 2.05
-4 0
16 20
1930 1990
-21 -18
-33 -29
PCS band
DCS band
PCS band
DCS band
DCS and PCS band, low-gain mode
(BAND = V
CC
, GAIN = GND)
High-gain mode (BAND
= GAIN = V
CC
)
Reverse Isolation

S
12

2
-35 -31
dB
-21 -18
Low-gain mode (BAND =
V
CC
, GAIN = GND)
DCS and PCS band, high-gain mode
(BAND = GAIN = V
CC
)
Output Return Loss

S
22

2
-12 -9.5
dB
-15 -12
DCS and PCS band, low-gain mode
(BAND = V
CC
, GAIN = GND)
DCS and PCS band, high-gain mode
(BAND = GAIN = V
CC
)
Input Return Loss

S
11

2
-11 -8.5
dB
-11 -9.5
DCS and PCS band, low-gain mode
(BAND = V
CC
, GAIN = GND)
-1 +1.5
DCS and PCS band, high-gain mode
(BAND = GAIN = V
CC
)
PARAMETER SYMBOL MIN TYP MAX UNITS
Noise Figure (Note 4) NF
1.7 1.9
-4 -2.5 -1
17 18.5 20
5.3 6.7
dB
Input Third-Order
Intercept Point
(Notes 5, 7)
IIP3
-10.5 -8.5
dBm
Input Frequency Range
(Note 3)
f
IN
1805 1880
MHz
Power Gain (Note 4) G dB
Input 1dB Compression
Point
IP
-1dB
-20 -18
dB
-9 -7
CONDITIONS
High-gain mode
(BAND = GAIN = V
CC
)
DCS and PCS band,
low-gain mode (BAND =
V
CC
, GAIN = GND)
DCS and PCS band,
high-gain mode
(BAND = GAIN = V
CC
)
DCS and PCS band, low-gain mode
(BAND = V
CC
, GAIN = GND)
DCS and PCS band, low-gain mode
(BAND = V
CC
, GAIN = GND)
DCS and PCS band, high-gain mode
(BAND = V
CC
, GAIN = GND)
BAND = V
CC
T
A
= +25°C
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= -40°C to +85°C