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1575MHz/1900MHz Variable-IP3
Low-Noise Amplifiers
AC ELECTRICAL CHARACTERISTICS (MAX2656)
(MAX2656 Evaluation Kit, V CC = +3V, P IN = -30dBm, f IN = 1960MHz, V RFOUT = GND through a 12k ? resistor, R BIAS = 511 ? ±1%, T A
= +25 ° C. Typical values are at V CC = +3V, T A = +25 ° C, unless otherwise noted.) (Note 6)
PARAMETER
Operating Frequency Range (Note 7)
Gain, High-Gain Mode
Gain, Low-Gain Mode
Gain Variation Over Temperature
CONDITIONS
(Note 11)
(Note 12)
T A = -40 ° C to +85 ° C
MIN
1800
12
TYP
13.5
0.8
0.3
MAX
2000
1.2
UNIT
MHz
dB
dB
dB
Gain Step
12.7
dB
Input Third-Order Intercept Point
(Note 13)
Input 1dB Compression Point
R BIAS = 511 ? ± 1%
R BIAS = 715 ? ± 1%
Low-gain mode (Note 12)
High-gain mode (Note 11)
Low-gain mode (Note 12)
1.5
-3
7.2
-7
-1.2
dBm
dBm
Noise Figure (Note 10)
Input Return Loss
Output Return Loss
Reverse Isolation
Gain Step Response Time
High-gain mode (Note 11)
Low-gain mode (Note 12)
High-gain mode (Note 11)
Low-gain mode (Note 12)
High-gain mode (Note 11)
Low-gain mode (Note 12)
High-gain mode (Note 11)
Low-gain mode (Note 12)
1.9
10.8
14.4
19.3
10.7
7.3
28
25
3.2
2.4
dB
dB
dB
dB
μs
Note 1: Devices are production tested at T A = +25 ° C. Minimum and maximum values are guaranteed by design and characteriza-
tion over temperature and supply voltages to ±6 sigma.
Note 2: Minimum DC voltage through a 10k ? resistor that sets the MAX2654/MAX2655 to operate in normal mode and MAX2656 in
low-gain mode.
Note 3: Maximum DC voltage through a 10k ? resistor that sets the MAX2654/MAX2655 to operate in shutdown mode and
MAX2656 in high-gain mode.
Note 4: DC current required when V RFOUT is connected to V CC through a 10k ? resistor.
Note 5: DC current required when V RFOUT is connected to GND through a 10k ? resistor.
Note 6: Guaranteed by design and characterization to ±3 sigma.
Note 7: The part has been characterized at the specified frequency range. Operation outside of this range is possible, but not
guaranteed.
Note 8: Production tested at T A = +25 ° C.
Note 9: Measured with two input tones, f 1 = 1570MHz, f 2 = 1580MHz, both at -30dBm per tone.
Note 10: Excludes PC board losses of 0.2dB for MAX2654/MAX2655 and 0.25dB for MAX2656.
Note 11: High-gain mode is set up by connecting RFOUT to GND through a 12k ? resistor.
Note 12: Low-gain mode is set up by connecting RFOUT to V CC through a 12k ? resistor.
Note 13: Measured with two input tones, f 1 = 1955MHz, f 2 = 1965MHz, both at -30dBm per tone.
4
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