Maxim Integrated MAX2771 - Page 12

(MAX2771 EV kit, V
CC
= 2.7V to 3.3V, T
A
= -40°C to +85°C. Registers are set to the default power-up states. LNA input is driven from
a 50Ω source. LNA input has specied external matching circuit. All RF measurements are done in the analog output mode with ADC
bypassed. PGA gain is set to GAININ = 111010 except for IF lter response plots in which case it is set to GAININ = 000100. For IF lter
response plots, MIXPOLE = 1. Maximum IF output load is not to exceed 10kΩ||7.5pF on each pin. Typical values are at V
CC
= 2.85V
and T
A
= +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
-50
-40
-30
-20
-10
0
10
0 3 6 9 12 15
MAGNITUDE (dB)
BASEBAND FREQUENCY (MHz)
3
RD
-ORDER LOW-PASS FILTER RESPONSE
vs. BASEBAND FREQUENCY (FBW = 111)
toc19
40
50
60
70
80
90
100
110
120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
LOW-BAND CASCADED GAIN (dB)
PGA GAIN CODE (°)
LOW-BAND CASCADED GAIN
vs. PGA GAIN CODE
toc22
T
A
= +85°C
T
A
= -40°C
T
A
= 25°C
-50
-40
-30
-20
-10
0
10
0 3 6 9 12 15
MAGNITUDE (dB)
BASEBAND FREQUENCY (MHz)
5
TH
-ORDER LOW-PASS FILTER RESPONSE
vs. BASEBAND FREQUENCY (FBW = 111)
toc20
0
0.5
1
1.5
2
2.5
95
100
105
110
115
120
-40 -15 10 35 60 85
HIGH-
BAND NOISE FIGURE (dB)
HIGH-
BAND CASCADED GAIN (dB)
TEMPERATURE (°C)
HIGH-BAND CASCADED GAIN AND NOISE FIGURE
vs. TEMPERATURE
toc23
NOISE FIGURE
GAIN
40
50
60
70
80
90
100
110
120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
HIGH-
BAND CASCADED GAIN (dB)
PGA GAIN CODE (°)
HIGH-BAND CASCADED GAIN
vs. PGA GAIN CODE
toc21
T
A
= +85°C
T
A
= -40°C
T
A
= 25°C
0
0.5
1
1.5
2
2.5
95
100
105
110
115
120
-40 -15 10 35 60 85
LOW-
BAND CASCADED NOISE FIGURE (dB)
LOW-
BAND CASCADED GAIN (dB)
TEMPERATURE (°C)
LOW-BAND CASCADED GAIN AND NOISE FIGURE
vs. TEMPERATURE
toc24
NOISE FIGURE
GAIN
-50
-40
-30
-20
-10
0
10
0 3 6 9 12 15 18 21 24 27 30
MAGNITUDE (dB)
BASEBAND FREQUENCY (MHz)
3
RD
-ORDER LOW-PASS FILTER RESPONSE
vs. BASEBAND FREQUENCY (FBW = 100)
toc17
-50
-40
-30
-20
-10
0
10
0 3 6 9 12 15 18 21 24 27 30
MAGNITUDE (dB)
BASEBAND FREQUENCY (MHz)
5
TH
-ORDER LOW-PASS FILTER RESPONSE
vs. BASEBAND FREQUENCY (FBW = 100)
toc18
Maxim Integrated │ 12
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MAX2771 Multiband Universal GNSS Receiver