MAX2769ETI+T Maxim Integrated Products, MAX2769ETI+T Datasheet - Page 5

• Manufacturer Part Number: MAX2769ETI+T
• Description: RF Receiver Low-Power GPS and GL ONASS Receiver with
• Manufacturer: Maxim Integrated Products

Specifications of MAX2769ETI+T

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(MAX2769 EV kit, V
is driven from a 50Ω source. All RF measurements are done in the analog output mode with ADC bypassed. PGA gain is set to 51dB
gain by serial-interface word GAININ = 111010. Maximum IF output load is not to exceed 10kΩ || 7.5pF on each pin. Typical values
are at V
120
100
80
60
40
0
CC
5
T
A
PGA GAIN CODE (DECIMAL FORMAT)
10
= +25°C
= 2.85V and T
CASCADED RECEIVER GAIN
15
T
vs. PGA GAIN CODE
A
20
= -40°C
T
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
A
0
25
= +85°C
CC
1
30
_______________________________________________________________________________________
= 2.7V to 3.3V, T
2 3 4
35
LNA1 GAIN AND NOISE FIGURE
vs. LNA1 BIAS DIGITAL CODE
LNA BIAS DIGITAL CODE (DECIMAL)
A
40
= +25°C, unless otherwise noted.)
45
5
50
GAIN
6 7 8 9 10 11
55
60
NOISE FIGURE
65
A
= -40°C to +85°C, PGM = GND. Registers are set to the default power-up states. LNA input
12
2.0
1.5
1.0
0.5
MAX2769 toc04
0
13
-40
14
CASCADED GAIN AND NOISE FIGURE
15
AGC GAIN
25
20
15
10
5
0
-15
vs. TEMPERATURE
TEMPERATURE (°C)
10
NOISE FIGURE
Universal GPS Receiver
35
Typical Operating Characteristics
60
MAX2769 toc02
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-40
85
LNA BIAS = 1000
120
115
110
105
100
95
90
NOISE FIGURE
LNA1 GAIN AND NOISE FIGURE
-15
vs. TEMPERATURE
TEMPERATURE (°C)
10
-10
-20
-30
-40
-50
40
30
20
10
0
0.50
GAIN
35
0.75
60
1.00 1.25
MAX2769 toc05
LNA1 |S21| AND |S12|
vs. FREQUENCY
FREQUENCY (GHz)
|S21|
|S12|
85
19.6
19.4
19.2
19.0
18.8
18.6
18.4
18.2
18.0
17.8
1.50 1.75
2.00
2.25
2.50
5