MAX2831ETM+ Maxim Integrated Products, MAX2831ETM+ Datasheet - Page 11

• Manufacturer Part Number: MAX2831ETM+
• Description: RF Transceiver 2.4GHz to 2.5GHz, 80 2.11g RF Transceiver
• Manufacturer: Maxim Integrated Products

Specifications of MAX2831ETM+

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

(MAX2831 EV kit, V
SCLK = DIN = low.)
15
14
13
12
11
10
67
66
65
64
63
62
61
-1
-2
-3
-4
-5
-6
-7
9
8
7
6
5
4
3
2
1
0
0
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
-65
15
Rx IN-BAND OUTPUT P-1dB vs. GAIN
P
IN
OFDM EVM WITH OFDM JAMMER
= -62dBm
25
GAIN SWITCH POINT
LNA MEDIUM/LOW-
vs. OFFSET FREQUENCY
T
-55
f
A
OFFSET
35
= -40°C
Rx I
CC_
P
JAMMER
= 25MHz
______________________________________________________________________________________
45
GAIN (dB)
f
CC
OFFSET
V
CC
T
LNA MEDIUM/HIGH-
GAIN SWITCH POINT
-45
= 2.8V, V
A
vs. V
(V)
= +85°C
(dBm)
55
= 20MHz
f
OFFSET
CC
75
-35
T
= 40MHz
A
CCPA
= +25°C
RF Transceivers with Integrated PA
85
= V
-25
95
CCTXPA
-100
-110
-120
-130
-140
22
20
18
16
14
12
10
-40
-50
-60
-70
-80
-90
45
40
35
30
25
20
15
10
8
6
4
2
0
5
0
= 3.3V, T
-80 -70 -60 -50 -40 -30 -20 -10
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
DC
LNA = HIGH GAIN
Rx EMISSION SPECTRUM, LNA INPUT
LNA = MEDIUM GAIN
2.4GHz to 2.5GHz 802.11g/b
vs. BASEBAND GAIN SETTINGS
A
BASEBAND GAIN SETTINGS
= +25°C, f
Rx EVM vs. P
NOISE FIGURE
P
IN
(dBm)
LNA = LOW GAIN
LNA = HIGH GAIN
LNA = MEDIUM GAIN
Typical Operating Characteristics
LO
LNA = LOW GAIN
RBW = 300kHz
LNA = LOW GAIN
IN
= 2.437GHz, f
MAX2831/32 toc08
26.5GHz
0
REF
100
3.0
2.5
2.0
1.5
1.0
0.5
-10
-15
-20
-25
-30
= 40MHz, SHDN = CS = high, RXHP =
90
80
70
60
50
40
30
20
10
-5
0
0
2300
-29 -27 -25 -23 -21 -19 -17 -15 -13 -11 -9
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
LNA = HIGH GAIN
P
LOW GAIN
LNA = HIGH GAIN
MID GAIN
IN
= -50dBm
vs. BASEBAND GAIN SETTING
2350
LNA INPUT RETURN LOSS
BASEBAND GAIN SETTINGS
vs. RF FREQUENCY
Rx VOLTAGE GAIN
Rx EVM vs. V
RF FREQUENCY (MHz)
2400
V
OUT
HIGH GAIN
LNA = LOW GAIN
(dBV
2450
LNA = MEDIUM GAIN
RMS
OUT
2500
)
2550
2600
11