MAX2820ETM-T Maxim Integrated Products, MAX2820ETM-T Datasheet - Page 8

• Manufacturer Part Number: MAX2820ETM-T
• Description: RF Transceiver 2.4GHz 802.11b Zero-If Transceiver
• Manufacturer: Maxim Integrated Products

Specifications of MAX2820ETM-T

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

2.4GHz 802.11b Zero-IF Transceivers
(MAX2820/MAX2821 EV kit, V
band inputs = 400mV
input biased at +1.2V, registers set to default power-up settings, T
8
100
-10
-20
-30
-40
-50
-60
-70
-80
-90
_______________________________________________________________________________________
90
80
70
60
50
40
30
20
10
40
35
30
25
20
15
10
10
0
5
0
0
2400
-40
1
SUPPLY CURRENT vs. TEMPERATURE
RECEIVE, V
RX_1K = V
(BOTH VERSIONS)
TRANSMIT
RECEIVER FILTER RESPONSE
2420
-15
RECEIVER VOLTAGE GAIN
V
V
vs. RF FREQUENCY
RF_GAIN
RF_GAIN
RF_GAIN
IL
RF FREQUENCY (MHz)
,
(1kHz TO 1MHz)
TEMPERATURE (°C)
RX_1K = V
RX_1K = V
("A" VERSION)
10
FREQUENCY (kHz)
2440
10
= V
= V
= V
P-P
RECEIVE, V
IH
IH
IL
f
IH
IH
BB
, V
, V
, I
2460
,
35
RX_AGC
RX_AGC
= 1MHz
CP
100
RF_GAIN
CC
= +2mA, BW
STANDBY
= 2.0V
= 2.0V
2480
60
= +2.7V, f
= V
IL
1000
2500
85
PLL
BB
100
-10
-20
-30
-40
-50
-60
-70
-80
-90
= 1MHz, f
10
90
80
70
60
50
40
30
20
10
50
45
40
35
30
25
20
15
10
= 45kHz, differential RF input/output matched to 50Ω through a balun, baseband
0
0
5
0
2.7
SUPPLY CURRENT vs. SUPPLY VOLTAGE
0
1
RECEIVE, V
f
f
BB
LO
RECEIVER NOISE FIGURE vs. GAIN
= 1MHz
= 2450MHz
RECEIVER FILTER RESPONSE
TRANSMIT
20
LO
(1MHz TO 100MHz)
RF_GAIN
V
3.0
FREQUENCY (MHz)
= 2450MHz, receive baseband outputs = 500mV
RF_GAIN
RX GAIN (dB)
40
= V
V
A
RECEIVE, V
CC
10
STANDBY
= V
= +25°C, unless otherwise noted.)
IH
(V)
IL
60
Typical Operating Characteristics
V
3.3
RF_GAIN
"A" VERSION
RF_GAIN
80
= V
= V
IH
IL
100
100
3.6
-100
-120
120
100
-10
-20
-30
-40
-50
-60
-70
-80
-90
80
60
40
20
0
-65
0
0
MAX2820/MAX2821 ONLY
V
V
f
f
BB
LO
LOW
LOW
OUT
RECEIVER DETECTOR HYSTERESIS
RF_GAIN
0.8
RECEIVER LEAKAGE SPECTRUM
= 1MHz
= 2450MHz
vs. GAIN-CONTROL VOLTAGE
-60
= 500mV
RECEIVER VOLTAGE GAIN
1.6 2.4 3.2 4.0
= V
0.5
vs. INPUT POWER
IL
-55
V
FREQUENCY (GHz)
P-P
RF_GAIN
V
P
RX_AGC
IN
-50
1.0
(dBm)
P-P
V
("A" VERSION)
= V
RF_GAIN
(V)
IH
, transmit base-
4.8 5.6
HIGH-GAIN MODE
LOW-GAIN MODE
f
V
-45
LO
RF_GAIN
V
("A" VERSION)
= V
RF_GAIN
= 2400MHz
1.5
IH
6.4
,
-40
= V
= V
HIGH
HIGH
7.2
IH
IL
,
-35
2.0
8.0