Datasheet

Typical Operating Characteristics (continued)
(MAX2830 EV kit, V
CC_
= 2.8V, V
CCPA
= V
CCTXPA
= 3.3V, T
A
= +25°C, f
LO
= 2.437GHz, f
REF
= 40MHz, SHDN = CS = high, RXHP =
SCLK = DIN = low.)
LNA INPUT RETURN LOSS
vs. RF FREQUENCY (ANT 2)
RF FREQUENCY (MHz)
INPUT RETURN LOSS (dB)
MAX2830 toc09a
2300 2400 25002350 2450 2550 2600
-25
-20
-15
-10
-5
MID GAIN
LOW GAIN
HIGH GAIN
Rx RSSI OUTPUT vs. INPUT POWER
P
IN
(dBm)
RSSI OUTPUT (V)
MAX2830 toc10
-120 -100 -80 -60 -40 -20 0 20
0
0.5
1.0
1.5
2.0
2.5
3.0
LNA = HIGH GAIN
LNA = MEDIUM GAIN
LNA = LOW GAIN
Rx RSSI STEP RESPONSE
(+32dB LNA GAIN STEP)
3V
0
0.45
1.45V
200ns/div
MAX2830 toc11
Rx RSSI STEP RESPONSE
(-32dB LNA GAIN STEP)
3V
0V
0V
1.5V
200ns/div
MAX2830 toc12
Rx I/Q DC OFFSET SETTLING RESPONSE
(+8dB BB VGA GAIN STEP)
2.0V
5mV
40ns/div
10mV
0V
0V
MAX2830 toc13
Rx I/Q DC OFFSET SETTLING RESPONSE
(-8dB BB VGA GAIN STEP)
MAX2830 toc14
2.5V
5mV
40ns/div
10mV
0V
0mV
Rx I/Q DC OFFSET SETTLING RESPONSE
(-16dB BB VGA GAIN STEP)
3V
MAX2830 toc15
5mV
400ns/div
10mV
0V
0V
Rx I/Q DC OFFSET SETTLING RESPONSE
(-32dB BB VGA GAIN STEP)
3V
MAX2830 toc16
5mV
400ns/div
10mV
0V
0V
I/Q OUTPUT DC ERROR DROOP
(RxHP = 1→0; 100Hz MODE)
3V
MAX2830 toc17
-5mV
20ms/div
0V
0V
-10mV
12
Maxim Integrated
2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA,
and Rx/Tx/Antenna Diversity Switch
MAX2830