Datasheet

POWER DETECTOR OVER FREQUENCY
P
OUT
(dBm)
POWER DETECTOR (V)
MAX2830 toc40
0 5 10 15 20 25
0
0.5
1.0
1.5
2.0
2.5
f
RF
= 2.4GHz
f
RF
= 2.5GHz
POWER DETECTOR OVER SUPPLY VOLTAGE
P
OUT
(dBm)
POWER DETECTOR (V)
MAX2830 toc41
0 5 10 15 20 25
0
0.5
1.0
1.5
2.0
V
CCPA
= 2.7V, 3.0V
V
CCPA
= 3.3V, 4.2V
POWER DETECTOR OVER TEMPERATURE
P
OUT
(dBm)
POWER DETECTOR (V)
MAX2830 toc42
0 5 10 15 20 25
0
0.5
1.0
1.5
2.0
2.5
T
A
= +85°C
T
A
= +25°C,
-40°C
POWER-DETECTOR OUTPUT
100ns/div
MAX2830 toc43
300mV
-300mV
0V
1V
20dB GAIN STEP
PA ENVELOPE
POWER DETECTOR
2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA,
and Rx/Tx/Antenna Diversity Switch
TRANSMIT EMISSION MASK
MAX2830 toc38
FREQUENCY/MHz
10dB/div
246724472407 24272387 2487
P
OUT
= +17.1dBm
EVM = 5.6%
802.11g P
OUT
vs. GAIN SETTING
(UPPER GAIN CONTROL RANGE)
GAIN SETTINGS
P
OUT
(dBm)
MAX2830 toc39
40 44 48 52 56 60 64
14
16
18
20
22
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.)
Tx GAIN VARIATION vs. FREQUENCY
(B6:B1 = 101001)
FREQUENCY (GHz)
2dB/div
MAX2830 toc36
2.4 2.42 2.44 2.46 2.48 2.5
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
PA OUTPUT ENVELOPE RESPONSE
1
µ
s/div
MAX2830 toc44
-20dBm
0
20dBm
-50mV
50mV
PA ENVELOPE
TX I/Q INPUT
Tx OUTPUT POWER vs. FREQUENCY
FREQUENCY (GHz)
P
OUT
(dBm)
MAX2830 toc37
2.40 2.42 2.44 2.46 2.48 2.50
15.0
15.5
16.0
16.5
17.0
17.5
18.0
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
GAIN ADJUSTED TO ACHIEVE 5.6% EVM
Maxim Integrated
15
MAX2830