Datasheet

2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA,
and Rx/Tx/Antenna Diversity Switch
AC ELECTRICAL CHARACTERISTICS—Rx Mode (continued)
(MAX2830 EV kit, V
CC_
= 2.8V, V
CCPA
= V
CCTXPA
= 3.3V, T
A
=+25°C, f
RF
= 2.439GHz, f
LO
= 2.437GHz; receiver baseband I/Q out-
puts at 112 mV
RMS
(-19dBV), f
REF
= 40MHz, SHDN = CS = high, RXTX = SCLK = DIN = low, with power matching for the differential
RF pins using the typical applications and registers set to default settings and corresponding test mode, unless otherwise noted.
Unmodulated single-tone RF input signal is used with specifications that normally apply over the entire operating conditions, unless
otherwise indicated. RF inputs/outputs specifications are referenced to device pins and do not include 1dB loss from EV kit PCB,
balun, and SMA connectors.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS
I/Q Output DC Droop
After switching RXHP to 0, D13:D12, Register 7
(A3:A0 = 0111)
±1 V/s
I/Q Static DC Offset RXHP = 1, B7:B1 = 1101110, 1 σ variation ±1 mV
Spurious Signal Emissions from
LNA input
RF = 1GHz to 26.5GHz -51 dBm
ANT1 to receiver (in ANT2 mode) 20
ANT to Receiver Isolation
ANT2 to receiver (in ANT1 mode) 47
dB
RECEIVER BASEBAND FILTERS
Gain Ripple in Passband 10kHz to 8.5MHz at baseband ±1.3 dB
P-P
G r oup - D el ay Ri p p l e i n P assb and 10kHz to 8.5MHz at baseband ±45 ns
P-P
At 8.5MHz 3.2
At 15MHz 27
At 20MHz 50
Baseband Filter Rejection
(Nominal Mode)
At > 40MHz 80
dB
RSSI
RSSI Minimum Output Voltage R
LOAD
≥ 10kΩ || 5pF 0.4 V
RSSI Maximum Output Voltage R
LOAD
≥ 10kΩ || 5pF 2.4 V
RSSI Slope 30 mV/dB
+32dB signal step 200
RSSI Output Settling Time
To within 3dB of steady
state
-32dB signal step 600
ns
Maxim Integrated
5
MAX2830