Datasheet

2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA,
and Rx/Tx/Antenna Diversity Switch
DC ELECTRICAL CHARACTERISTICS (continued)
(MAX2830 EV kit, V
CC_
= 2.7V to 3.6V, V
CCPA
= V
CCTXPA
= 2.7V to 4.2V, T
A
= -40°C to +85°C, Rx set to the maximum gain. CS =
high, RXHP = SCLK = DIN = ANTSEL = low, RSSI and clock output buffer are off, no signal at RF inputs, all RF inputs and outputs
terminated into 50Ω, receiver baseband outputs are open. 100mV
RMS
differential I and Q signals (54Mbps IEEE 802.11g OFDM)
applied to I/Q baseband inputs of transmitter in transmit mode, f
REF
= 40MHz, and registers set to recommended settings and corre-
sponding test mode, unless otherwise noted. Typical values are at V
CC
= 2.8V, V
CCPA
= 3.3V, and T
A
= +25°C, LO frequency =
2.437GHz, unless otherwise noted. 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)
PARAMETERS CONDITIONS MIN TYP MAX UNITS
LOGIC INPUTS: SHDN, RXTX, SCLK, DIN, CS, B7:B1, RXHP, ANTSEL
Digital Input-Voltage High, V
IH
V
CC
-
0.4
V
Digital Input-Voltage Low, V
IL
0.4 V
Digital Input-Current High, I
IH
-1 +1 µA
Digital Input-Current Low, I
IL
-1 +1 µA
LOGIC OUTPUTS: LD, CLOCKOUT
Digital Output-Voltage High, V
OH
Sourcing 100µA
V
CC
-
0.4
V
Digital Output-Voltage Low, V
OL
Sinking 100µA 0.4 V
AC ELECTRICAL CHARACTERISTICS—Rx Mode
(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
RECEIVER SECTION: LNA RF INPUT-TO-BASEBAND I/Q OUTPUTS
RF Input Frequency Range 2.4 2.5 GHz
High RF gain 13
Mid RF gain 16
RF Input Return Loss (ANT1)
Low RF gain 13
dB
High RF gain 21
Mid RF gain 14RF Input Return Loss (ANT2)
Low RF gain 12
dB
T
A
= +25°C 86 97
Maximum gain, B7:B1 =
1111111
T
A
= -40°C to +85°C 83
Total Voltage Gain (ANT1)
Minimum gain, B7:B1 =
0000000
T
A
= +25°C 2 8
dB
Maximum gain, B7:B1 =
1111111
T
A
= +25°C 96
Total Voltage Gain (ANT2)
Minimum gain, B7:B1 =
0000000
T
A
= +25°C 2
dB
Maxim Integrated
3
MAX2830