MAX2832 datasheet(3/33 Pages) MAXIM

3 / 33 page

2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA,

and Rx/Tx/Antenna Diversity Switch

_______________________________________________________________________________________

DC ELECTRICAL CHARACTERISTICS (continued)

(MAX2830 EV kit, VCC_ = 2.7V to 3.6V, VCCPA = VCCTXPA = 2.7V to 4.2V, TA = -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 50

Ω, receiver baseband outputs are open. 100mVRMS differential I and Q signals (54Mbps IEEE 802.11g OFDM)

applied to I/Q baseband inputs of transmitter in transmit mode, fREF = 40MHz, and registers set to recommended settings and corre-

sponding test mode, unless otherwise noted. Typical values are at VCC = 2.8V, VCCPA = 3.3V, and TA = +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, VIH

VCC -

0.4

Digital Input-Voltage Low, VIL

0.4

Digital Input-Current High, IIH

-1

µA

Digital Input-Current Low, IIL

-1

µA

LOGIC OUTPUTS: LD, CLOCKOUT

Digital Output-Voltage High, VOH

Sourcing 100µA

VCC -

0.4

Digital Output-Voltage Low, VOL

Sinking 100µA

0.4

AC ELECTRICAL CHARACTERISTICS—Rx Mode

(MAX2830 EV kit, VCC_ = 2.8V, VCCPA = VCCTXPA = 3.3V, TA =+25°C, fRF = 2.439GHz, fLO = 2.437GHz; receiver baseband I/Q out-

puts at 112 mVRMS (-19dBV), fREF = 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

Mid RF gain

RF Input Return Loss (ANT1)

Low RF gain

High RF gain

Mid RF gain

RF Input Return Loss (ANT2)

Low RF gain

TA = +25°C

Maximum gain, B7:B1 =

1111111

TA = -40°C to +85°C

Total Voltage Gain (ANT1)

Minimum gain, B7:B1 =

0000000

TA = +25°C

Maximum gain, B7:B1 =

1111111

TA = +25°C

Total Voltage Gain (ANT2)

Minimum gain, B7:B1 =

0000000

TA = +25°C

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