MAX2830 데이터 시트보기 (PDF) - Maxim Integrated

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MAX2830

2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch

Maxim Integrated 

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

and Rx/Tx/Antenna Diversity Switch

AC ELECTRICAL CHARACTERISTICS—Tx Mode

(MAX2830 EV kit, VCC_ = 2.8V, VCCPA = VCCTXPA = 3.3V, TA = +25°C, fRF = 2.439GHz , fLO = 2.437GHz. fREF = 40MHz, SHDN =

RXTX = CS = ANTSEL = high, and SCLK = DIN = low, with power matching for the differential RF pins using the typical applications

circuit. 100mVRMS sine and cosine signal (or 100mVRMS 54Mbps IEEE 802.11g I/Q signals wherever OFDM is mentioned) applied to

baseband I/Q inputs of transmitter (differential DC-coupled). Registers set to recommend settings and corresponding test mode,

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)

PARAMETER

CONDITIONS

TRANSMIT SECTION: Tx BASEBAND I/Q INPUTS TO RF OUTPUTS

RF Output Frequency Range

MIN TYP MAX UNITS

2.4

2.5

GHz

Output Power

54Mbps 802.11g OFDM

signal

Output power adjusted to

meet 5.6%EVM, and

spectral mask

6Mbits, OFDM, I/Q signals

Output power adjusted to

meet spectral mask

Gain Control Range

B6:B1 = 000000 to 111000

Unwanted Sideband Suppression Without I/Q calibration, B6:B1 = 100001

Carrier Leakage at Center

Frequency of Channel

Without DC offset correction

1/3 x fLO

< 1GHz

Transmitter Spurious Signal

Emissions

RF Output Return Loss

Tx I/Q Input Load Impedance

(R || C)

> 1GHz

B6:B1 = 111000,

OFDM signal

2/3 x fLO

4/3 x fLO

5/3 x fLO

8/3 x fLO

2 x fLO

3 x fLO

Off-chip balun and single ended

Minimum differential resistance

Maximum differential capacitance

Baseband -3dB Corner

Frequency

D1:D0 = 01, Register 8

(A3:A0 = 1000)

Nominal mode

Baseband Filter Rejection

At 30MHz, in nominal mode

Minimum Power-Detector Output

Voltage

Short sequence transmitter power = +10dBm

17.1

dBm

20.3

26

dB

-42

dBc

-30

dBc

-67

-36

-47

-64

-42

dBm/

MHz

-65

-55

-27

-54

-15

dB

20

kΩ

0.7

pF

11

MHz

62

dB

0.35

V

Maximum Power-Detector Output Short sequence transmitter power = +20dBm

Voltage

RF Power-Detector Response Time

1.2

V

0.3

µs

6 _______________________________________________________________________________________

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