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MAX2832

2.4GHz to 2.5GHz 802.11g/b RF Transceivers with Integrated PA

Maxim Integrated 

2.4GHz to 2.5GHz 802.11g/b

RF Transceivers with Integrated PA

AC ELECTRICAL CHARACTERISTICS—Frequency Synthesis

(MAX2831 EV kit: VCC_ = 2.7V, VCCPA = VCCTXPA = 3.3V, TA = +25°C, fLO = 2.437GHz, fREF = 40MHz, SHDN = CS = high, SCLK =

DIN = low, PLL loop bandwidth = 150kHz, and TA = +25°C, unless otherwise noted.) (Note 1)

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

FREQUENCY SYNTHESIZER

RF Channel Center Frequency

2.4

2.5

GHz

Channel Center Frequency

Programming Minimum Step Size

20

Hz

Charge-Pump Comparison

Frequency

Reference Frequency Range

Reference Frequency Input

Levels

AC-coupled to XTAL pin

Reference Frequency Input

Impedance (R || C)

Resistance (XTAL)

Capacitance (XTAL)

Closed-Loop Phase Noise

fOFFSET = 1kHz

fOFFSET = 10kHz

fOFFSET = 100kHz

fOFFSET = 1MHz

fOFFSET = 10MHz

Closed-Loop Integrated Phase

Noise

RMS phase jitter; integrate from 10kHz to 10MHz offset

Charge-Pump Output Current

Reference Spurs

20MHz offset

VCO Frequency Error

Measured from Tx-Rx or Rx-Tx 3µs to 9µs

transition

> 9µs

VOLTAGE-CONTROLLED OSCILLATOR

Pushing

VCO Tuning Voltage Range

Referred to 2400MHz LO, VCC varies by 0.3V

LO Tuning Gain

VTUNE = 0.5V

VTUNE = 2.2V

20

20

800

5

4

-86

-94

-94

-110

-120

0.9

1

-55

50

1

MHz

44

MHz

mVP-P

kΩ

pF

dBc/Hz

Degrees

mA

dBc

kHz

210

kHz

0.5

2.2

V

103

MHz/V

86

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