MAX2242 datasheet(3/9 Pages) MAXIM

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2.4GHz to 2.5GHz

Linear Power Amplifier

_______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS

(MAX2242 Evaluation Kit, VCC = +3.3V, V SHDN = VCC, 50

Ω source and load impedance, fIN = 2.45GHz, TA = +25°C, unless other-

wise noted.) (Note 6)

Note 1: Specifications over TA = -40°C to +85°C are guaranteed by design. Production tests are performed at TA = +25°C.

Note 2: Idle current is controlled by external DAC for best efficiency over the entire output power range.

Note 3: Parameter measured with RF modulation based on IEEE 802.11b standard.

Note 4: Power gain is guaranteed over this frequency range. Operation outside this range is possible, but is not guaranteed.

Note 5: Output two-tone third-order intercept point (OIP3) is production tested at TA = +25°C. The OIP3 is tested with two signals at

f1 = 2.450GHz and f2 = 2.451GHz with fixed PIN.

Note 6: Min/max limits are guaranteed by design and characterization.

Note 7: The total turn-on and turn-off times required for PA output power to settle to within 0.5dB of the final value.

Note 8: Excludes PC board loss of approximately 0.15dB.

Note 9: See Typical Operating Characteristics for statistical variation.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Frequency Range (Notes 3, 4)

2.4

2.5

GHz

TA = +25°C

26.5

28.5

Power Gain (Notes 1, 3)

TA = -40°C to +85°C

25.5

Gain Variation Over Temperature

(Note 3)

TA = -40°C to +85°C

±1.2

Gain Variation Over VCC (

±10%)

(Note 3)

VCC = +3.0V to +3.6V

±0.3

Output Power (Notes 3, 5, 8)

ACPR,

1st-side lobe < -33dBc,

2nd-side lobe < -55dBc

21.5

22.5

dBm

Saturated Output Power

PIN = +5dBm

26.5

dBm

Harmonic Output (2f, 3f, 4f)

-40

dBc

Input VSWR

Over full PIN range

1.5:1

Output VSWR

Over full POUT range

2.5:1

Power Ramp Turn-On Time

(Note 7)

SHDN from low to high

1.5

µs

Power Ramp Turn-Off Time

(Note 7)

SHDN from high to low

1.5

µs

RF Output Detector Response

TIme

2.5

µs

Po = +22dBm (Note 9)

1.8

Po = +13dBm (Note 9)

0.9

RF Output Detector Voltage

Po = +5dBm (Note 9)

0.55

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