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MAX2232EEE

900MHz ISM-Band, 250mW Power Amplifiers with Analog or Digital Gain Control

Maxim Integrated 

900MHz ISM-Band, 250mW Power Amplifiers

with Analog or Digital Gain Control

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2232/MAX2233 Evaluation Kit, VCC = +3.6V, VCTRL = +2.2V, SHDN = VCC (MAX2232), D0 = D1 = VCC (MAX2233),

PRFIN = 0dBm, ƒRFIN = 915MHz, TA = +25°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Output Power, Low-Power Mode

Gain-Control Range (Note 3)

Power-Added Efficiency

POUT

∆GP

PAE

D0 = VCC, D1 = GND (MAX2233 only)

0.6V < VCTRL < 2.2V (MAX2232 only)

6.5

dBm

23.6

dB

44

%

Power-Added Efficiency at

+21dBm Output Power

PAE

CTRL adjusted to give PRFOUT = +21dBm

(MAX2232 only)

29

%

Supply Current, Medium-Power

Mode

ICC

D0 = GND, D1 = VCC (MAX2233 only)

78.5

mA

Supply Current, Low-Power

Mode

Input VSWR

Input VSWR Change, Shutdown

Mode (Notes 1, 4)

ICC

VSWR

∆VSWR

D0 = VCC, D1 = GND (MAX2233 only)

ZSOURCE = 50Ω (Note 1)

44.0

mA

1.5:1

1.4:1

Input VSWR Change, Standby

Mode (Notes 1, 4)

Off-Isolation

∆VSWR MAX2232 only

SHDN = D0 = D1 = GND

CTRL = GND (MAX2232 only)

1.2:1

52

dB

38

Maximum Nonharmonic

Spurious Output Due to Load

Mismatch

VCC = +2.7V to +5.5V,

6:1 VSWR at any phase angle,

PRFIN = +5dBm

-60

dBc

Maximum Output Load VSWR

Without Damage (Note1)

Any load phase angle, PRFIN = +5dBm,

TA = TMIN to TMAX

6:1

Harmonic Suppression

(Note 5)

29

dBc

Autoramping Rise Time

Autoramping Fall Time

Output Power Rise Time

CRAMP = 0.22µF (Notes 1, 6) (MAX2232 only)

0.9

ms

CRAMP = 0.22µF (Notes 1, 7) (MAX2232 only)

3.2

ms

RAMP+ = RAMP- = unconnected (Note 6)

0.4

µs

Thermal Shutdown Temperature TTH PRFIN = 0dBm, VCC = +3.6V

145

°C

Thermal Shutdown Timeout

Period

tTH

CTSET = 0.22µF (Note 8)

900

ms

Note 1: Guaranteed by design.

Note 2: Operation outside this range is possible, but not characterized.

Note 3: Gain is monotonic with VCTRL.

Note 4: Input VSWR relative to input impedance in operating mode.

Note 5: Harmonics measured on evaluation kit, which provides some harmonic attenuation in addition to the rejection provided by

the IC. The combined suppression is specified.

Note 6: Time measured from SHDN (MAX2232) low-to-high transition to when output power is within 1dB of final value. Includes

effects of 1% tolerance capacitor.

Note 7: Time measured from SHDN (MAX2232) high-to-low transition to when output power is -20dB of final value. Includes effects

of 1% tolerance capacitors.

Note 8: Time from die temperature dropping below Thermal Shutdown Temperature, TTH, to when the device turns itself back on.

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