MAX2232EEE datasheet(3/8 Pages) MAXIM

3 / 8 page

900MHz ISM-Band, 250mW Power Amplifiers

with Analog or Digital Gain Control

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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.)

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.

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

(Note 5)

Any load phase angle, PRFIN = +5dBm,

TA = TMIN to TMAX

VCC = +2.7V to +5.5V,

6:1 VSWR at any phase angle,

PRFIN = +5dBm

CTRL = GND (MAX2232 only)

SHDN = D0 = D1 = GND

MAX2232 only

0.6V < VCTRL < 2.2V (MAX2232 only)

ZSOURCE = 50Ω (Note 1)

D0 = VCC, D1 = GND (MAX2233 only)

D0 = GND, D1 = VCC (MAX2233 only)

CTRL adjusted to give PRFOUT = +21dBm

(MAX2232 only)

CONDITIONS

0.9

Autoramping Rise Time

dBc

Harmonic Suppression

6:1

Maximum Output Load VSWR

Without Damage (Note1)

dBc

-60

Maximum Nonharmonic

Spurious Output Due to Load

Mismatch

Off-Isolation

1.2:1

∆VSWR

Input VSWR Change, Standby

Mode (Notes 1, 4)

1.4:1

∆VSWR

Input VSWR Change, Shutdown

Mode (Notes 1, 4)

1.5:1

VSWR

Input VSWR

44.0

ICC

Supply Current, Low-Power

Mode

78.5

ICC

Supply Current, Medium-Power

Mode

PAE

Power-Added Efficiency at

+21dBm Output Power

PAE

Power-Added Efficiency

23.6

∆GP

Gain-Control Range (Note 3)

dBm

6.5

POUT

Output Power, Low-Power Mode

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

PRFIN = 0dBm, VCC = +3.6V

RAMP+ = RAMP- = unconnected (Note 6)

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

CTSET = 0.22µF (Note 8)

°C

145

TTH

Thermal Shutdown Temperature

µs

0.4

3.2

Autoramping Fall Time

Output Power Rise Time

900

tTH

Thermal Shutdown Timeout

Period

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