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图33e山也迢迢水也迢迢eeeMAX2233EEE中文资料-【xinwen】

发布时间:2021-10-12 10:55:57 阅读: 来源:螺杆泵厂家

19-1470; Rev 1; 6/00

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

General DescriptionFeatures

The MAX2232/MAX2233 low-voltage, silicon RF power

amplifiers (PAs) are designed for use in the 900MHzo800MHz to 1000MHz Frequency RangeISM band. They operate from a single +2.7V to +5.5Vo250mW (+24dBm) Output Power at 915MHz fromsupply, allowing them to be powered directly from a 3-+3.6V Supply

cell NiCd or a 1-cell Lithium-Ion battery. The devices

typically deliver 250mW (+24dBm) of output power ato+2.7V to +5.5V Single-Supply Operation915MHz from a single +3.6V supply, or 150mWo44% Power-Added Efficiency

(+22dBm) from a single +2.7V supply. At +24dBm out-

put power, power-added efficiency (PAE) is 44%. o24dB Power Gain

The MAX2232/MAX2233 provide 24dB of gain, which iso24dB Analog Gain-Control Range (MAX2232)adjustable over a continuous 24dB span via the analog

gain-control pin of the MAX2232 or in two 10dB stepsoThree Levels of Digitally Programmed Power Gain

via the 2-bit programmable gain-control DAC of thein 10dB Steps (MAX2233)

MAX2233. An external capacitor sets the RF outputoProgrammable RF Power Envelope Rampingpower envelope ramp time, reducing spurious emis-(MAX2232)

sions during power-up and power-down by providing a

gradual change in output power (MAX2232).oThermal Shutdown

The MAX2232/MAX2233 feature a low-power shutdownoProgrammable Thermal Shutdown Timeout Periodmode, which typically draws less than 1μA of supplyo0.2μA Low-Power Shutdown Modecurrent, saving power during “idle slots” in time-division

multiple-access (TDMA) systems. The ?VSWR of the RFoLow ?VWSR in Standby and Shutdown Modesinput in shutdown mode relative to normal operation is

1.2:1. The devices also feature a thermal shutdown

function, enabling the PA to protect itself from excessiveOrdering Informationtemperature conditions that could damage the IC. A

capacitor to ground limits thermal cycling by setting athermal shutdown timeout period. The MAX2232/MAX2233 are available in a space-sav-ing, thermally enhanced 16-pin power-QSOP (PQSOP)package.

ApplicationsPin Configuration

900MHz ISM Band Digital Cordless Phones

Wireless Data

MAX2232/MAX2233

ABSOLUTE MAXIMUM RATINGS

VCCto GND...........................................................-0.3V to +6.5VSHDN, CTRL, D0, D1 to GND ....................-0.3V to (VCC+0.3V)IRFIN....................................................................................10mARFIN Power (50?AC-coupled source)..........................+10dBmOutput Load VSWR.................................................................6:1

Continuous Power Dissipation (TA= +70°C)

16-Pin PQSOP (derate 80mW/°C above +70°C)................3WOperating Temperature Range...........................-40°C to +85°CStorage Temperature Range.............................-65°C to +150°CLead Temperature (soldering, 10s).................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.

DC ELECTRICAL CHARACTERISTICS

(VCC = +2.7V to +5.5V, VCTRL= +2.2V, VSHDN= VD0= VD1= +2V, TA= -40°C to +85°C. No input signal applied, unless otherwisenoted. Typical values are at VCC= +3.6V and TA= +25°C.)

AC ELECTRICAL CHARACTERISTICS

(MAX2232/MAX2233 Evaluation Kit, VCC= +3.6V, VCTRL= +2.2V, SHDN= VCC(MAX2232), D0 = D1 = VCC(MAX2233), PRFIN= 0dBm, ?RFIN= 915MHz, TA= +25°C, unless otherwise noted.)

33eeee MAX2233EEE+中文资料

900MHz ISM-Band, 250mW Power Amplifiers

with Analog or Digital Gain Control

AC ELECTRICAL CHARACTERISTICS (continued)

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