ACPM-7813 Ver la hoja de datos (PDF) - HP => Agilent Technologies

Número de pieza

componentes Descripción

Fabricante

ACPM-7813

CDMA/AMPS Power Amplifier Module

HP => Agilent Technologies 

Combinations of these channels

will increase the peak to average

power ratio for higher data rates.

The complementary cumulative

distribution function (CCDF)

measurement characterizes the

peak to average power statistics

of CDMA2000 reverse link. For

reference, the system specifica-

tions of peak to average power

ratio of IS-95 and CDMA2000 IX

RTT are 3.9 dB and 5.4 dB at 1%

CCDF respectively.

Higher peak to average power

ratio requires a higher margin,

both in higher power gain and in

improved thermal stability for PA

linearity to meet the minimum

system specifications.

The test results below for the

ACPM-7813 show the compliance

to the system linearity specifica-

tions with 4 channel configura-

tions, representing a broad

cross-section of CDMA2000 1X

RTT environments.

Test result of ACPM-7813 using CDMA2000 1X RTT signal

Test condition - PA Evaluation board with Vdd1=Vdd2=Vbias = 3.4V, Vcntl = 2.5V, Frequency = 836 MHz. Test result with each channel configuration.

Channel

IVdd(mA)

-885 kHz

+885 kHz

Pin(dBm) ACPR(dBc) ACPR(dBc)

-1.98 MHz +1.98 MHz

ACPR(dBc) ACPR(dBc)

Pout(dBm)

Basic

481.0

0.20

-56.5

-56

-68.1

-68.1

28

Voice+Data 470.0

0.52

-46.8

-47.2

-62.2

-62.1

28

Voice+Cntl 481.0

0.68

-44.9

-45.0

-61.8

-61.8

28

Cntl only

327.0

-2.40

-53.2

-52.9

-66.9

-67.5

25.5

EIA/TIA-98-D indicates a 2.5 dB allowed back off in power for control channel only configuration.

Peak to average power ration (Pout = 16 dBm)

CCDF(%)

Basic

Voice + Data Voice + CNTL

10

1.85

3.07

3.10

1

3.25

4.28

4.66

0.1

4.06

5.06

5.55

0.01

4.49

5.55

5.97

0.001

4.68

5.87

6.20

0.0001

4.76

5.92

6.39

CNTL only

3.76

5.29

6.17

6.58

6.76

6.82

10

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