TRF4002

PCS RF POWER AMPLIFIER

SLWS051 – JANUARY 1999

4

POST OFFICE BOX 655303

electrical characteristics over recommended operating free-air temperature range,

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Input frequency range (RFIN)

1850

1910

MHz

td(on)

Turn-on time,(see Note 3)

50

µs

td(off)

Turn-off time, (see Note 4)

50

µs

Gain

17

18

19

dB

Noise figure

10

dB

Reverse isolation

40

dB

Input VSWR (RFIN) (see Note 5)

2:1

Output VSWR (PAOUT/VD2) (see Note 5)

Small signal conditions

2:1

Nominal linear output power

27.5

dBm

Power-added efficiency

PO = 27.7 dBm

30%

Gain linearity

–10 dBm < PO < 27.7 dBm

"0.5

dB

Adjacent channel power rejection

>

±1.25-MHz offset

–44

dBc

jj

(see Note 6)

>

±2.25-MHz offset

–54

dBc

Harmonics

–30

dBc

Quiescent current

450

mA

† Typical values are at TA = 25°C

NOTES:

3. Turn-on time is that time between the instant the power amplifier bias voltage changes from 0 V and the instant when the device

output power is within

±1 dB of its rated output value.

4. Turn-off time is that time between the instant that the PA bias voltage begins to fall and the instant when the PA current consumption

is less than 1 mA.

5. VSWR = voltage standing wave ratio

6. Measured at 27.5-dBM total output power with CDMA input signal.

stability

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Stability

Output VSWR < 6:1, All phase angles

–70

dBc

† Typical values are at TA = 25°C