Operation at +25°C, AVDD18 = 1.8V, AVDD33 = 3.3V, and DVDD18 = 1.8V, unless otherwise specified. Min/Max values are at -40°C

Note 17: Test conditions: 2-tone CW (3dB PAR), 5MHz bandwidth and centered at 2140 MHz unless otherwise specified.

Note 18: Power measurement updated about every 340ms. The integration time (measurement window) fixed to 40ms.

Note 19: For operation above 2500MHz, please contact factory.

Note 20: RMS power (MAX) + peak to average ratio (PAR) must not exceed the peak power limits specified in the respective IC

data sheets. As long as this condition is met, there is no limitation on the maximum PAR.

Note 21: When RFIN_BLN and RFFB_BLN are measured sequentially or independently.

Note 22: When RFIN_BLM and RFFB_BLN are measured simultaneously.

Note 23: Test conditions: 2-tone CW (3dB PAR), 5MHz bandwidth and centered at 2140MHz unless otherwise specified.

Note 24: Power measurement updated every 340ms. The integration time (measurement window) fixed to 40ms.

Note 25: When RFIN_BLN and RFFB_BLN are measured sequentially or independently.

Note 27: Guaranteed by characterization.

RF Power Measurement Unit (PMU) (continued)

PARAMETER

SYMBOL

CONDITIONS (Notes 23, 24)

MIN

TYP

MAX

UNITS

(RFIN_BLN) - (RFFB_BLN)

Log Slope

0

LSB/dB

(RFIN_BLN) - (RFFB_BLN)

Log Slope Variation

RFFBslope

±1.2

LSB/dB

(RFIN_BLN) - (RFFB_BLN)

Error as Referred to Best-Fit

Line (Note 26)

RFIN_BLN range

(RFFN_BLN = RFIN_BLN – 7dB)

-4 to -24dBm

-24 to -34dBm

-0.30

-2

+0.30

+2

dB

dB

(RFIN_BLN) - (RFFB_BLN)

Deviation from 2-Tone CW

Response (Note 27)

6.5dB PAR (WCDMA 1 carrier)

10dB PAR (WCDMA 1 carrier)

9.1dB PAR (WCDMA 12 carriers)

±0.1

±0.1

±0.1

dB

dB

dB

(RFIN_BLN) - (RFFB_BLN)

Deviation vs. Temperature

(Note 27)

Deviation from output at 25°C, −40°C

-4 to -24dBm, at 2200MHz

-24 to -34dBm, at 2200MHz

-0.55

-2

±0.1

±0.5

+0.55

+2

dB

dB

SC1894

225MHz to 3800MHz RF Power

Amplifier Linearizer (RFPAL)

www.maximintegrated.com

Maxim Integrated │ 10

RF Power Measurement Electrical Characteristics (continued)