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

RF Power Measurement Unit (PMU) (continued)

PARAMETER

SYMBOL

CONDITIONS (Notes 23, 24)

MIN

TYP

MAX

UNITS

RFIN_BLN Log Intercept

Linear regression between -4

and -34dBm

0

dBm

RFFB_BLN Log Intercept

Linear regression between -12

and -42dBm

0

dBm

RFIN_BLN

Log Intercept Variation

Linear regression between -4 and

-34dBm, 100 readings of single IC

±0.12

dB

RFFB_BLN

Log Intercept Variation

Linear regression between -12 and

-42dBm, 100 readings of single IC

±0.12

dB

RFIN_BLN Error as Referred

to Best-Fit Line (Notes 25, 26)

FITERROR

-4 to -34dBm

-34 to -44dBm

-0.30

-2

+0.30

+2

dB

dB

RFFB_BLN Error as Referred

to Best-Fit Line (Notes 25, 26)

FITERROR

-12 to -42dBm

-42 to -52dBm

-0.30

-2

+0.30

+2

dB

dB

RFIN_BLN, RFFB_BLN

Deviation from 2-Tone CW

Response (Note 27)

6.5 dB PAR (WCDMA 1 carrier)

10 dB PAR (WCDMA 1 carrier)

10 dB PAR (LTE 20 carrier)

±0.1

±0.1

±0.1

dB

dB

dB

RFIN_BLN Deviation vs.

Temperature (Notes 25, 27)

DEV

Deviation from output at 25°C, −40°C

-4 to -34dBm, at 1800MHz

-34 to -44dBm, at 1800MHz

-4 to -34dBm, at 2500MHz

-34 to -44dBm, at 2500MHz

-0.55

-2

-0.7

-2

±0.1

±0.5

±0.1

±0.5

+0.55

+2

+0.7

+2

dB

dB

dB

dB

RFFB_BLN Deviation vs.

Temperature (Notes 25, 27)

DEV

Deviation from output at +25°C,

-12 to -42dBm, at 1800MHz

-42 to -52dBm, at 1800MHz

-12 to -42dBm, at 2500MHz

-42 to -52dBm, at 2500MHz

-0.4

-2

-0.5

-2

±0.1

±0.5

±0.1

±0.5

+0.4

+2

+0.5

+2

dB

dB

dB

dB

RFIN_BLN Deviation vs.

Supply Voltage

_DEV

_DEV

1.7V < AVDD18 < 1.9V

3.1V < AVDD33 < 3.5V

+0.7

-0.5

dB/V

dB/V

RFFB_BLN Deviation vs.

Supply Voltage

_DEV

_DEV

1.7V < AVDD18 < 1.9V

3.1V < AVDD33 < 3.5V

+0.7

-0.5

dB/V

dB/V

SC1894

225MHz to 3800MHz RF Power

Amplifier Linearizer (RFPAL)

www.maximintegrated.com

Maxim Integrated │ 9

RF Power Measurement Electrical Characteristics (continued)