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MAX2203

RMS Power Detector

_______________________________________________________________________________________ 3

OUTPUT VOLTAGE vs. INPUT POWER

MAX2203 toc01

INPUT POWER (dBm)

OUTPUT VOLTAGE (V)

0-5-10-15-20-25

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0.2

-30 5

2000MHz

800MHz

PCS WCDMA 1+1 vs. 1+5 RMS ERROR

(± DEVIATION FROM MIDPOINT)

MAX2203 toc02

(dBm)

RMS ERROR (dB)

0.05

0.10

0.15

0.20

0.25

-25

-23

-21

-19

-17

-15

-13

-11 -7 -3

-9 -5

-1

CELL WCDMA 1+1 vs. 1+5 RMS ERROR

(± DEVIATION FROM MIDPOINT)

MAX2203 toc03

(dBm)

RMS ERROR (dB)

0.02

0.01

0.03

0.04

0.05

0.06

-25

-23

-21

-19

-17

-15

-13

-11 -7 -3

-9 -5

-1

-5-10-15-20-25 0

-0.2

-0.1

0.1

0.2

0.3

-0.3

INPUT POWER (dBm)

LOG CONFORMANCE (dB)

LOG CONFORMANCE WITH 1dB STEP

CELLULAR BAND

MEAN + 3 x STDEV

MEAN

MAX2203 toc04

MEAN - 3 x STDEV

-5-10-15-20-25 0

-0.2

-0.1

0.1

0.2

0.3

-0.3

INPUT POWER (dBm)

LOG CONFORMANCE (dB)

LOG CONFORMANCE WITH

1dB STEP PCS BAND

MEAN + 3 x STDEV

MEAN

MAX2203 toc05

MEAN - 3 x STDEV

LOG CONFORMANCE WITH

10dB STEP CELLULAR BAND

INPUT POWER (dBm)

LOG CONFORMANCE (dB)

-5-10

-0.6

-0.2

0.2

0.6

1.0

-1.0

-15 0

MAX2203 toc06

MEAN + 3 x STDEV

MEAN

MEAN - 3 x STDEV

LOG CONFORMANCE WITH

10dB STEP PCS BAND

INPUT POWER (dBm)

LOG CONFORMANCE (dB)

-5-10

-0.6

-0.2

0.2

0.6

1.0

-1.0

-15 0

MAX2203 toc07

MEAN + 3 x STDEV

MEAN

MEAN - 3 x STDEV

55-UNIT CELLULAR ROOM-COLD

TEMPERATURE ERROR

MAX2203 toc08

INPUT POWER (dBm)

TEMPERATURE ERROR (dB)

-0.2

0.2

0.4

0.6

0.8

-0.4

-25

-23

-21

-19

-17

-15

-13

-11 -7 -3

-9 -5

-1

Typical Operating Characteristics

= 2.7V, T

= +25°C, WCDMA uplink DPCCH + 1DPDCH, log conformance calculation is referenced to a straight line that is

calibrated at -20dBm and 0dBm, unless otherwise noted.)

1 2 3 4 5 6 7

RMS Power Detector 1

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