2MHz to 1.6GHz 45dB RF-Detecting

Controllers and RF Detector

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9

SHDN POWER-ON DELAY

RESPONSE TIME

MAX9930 toc46

2

µs/div

OUT

1V/div

0V

0V

SHDN

500mV/div

SHDN RESPONSE TIME

MAX9930 toc47

2

µs/div

OUT

500mV/div

0V

0V

SHDN

1V/div

CLPF = 150pF

MAIN OUTPUT NOISE-SPECTRAL DENSITY

FREQUENCY (Hz)

1k

10k

100k

1M

1000

10,000

100

100

10M

MAX9933

CLPF = 220pF

MAXIMUM OUT VOLTAGE

5.0

4.5

4.0

3.5

3.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

2.0

2.5

5.5

0mA

5mA

10mA

LARGE-SIGNAL

PULSE RESPONSE

MAX9930 toc50

10

µs/div

OUT

500mV/div

RFIN

250mV/div

≤ 900mV

-2dBm

-42dBm

Typical Operating Characteristics (continued)

otherwise noted.)

Pin Description

PIN

MAX9930/

MAX9931/

MAX9932

MAX9933

NAME

FUNCTION

1

1

RFIN

RF Input

22

SHDN

3

—

SET

Set-Point Input

4

4

CLPF

Lowpass Filter Connection. Connect external capacitor between CLPF and GND to set

control-loop bandwidth.

5

3, 5

GND

Ground

6

6

N.C.

No Connection. Not internally connected.

7

7

OUT

PA Gain-Control Output

88

Supply Voltage. Bypass to GND with a 0.1µF capacitor.

SMALL-SIGNAL

PULSE RESPONSE

MAX9930 toc51

1

µs/div

OUT

75mV/div

RFIN

25mV/div

≤ 0V

-24dBm

-18dBm