Datasheet

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MAX2090
50MHz to 1000MHz Analog VGA and Power
Detector with Optional AGC Loop
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit with analog attenuator set to minimum attenuation, V
CC
= 4.75V to 5.8V, f
RF
= 350MHz, -40NC < T
C
<
+95NC, and RF ports are connected to 50I sources, unless otherwise noted. Typical values are at T
C
= +25NC, V
CC
= 5.0V,
P
RF_IN
= -25dBm, V
PLVLSET
= 2.5V, CTRL1 = 0, CTRL2 = 1. Min/Max specifications apply over supply, process, and temperature,
unless otherwise noted.) (Note 7)
Note 5: Guaranteed by design and characterization.
Note 6: Recommended functional range. Not production tested. Operation outside this range is possible, but with degraded
performance of some parameters.
Note 7: All limits include external component losses. Output measurements were taken at the RF_OUT port.
Note 8: Production tested and guaranteed at T
C
= +95NC for worst-case supply voltage. Performance at T
C
= +25NC and
T
C
= -40NC are guaranteed by design and characterization for worst-case supply voltage.
Note 9: It is advisable not to continuously operate the RF_IN input power above 11dBm, RF_OUT power above 19dBm, and
DET_IN input AC voltage swing above QV
CC
/2.
Note 10: Output power variation after system calibration of (CW) output power vs. V
PLVLSET
at T
C
= +25NC.
Note 11: Output power variation after system calibration using temperature profile of (CW) output power vs. V
PLVLSET
with
-40NC P T
C
P 95NC.
Note 12: Settling time to 63% of final output power due to RF_IN 6dB power step.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
AGC Loop-Settling Time
(Note 12)
C8 = 47nF 10
msC8 = 100nF 22
C8 = 470nF 100
DET_IN Input Impedance 500
I
Maximum GCTRL Capacitance
to GND
(Note 5) 20 pF
ALARM CIRCUIT (CTRL1 = CTRL2 = 1)
ALM Threshold ALM_THRES open (see Table 2) -30 dBm