Lead Temperature (soldering, 10s) ................................+300°C
Soldering Temperature (reflow) ......................................+260°C
Note 1:
T
C
is the temperature on the exposed pad of the package. T
A
is the ambient temperature of the device and PCB.
Note 2:
Based on junction temperature T
J
= T
C
+ (θ
JC
x V
CC
x I
CC
). This formula can be used when the temperature of the exposed
pad is known while the device is soldered down to a PCB. See the
Applications Information
section for details. The junction
temperature must not exceed +150°C.
Note 3:
Junction temperature T
J
= T
A
+ (θ
JA
x V
CC
x I
CC
). This formula can be used when the ambient temperature of the PCB is
known. The junction temperature must not exceed +150°C.
Note 4:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to
www.maxim-ic.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
CAUTION!
ESD SENSITIVE DEVICE
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +4.75V to +5.25V, V
CTRL
= +1.0V to +4.0V, no RF signals applied, all input and output ports terminated with 50I, T
C
=
-40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +5.0V, V
CTRL
= +1.0V, T
C
= +25°C, unless otherwise noted.)
PARAMETER
SuPPLY
Supply Voltage
Supply Current
CONTROL INPuT
Control Voltage Range
Control Input Resistance
V
CTRL
R
CTRL
(Note 5)
1.0
50
4.0
V
kI
V
CC
I
CC
4.75
5.0
7.3
5.25
9.5
V
mA
SYMBOL
CONDITIONS
MIN
TYP
MAx
uNITS
RECOMMENDED AC OPERATING CONDITIONS
PARAMETER
RF Frequency Range
SYMBOL
f
RF
(Note 6)
CONDITIONS
MIN
250
TYP
MAx
4000
uNITS
MHz
2
250MHz to 4000MHz Dual,
Analog Voltage Variable Attenuator
AC ELECTRICAL CHARACTERISTICS
(MAX19790
Evaluation Kit,
line and connector losses included,
two attenuators in cascade,
V
CC
= 4.75V to 5.25V, RF ports are
driven from 50I sources, input P
RF
= -10dBm, f
RF
= 950MHz to 2150MHz, V
CTRL
= +1.0V, T
C
= -40°C to +85°C. Typical values are
for T
C
= +25°C, V
CC
= +5.0V, input P
RF
= -10dBm, f
RF
= 1500MHz, V
CTRL
= +1.0V, unless otherwise noted.)
PARAMETER
Insertion Loss
Loss Variation Over Temperature
Input P
1dB
Input Second-Order Intercept
Point
Input Third-Order Intercept Point
Second Harmonic
Third Harmonic
IP
1dB
IIP2
IIP3
2f
IN
3f
IN
One attenuator, V
CTRL
= +1.0V
to +4.0V, T
C
= +25NC
Attenuation-Control Range
A
R
Two attenuators,
V
CTRL
= +1.0V
to +4.0V,
T
C
= +25NC
950MHz to 1500MHz
950MHz to 2150MHz
36
33
f
RF1
+ f
RF2
term, f
RF1
- f
RF2
= 1MHz
(Note 7)
f
RF1
- f
RF2
= 1MHz (Note 7)
SYMBOL
IL
T
C
= +25NC
T
C
= -40NC to +85NC
CONDITIONS
950MHz to 1500MHz
950MHz to 2150MHz
MIN
TYP
4.4
4.4
0.6
23.1
69.6
36.3
72
77
22
44.7
44.7
20.0
30.4
0.13
500
25
21
190
10
-175
82
0.89
dB/V
dB/V
dB
ns
dB
dB
ps
ps
ps
Degrees
dB
MAx
6.3
7.0
uNITS
dB
dB
dBm
dBm
dBm
dBc
dBc
MAX19790
Average Attenuation-Control
Slope
Maximum Attenuation-Control
Slope
Attenuation Flatness Over
125MHz Bandwidth (Note 8)
Switching Time
Input Return Loss
Output Return Loss
Group Delay
Group-Delay Flatness Over
125MHz Bandwidth
Group-Delay Change vs.
Attenuation Control
Insertion Phase Change vs.
Attenuation Control
V
CTRL
= +1.0V to +3.5V
V
CTRL
= +1.0V to +3.5V
Peak-to-peak for V
CTRL
= +1.0V to +3.1V,
T
C
= +25NC
From 15dB to 0dB attenuation (Note 9)
All gain settings
All gain settings
Input/output 50I lines deembedded
Peak-to-peak
V
CTRL
= +1.0V to +4.0V
V
CTRL
= +1.0V to +4.0V
Note 5:
Operating outside this range for extended periods may affect device reliability. Limit pin input current to 40mA when V
CC
is not present (see Table 1 for R4 value).
Note 6:
Operation outside this range is possible, but with degraded performance of some parameters. See the
Typical Operating
Characteristics.
Note 7:
f
1
= 1500MHz, f
2
= 1501MHz, -10dBm/tone at attenuator input.
Note 8:
Guaranteed by design and characterization.
Note 9:
Switching time is measured from 50% of the control signal to when the RF output settles to
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