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High-Gain Vector Multipliers
MAX2045 ELECTRICAL CHARACTERISTICS (continued)
( Typical Operating Circuit as shown in Figure 1; V CC = 4.75V to 5.25V, T A = -40 ° C to +85 ° C, R BIAS = 280 ? , f IN = 2.14GHz, input cur-
rent range = 0 to 4mA (if using a current-mode DAC), and differential input voltage range = 0 to 0.707V (if using a voltage-mode
DAC). If using a current-mode DAC, voltage mode I/Q inputs are left open. If using a voltage-mode DAC, all current-mode I/Q inputs
are left open. Typical values are at V CC = 5V and T A = +25 ° C, unless otherwise noted.) (Notes 1, 2, 3)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CURRENT MODE
Power Gain (Note 4)
Power-Gain Range
Gain Flatness Over Frequency
Phase Flatness Over Frequency
II1 = IQ1 = 4mA, II2 = IQ2 = 0mA
II1 = IQ1 = 1mA, II2 = IQ2 = 0mA
Difference in gain between II1 = IQ1 = 4mA, II2 = IQ2 =
0mA and II1 = IQ1 = 1mA, II2 = IQ2 = 0mA
II1 = IQ1 = 4mA, II2 = IQ2 = 0mA; UMTS,
f IN = 2140MHz ± 100MHz
Electrical delay removed, II1 = IQ1 = 4mA,
II2 = IQ2 = 0mA
6.2
-8.7
14.9
± 0.27
± 0.8
dB
dB
dB
Degrees
MAX2046 ELECTRICAL CHARACTERISTICS
( Typical Operating Circuit as shown in Figure 1; V CC = 4.75V to 5.25V, T A = -40 ° C to +85 ° C, R BIAS = 280 ? , f IN = 1.9GHz, input cur-
rent range = 0 to 4mA (if using a current-mode DAC), and differential input voltage range = 0 to 0.707V (if using a voltage-mode
DAC). If using a current-mode DAC, voltage mode I/Q inputs are left open. If using a voltage-mode DAC, all current-mode I/Q inputs
are left open. Typical values are at V CC = 5V and T A = +25 ° C, unless otherwise noted.) (Notes 1, 2, 3)
PARAMETER
Frequency Range
CONDITIONS
MIN
1740
TYP
MAX
2060
UNITS
MHz
RF Input Return Loss
RF Output Return Loss
VOLTAGE MODE
VI = VQ = 0.707V (radius = 1V)
-21.1
-21.7
7.4
dB
dB
Power Gain
Power-Gain Range
Reverse Isolation
VI = VQ = 0.5V (radius = 0.707V)
VI = VQ = 0.25V (radius = 0.35V)
VI = VQ = 0.125V (radius = 0.175V)
Difference in gain between VI = VQ = 0.707V and
VI = VQ = 0.125V
Over entire control range
3.8
-2.5
-8.2
15.6
-76
dB
dB
dB
Maximum Power Gain for
Continuous Coverage of Phase
0 to 360 ° (radius = 1V)
6.5
dB
Change
Maximum Power Gain with
Reduced Phase Coverage
Group Delay
Gain Drift Over Temperature
0 to 360 ° (radius = 1V)
VI = VQ = 0.707V (radius = 1V)
VI = VQ = 0.707V (radius = 1V)
7.4
1.54
-0.026
dB
ns
dB/ ° C
Gain Flatness Over Frequency
VI = VQ = 0.707V
(radius = 1V)
PCS, f IN = 1960MHz
± 100MHz
DCS, f IN = 1842.5MHz
± 100MHz
± 0.14
± 0.3
dB
4
_______________________________________________________________________________________
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