MAX2047ETJ-T 查看數據表（PDF） - Maxim Integrated
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MAX2047ETJ-T Datasheet PDF : 21 Pages
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High-Gain Vector Multipliers
MAX2047 ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit as shown in Figure 1; VCC = 4.75V to 5.25V, TA = -40°C to +85°C, RBIAS = 280Ω, fIN = 915MHz, 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 VCC = 5V and TA = +25°C, unless otherwise noted.) (Notes 1, 2, 3)
PARAMETER
Output Noise Power
IP1dB
IIP3
CURRENT MODE
Power Gain (Note 4)
CONDITIONS
VI = VQ = 0.707V (radius = 1V)
VI = VQ = 0.5V (radius = 0.707V)
VI = VQ = 0.25V (radius = 0.35V)
VI = VQ = 0.125V (radius = 0.175V)
VI = VQ = 0.707V (radius = 1V)
VI = VQ = 0.125V (radius = 0.175V)
VI = VQ = 0.707V (radius = 1V)
VI = VQ = 0.125V (radius = 0.175V)
II1 = IQ1 = 4mA, II2 = IQ2 = 0mA
II1 = IQ1 = 1mA, II2 = IQ2 = 0mA
MIN TYP MAX UNITS
-147.5
-148.4
-148.6
dBm/Hz
-148.6
6.1
dBm
6.9
15.6
dBm
14.1
8.1
dB
-6.2
Power-Gain Range
Difference in gain between II1 = IQ1 = 4mA, II2 = IQ2 =
0mA and II1 = IQ1 = 1mA, II2 = IQ2 = 0mA
14.3
dB
GSM, fIN = 942.5MHz
±62.5MHz
±0.25
Gain Flatness Over Frequency
II1 = IQ1 = 4mA,
II2 = IQ2 = 0mA
US cell, fIN = 881.5MHz
±62.5MHz
JCDMA, fIN = 850MHz
±60MHz
±0.12
dB
±0.1
KDI/JDC/PDC, fIN = 820MHz
±30MHz
±0.1
GSM, fIN = 942.5MHz
±62.5MHz
±0.8
Phase Flatness Over Frequency
Electrical delay removed,
II1 = IQ1 = 4mA,
II2 = IQ2 = 0mA
US cell, fIN = 881.5MHz
±62.5MHz
JCDMA, fIN = 850MHz
±60MHz
±1.1
Degrees
±1.3
KDI/JDC/PDC, fIN = 820MHz
±30MHz
±0.4
Note 1: Guaranteed by design and characterization.
Note 2: All specifications reflect losses and delays of external components (matching components, baluns, and PC board traces).
Output measurements taken at the RF OUTPUT of the Typical Operating Circuit.
Note 3: Radius is defined as (VI2 + VQ2)0.5. VI denotes the difference between VI1 and VI2. VQ denotes the difference between VQ1
and VQ2. For differential operation: VI1 = VREF + 0.5 ✕ VI, VI2 = VREF - 0.5 ✕ VI, VQ1 = VREF + 0.5 ✕ VQ, VQ2 = VREF - 0.5 ✕
VQ. For single-ended operation: VI1 = VREF + VI, VI2 = VREF, VQ1 = VREF + VQ, VQ2 = VREF.
Note 4: When using the I/Q current inputs, maximum gain occurs when one differential input current is zero and the other corre-
sponding differential input is 5mA. Minimum gain occurs when both differential inputs are equal.
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