MAX2045 MAXIM [Maxim Integrated Products], MAX2045 Datasheet - Page 7

• Manufacturer Part Number: MAX2045
• Description: High-Gain Vector Multipliers
• Manufacturer: MAXIM [Maxim Integrated Products]

MAX2047 ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit as shown in Figure 1; V
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
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).
Note 3: Radius is defined as (VI
Note 4: When using the I/Q current inputs, maximum gain occurs when one differential input current is zero and the other corre-
Output Noise Power
IP1dB
IIP3
CURRENT MODE
Power Gain (Note 4)
Power-Gain Range
Gain Flatness Over Frequency
Phase Flatness Over Frequency
Output measurements taken at the RF OUTPUT of the Typical Operating Circuit.
and VQ2. For differential operation: VI1 = V
VQ. For single-ended operation: VI1 = V
sponding differential input is 5mA. Minimum gain occurs when both differential inputs are equal.
PARAMETER
_______________________________________________________________________________________
2
+ VQ
CC
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
Difference in gain between II1 = IQ1 = 4mA, II2 = IQ2 =
0mA and II1 = IQ1 = 1mA, II2 = IQ2 = 0mA
II1 = IQ1 = 4mA,
II2 = IQ2 = 0mA
Electrical delay removed,
II1 = IQ1 = 4mA,
II2 = IQ2 = 0mA
2
= 5V and T
)
0.5
. VI denotes the difference between VI1 and VI2. VQ denotes the difference between VQ1
REF
CC
A
REF
= +25°C, unless otherwise noted.) (Notes 1, 2, 3)
= 4.75V to 5.25V, T
+ VI, VI2 = V
High-Gain Vector Multipliers
+ 0.5
CONDITIONS
✕
GSM, f
±62.5MHz
US cell, f
±62.5MHz
JCDMA, f
±60MHz
KDI/JDC/PDC, f
±30MHz
GSM, f
±62.5MHz
US cell, f
±62.5MHz
JCDMA, f
±60MHz
KDI/JDC/PDC, f
±30MHz
VI, VI2 = V
REF
, VQ1 = V
IN
IN
A
IN
IN
= 942.5MHz
= 942.5MHz
IN
IN
= -40°C to +85°C, R
REF
= 881.5MHz
= 881.5MHz
= 850MHz
= 850MHz
- 0.5
REF
IN
IN
= 820MHz
= 820MHz
+ VQ, VQ2 = V
✕
VI, VQ1 = V
BIAS
MIN
REF
REF
= 280Ω, f
.
+ 0.5
-147.5
-148.4
-148.6
-148.6
±0.25
±0.12
15.6
14.1
TYP
14.3
±0.1
±0.1
±0.8
±1.1
±1.3
±0.4
-6.2
6.1
6.9
8.1
✕
IN
VQ, VQ2 = V
= 915MHz, input cur-
MAX
REF
Degrees
dBm/Hz
UNITS
dBm
dBm
- 0.5
dB
dB
dB
✕
7