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1700MHz to 2200MHz High-Linearity,
SPI-Controlled DVGA with Integrated Loopback Mixer
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2059 Typical Application Circuit , V CC = +4.75V to +5.25V, digital attenuators set for maximum gain, 1700MHz ≤ f RF ≤ 2200MHz,
40MHz ≤ f LO ≤ 100MHz, T C = -40°C to +85°C. Typical values are at V CC = 5.0V, P IN = 0dBm, f RF = 1850MHz, P LO = -6dBm, f LO =
95MHz, f LBOUT = f RF - f LO , and T C = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Output -1dB Compression Point
RMS Error Vector Magnitude
SYMBOL
OP 1dB
EVM
CONDITIONS
(Note 3)
P OUT = +12dBm, EDGE modulation
MIN
TYP
18.4
0.5
MAX
UNITS
dBm
%
200kHz offset
-39.1
Spurious Emissions in 30kHz
Bandwidth
P OUT = +12dBm,
EDGE modulation
(Note 4)
400kHz offset
600kHz offset
-72.5
-83.1
dBc
1.2MHz offset
-85.7
Noise Figure
Input Return Loss
Output Return Loss
NF
50 Ω source, minimum attenuation setting
50 Ω load, minimum attenuation setting
8.1
19
24
dB
dB
dB
5-BIT DIGITAL ATTENUATORS
Insertion Loss
Attenuator measured separately Z S = Z L =
50 Ω
5
dB
Attenuator measured separately Z S = Z L =
Input 3rd-Order Intercept Point
IIP3
50 Ω , two tones: f RF1 = 1850MHz, f RF2 =
40
dBm
1851MHz, P IN1 = P IN2 = +5dBm
Control Range
Attenuation Step Size Variation
vs. Frequency
Attenuation Variation vs.
Temperature
Step Size
(Note 5)
1800MHz to 2000MHz
2000MHz to 2200MHz
1800MHz to 2200MHz,
T C = -40°C to +25°C
1800MHz to 2200MHz,
T C = +25°C to +85°C
28
±0.17
±0.29
±0.011
±0.023
1
dB
dB
dB/°C
dB
1800MHz to 2000MHz, all states
Relative Step Accuracy
represented. For steps 0–23dB, accuracy is
significantly improved. See Typical
+0.53
-0.97
dB
Operating Characterisitcs .
1800MHz to 2000MHz, all states
Absolute Step Accuracy
represented. For steps 0–23dB, accuracy is
significantly improved. See Typical
-3.5
+0.3
dB
Operating Characterisitcs .
No RF input, attenuator A stepped from 0 to
2dB, 7dB to 9dB, 15dB to 17dB, 0 to 31dB,
Spurious Emissions in 300kHz
Bandwidth
31dB to 0dB, with attenuator B at 0dB;
attenuator B stepped from 0 to 2dB, 7dB to
-89
dBm
9dB, 15dB to 17dB, 0 to 31dB, 31dB to
0dB, with attenuator A at 0dB (Note 6)
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