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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
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
From chip select transitioning high to the
Switching Speed
output settling to within 1dB of steady state
0.3
μs
output
LOOPBACK MIXER
LO Frequency
LO Input Power
f LO
P LO
(Note 2)
40
-6
100
0
MHz
dBm
Output Power
Gain Accuracy
Output 3rd-Order Intercept Point
Output Noise Floor
ON/OFF Switching Time
LBOUT to ATTEN_OUTB Isolation
ATTEN_OUTB to LBOUT Isolation
Output Return Loss
LO Port Return Loss
OIP3
P IN = +5dBm, f RF = 1850MHz, T C = +25°C
(Note 7)
1800MHz to 2000MHz
P IN = +5dBm, T C
= -40°C to +85°C
2000MHz to 2200MHz
Two tones: f RF1 = 1850MHz, f RF2 = 1850.2MHz,
P IN1 = P IN2 = +2dBm, T C = +25°C
P IN = +5dBm
LB_EN enable time
LB_EN disable time
Mixer enabled, attenuators A and B both set
to 31dB, P IN = +5dBm
Mixer disabled, P IN = 0dBm
Mixer enabled, 50 Ω load
Mixer disabled, 50 Ω load
50 Ω source
-15.4
-12.6
±2.2
±2.2
6.2
-137
0.12
0.12
55
50
20
13
28
-9.6
dBm
dB
dBm
dBc/Hz
μs
dB
dB
dB
dB
SERIAL PERIPHERAL INTERFACE (SPI)
Maximum Clock Speed
38
MHz
Data to Clock Setup Time
Data to Clock Hold Time
Clock to CS Setup Time
CS Positive Pulse Width
CS Negative Pulse Width
Clock Pulse Width
t CS
t CH
t ES
t EW
t EWN
t CW
1
9
4
18
24
13
ns
ns
ns
ns
ns
ns
Note 1: All limits include external component losses. Output measurements taken at RFOUT or LBOUT ports of the Typical
Application Circuit .
Note 2: Operating outside this range is possible, but with degraded performance of some parameters.
Note 3: Compression point characterized. It is advisable not to continuously operate the VGA RF input above +15dBm.
Note 4: Input RF source contribution to spurious emissions (Agilent ESG 4435B, PSA E4443A): 200kHz = -39.2dBc,
400kHz = -73.5dBc, 600kHz = -83.2dBc, 1.2MHz = -85.7dBc
Note 5: See the Applications Information section regarding effective attenuation range.
Note 6: No SPI clock input applied.
Note 7: Guaranteed by design and characterization.
4
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