MAX2066
50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
4 _______________________________________________________________________________________
+5V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
(
Typical Application Circuit
, V
CC
= V
DD
= +4.75 to +5.25V, HC mode with attenuator set for maximum gain, 50MHz ≤ f
RF
≤ 1000MHz,
T
C
= -40°C to +85°C. Typical values are at V
CC
= V
DD
= +5.0V, HC mode, P
IN
= -20dBm, f
RF
= 200MHz, and T
C
= +25°C, unless
otherwise noted.) (Note 6)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output -1dB Compression Point P
1dB
f
RF
= 350MHz, T
C
= +25°C (Note 5, 8) 17 18.7 dBm
Second Harmonic
P
OUT
= +3dBm, f
IN
= 200MHz, T
C
= +25°C
(Note 5)
-60 -68 dBc
Third Harmonic
P
OUT
= +3dBm, f
IN
= 200MHz, T
C
= +25°C
(Note 5)
-72 -88 dBc
Group Delay Includes EV kit PCB trace delay 0.8 ns
Input Return Loss 50Ω source, maximum gain setting 23 dB
Output Return Loss 50Ω load, maximum gain setting 18 dB
DIGITAL ATTENUATOR
Insertion Loss 2.5 dB
Input Second-Order Intercept
Point
IIP2
P
RF1
= 0dBm, P
RF2
= 0dBm, Δf = 1MHz,
f
1
+ f
2
52 dBm
Input Third-Order Intercept Point IIP3 P
RF1
= 0dBm, P
RF2
= 0dBm, Δf = 1MHz 41 dBm
Attenuation Range 31.2 dB
Step Size 1dB
Relative Step Accuracy 0.2 dB
Absolute Step Accuracy 0.45 dB
0dB to 16dB 4.8
24dB 8
Insertion Phase Step f
RF
= 170MHz
31dB 10.8
d eg r ees
ET = 15ns 1.0
Amplitude Overshoot/Undershoot
Between any two
states
ET = 40ns 0.05
dB
31dB to 0dB 25
Switching Speed
RF settled to within
±0.1dB
0dB to 31dB 21
ns
Input Return Loss 50Ω source, maximum gain setting 19 dB
Output Return Loss 50Ω load, maximum gain setting 19 dB
SERIAL PERIPHERAL INTERFACE (SPI)
Maximum Clock Speed f
CLK
20 MHz
Data-to-Clock Setup Time t
CS
2ns
Data-to-Clock Hold Time t
CH
2.5 ns
Clock-to-CS Setup Time t
ES
3ns
CS Positive Pulse Width t
EW
7ns
CS Setup Time t
EWS
3.5 ns
Clock Pulse Width t
CW
5ns
Note 5: Guaranteed by design and characterization.
Note 6: All limits include external component losses. Output measurements are performed at RF output port of the
Typical
Application Circuit
.
Note 7: Operating outside this range is possible, but with degraded performance of some parameters.
Note 8: It is advisable not to continuously operate the VGA RF input above +15dBm.
