Datasheet
MAX2065
50MHz to 1000MHz High-Linearity, Serial/
Parallel-Controlled Analog/Digital VGA
4 _______________________________________________________________________________________
+5V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
(
Typical Application Circuit
, V
CC
= +4.75 to +5.25V, HC mode with each attenuator set for maximum gain, 50MHz ≤ f
RF
≤ 1000MHz,
T
C
= -40°C to +85°C. Typical values are at V
CC
= +5.0V, HC mode, P
IN
= -20dBm, f
RF
= 200MHz, and T
C
= +25
o
C, unless otherwise
noted.) (Note 5)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output -1dB Compression Point P
1dB
350MHz, T
C
= +25°C (Note 8) 17 18.7 dBm
Second Harmonic
P
OUT
= +3dBm, f
RF
= 200MHz, T
C
= +25°C
(Note 7)
-60 -67 dBc
Third Harmonic
P
OUT
= +3dBm, f
RF
= 200MHz, T
C
= +25°C
(Note 7)
-71 -83 dBc
Input Return Loss 50Ω source, maximum gain setting 18 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 8Insertion 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 19 dB
Output Return Loss 50Ω load 19 dB
ANALOG ATTENUATOR
Insertion Loss 1.2 dB
Input Second-Order Intercept
Point
IIP2
P
RF1
= 0dBm, P
RF2
= 0dBm, maximum gain
setting, Δf = 1MHz, f
1
+ f
2
70 dBm
Input Third-Order Intercept Point IIP3
P
RF1
= 0dBm, P
RF2
= 0dBm, maximum gain
setting, Δf = 1MHz
36 dBm
Attenuation Range Analog control input 31.1 dB
Gain Control Slope Analog control input -12.5 dB/V
Maximum Gain Control Slope Over analog control input range -35 dB/V
Insertion Phase Change Over analog control input range 18 D eg r ees
Group Delay Maximum gain setting 0.98 ns
Group Delay vs. Control Voltage Over analog control input range -0.25 ns
Analog Control Input Range 0.25 2.75 V