Dual 50MHz to 1000MHz High-Linearity,
Serial/Analog-Controlled VGA
RECOMMENDED AC OPERATING CONDITIONS
PARAMETER
RF Frequency
SYMBOL
f RF
(Note 5)
CONDITIONS
MIN
50
TYP
MAX
1000
UNITS
MHz
+5V SUPPLY AC ELECTRICAL CHARACTERISTICS (each path, unless otherwise noted)
( Typical Application Circuit , V CC = V CC_AMP_1 = V CC_AMP_2 = V CC_RG = +4.75V to +5.25V, attenuators are set for maximum gain,
RF ports are driven from 50 I sources, AMPSET = 0, PD_1 = PD_2 = 0, 100MHz P f RF P 500MHz, T C = -40 N C to +85 N C. Typical
values are at maximum gain setting, V CC = +5.0V, P IN = -20dBm, f RF = 350MHz, and T C = +25 N C, unless otherwise noted.) (Note 6)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
f RF = 50MHz
f RF = 100MHz
f RF = 200MHz
22.4
22.3
22.2
Small-Signal Gain
G
f RF = 350MHz, T C = +25 N C
19.5
21.9
23.5
dB
f RF = 450MHz
f RF = 750MHz
f RF = 900MHz
21.7
21.4
20.6
Gain vs. Temperature
From 100MHz to 200MHz
-0.006
0.18
dB/ N C
Gain Flatness vs. Frequency
Any 100MHz frequency band from 200MHz
to 500MHz
f RF = 50MHz
f RF = 100MHz
f RF = 200MHz
0.19
4.4
4.4
4.4
dB
Noise Figure
NF
f RF = 350MHz
4.6
dB
f RF = 450MHz
f RF = 750MHz
f RF = 900MHz
4.7
5.3
5.7
Total Attenuation Range
f RF = 350MHz, T C = +25 N C
30
32.9
dB
Output Second-Order Intercept
Point
OIP2
P OUT = 0dBm/tone, D f = 1MHz, f 1 + f 2
53.7
dBm
RF input 1 amplified power measured at RF
output 2 relative to RF output 1, all unused
48.7
Path Isolation
ports terminated to 50 I
RF input 2 amplified signal measured at RF
output 1 relative to RF output 2, all unused
ports terminated to 50 I
P OUT = 0dBm/tone, D f = 1MHz, f RF = 50MHz
P OUT = 0dBm/tone, D f = 1MHz, f RF = 100MHz
P OUT = 0dBm/tone, D f = 1MHz, f RF = 200MHz
48.6
46.3
44.2
41.1
dB
Output Third-Order Intercept Point
OIP3
P OUT = 0dBm/tone, D f = 1MHz, f RF = 350MHz
37.1
dBm
P OUT = 0dBm/tone, D f = 1MHz, f RF = 450MHz
P OUT = 0dBm/tone, D f = 1MHz, f RF = 750MHz
P OUT = 0dBm/tone, D f = 1MHz, f RF = 900MHz
34.9
28.2
24.6
_______________________________________________________________________________________
3
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