Datasheet

LTC6412
10
6412fa
TYPICAL PERFORMANCE CHARACTERISTICS
2nd Harmonic Distortion vs
Control Voltage Over P
OUT
140MHz Noise Figure vs Gain
Setting Over Temperature
Output P
1dB
at G
MAX
vs Frequency
Over Supply Voltage
Input and Output P
1dB
vs Gain
Setting at 140MHz
140MHz Sideband Noise Near
G
MAX
at P
OUT
= +8dBm
2nd Harmonic vs Distortion vs
Control Voltage Over Frequency
3rd Harmonic Distortion vs
Control Voltage Over Frequency
Noise Figure at G
MAX
vs
Frequency Over Temperature
Electrical Performance in Test Circuits A and B at T
A
= 25°C and V
CC
= 3.3V unless otherwise noted.
3rd Harmonic Distortion vs
Control Voltage Over P
OUT
–V
G
VOLTAGE (V)
0
–120
HD2 (dBc)
–100
–80
–60
–40
–20
0.2
G
MAX
G
MIN
0.4 0.6 0.8
6412 G19
1.0 1.2
P
OUT
= 0dBm
FREQ = 280MHz
FREQ = 140MHz
FREQ = 70MHz
–V
G
VOLTAGE (V)
0
–120
HD3 (dBc)
–100
–80
–60
–40
–20
0.2
G
MAX
G
MIN
0.4 0.6 0.8
6412 G20
1.0 1.2
P
OUT
= 0dBm
FREQ = 280MHz
FREQ = 70MHz FREQ = 140MHz
FREQUENCY (MHz)
0
NOISE FIGURE (dB)
8
10
12
300
6412 G21
6
4
100 200 400
250
50 150 350
2
0
14
85°C
–40°C
25°C
–V
G
VOLTAGE (V)
0
–120
HD2 (dBc)
–100
–80
–60
–40
–20
0.2
G
MAX
G
MIN
0.4 0.6 0.8
6412 G22
1.0 1.2
FREQ = 140MHz
POUT = 3dBm
P
OUT = 0dBm
P
OUT = –3dBm
INPUT
ATTENUATOR
LIMITED
–V
G
VOLTAGE (V)
0
–120
HD3 (dBc)
–100
–80
–60
–40
–20
0.2
G
MAX
G
MIN
0.4 0.6 0.8
6412 G23
1.0 1.2
FREQ = 140MHz
INPUT
ATTENUATOR
LIMITED
P
OUT
= 3dBm
P
OUT
= –3dBm P
OUT
= 0dBm
GAIN SETTING (dB)
–20
NOISE FIGURE (dB)
25
30
35
20
6412 G24
20
15
0
–10
0
10
–15
–5
5
15
10
5
45
85°C
40
–40°C
25°C
FREQUENCY (MHz)
0
0
OUTPUT P1dB (dBm)
2
6
8
10
20
3.6V
3.3V
14
100
200
250
6412 G25
4
16
18
12
50 150
300
350
400
3V
GAIN SETTING (dB)
–20
P1dB (dBm)
10
15
20
–5 5 20
6412 G26
5
0
–5
–15 –10
0
10 15
INPUT P1dB
OUTPUT P1dB
INPUT
ATTENUATOR
LIMITED
OUTPUT
AMPLIFIER
LIMITED
OFFSET FROM 140MHz (Hz)
–20000 20000
POWER DENSITY (dBc/Hz)
–60
–40
–20
6412 G27
–80
–100
–10000 100000
–120
–140
0
GAIN = G
MAX
– 2dB