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DATA SHEET
KH561
4
REV. 1A February 2001
KH561 Typical Performance Characteristics
(T
A
= +25°C, Circuit in Figure 1; unless specified)
Small Signal Gain and Phase
G
Frequency (MHz)
6
8
10
12
14
16
0
50
100
150
200
250
Maximally Flat
P
0
-90
-360
-180
-270
0% Overshoot
Gain
Phase
P
o
= 10dBm
Frequency Response vs. Gain
N
Frequency (MHz)
0
50
100
150
200
250
P
o
= 10dBm
A
v
= 10
A
v
= 5
A
v
= 15
A
v
= 20
Re-compensated at
Frequency Response vs. Output Power
G
Frequency (MHz)
16
12
6
0
40
80
120
160
200
10
8
14
P
o
= 10dBm
V
o
= 2V
pp
P
o
= 24dBm
V
o
= 10V
pp
P
o
= 27.5dBm
V
o
= 15V
pp
P
o
= 18dBm
V
o
= 5V
pp
Frequency Response vs. R
L
N
Frequency (MHz)
0
50
100
150
200
250
P
i
= -4dBm
R
L
= 50
R
L
= 25
R
L
= 75
R
L
= 100
Fixed gain and
Frequency Response vs. Power Supply
Frequency (MHz)
0
50
100
150
200
250
P
o
= 10dBm
±
V
CC
= 18
±
V
CC
= 12
±
V
CC
= 15
±
V
CC
= 10
G
16
12
6
10
8
14
Re-compensated at
Frequency Response vs. R
o
Frequency (MHz)
0
50
100
150
200
250
P
i
= -4dBm
N
R
o
= 50
R
o
= 25
R
o
= 75
R
o
= 100
Response measured with matched load
o
Frequency Response vs. Gain (R
o,
R
L
= 75
)
Frequency (MHz)
0
50
100
150
200
250
V
o
= 2V
pp
N
A
v
= 5
A
v
= 10
A
v
= 15
A
v
= 20
Re-compensated
Gain Flatness/Deviation from Linear Phase
G
Frequency (MHz)
0
20
40
60
80
100
P
°
/
Gain
Phase
P
o
= 10dBm
Internal Current Gain and Phase
G
Frequency (MHz)
-30
-20
0
20
30
10
0
100
200
300
400
500
P
°
/
180
90
-180
0
-90
Gain
Phase
-10
C
x
= 0
R
L
= 0
Phase consistant with current
Two Tone, 3rd-Order Intermodulation
I
Frequency (MHz)
45
35
20
0
20
40
60
80
100
30
25
40
A
v
= 15
A
v
= 5
A
v
= 10
A
v
= 20
Re-compensated
2nd Harmonic Distortion vs. Frequency
D
Output Power (dB)
-25
-45
-75
4
8
12
16
20
24
-55
-65
-35
50MHz
10MHz
20MHz
100MHz
3rd Harmonic Distortion vs. Frequency
D
Output Power (dB)
-25
-45
-75
4
8
12
16
20
24
-55
-65
-35
50MHz
10MHz
20MHz
100MHz
Frequency Response Driving C
L
Frequency (MHz)
0
50
100
150
200
250
G
A
v
= +5
R
o
= 25
V
o
= 2V
pp
C
L
= 100pF
C
L
= 20pF
C
L
= 50pF
Re-compensated
C
L
2nd Harmonic Distortion Driving C
L
Frequency (MHz)
10
20
30
40
50
100
D
A
v
= +5
R
o
= 25
V
o
= 2V
pp
C
L
= 100pF
C
L
= 20pF
C
L
= 50pF
70
-80
-70
-60
-50
-40
-30
Compensation as shown in
3rd Harmonic Distortion Driving C
L
Frequency (MHz)
10
20
30
40
50
100
D
A
v
= +5
R
o
= 25
V
o
= 2V
pp
C
L
= 100pF
C
L
= 20pF
C
L
= 50pF
70
-80
-70
-60
-50
-40
-30