VGAIN (mV)
鍙冩暩璩囨枡
鍨嬭櫉锛� AD8336ACPZ-WP
寤犲晢锛� Analog Devices Inc
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閰嶇敤锛� AD8336-EVALZ-ND - BOARD EVALUATION FOR AD8336
AD8336
Rev. C | Page 13 of
鈥�20
28
O
U
T
P
U
T
IP
3(
d
B
m
)
25
200
30
鈥�800
VGAIN (mV)
鈥�600
800
鈥�400
600
鈥�200
400
0
20
0
10
40
H
ARM
O
N
IC
D
IS
T
O
R
T
IO
N
(d
Bc)
鈥�30
鈥�50
鈥�60
鈥�80
鈥�70
鈥�40
VOUT = 0.5V p-p
VOUT = 1V p-p
VOUT = 2V p-p
VOUT = 4V p-p
OUTPUT SWING OF PREAMP LIMITS
MINIMUM USABLE VGAIN LEVELS
HD3
f = 5MHz
400
VGAIN (mV)
鈥�600
800
鈥�400
600
鈥�200
200
0
06
22
8-
03
9
Figure 39. Third Harmonic Distortion vs. VGAIN
for Four Values of Output Voltage (VOUT)
HARM
O
NI
C
DI
S
T
O
RT
IO
N
(
d
B
c)
鈥�60
鈥�50
鈥�20
鈥�30
鈥�40
1M
鈥�70
FREQUENCY (Hz)
10M
50M
HD2
HD3
VOUT = 2V p-p
VGAIN = 0V
0
622
8-
0
40
Figure 40. Harmonic Distortion vs. Frequency
IM
D3
(
d
Bc)
鈥�60
鈥�50
鈥�20
鈥�30
鈥�70
鈥�40
鈥�80
1M
FREQUENCY (Hz)
10M
100M
0
鈥�10
VOUT = 1V p-p
VGAIN = 0V
TONES SEPARATED BY 100kHz
鈥�90
06
22
8-
04
1
Figure 41. IMD3 vs. Frequency
5
15
35
1MHz 500mV
1MHz 1V
10MHz 500mV
10MHz 1V
VOUT = 1V p-p
VGAIN = 0V
COMPOSITE INPUTS SEPARATED BY 100kHz
06
22
8-
0
42
200
鈥�800
VGAIN (mV)
鈥�600
800
鈥�400
600
鈥�200
400
0
Figure 42. Output-Referred IP3 (OIP3) vs. VGAIN
at Two Frequencies and Two Input Levels
IP
1d
B
(
d
Bm
)
0
鈥�30
鈥�10
10
30
20
鈥�20
VS = 卤5V
VS = 卤3V
VS = 卤12V
INPUT LEVEL LIMITED
BY GAIN OF PREAMP
06
22
8-
0
43
Figure 43. Input P1dB (IP1dB) vs. VGAIN at Three Power Supply Values (VS)
VO
L
TA
G
E
(V
)
鈥�1
2
0
1
3
鈥�2
300
鈥�100
TIME (ns)
100
200
0
鈥�3
VIN (V)
VOUT (V)
0
62
28
-0
44
Figure 44. Large-Signal Pulse Response of the Preamp
(See Figure 65)
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