Datasheet

AD8331/AD8332/AD8334
Rev. G | Page 40 of 56
AD8331 EVALUATION BOARD SCHEMATICS
03199-116
MODE
VIP
GAIN
VIN
LOP
COML
LMD2
LON
VPS
INH
VOH
VOL
COMM
COMM
ENBV
VPOS
CLMP
HILO
VCM
C2
C1
R4
R8
LNA2
+5V
LO
+5
V
+5V
GN_SLOPE
W5
W6
GNDGND2GND1
DUT
AD8331ARQ
GND4GND3
+
1
2
3
4
5
6
7
8
9
10
20
18
17
16
15
14
13
12
11
C3
10µF
10V
L1
120nH FB
C
INH
0.1µF
CLMD
0.1µF
L2
120nH FB
CSH
22pF
C6
0.1µF
LON
LOP
C16
0.1µF
C14
0.1µF
GAIN
C34
1nF
COMPONENTS IN GRAY ARE
OPTIONAL AND USER SUPPLIED.
L4
120nH FB
VO
VOH
T1
1:1
R16
237
R20
237
C24
0.1µF
C26
0.1µF
R43
100
R44
100
L3
120nH FB
C17
0.1µF
C32
0.1µF
C18
0.1µF
ENB
LNA_EN
19
GN_HI_LO
+5V
+5V
VGA_EN
INPUT
CLAMP
DIODES
3D1
BAT64-04
CFB
0.018µF
RFB
274µF
RCLMP
VCM
L5
120nH FB
PROBE
RCLMP
ENABLE
DISABLE
ENABLE
DISABLE
HI
LO
DOWN
UP
Figure 96. Schematic of the AD8331 Evaluation Board