AD9228 View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'AD9228' PDF : 52 Pages View PDF
POPULATE L301-L308 WITH 0Ω
RESISTORS OR DESIGN YOUR
OWN FILTER.
R301
DNP
C301
L301 DNP
0Ω
R302
DNP
C302
L302 L303 DNP L304
0Ω 0Ω
0Ω
C303
L305 DNP
0Ω R303
DNP
L306 L307
0Ω 0Ω
C304
DNP L308
R304 0Ω
DNP
EXTERNAL VARIABLE GAIN DRIVE
VG
VARIABLE GAIN CIRCUIT
(0-1.0V DC)
VG
AVDD_5V
CW
GND
R320 R319
39kΩ 10kΩ
C305
0.1µF
R307
187Ω
R305
374Ω
C306 C307
0.1µF 0.1µF
R306
374Ω
R308
187Ω
R309
187Ω
C308
0.1µF
C309
1000pF
R310
187Ω
C310
0.1µF
R311
10kΩ
DNP
R313
10kΩ
DNP
R312
10kΩ
C311
0.1µF
U301
25
26
27
28
ENBV
ENBL
HILO
VCM1
29
30
31
32
VIN1
VIP1
COM1
LOP1
C312
0.1µF
AD8332
RCLMP
GAIN
MODE
VCM2
VIN2
VIP2
16
15
14
13
12
VG
COM2 11
C313
LOP2 10
0.1µF
9
C314
0.1µF
R314
10kΩ
DNP
R315 C315
10kΩ 10µF
C316
0.1µF
R316
274Ω
C317
0.018µF
C320
0.1µF
C321
0.1µF
R317
274Ω
C322
0.018µF
C325 C326
0.1µF 10µF
R318
10kΩ
C318
22pF
L309
120nH
C319
0.1µF
C323
22pF
L310
120nH
C324
0.1µF
DNP: DO NOT POPULATE
INH4
INH3
Figure 75. Evaluation Board Schematic, Optional DUT Analog Input Drive and SPI Interface Circuit
AD9228
Rev. B | Page 41 of 52
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