Datasheet

AD9229
Rev. B | Page 29 of 40
RCLAMP PIN HILO PIN = LO = ± 50mV HILO PIN = HI = ± 75mV
HILO PIN HI GAIN RANGE = 2.25V TO 5.0V LO GAIN RANGE = 0V TO 1.0V
AD8332
ENBV
ENBL
HILO
VCM1
VIN1
VIP1
COM1
LOP1
25
26
27
28
29
30
31
32
LON1 VPS1 INH1 LMD1 LMD2 INH2 VPS2 LON2
1 2 3 4 5 6 7 8
RCLMP
GAIN
MODE
VCM2
VIN2
VIP2
COM2
LOP2
16
15
14
13
12
11
10
9
COMM
VOH1
VOL1
VPSV
NC
VOL2
VOH2
COMM
24 23 22 21 20 19 18 17
R403
187Ω
R401
10kΩ
DNP
R411
10kΩ
R412
274Ω
C417
10μF
C418
0.1μF
C421
0.1μF
C422
0.1μF
C423
18nF
R402
10kΩ
R406
187Ω
R405
187Ω
R408
187Ω
R404
374Ω
R407
374Ω
R415
DNP
R417
DNP
R418
DNP
C405
DNP
C406
DNP
R416
DNP
C403
DNP
C404
DNP
L405
DNP
L406
DNP L407
DNP
L408
DNP
L409
DNP
L410
DNP L411
DNP
L412
DNP
C413
0.1μF
C415
0.1μF
C407
0.1μF
C408
0.1μF
C409
0.1μF
C410
0.1μF
CH_ACH_B CH_B CH_A
C414
0.1μF
AVDD_VGA
AVDD_VGA
AVDD_VGA
R413
274Ω
C424
18nF
C425
22pF
C426
22pF
L413
120pH
L414
120nH
C427
0.1μF
C428
0.1μF
INH2 INH1
R409
10kΩ
DNP
R414
10kΩ
DNP
C420
10μF
C419
0.1μF
C416
0.1μF
AVDD_VGA
VG
R409
100kΩ
DNP
C412
0.1μF
C411
1nF
DNP : DO NOT POPULATE
MODE PIN POSITIVE GAIN SLOPE = 0V TO 1.0V NEGATIVE GAIN SLOPE = 2.25V TO 5.0V
OPTIONAL VGA DRIVE CIRCUIT FOR CHANNELS A AND B
POPULATE L405 TO L412
WITH 0Ω RESISTORS OR
DESIGN YOUR OWN FILTER
POWER-DOWN ENABLE (0V TO 1V = DISABLE POWER)
044181-044
U401
Figure 51. Evaluation Board Schematic, Optional DUT Analog Input Drive Continued