Analog Devices AD9574 Schematic

8 7
D
1
REF0P
REF0_P/XTAL0_A
2
REF0N
REF0_N/XTAL0_B
3
VDD_REF0
VDD_REF0
4
VDD_REF1
VDD_REF1
5
REF1N
REF1_N/XTAL1_B
6
REF1P AD9574
REF1_P/XTAL1_A
7
PPR2
PPR2
8
VDD_OUT0/1
VDD_OUT01
9
OUT0N
OUT0_N
10
OUT0P
OUT0_P
11
OUT1P
OUT1_P
12
OUT1N
OUT1_N
C
CURRENT ESTIMATION:180 MA
EXTERNAL LPF CIRCUITS
B
LF
LDO_BYPASS
GND
PLEASE PLACE CLOSE TO THE PART
PPR1=0,2,4, C2=1NF, R2=0OHM
PPR1=1,3,5, C2=2NF, R2=0OHM
PPR1=6,7, C2=2NF, R2=4.75KOHM
A
8
7
6
U101
REF IN SELECT
36
VDD_OUT2/3
VDD_OUT23
35
REF_FREQ_H
REF_FHI R112
34
REF_FREQ_L 3V3_9574
REF_FLO
33
OUT5N 3.9K
OUT5_N
32
OUT5P
OUT5_P REF1
31
VDD_OUT5
VDD_OUT5
30
VDD_OUT4
VDD_OUT4
29
OUT4P
OUT4_P
28
OUT4N
OUT4_N
27
PPR3
PPR3
26 DEFAULT: CONNECT PIN2 AND PIN3
PPR4
PPR4
25
REFMON
REFMON
AD9574BCPZ
RESETB
R2
3V3_9574 R130 0
C2
R118
REF_SWITCH 0
2000PF
REF_ACTIVE R119 0
R120
REF_FREQ_H 0
REF_FREQ_L R121 0
C123
LD R122
0
0.47UF
GND
R123
3V3_9574
DNI
6
4
5
REF MONITOR SELECT
REF_SEL
R113 R114
GND 3V3_9574
3.9K 3.9K
REF0
PPR WITH MONITOR
P101
SAMTECTSW10608GS3PIN
DEFAULT: CONNECT PIN2 AND PIN3
RESETB
3V3_9574
R116
REF_FREQ_L
3.9K
REF_FREQ_H
S100 REF_ACTIVE
1A 2A
REF_SWITCH
1B 2B
GND
XO0_EN
7914J-1-000E
XO1_EN
TSW-106-08-G-D
GND
THIS CONNECTOR IS USED FOR DEBUGGING
AND ENABLE OR DISABLE XO OF REF_IN
XO IS DISABLED WHEN CONNECTED WITH GND
DEFAULT DISABLE: CONNECT XO0_EN AND XO1_EN WITH GND
DS102
R125
A
C129
300
TLMS1100-GS08 (RED)
GND
DS103
0.1UF R126
U301
20 10
A
300
TLMS1100-GS08 (RED)
2 VCC GND 18
I0 O0
3 17
DS104
I1 O1
R127
4 16
I2 O2
5 15 A
300
I3 O3
TLMS1100-GS08 (RED)
6 14
I4 O4
7 13
DS105
I5 O5 R128
8 12
I6 O6
9 11 A
300
I7 O7
TLMS1100-GS08 (RED)
EN1_N EN2_N
1 19
74LVC541APW
DS106
R129
A
R124 300
GND TLMS1100-GS08 (RED)
0 0
5 4
3 2
REV
VDD_REF0
VDD_REF1
VDD_PLL
REFMON
R115
GND
3.9K
VDD_MCLK_DIG
PPR W/O MONITOR
P102
SAMTECTSW10608GS3PIN
VDD_VCO
VDD_RFDIV
P103 P103
LD
1 2
3 4 REFMON
REF_SEL
5 6
RESETB
7 8
VDD_OUT4
GND
9 10
GND
11 12
TSW-106-08-G-D
VDD_OUT5
VDD_OUT2/3
GND
C
GND VDD_OUT6
C
GND
C
1
VDD_OUT0/1
GND
C
600OHM
GND
C
REPLACING R103 AND R108 WITH 600OHM OR LARGER FERRIT BEAD
CAN SUPPRESS THE SPUR OF CMOS OUPTUTS MORE THAN 10DB
IT'S BETTER TO PLACE THE POWER SUPPLY VIA BEFORE BYPASS CAP AND PART
AN A O L G
HW TYPE : Customer Evaluation
D E V C E S
Product(s): AD9574 Customer Board
: N/A
DESIGN VIEW
THIS DRAWING IS THE PROPERTY OF ANALOG DEVICES INC.
IT IS NOT TO BE REPRODUCED OR COPIED, IN WHOLE OR
<DESIGN_VIEW>
IN PART, OR USED IN FURNISHING INFORMATION TO OTHERS,
OR FOR ANY OTHER PURPOSE DETRIMENTAL TO THE INTERESTS
PTD ENGINEER
OF ANALOG DEVICES.
THE EQUIPMENT SHOWN HEREON MAY BE PROTECTED BY PATENTS
Liang Xu
OWNED OR CONTROLLED BY OWNED ANALOG DEVICES.
3 2
1
REVISIONS
DESCRIPTION DATE APPROVED
3V3_9574
D
GND
3V3_9574
GND
3V3_9574
GND
3V3_9574
GND
3V3_9574
C
GND
3V3_9574
GND
3V3_9574
GND
3V3_9574
GND
3V3_9574
B
GND
R108
1 2
3V3_9574
600OHM
GND
R103
2
3V3_9574
GND
A
SCHEMATIC
REV
DRAWING NO.
02_036355 A
SIZE SCALE
D SHEET 1 OF 4
D D D
1:1
1