AD6623_EvalBoard_Schematics| Application Note
6
5
4
J103 *DNI
3
R110
1 2
2
1
VIO
1 1 1 1 1 1 1
1 2K R102
2 2
2
2K R101
2K R103
2
2K R104
2
2K R105
2
2K R106
2
2K R107
2
2K R108 MODE
2
HEADER2
1K
VDADUC
GND
/RESET
VDADUC
/WR
/RESET
MODE
/WR
/RD
/CS
/CS
/RD
1
A0
A1
A2
A0
A1
A2
D
D7
D
39
U101
52 P0.7/AD7
51 P0.6/AD6
50 P0.5/AD5
49 P0.4/AD4
48 DVDD48
47 DGND47
46 P0.3/AD3
45 P0.2/AD2
44 P0.1/AD1
43 P0.0/AD0
42 ALE
41 PSEN
40 EA
RDY ADC1 ADC2 SCLKA R109
1 2
P2.7/A15/A23
1 2 3 4 5 6 7 8
P1.0/ADC0/T2 P1.1/ADC1/T2EX P1.2/ADC2 P1.3/ADC3 AVDD5 AGND6 CREF VREF DAC0 DAC1 P1.4/ADC4 P3.3/INT1/MISO P1.5/ADC5/SS P1.6/ADC6 P1.7/ADC7 P3.2/INT0 P3.0/RXD P3.1/TXD P3.5/T1/CONST
P2.6/A14/A22 P2.5/A13/A21 P2.4/A12/A20 DGND35 DVDD34 XTAL2 XTAL1 P2.3/A11/A19 P2.2/A10/A18 P2.1/A9/A17 P2.0/A8/A16 SDAT/MOSI SCLOCK P3.6/WR P3.7/RD
38 37 36 35 34 33 32 31 30 29 28 27
D6 D5 D4 GND
1 2
*DNI J101 /CS C104 33PF Y101 14.7456 MHZ A0 A1 A2 MODE C105
1 2
ADC3 C101
1 2
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 TDI
20K
VDADUC GND
VDADUC
5PF
D3 D2 D1 D0
C102
C103 9 0.1UF ADC4 ADC5 10 11 12
2 1
C
33PF
/WR /RESET /RD D0 D1 D2 D3 D4 D5 D6
0.1UF
C
1
DGND21 21
DVDD20
13
14
15
16
17
18
19
20
P3.4/T0 22
RESET
VDADUC
RESET
/TRST
ADC6
ADC7
GND
TDO
TMS
TCK
TDI
SD
GND
2
23
24
25
26
D7 /TRST TCK TMS
U102 VDRES 3 S101 1 SWMOM C107
1 2
VDTRC RESET 2 U103 C106
1 2
TDO C108
1 2
B
VCC
HEADER40 2 4 5 6 13 C1+ C1C2+ C2T1IN T2IN R1OUT R2OUT EN GND DB9HM ADM3222ARU 18 T1OUT T2OUT R1IN R2IN SD 17 8 16 9 20 SD 0.1UF 1 6 2 7 3 8 4 9 5 VCC V+ V19 3 7 C109 J102
1 2
B
2
ADM810
1
0.1UF
0.1UF
0.1UF 5V
2
3VDAC R111 2K
1 1 2
R113 1.5K
12 15
ADC1
2 2
ADC2
10 1
R112 2K
1 1
R114 3.92K
VCORE
2
VIO
2
VDADUC
2
E101 R119 1.5K
1
1
A
R115 1.5K
1 1
R117 2K
2
R121 *DNI *DNI = Do Not Install ADC7 R122 *DNI
1 1
A
ADC4
2 2
ADC5
2
ADC6 R120 3.92K
1 2
R116 3.92K
1 1
R118 2K
Analog Devices
7910 Triad Center Dr. Greensboro, NC 27409
AD6623 Evaluation Board Filename: 6623CE01C Rev: C JCP 1 of xxx 6
Date: 6 5 4 3 2
11-21-2001_16:01
Sheet 1
AD6623_EvalBoard_Schematics Application Note analog Download PDF
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