... the analog plusTM compa
EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone
PRELIMINARY
DVDD
1 | S1 |
|
|
|
24 |
|
|
| |
2 | 23 | S2 | R8 | 2.2K |
3 | 22 | S1 | R9 | 2.2K |
4 | 21 | S0 | R10 | 2.2K |
5 | 20 | D7 | R11 | 2.2K |
6 | 19 | D6 | R12 | 2.2K |
7 | 18 | D5 | R13 | 2.2K |
8 | 17 | D4 | R14 | 2.2K |
9 | 16 | D3 | R15 | 2.2K |
10 | 15 | D2 | R16 | 2.2K |
11 | 14 | D1 | R17 | 2.2K |
12 | 13 | D0 | R18 | 2.2K |
SW
DGND
DVDD
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| C14 |
|
| C15 |
| C16 |
| C17 |
| C18 |
| C19 |
| C20 | |||||||
|
|
|
|
|
|
|
|
| |||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 10uF |
|
| 0.1uF |
| 0.1uF |
| 0.01uF |
| 0.01uF |
| 0.01uF |
| 0.01uF | |||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DGND
SYNC |
|
| 82 | IO63 |
WCLK2 | R4 | 33 | 81 | IO62 |
|
|
| 80 | IO61 |
|
|
| 79 | IO60 |
|
|
| 78 | IO59 |
|
|
| 77 | IO58 |
|
|
| 76 | IO57 |
|
|
| 75 | IO56 |
|
|
| 73 | IO55 |
|
|
| 72 | IO54 |
|
|
| 71 | IO53 |
|
|
| 70 | IO52 |
|
|
| 69 | IO51 |
RCLK | R19 | 33 | 68 | IO50 |
ACK |
|
| 67 | IO49 |
RST | R20 | 33 | 66 | IO48 |
|
|
| 65 | CLK3 |
|
|
| 62 | CLK2 |
D7 |
|
| 61 | IO47 |
WCLK1 | R21 | 33 | 60 | IO46 |
|
|
| 59 | IO45 |
|
|
| 58 | IO44 |
D3 |
|
| 57 | IO43 |
|
|
| 56 | IO42 |
|
|
| 55 | IO41 |
S1 |
|
| 54 | IO40 |
|
|
| 52 | IO39 |
DVDD |
|
| 51 | IO38 |
JP2 |
|
| 50 | IO37 |
1 |
| SP_PB | 49 | IO36 |
2 |
| |||
3 |
|
| 48 | IO35 |
HEADER 3 DGND D6 |
|
| 47 | IO34 |
S0 |
|
| 46 | IO33 |
ADCCLK | R23 | 33 | 45 | IO32 |
|
|
| 41 | I1 |
DVDD
84 | 63 | 44 | 42 | 21 | 2 |
DVDD6 | DVDD5 | DVDD4 | DVDD3 | DVDD2 | DVDD1 |
MACH435
DGND8 | DGND7 | DGND6 | DGND5 | DGND4 | DGND3 | DGND2 | DGND1 |
74 | 64 | 53 | 43 | 32 | 22 | 11 | 1 |
I2
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
IO8
IO9
IO10
IO11
IO12
IO13
IO14
IO15
CLK0
CLK1
IO16
IO17
IO18
IO19
IO20
IO21
IO22
IO23
IO24
IO25
IO26
IO27
IO28
IO29
IO30
IO31
U4
MACH435
83
3 R5 33
DB5/SCLK
4 R6 33
DB6/SDATA
5 R7 33
DB7/LD
6
STROBE
8
S2
9
AUTOFD
12
13
14
15
D5
16
D1
17 |
| D4 | DVDD |
| Oscillator |
|
|
|
| U5 |
| ||
18 |
|
|
|
| ||
| D2 |
|
|
| ||
| 4 |
|
| 1 | ||
|
| V+ | NC | |||
19 |
| D0 | ||||
|
|
|
|
|
| |
20 |
|
| 3 | OUT | GND | 2 |
23 |
|
|
|
|
|
|
24 |
| SP | C12 | C13 |
|
|
|
|
|
|
|
| |
25 |
|
| 1uF | 0.1uF |
|
|
26 |
| WEN |
|
|
|
|
|
|
|
|
|
| |
27 |
|
|
|
|
| DGND |
28 |
|
|
|
|
|
|
29 |
|
|
|
|
|
|
30 |
|
|
|
|
|
|
31 |
|
|
|
|
|
|
33 R22 | 33 | CISCLK |
|
|
|
|
|
|
|
|
|
| |
34 |
|
|
|
|
|
|
35
36
BLED
38
RLED
39
GLED
40
H:\PROJECT\ORCADWIN\9827\9827REFB.DSN |
| |
|
|
|
Title | XRD9827 REFERENCE BOARD |
|
|
| |
|
|
|
Size | Document Number | Rev |
B |
| B |
DGND
19
| XRD9827REF |
|
|
|
|
Date: | Thursday, July 23, 1998 | Sheet | 2 | of | 3 |