DC465A - Schematic

4
3
3
SW1
1
2
2
1
R1
47K
3
D
DVCC
U1
RST
VCC3
VCCA
VCC18
LTC1728ES5-1.8
20
21
21
13
12
1
DVCC
VBATT
1
VBATT
C4A
PD1(TXD)
(MISO)PD2
20
(SCK)PD4
19
RX2IN
DR3IN
RX3IN
RX5OUT
18
RX4IN
DREN
17
DR3OUT
RXEN
16
GND
15
(SS)PD5
(2MHz)E
PB1
PB0
3
VRL
VSS
1
51
B
8
27
22
2
7
28
24
3
6
26
25
4
5
25
5
1
8
31
41
2
7
32
42
3
6
30
34
(IC3)PA0
LTC1348CG
1
4
9
PC0
5
5
4
3
R12
12.4K, 1%
DOUT
V+ 1
OUT
DIV
SET
GND
C16
0.1UF
7
VCCA
8
C9
1UF
6.3V
C8
RSTB
ASYNC
SYNC
CLKB
RIN
VCCB
DATA
C14
1UF
6.3V
C4
C7
C2
J2
AMPHENOL
C702-10M008-121-4
C3
C1
C5
C
S1
S2
C4
18
C7
17
C2
PRESB 21
GND 33
C12
1UF
6.3V
C15
4.7UF
6.3V
0805
C13
0.1UF
C8
C4
C7
C2
C3
C3
C1
C1
C5
J3
AMPHENOL
C702-10M008-121-4
B
C5
S1 S1
S2 S2
2
APPROVALS
DRAWN:
1. ALL RESISTORS ARE IN OHMS, 0603.
TECHNOLOGY
KIM T.
CHECKED:
TITLE:
APPROVED:
1. ALL CAPACITORS ARE IN MICROFAR ADS, 0603.
ENGINEER: STEVE M.
2. INSTALL SHUNT ON JP1 PIN 2 AND 3, JP2 PIN 1 A ND 2.
DESIGNER:
SIZE
A
DATE:
4
S1
S2
CONTRACT NO.
5
C5
C8
LTC1799CS5
NOTES: UNLESS OTHERWISE SPECIFIED
A
C10
0.1UF
I/OB 20
19
LD
29
DVCC
VBATT
2.7V TO 5.5V
PRESA 2
SCLK
RN2
10
U5
DVCC
DIN
CLKA
GND
PD0(RXD) (MOSI)PD3
23
C1
4
I/OA 5
RSTA 6
24
RN1
10
C3
3
GND
DR1OUT RX2OUT
22
23
2
XIRQ 18
IRQ 19
52
VRH
VDD
2
23
RX5IN
26
2
DR2IN
C2
10
14
RX1OUT
C1-
C7
C8A
U4
LTC1955EUH
NC//NO
13
C1
4.7UF
6.3V
9
. 5
FAULT
CPO
12
24
22
11
FAULT
C
10
. 4
. 9
25
C1+
RX3OUT
E3
C4
U3
MC68HC711E9N
DR1IN
DR2OUT RX4OUT
17
GND
D
VBATT
C8
LED1
LN1261CAL
FAULT
RST
C11 0.1UF
VCC
RX1IN
R3
240K
15
9
E2
EXT.
VBATT
C4
0.1UF
C-
8
VBATT=
DVCC
DVCC
3V TO 5.5V
0805
14
7
R9
1K
11
6
C3-
26
R8
47K
XTAL
R11
0
5
C2-
27
EXTAL
RD
. 2
7
.
TD
. 3
. 8
R10
0
4
C3+
R7
47K
8
. 1
. 6
0.1UF
C7
C2+
28
7
J1
3
V-
R6
100
MODA
C
C6
0.1UF
V+
JP2
PRGM
MODB
2
C8
0.1UF
C2
0.1UF
R5
47K
1
1
4
R2
180K
C3
0.1UF
C5
0.1UF
JP1
5V VBATT
1
3
GND
DVCC
U2
E1
5
2
E4
VPP
R4
47K
1
DVCC
RESET
4
2
UNDERV
5
3
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use OnlyA
DUAL SMART CARD INTERFACE
DWG NO.
DC465A-1 * LT C1955EUH
Tuesday, June 11, 2002
SHEET
1
REV
A
1 OF 1
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