DC2197A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
__
1
DESCRIPTION
APPROVED
DATE
1ST PROTOTYPE
MARK T.
02-07-14
VCC
VCC
EXT
VCC
REFSEL
1
2
3
EXT
INT
JP1
IDLSEL
HI-Z#/HOLD
ZS#/FS
JP2
VCC
C2
0.1uF
1
2
3
JP3
E8
IDLSEL
4
REFSEL
13
7
IOVCC
INC
IND
GND
PD
REF
12
IOVCC
C3
0.1uF
E9
INA
6
E10
INB
5
E11
INC
11
E12
IND
10
E13
NPD
9
INA
VOUTA
INB
VOUTB
INC
VOUTC
IND
VOUTD
PD
E15
PD
ON
PD
VCC
1
2
3
VCC
E16
*
E1
REF
C1
10uF
6.3V
0805
8
C
U1
LTC2645
E6
2
VOUTA
E2
3
VOUTB
E3
14
VOUTC
E4
15
VOUTD
E5
E7
GND
INA
INB
E14
REFSEL
GND
GND
IDLSEL
D
VCC
REF
GND
VOUTA
VOUTB
VOUTC
VOUTD
GND
C
16
IOVCC
VCC
1
2
3
1
IOVCC
VCC
D
R1
10k
JP4
LINDUINO HEADERS
VIN
AD0
AD1
AD2
AD3
SDA
SCL
1
2
3
4
5
6
1
2
3
4
5
6
POWER
HD1X6-100
ADO
HD1X6-100
R9
49.9
R10
49.9
R11
49.9
DACS C AND D CONNECTED TO 8-BIT
CAPABLE PWM LINDUINO OUTPUTS
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS AND CAPACITORS ARE 0603.
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
3
U1
LTC2645-L12
ASSY TYPE
A
*
A
5
B
DACS A AND B CONNECTED TO 16-BIT
CAPABLE PWM LINDUINO OUTPUTS
IO5
IO6
TEST PADS ALLOW REMAPPING
LINDUINO CONNECTIONS
TPC
INC
INB
8
7
6
5
4
3
2
1
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
R8
49.9
R7
49.9
VCC
RESET
+3V3
R2
OPT
TPD
IO2
IO10
8
7
6
5
4
3
2
1
IO13
IO12
IO11
IO10
IO9
IO8
AREF
VCC
TPA
IND
TPB
IOL1
HD1X8-100
INA
IOH1
HD1X8-100
IO9
B
TECHNOLOGY
KIM T.
MARK T.
SUFFIX
12
-BIT
12
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
QUAD 12/10/8-BIT PWM TO VOUT DACS
SIZE
N/A
SCALE = NONE
2
DATE:
IC NO.
LTC2645CMS FAMILY
REV.
1
DEMO CIRCUIT 2197A
02/07/2014, 11:20 AM
SHEET 1
1
OF 1
A
Similar pages