Linear Technology DC2430A Quick setup guide

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dc2430af
DEMO MANUAL DC2430A
DESCRIPTION
Linduino SPI 1:8
Expander Shield
L, LT, LTC, LTM, Linear Technology, the Linear logo and Linduino are registered trademarks
and QuikEval and ParalleSync are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
The DC2430A provides ParallelSync™support circuitry
which aligns an asynchronous digital signal to the rising
edge of a reference clock. This circuitry will allow for an
easy demonstration of ParallelSync with Linear Technol-
ogy’s clock generation and distribution products, such
as the LTC6951.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2430A
Figure1. DC2430A Connections
JP3, J20 TO J22
LINEAR TECHNOLOGY ParallelSync
SUPPORT CIRCUITRY
Linduino (DC2026)
MOUNTED TO DC2430
J7, QuikEval
CONNECTOR SITE
J6, QuikEval
CONNECTOR SITE
D8, LED, ROTARY
SWITCH ENABLED
INDICATOR
J5, QuikEval
CONNECTOR SITE
J4 QuikEval
CONNECTOR SITE
J0, QuikEval
CONNECTOR SITE
J1, QuikEval
CONNECTOR SITE
J2, QuikEval
CONNECTOR SITE
J3 QuikEval
CONNECTOR SITE
SW1, ROTARY
SWITCH MANUAL
SITE SELECT MODE
Linduino USB
CONNECTION TO PC
Demonstration circuit 2430A is a Linduino
®
SPI 1:8
Expander Shield. The DC2430A shield routes SPI and
I2C signals from one DC2026 to one of eight selectable
QuikEval™ connector sites. When a DC2430A QuikEval
connector site is selected, an LED will illuminate next to
the active site. The DC2430A shield comes with a mounted
DC2026 as shown Figure 1.
DC2430A site selection can be controlled manually or
through software. By default, Manual Site Select mode
is enabled, which is controlled by the on-board rotary
switch. LED D8 illuminates when Manual Site Select mode
is enabled. For Software Site Select mode, example code
is provided in the LTSketchbook.
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DEMO MANUAL DC2430A
QUICK START PROCEDURE
The DC2430A example is based off of the LTC6951 data
sheet’s ParallelSync Typical Application circuit. This ex-
ample requires a 100MHz reference, one DC2430A (with
DC2026C),twoDC2248AandoneDC1954A-B demoboards.
This example uses three DC2430A QuikEval connector sites
and the DC2430A ParallelSync circuitry.
DC2430A ParallelSync Example: Hardware
Refer to Figures 2 and 3
1. Modify both DC2248As to support an external reference
a. C36 = 0.1μF
b. C35 depopulate
c. Remove JP1 jumper
2. QuikEval Connections
a. DC2430A J7 to DC2248A #1 J14
b. DC2430A J6 to DC2248A #2 J14
c. DC2430A J5 to DC1954A-D J12
3. SMA Connections
a. DC2430A J21 to DC2248A #2 J13
b. DC2430A J22 to DC2248A #1 J13
c. DC1954A-B J1 to DC2248A #2 J12
d. DC1954A-B J2 to 50Ω termination
e. DC1954A-B J3 to DC2248A #1 J12
f. DC1954A-B J4 to 50Ω termination
g. DC2430A J20 to DC1954A-B J6
4. Power Supply Connections
a. DC2026 J5 USB to computer
b. DC2248A #1 J16/J15 to +6V/GND
c. DC2248A #2 J16/J15 to +6V/GND
d. DC1954A-B J11/J10 to +3.3V/GND
5. Reference Connection: Connect a 100MHz reference
to the DC1954A-B J8 connector. As an option Linear
TechnologyprovidestheDC2429A,whichhasa100MHz
reference.
6. Set DC1954 jumpers to the following state
a. OUTSEL0 (JP1): HIGH
b. OUTSEL1 (JP2): HIGH
c. OUTSEL2 (JP3): LOW
7. Sync Connection (Manual Site Select mode), connect
DC2430A JP3 Sync pin to any external 3.3V digital
signal. Set to LOW at start.
DC2430A ParallelSync Example: Manual Mode
To run this ParallelSync example in Software Site Select
mode, refer to DC2430A Features section of this manual.
8. Refer to the LTC6951 and LTC6954 demo manuals to
install their respective software programs.
9. Program LTC6954-2
a. Turn DC2430A SW1 until DC2430A J5 is selected
(D5 will illuminate)
b. Start LTC6954_GUI
c. Select LTC6954 settings shown in Figure 5
10. Program LTC6951 #2
a. Turn DC2430A SW1 until DC2430A J6 is selected
(D6 will illuminate)
b. Start LTC6951Wizard
c. In LTC6951 Wizard, click File →Load Settings.
Select the directory/file "Data Sheet Typical
Applications/6951_ParallelSyncw6954.6951set”.
d. Select CAL bit from the LTC6951 Wizard. The
DC2248A’sredSTATUSLED(D1)shouldilluminate.
A 200MHz signal should be present on the OUT0
outputs. Refer to Figure 4.
11. Program LTC6951 #1
a. Turn DC2430A SW1 until DC2430A J7 is selected
(D7 will illuminate)
b. Repeat step 10C and 10D
12. Perform a ParallelSync operation by taking the
DC2430A JP3 SYNC pin HIGH for >1ms. Return the
DC2430A JP3 SYNC pin to LOW.
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DEMO MANUAL DC2430A
Figure2. ParallelSync Setup, DC2430A
TO DC2248 #1
J14 (LTC6951)
TO DC2248 #2
J14 (LTC6951)
TO DC1954
J12 (LTC6954-2)
Linduino USB
CONNECTION TO PC
TO DC2248 #1 J13 (LTC6951)
TO DC2248 #2 J13 (LTC6951)FROM DC1954 J6 (LTC6954-2)
QUICK START PROCEDURE
J7
J6
J5
DC2430
(PARTIAL)
DC2248 #1
LTC6951
J14
SYNC
REF+
DC2248 #2
LTC6951
J14
SYNC
REF+
DC1954A-B
LTC6954
J12
OUT1+
OUT0+
OUT2–
SYNC2
SYNC1
REFIN
TO DC2248 #2 SYNC
TO DC2248 #1 SYNC
FROM DC2430 SYNC1
FROM DC2430 SYNC2
JP3
100MHz
IN
SYNC
GPIO7
GPIO8
TERMINATE
UNUSED LTC6954
OUTPUTS
QuikEval
RIBBON
CABLE
ParallelSync
CIRCUITRY
QuikEval
RIBBON
CABLE
QuikEval
RIBBON
CABLE
Figure3. ParallelSync Setup, All Demo Boards
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DEMO MANUAL DC2430A
SELECT
CAL BIT
Figure 4. LTC6951 Settings
Figure 5. LTC6954-2 Settings
QUICK START PROCEDURE
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DEMO MANUAL DC2430A
DC2430A FEATURES
QuikEval Site Selection
The user can select the DC2430A QuikEval Site manually
or via software. Only one QuikEval Site can be active at
a time, as shown in Table 1. An LED next to the selected
QuikEval connector will illuminate.
Manual Site Select Mode: The rotary switch (SW1) de-
termines which QuikEval connector (J0:J7) is selected.
Manual Site Select mode is the DC2430A default power
up option.
Software Site Select Mode:A Linduino sketch determines
which QuikEval connector site (J0:J7) is selected. Refer to
the DC2026 demo manual for instructions on downloading
andinstallingthe Arduino Integrated Development Environ-
ment and the LTSketchbook. After installation is complete,
example code for automating the DC2430A ParallelSync
Example above is provided. To locate example code refer
to Figure 6. To run the DC2430A ParallelSync program
refer to Figure 7. For this sketch to operate correctly,
ensure a jumper is installed to connect DC2430A’s SYNC
and GPIO7 pins, refer to Table 2.
ParallelSync Circuitry: Sync to Reference Alignment
The DC2430A provides ParallelSync support circuitry that
creates a sync pulse that meets ParallelSync’s Sync to Ref
timing requirements from an asynchronous digital signal.
Refer to the ParallelSync device’s data sheet for more
details on Reference and Sync signal timing requirements.
Refer to Table 2 for details on the DC2430A’s ParallelSync
Circuitry’s input and output requirements.
Table 1. QuikEval Site Selection
DC2430A MODE
DC2026 DIGITAL PIN STATE DC2430A
D5 D4 D3 D2 QuikEval SITE LED D8
Manual Site Select (Default State) LOW X X X SW1 Setting ON
Software Site Select
HIGH LOW LOW LOW J0
OFF
HIGH LOW LOW HIGH J1
HIGH LOW HIGH LOW J2
HIGH LOW HIGH HIGH J3
HIGH HIGH LOW LOW J4
HIGH HIGH LOW HIGH J5
HIGH HIGH HIGH LOW J6
HIGH HIGH HIGH HIGH J7
Table 2: ParallelSync Support Circuitry Input and Output Signals
PARAMETER INPUT/OUTPUT PHYSICAL LOCATION DETAILS
Reference
Input
Input J20 SMA Connector Connect a copy of the reference input signal that is supplied to the ParallelSync device’s PLL/
VCO reference input to J20.
SYNC1 Output J21 SMA Connector A CMOS sync pulse that has been time aligned to J20’s reference input signal. Connect one of
these signals to the SYNC pin of each ParallelSync device. Sync pulse signal levels are based on
the VCCIO voltage selected by DC2026 JP3 setting. The Default DC2026 VCCIO voltage is 3.3V.
SYNC2 Output J22 SMA Connector
SYNC Input JP3 – Pin 7 (SYNC) Asynchronous ParallelSync pulse input. Input sync pulse signal requirements are based on
the VCCIO voltage selected by DC2026 JP3 setting. The default VCCIO voltage is 3.3V. The
DC2430A JP3 SYNC input accepts LVTTL and LVCMOS signal levels.
The SYNC signal can be generated from:
1. an external instrument tied to the DC2430A JP3 SYNC, or
2. the DC2026 digital pin 7, by shorting DC2430A JP3’s SYNC to GPIO7
(default jumper location)
GPIO7 Output JP3 – Pin 5 (GPIO7) Controlled by the DC2026’s digital pin 7. GPIO7’s signal level has been level adjusted and can be
connected directly to DC2430A JP3’s SYNC pin. By default GPIO7 is programmed to a low state.
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DEMO MANUAL DC2430A
Figure6. Locating ParallelSync Example Code
Figure6. ParallelSync Example – Software Mode Site Select
DC2430A FEATURES
1. COMPILE AND LOAD
NOT REQUIRED UNLESS
DEFAULT SKETCH OVER
WRITTEN
3. TYPE “B” <ENTER>
2. OPEN SERIAL MONITOR
4. ParallelSync DONE!
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DEMO MANUAL DC2430A
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
1 10 C1-C10 CAP., 0.1μF, X7R, 25V,10%, 0402 MURATA, GRM155R71E104KE14D
2 8 D0-D7 LED, GREEN, LED-ROHM-SML-01 ROHM, SML-012P8TT86
3 1 D8 LED, RED, LED-ROHM-SML-01 ROHM, SML-012V8TT86
4 2 JP1, JP2 CONN., HEADER, MALE, 1×3, 2mm, THT WURTH ELEKTRONIK, 62000311121
5 1 JP3 CONN., HEADER, MALE, 2×4, 2mm, THT WURTH ELEKTRONIK, 62000821121
6 9 J0-J7, J10 CONN., HEADER, 14-PIN, 2mm MOLEX, 87831-1420
7 1 J11 CONN., SOCKET ELEVATED, 14-PIN, 2mm, THT SAMTEC, ESQT-107-02-F-D-518
8 2 J13, J18 CONN., 0.100, 8 POSITION ARDUINO, A000085
9 1 J16 CONN., 0.100, 10 POSITION ARDUINO, A000086
10 1 J17 CONN., 0.100, 6 POSITION ARDUINO, A000084
11 3 J20, J21, J22 CONN., SMA 50Ω, EDGE-LAUNCH EF JOHNSON, 142-0701-851
12 45 R1, R4-R7, R11, R14-R17, R21, R24-R27,
R31, R34-R37, R41, R44-R47, R51,
R54-R57, R61, R64-R67, R71, R74-R77,
R104-R106, R115, R116
RES., 0Ω, 1%, 1/16W, 0402 VISHAY, CRCW04020000Z0ED
13 17 R2, R3, R12, R13, R22, R23, R32, R33, R4,
R43, R52, R53, R62, R63, R72, R73, R110
RES., 100Ω, 1%, 1/16W, 0402 VISHAY, CRCW0402100RFKED
14 9 R8, R18, R28, R38, R48, R58, R68, R78, R89 RES., 619Ω, 1%, 1/16W, 0402 VISHAY, CRCW0402619RFKED
15 11 R80-R83, R85, R88, R100-R103, R117 RES., 21.5k, 1%, 1/16W, 0402 VISHAY, CRCW040221K5FKED
16 0 R84, R86, R114, R118 RES., 0402 OPT
17 12 R87, R90-R97, R111-R113 RES., 10k, 1%, 1/16W, 0402 VISHAY, CRCW040210K0FKED
18 1 R107 CAP., 1μF, X7R, 6.3V,10%, 0402 MURATA, GRM155R70J105KA2D
19 2 R108, R109 RES., 4.99k, 1%, 1/16W, 0402 VISHAY, CRCW04024K99FKED
20 1 SW1 SWITCH, ROTARY DIP, CODE 26, OCTAL APEM, PT65526
21 1 FOR SW1 (SEGMENT WHEEL) SWITCH, OPERATING ELEMENT, SNAP-FIT APEM, SRPT659544/BLK
22 1 U1 IC, DECODERS/DEMULTIPLEXERS, SO16 TEXAS INST., CD74AC138M96
23 3 U2, U5, U10 IC, FET DECODERS/DEMULTIPLEXERS,
SSOP16
NXP, CBT3251DS,118
24 2 U3, U4 IC, DECODERS/DEMULTIPLEXERS, SO16 TEXAS INST., CD74AC238M96
25 1 U6 IC, BUS BUFFER, TSSOP14 TEXAS INST., SN74LVTH126PW
26 1 U7 IC, DUAL BUFFER, US8 FAIRCHILD SEMI., NC7WZ125K8X
27 2 U8, U9 IC, SINGLE D FLIP FLOP, US8 ON SEMI., NL17SZ74USG
28 3 SHUNTS FOR JP1-JP3 AS SHOWN ON
ASSY DWG.
SHUNT, 2mm WURTH ELEKTRONIK, 60800213421
29 4 MH1-MH4 STANDOFF, NYLON, SNAP-ON, 1 WURTH ELEKTRONIK, 702939000
30 2 STENCILS (TOP & BOTTOM) STENCIL DC2430A-2
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DEMO MANUAL DC2430A
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D D C C B B A A
NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE IN OHMS, 0402 2. ALL CAPACITORS ARE IN MICROFARADS, 0402.
DC2026/DC590 INPUT
ROTARY SWITCH
CS FANOUT CONTROLS LEDS D0 - D7 GPIO FANOUT
EESDA FANOUT EESCLK FANOUT
J11 MOUNTED ON THE BOTTOM SIDE AND PLUGGED ON J1 OF DC2026
GPIO6
FOR EXTERNAL SUPPLIES, MOVE SHUNTS ON JP1 AND JP2 TO PINS 2&3 (NC) IF EXTRA CURRENT REQUIRED
GPIO7 GPIO7 SYNC
THE EEVCC CONNECTION TO THE LINDUINO ANALOG PINS CAN VERIFY IF LINDUINO IS BEING USED AS A SHIELD OR IF IT IS CABLED IN. THE VCCIO CONNECTION CAN BE USED TO VERIFY IF THE CORRECT VCCIO VOLTAGE IS SELECTED.
TO LINDUINO CONNECTORS
(J6) (J3) (J8) (J7)
SDO FANOUT
CSB AUX
CSB
DA0 DA1 DA2A2
A1 A0 AUX
SDA SCL
SCL
DA1
DA2
A0 DA0 A1 DA1 A2 DA2
A2 A1 A0
DA1 DA0 DA2 DA1 DA0 DA2
DA0
SDA
SDA SCL CSB SDI SDO SCLK AUX
SDO
DA1 DA0 DA2
7V VCCIOIN
EEVCCIN
VCCIO
VCCIO
VCCIO
VCCIOVCCIOINEEVCCIN EEVCC
7V VCCIOIN
EEVCCIN
EEVCC
VCCIO
EEVCC EEVCC
VCCIO EEVCC
EEVCC
EEVCC
EEVCC EEVCC
EEVCC
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
EEVCC
EEVCC
SCLK SDI SDO
J7_CS J0_CS J1_CS J2_CS J3_CS J4_CS J5_CS J6_CS
D0_SIG D1_SIG D2_SIG D3_SIG D4_SIG D5_SIG D6_SIG D7_SIG
J0_AUX J1_AUX J2_AUX J3_AUX J4_AUX J5_AUX J6_AUX J7_AUX
J4_EESDA J5_EESDA J6_EESDA J7_EESDA
J3_EESDA J2_EESDA J1_EESDA J0_EESDA
J4_EESCL J5_EESCL J6_EESCL J7_EESCL
J3_EESCL J2_EESCL J1_EESCL J0_EESCL
J4_SDO J5_SDO J6_SDO J7_SDO
J3_SDO J2_SDO J1_SDO J0_SDO
REVISION HISTORY DESCRIPTION DATEAPPROVEDECO REV
CHRIS P.PRODUCTION
__ 2 06-03-16
REVISION HISTORY DESCRIPTION DATEAPPROVEDECO REV
CHRIS P.PRODUCTION
__ 2 06-03-16
REVISION HISTORY DESCRIPTION DATEAPPROVEDECO REV
CHRIS P.PRODUCTION
__ 2 06-03-16
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] McCarthy Blvd. LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL 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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
DEMO CIRCUIT 2430A
Friday, June 03, 2016
12
LINDUINO SPI 1:8 EXPANDER SHIELD
N/A
KIM T.
CHRIS P.
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] McCarthy Blvd. LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL 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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
DEMO CIRCUIT 2430A
Friday, June 03, 2016
12
LINDUINO SPI 1:8 EXPANDER SHIELD
N/A
KIM T.
CHRIS P.
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] McCarthy Blvd. LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL 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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
DEMO CIRCUIT 2430A
Friday, June 03, 2016
12
LINDUINO SPI 1:8 EXPANDER SHIELD
N/A
KIM T.
CHRIS P.
U3
CD74AC238M96
GND
8
A
1
B
2
C
3
G2A
4
Y7
7
G1
6
G2B
5
Y6 9 Y5 10 Y4 11 Y3 12 Y2 13 Y1 14 Y0 15
VCC 16
J10
HD2X7-079-MOLEX
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
R117 21.5k
U9 NL17SZ74USG
CP
1
CLR
6PR 7
D
2
Q3 Q5
VCC 8 GND
4
J16
ARDUINO, A000086
1 2 3 4 5 6 7 8 9
10
R88 21.5k
J21
SMA
SYNC1
J18
ARDUINO, A000085
1 2 3 4 5 6 7 8
R86 OPT
D8
RED
ROTARY SWITCH CONTROL
21
U8 NL17SZ74USG
CP
1
CLR
6PR 7
D
2
Q3 Q5
VCC 8 GND
4
R89 619
R101 21.5k
R106
0
R83 21.5k
R82 21.5k
U10
CBT3251DS
GND
8
B4
1
B3
2
B2
3
B1
4
OE
7
NC
6
A
5
S2 9 S1 10 S0 11
B8 12 B7 13 B6 14 B5 15
VCC 16
R110
100
R109 4.99k
U1
CD74AC138M96
GND
8
A
1
B
2
C
3
G2A
4
Y7
7
G1
6
G2B
5
Y6 9 Y5 10 Y4 11 Y3 12 Y2 13 Y1 14 Y0 15
VCC 16
R92 10k
C1 0.1uF
R118 OPT
U2
CBT3251DS
GND
8
B4
1
B3
2
B2
3
B1
4
OE
7
NC
6
A
5
S2 9 S1 10 S0 11
B8 12 B7 13 B6 14 B5 15
VCC 16
R113 10k
R97 10k
C4
0.1uF
R107
1uF
R111 10k
U5
CBT3251DS
GND
8
B4
1
B3
2
B2
3
B1
4
OE
7
NC
6
A
5
S2 9 S1 10 S0 11
B8 12 B7 13 B6 14 B5 15
VCC 16
R94 10k
R80 21.5k
R114 OPT
J20
SMA
REFIN
R95 10k
C6 0.1uF
C5 0.1uF
R102 21.5k
R81 21.5k
R116
0
R103 21.5k
R104 0
C9 0.1uF
J17
ARDUINO, A000084
1 2 3 4 5 6
J11
SOCKET, ESQT-107-02-F-D-518
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
JP3
HD2X4-079
1 3 5 6
4 2
7 8
R108 4.99k
C3 0.1uF
R90 10k
U6
SN74LVTH126PW
3Y 8
1A
2
1Y
3
2OE
4
GND
7
2Y
6
2A
5
3A 9
3OE 10
4Y 11
4A 12
4OE 13
VCC 14
1OE
1
R115
0
JP1
EEVCC
HD1X3-079
5V
NC
1 3 2
J22
SMA
SYNC2
JP2
VCCIO
HD1X3-079
VCCIO
NC
1 3 2
U7
NC7WZ125K8X
VCC 8
OE1
1
A1
2
Y2
3
GND
4
OE2 7
Y1 6
A2 5
R87 10k
R112 10k
C8 0.1uF
R100 21.5k
C7 0.1uF
R105
0
C2 0.1uF
SW1
PT65526
1 4 C
2
NC
C
R96 10k
J13
ARDUINO, A000085
1 2 3 4 5 6 7 8
U4
CD74AC238M96
GND
8
A
1
B
2
C
3
G2A
4
Y7
7
G1
6
G2B
5
Y6 9 Y5 10 Y4 11 Y3 12 Y2 13 Y1 14 Y0 15
VCC 16
C10 0.1uF
R85 21.5k
R84 OPT
R93 10k
R91 10k
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9
dc2430af
DEMO MANUAL DC2430A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SCHEMATIC DIAGRAM
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
DC2026/DC590 INTERFACE FAN OUT
SCLK
SDI
SCLK
SDI
SCLK
SDI
SCLK
SDI
SCLK
SDI
SCLK
SDI
SCLK
SDI
VCCIO7V VCCIO7V VCCIO7V VCCIO7V
VCCIO7VVCCIO7V
VCCIO7VVCCIO7V
EEVCC EEVCC EEVCC EEVCC
EEVCCEEVCC
EEVCCEEVCC
J0_CS SCLK SDI J0_SDO
D0_SIG
J0_EESDA J0_EESCL J0_AUX
J1_EESCL J1_AUX J1_EESDA
D1_SIG
J1_CS
J2_AUX
D2_SIG
J2_CS J2_EESCL J2_EESDA J3_EESDA
J3_CS J3_EESCL J3_AUX
D3_SIG
J5_AUX
J4_EESCL
D5_SIG
J4_AUX J7_AUX J4_EESDA
J5_CS J5_EESCL J7_EESCL
D4_SIG
J5_EESDA
J7_CS
J6_EESDA J6_CS J6_EESCL
D7_SIG
J4_CS
J6_AUX
J7_EESDA
D6_SIG
J1_SDO J2_SDO J3_SDO
J4_SDO J5_SDO J6_SDO J7_SDO
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] McCarthy Blvd. LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL 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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
DEMO CIRCUIT 2430A
Monday, April 18, 2016
22
LINDUINO SPI 1:8 EXPANDER SHIELD
N/A
KIM T.
CHRIS P.
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] McCarthy Blvd. LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL 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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
DEMO CIRCUIT 2430A
Monday, April 18, 2016
22
LINDUINO SPI 1:8 EXPANDER SHIELD
N/A
KIM T.
CHRIS P.
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] McCarthy Blvd. LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL 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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
DEMO CIRCUIT 2430A
Monday, April 18, 2016
22
LINDUINO SPI 1:8 EXPANDER SHIELD
N/A
KIM T.
CHRIS P.
R67 0
R2 100
R61 0
R8
619
R16 0
R64 0 R22 100
D7
GREEN
2 1
R42 100
D3
GREEN
2 1
R15 0
R34 0
R66 0
R46 0 R4 0
R25 0
R71 0
R23 100
R77 0
R74
0
R24 0
R58
619
R63 100
R33 100
R47 0
R76 0
R18
619
J7
HD2X7-079-MOLEX
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
R32 100
D4
GREEN
2 1
R62 100
R12 100
J0
HD2X7-079-MOLEX
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
R78
619
R7 0 R3 100 R41 0
R38
619
R28
619
R26 0
R6 0 R44 0
R14 0
J3
HD2X7-079-MOLEX
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
R45 0
J6
HD2X7-079-MOLEX
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
R65 0
R52 100
D5
GREEN
2 1
R17 0 R55 0
J2
HD2X7-079-MOLEX
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
J5
HD2X7-079-MOLEX
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
J4
HD2X7-079-MOLEX
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
R68
619
R75 0
R13 100 R54 0
R35 0
R27 0
J1
HD2X7-079-MOLEX
MOSI/SDA 7
EESDA 9
V+ 1
5V 2
CS 6
SCK/SCL 4
EEVCC 10
MISO 5
EESCL 11
EEGND 12
AUX 14
GND
3
GND
13
GND
8
R73 100
D1
GREEN
2 1
D0
GREEN
2 1
R21 0
R53 100
R1 0
D6
GREEN
2 1
R72 100 R31 0 R37 0
R5 0
R51 0 R56 0 R11 0
R36 0
R57 0
R48
619
D2
GREEN
2 1
R43 100
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10
dc2430af
DEMO MANUAL DC2430A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ●FAX: [phone] ●www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2016
LT 0816 • PRINTED IN USA
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:
This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT
OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety
measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union
directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date
of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or
agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and
observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application
engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
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