Linear Technology DC2430A Guida rapida alla configurazione

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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dc2430af

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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dc2430af

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

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

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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dc2430af

DEMO MANUAL DC2430A

SELECT

CAL BIT

Figure 4. LTC6951 Settings

Figure 5. LTC6954-2 Settings

QUICK START PROCEDURE

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dc2430af

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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dc2430af

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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dc2430af

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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dc2430af

DEMO MANUAL DC2430A

SCHEMATIC DIAGRAM

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

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

AUX

SDA

SCL

DA1

DA2

DA0

DA1

DA2

DA1

DA0

DA2

DA1

DA0

DA2

DA0

SDA

SCL

CSB

SDI

SDO

SCLK

AUX

SDO

DA1

DA0

DA2

7V VCCIOIN

EEVCCIN

VCCIO

VCCIOVCCIOINEEVCCIN EEVCC

7V VCCIOIN

EEVCCIN

EEVCC

VCCIO

EEVCC

VCCIO EEVCC

EEVCC

EEVCC EEVCC

EEVCC

VCCIO

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: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 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

DEMO CIRCUIT 2430A

Friday, June 03, 2016

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: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 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

DEMO CIRCUIT 2430A

Friday, June 03, 2016

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: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 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

DEMO CIRCUIT 2430A

Friday, June 03, 2016

LINDUINO SPI 1:8 EXPANDER SHIELD

N/A

KIM T.

CHRIS P.

CD74AC238M96

GND

G2A

G2B

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

R117

21.5k

NL17SZ74USG

CLR

6PR 7

VCC 8

GND

J16

ARDUINO, A000086

R88

21.5k

J21

SMA

SYNC1

J18

ARDUINO, A000085

R86

OPT

RED

ROTARY SWITCH CONTROL

NL17SZ74USG

CLR

6PR 7

VCC 8

GND

R89

619

R101

21.5k

R106

R83

21.5k

R82

21.5k

U10

CBT3251DS

GND

S2 9

S1 10

S0 11

B8 12

B7 13

B6 14

B5 15

VCC 16

R110

100

R109

4.99k

CD74AC138M96

GND

G2A

G2B

Y6 9

Y5 10

Y4 11

Y3 12

Y2 13

Y1 14

Y0 15

VCC 16

R92

10k

0.1uF

R118

OPT

CBT3251DS

GND

S2 9

S1 10

S0 11

B8 12

B7 13

B6 14

B5 15

VCC 16

R113

10k

R97

10k

0.1uF

R107

1uF

R111

10k

CBT3251DS

GND

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

0.1uF

R102

21.5k

R81

21.5k

R116

R103

21.5k

R104

0.1uF

J17

ARDUINO, A000084

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

JP3

HD2X4-079

5 6

7 8

R108

4.99k

0.1uF

R90

10k

SN74LVTH126PW

3Y 8

2OE

GND

3A 9

3OE 10

4Y 11

4A 12

4OE 13

VCC 14

1OE

R115

JP1

EEVCC

HD1X3-079

J22

SMA

SYNC2

JP2

VCCIO

HD1X3-079

VCCIO

NC7WZ125K8X

VCC 8

OE1

GND

OE2 7

Y1 6

A2 5

R87

10k

R112

10k

0.1uF

R100

21.5k

0.1uF

R105

0.1uF

SW1

PT65526

R96

10k

J13

ARDUINO, A000085

CD74AC238M96

GND

G2A

G2B

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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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

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

EEVCC EEVCC EEVCC EEVCC

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: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 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

DEMO CIRCUIT 2430A

Monday, April 18, 2016

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: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 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

DEMO CIRCUIT 2430A

Monday, April 18, 2016

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: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 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

DEMO CIRCUIT 2430A

Monday, April 18, 2016

LINDUINO SPI 1:8 EXPANDER SHIELD

N/A

KIM T.

CHRIS P.

R67

100

R61

619

R16

R64

R22

100

GREEN

2 1

R42

100

GREEN

2 1

R15

R34

R66

R46

R25

R71

R23

100

R77

R74

R24

R58

619

R63

100

R33

100

R47

R76

R18

619

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

R32

100

GREEN

2 1

R62

100

R12

100

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

R78

619

100

R41

R38

619

R28

619

R26

R44

R14

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

R45

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

R65

R52

100

GREEN

2 1

R17

R55

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

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

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

R68

619

R75

R13

100

R54

R35

R27

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

R73

100

GREEN

2 1

GREEN

2 1

R21

R53

100

GREEN

2 1

R72

100

R31

R37

R51

R56

R11

R36

R57

R48

619

GREEN

2 1

R43

100

dc2430af

DEMO MANUAL DC2430A

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ●FAX: (408) 434-0507 ●www.linear.com

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

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