Linear Technology DC1369A Quick setup guide

dc1369af

DEMO MANUAL DC1369A

Description

LTC2262-14/-12, LTC2261-14/-12,

LTC2260-14/-12, LTC2259-14/-12, LTC2258-14/-12, LTC2257-14/-12,

LTC2256-14/-12, 14/12-Bit, 25Msps to 150Msps ADCs

Demonstration circuit 1369A supports a family of

14/12-bit 25Msps to 150Msps ADCs. Each assembly

features one of the following devices: LTC2262-14 or

LTC2262-12, LTC2261-14, LTC2261-12, LTC2260-14,

LTC2260-12, LTC2259-14, LTC2259-12, LTC2258-14,

LTC2258-12, LTC2257-14, LTC2257-12, LTC2256-14,

LTC2256-12, high speed, high dynamic range ADCs.

Demonstration circuit 1369A supports the LTC2261 family

DDR LVDS output mode. This family of ADCs is also sup-

ported by demonstrationcircuit1370A, which iscompatible

with CMOS and DDR CMOS output modes.

performance summary

Several versions of the 1369A demo board supporting the

LTC2261 14/12-bit series of A/D converters are listed in

Table 1. Depending on the required resolution and sample

rate, the DC1369A is supplied with the appropriate ADC.

The circuitry on the analog inputs is optimized for analog

input frequencies from 5MHz to 170MHz. Refer to the

data sheet for proper input networks for different input

frequencies.

Design files for this circuit board are available at

http://www.linear.com/demo

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and PScope

and QuikEval are trademarks of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

(TA= 25°C)

Table 1

PARAMETER CONDITION VALUE

Supply Voltage – DC1369A Depending on sampling rate and the A/D converter

provided, this supply must provide up to 250mA

Optimized for 3.6V

3.5V ↔6.0V Min/Max

Analog Input Range Depending on SENSE Pin Voltage 1VP-P to 2VP-P

Logic Input Voltages Minimum Logic High 1.3V

Maximum Logic Low 0.6V

Logic Output Voltages (Differential) Nominal Logic Levels (100Ω Load, 3.5mA Mode) 350mV/1.25V Common Mode

Minimum Logic Levels (100Ω Load, 3.5mA Mode) 247mV/1.25V Common Mode

Sampling Frequency (Convert Clock Frequency) See Table 1

Convert Clock Level Single-Ended Encode Mode (ENC – Tied to GND) 0V to 3.6V

Convert Clock Level Differential Encode Mode (ENC – Not Tied to GND) 0.2V to 3.6V

Resolution See Table 1

Input Frequency Range See Table 1

SFDR See Applicable Data Sheet

SNR See Applicable Data Sheet

dc1369af

DEMO MANUAL DC1369A

Demonstration circuit 1369A is easy to set up to evaluate

the performance of the LTC2262 family of A/D converters.

Refer to Figure 1 for proper measurementequipment setup

and follow the procedure below:

Setup

If a DC890 QuikEval™ II Data Acquisition and Collection

System was supplied with the DC1369A demonstration

circuit, follow the DC890 Quick Start Guide to install the

required software and for connecting the DC890 to the

DC1369A and to a PC.

DC1369A Demonstration Circuit Board Jumpers

The DC1369A demonstration circuit board should have

the following jumper settings as default positions (as per

Figure 1):

JP2: PAR/SER: Selects Parallel or Serial programming

mode. (Default – Serial)

JP3: Duty Cycle Stabilizer: Enables/Disable Duty Cycle

Stabilizer. (Default – Enable)

JP4: SHDN: Enables and disables the LTC2262

(Default – Enable)

Applying Power and Signals to the DC1369A

Demonstration Circuit

If a DC890 is used to acquire data from the DC1369A,

the DC890 must first be connected to a powered USB

port or provided an external 6V to 9V before applying

3.6V to 6.0V across the pins marked V+and GND on the

DC1369A. DC1369A requires 3.6V for proper operation.

Regulators on the board produce the voltages required for

the ADC. The DC1369A demonstration circuit requires up

to 250mA depending on the sampling rate and the A/D

converter supplied.

The DC890 data collection board is powered by the USB

cable and does not require an external power supply unless

it must be connected to the PC through an unpowered hub,

in which case it must be supplied an external 6V to 9V on

turrets G7(+) and G1(–) or the adjacent 2.1mm power jack.

Analog Input Network

For optimal distortion and noise performance the RC

network on the analog inputs may need to be optimized

for different analog input frequencies. For input frequen-

cies above 170MHz, refer to the LTC2262 data sheet for a

proper input network. Other input networks may be more

appropriate for input frequencies less that 5MHz.

Quick start proceDure

Table 2. DC1369A Variants

DC1369A VARIANTS ADC PART NUMBER RESOLUTION MAXIMUM SAMPLE RATE INPUT FREQUENCY

1369A-A LTC2261-14 14-Bit 125Msps 5MHz to 170MHz

1369A-B LTC2260-14 14-Bit 105Msps 5MHz to 170MHz

1369A-C LTC2259-14 14-Bit 80Msps 5MHz to 170MHz

1369A-D LTC2258-14 14-Bit 65Msps 5MHz to 170MHz

1369A-E LTC2257-14 14-Bit 40Msps 5MHz to 170MHz

1369A-F LTC2256-14 14-Bit 25Msps 5MHz to 170MHz

1369A-G LTC2261-12 12-Bit 125Msps 5MHz to 170MHz

1369A-H LTC2260-12 12-Bit 105Msps 5MHz to 170MHz

1369A-I LTC2259-12 12-Bit 80Msps 5MHz to 170MHz

1369A-J LTC2258-12 12-Bit 65Msps 5MHz to 170MHz

1369A-K LTC2257-12 12-Bit 40Msps 5MHz to 170MHz

1369A-L LTC2256-12 12-Bit 25Msps 5MHz to 170MHz

1369A-M LTC2262-14 14-Bit 150Msps 5MHz to 170MHz

1369A-N LTC2262-12 12-Bit 150Msps 5MHz to 170MHz

dc1369af

DEMO MANUAL DC1369A

Figure 1. DC1369A Setup

Quick start proceDure

DC1369A F01

Analog Input

3.5V to 6V

Single-Ended

Encode Clock

Parallel/Serial

Programming Mode

Duty Cycle Stabilizer

SHDN

Parallel Data Output

to DC890

Jumpers Are Shown in

Default Positions

dc1369af

DEMO MANUAL DC1369A

Quick start proceDure

In almost all cases, filters will be required on both analog

input and encode clock to provide data sheet SNR. In the

case of the DC1369A a bandpass filter used for the clock

should be used prior to the DC1075A.

The filters should be located close to the inputs to avoid

reflections from impedance discontinuities at the driven

end of a long transmission line. Most filters do not present

50Ω outside the passband. In some cases, 3dB to 10dB

pads may be required to obtain low distortion.

If your generator cannot deliver full-scale signals without

distortion, you may benefit from a medium power amplifier

based on a Gallium Arsenide Gain block prior to the final

filter. This is particularly true at higher frequencies where

IC based operational amplifiers may be unable to deliver

the combination of low noise figure and High IP3 point

required. A high order filter can be used prior to this final

amplifier, and a relatively lower Q filter used between the

amplifier and the demo circuit.

Encode Clock

NOTE: Apply an encode clock to the SMA connector on

the DC1369A demonstration circuit board marked J7.

As a default the DC1369A is populated to have a single-

ended input.

For the best noise performance, the encode input must

be driven with a very low jitter, square wave source. The

amplitude should be large, up to 3VP-P or 13dBm. When

using a sinusoidal signal generator a squaring circuit can

be used. Linear Technology also provides demo board

DC1075A that divides a high frequency sine wave by four,

producing a low jitter square wave for best results with

the LTC2262 family.

Using bandpass filters on the clock and the analog input

will improve the noise performance by reducing the

wideband noise power of the signals. In the case of the

DC1369A a bandpass filter used for the clock should be

used prior to the DC1075A. Data sheet FFT plots are taken

with 10 pole LC filters made by TTE (Los Angeles, CA) to

suppress signal generator harmonics, non harmonically

related spursand broadband noise.Low phase noiseAgilent

8644B generators are used with TTE bandpass filters for

both the clock input and the analog input.

Apply the analog input signal of interest to the SMA con-

nectors on the DC1369A demonstration circuit board

marked J5 AIN+. These inputs are capacitive coupled to

Balun transformers ETC1-1-13.

An internally generated conversion clock output is avail-

able on J1 which could be collected via a logic analyzer, or

other data collection system if populated with a SAMTEC

MEC8-150 type connector or collected by the DC890 Qui-

kEval II Data Acquisition Board using PScope™ software.

dc1369af

DEMO MANUAL DC1369A

Quick start proceDure

Manual Configuration settings:

Bits: 14 (or 12 for 12-bit parts)

Alignment: 14

FPGA Ld: DDR LVDS

Channs: 2

Bipolar: Checked

Positive-Edge Clk: Checked

If everything is hooked up properly, powered and a suit-

able convert clock is present, clicking the Collect button

should result in time and frequency plots displayed in

the PScope window. Additional information and help for

PScope is available in the DC890 Quick Start Guide and in

the online help available within the PScope program itself.

Figure 2. ADC Configuration

Software

The DC890 is controlled by the PScope System Software

provided or downloaded from the Linear Technology

website at http://www.linear.com/software/. If a DC890

was provided, follow the DC890 Quick Start Guide and

the instructions below.

To start the data collection software if PScope.exe is in-

stalled (by default) in \Program Files\LTC\PScope\, double

click the PScope Icon or bring up the run window under

the start menu and browse to the PScope directory and

select PScope.

If the DC1369Ademonstration circuitis properly connected

to the DC890, PScope should automatically detect the

DC1369A, and configure itself accordingly. If necessary

the procedure below explains how to manually configure

PScope.

Under the Configure menu, go to “ADC Configuration....”

Check the Config Manually box and use the following

configuration options (see Figure 2):

dc1369af

DEMO MANUAL DC1369A

Quick start proceDure

Serial Programming

PScope has the ability to program the DC1369A board

serially through the DC890. There are several options

available in the LTC2262 family that are only available

through serially programming. PScope allows all of these

features to be tested.

These options are available by first clicking on the Set

Demo Bd Options icon on the PScope toolbar (Figure 3).

This will bring up the menu shown in Figure 4.

Figure 4. Demo Board Configuration Options

Figure 3. PScope Toolbar

This menu allows any of the options available for the

LTC2262 family to be programmed serially. The LTC2262

family has the following options:

Power Control: Selects between normal operation, nap,

and sleep modes

• Normal(Default):EntireADCispowered,andactive

• Nap: ADC core powers down while references stay

active

• Shutdown:TheentireADCispowereddown

Clock Inversion: Selects the polarity of the CLKOUT signal

• Normal(Default):NormalCLKOUTpolarity

• Inverted:CLKOUTpolarityisinverted

Clock Delay: Selects the phase delay of the CLKOUT

signal

• None(Default):NoCLKOUTdelay

• 45deg:CLKOUTdelayedby45degrees

• 90deg:CLKOUTdelayedby90degrees

• 135deg:CLKOUTdelayedby135degrees

Clock Duty Cycle: Enable or Disables Duty Cycle Stabilizer

• StabilizerOff(Default):Dutycyclestabilizerdisabled

• StabilizerOn:Dutycyclestabilizerenabled

Output Current: Selects the LVDS output drive current

• 1.75mA(Default):LVDSoutputdrivercurrent

• 2.1mA:LVDSoutputdrivercurrent

• 2.5mA:LVDSoutputdrivercurrent

• 3.0mA:LVDSoutputdrivercurrent

• 3.5mA:LVDSoutputdrivercurrent

• 4.0mA:LVDSoutputdrivercurrent

• 4.5mA:LVDSoutputdrivercurrent

dc1369af

DEMO MANUAL DC1369A

Quick start proceDure

Internal Termination: Enables LVDS Internal Termination

• Off(Default):Disablesinternaltermination

• On:Enablesinternaltermination

Outputs: Enables Digital Outputs

• Enabled(Default):Enablesdigitaloutputs

• Disabled:Disablesdigitaloutputs

Output Mode: Selects Digital Output Mode

• FullRate:FullrateCMOSoutputmode(Thismodeis

not supported by the DC1369A, please use the DC1370)

• DoubleLVDS(Default):DoubledatarateLVDSoutput

mode

• DoubleCMOS:DoubledatarateCMOSoutputmode

(This mode is not supported by the DC1369A, please

use the DC1370)

Test Pattern: Selects Digital Output Test Patterns

• Off(Default):ADCdatapresentedatoutput

• AllOut=1:Alldigitaloutputsare1

• AllOut=0:Alldigitaloutputsare0

• Checkerboard:OF,andD13-D0Alternatebetween101

0101 1010 0101 and 010 1010 0101 1010 on alternat-

ing samples.

• Alternating:Digitaloutputsalternatebetweenall1’sand

all0’sonalternatingsamples.

Alternate Bit: Alternate Bit Polarity (ABP) Mode

• Off(Default):Disablesalternatebitpolarity

• On:Enablesalternatebitpolarity(BeforeenablingABP,

be sure the part is in offset binary mode)

Randomizer: Enables Data Output Randomizer

• Off(Default):Disablesdataoutputrandomizer

• On:Enablesdataoutputrandomizer

Two’s Complement:EnablesTwo’sComplementMode

• Off(Default):Selectsoffsetbinarymode

• On:Selectstwo’scomplementmode

Once the desired settings are selected hit OK and PScope

will automatically update the register of the device on the

DC1369A demo board.

dc1369af

DEMO MANUAL DC1369A

parts List

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

1 1 C1 RES, 0402 150Ω 1% 1/16W VISHAY CRCW0402150RFKED

2 9 C2, C3, C6, C7, C38, C39, C59-C61 CAP, 0402 0.01uF 10% 16V X7R AVX 0402YC103KAT

3 2 C10, C9 CAP, 0402 8.2pF 5% 50V COG AVX 04025A8R2JAT2A

4 6 C12, C15, C18, C19, C21, C37 CAP, 0402 0.1uF 10% 10V X5R TDK C1005X5R1A104K

5 3 C13, C17, C23 CAP, 0402 1uF 10% 10V X5R TDK C1005X5R1A105K

6 2 C14, C22 CAP, 0603 1uF 10% 16V X7R TDK C1608X7R1C105K

7 1 C20 CAP, 0402 1uF 10% 10V X5R MURATA GRM155R61A105KE15D

8 1 C24 CAP, 0603 4.7uF 20% 6.3V X5R TDK C1608X5R0J475MT

9 12 C26-C36, C56 CAP, 0603 0.1uF 10% 50V X7R TDK C1608X7R1H104K

10 1 C51 CAP, 0402 4.7pF +/-0.25pF 50V NPO AVX 04025A4R7CAT2A

11 2 C53, C52 CAP, 0402 100pf 5% 50V COG TDK C1005C0G1H101J

12 2 C54, C55 CAP, 1206 22uF 10% 6.3V X5R AVX 12066D226KAT2A

13 7 R9, R10, R48, R54, R57, C57, C58 RES, 0402 0Ω JUMPER VISHAY CRCW04020000Z0ED

14 1 D1 DIODE, SCHOTTKY SOT-23 AVAGO HSMS-2822

15 3 JP2, JP3, JP4 HEADER, 3-PIN, 2mm SAMTEC TMM-103-02-L-S

16 3 J5, J7, J9 CONN, BNC, SMA 50Ω EDGE-LANCH E.F.JOHNSON, 142-0701-851

17 1 J8 HEADER, 2×7 2mm MOLEX 87331-1420

18 1 L1 IND, 0603 56uH 5% MURATA LQP18MN56NG02D

19 3 L2, L3, L4 FERRITE BEAD, 1206 MURATA BLM31PG330SN1L

20 1 L5 IND, 0603 BEAD ?

21 1 L6 IND, 0603 OPTION OPTION

22 1 P1 EDGE FINGERS ON PCB PART OF THE PCB

23 2 RN2, RN1 RES ARRAY, 33Ω VISHAY CRA04SS08333R0JTD

24 2 R1, R2 RES, 0402 301Ω 1% 1/16W VISHAY CRCW0402301RFKED

25 3 R4, R5, R56 RES, 0402 OPTION OPTION

26 1 R6 RES, 0402 10kΩ 5% 1/16W VISHAY CRCW040210K0JNED

27 1 R7 RES, 0402 10kΩ 1% 1/16W VISHAY CRCW040210K0FKED

28 1 R8 RES, 0402 6.81kΩ 1% 1/16W YAGEO RC0402FR-076K81L

29 4 R14, R33, R34, R35 RES, 0402 1kΩ 5% 1/16W VISHAY CRCW04021K00JNTDE3

30 1 R16 RES, 0402 100Ω 5% 1/16W VISHAY CRCW0402100RJNED

31 8 R17-R23, R30 RES, 0201 100Ω 5% 1/16W VISHAY CRCW0201100RFNTD

32 1 R24 RES, 0402 100kΩ 5% 1/16W VISHAY CRCW0402100KJNED

33 3 R25, R26, R29 RES, 0603 4.99kΩ 1% 1/16W AAC CR16-4991FM

34 3 R36, R44, R45 RES, 0402 86.6Ω 1% 1/16W VISHAY CRCW040286R6FKED

35 2 R40, R39 RES, 0402 24.9Ω 1% 1/16W VISHAY CRCW040224R9FKED

36 0 R46, R49, R52, R53, R55 RES, 0402 OPTION VISHAY CRCW0402101J ?

37 1 R47 RES, 0402 20Ω 1% 1/16W VISHAY CRCW040220R0FKED

38 1 R50 IND, 36nH COILCRAFT 0402CS-36NXJB

39 0 R51 RES, 0402 301Ω 1% 1/16W OPTION VISHAY CRCW0402301RFKED OPTION

40 5 TP1, TP2, TP3, TP4, TP5 TURRETS MILLMAX 2501-2-00-80-00-00-07-0

41 1 T1 XFMR, 1:1 MACOM MABA-007159-000000

42 1 T2 XFMR, 1:1 CT M/A-C0M MABAES0060/COILCRAFT WBC1-1LB

dc1369af

DEMO MANUAL DC1369A

parts List

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

43 1 T3 XFMR, 1:4 CT COILCRAFT WBC4-1WLB

44 1 U1 IC, EEPROM MICROCHIP TECH. 24LC025-I/ST

45 1 U3 IC, FIN1108 FAIRCHILD FIN1108

46 1 U4 IC, LDO Micropower Regulators LINEAR TECH. LT1763CDE-1.8

47 1 U5 IC, 8-BIT I/0 EXPANDER PHILIPS SEMI PCF8574TS/3

48 1 U6 IC, LDO Micropower Regulators LINEAR TECH. LT1763CDE

49 1 U7 IC, EEPROM MICROCHIP TECH. 24LC32A-I/ST

50 3 XJP2, XJP3, XJP4 SHUNT, 2mm SAMTEC 2SN-BK-G

51 4 STANDOFF, SNAP ON KEYSTONE_8831

See page 2 of the Schematic Diagram for U2.

dc1369af

DEMO MANUAL DC1369A

D D

C C

B B

A A

GND

FAST DAACS BOARD ID CIRCUITRY

OXA0

OX40

OXA2



3.1 Change 05/22/12 Clarence M.

SCL

VCC_IN

SDA

VSS

VCC_IN

PAR/SER

ENABLE

-D8/D9

-D6/D7

+D2/D3

-D2/D3

+D0/D1

+CLK

-CLK

+D12/D13

-D12/D13

+D10/D11

-D10/D11

+D8/D9

+D6/D7

-D0/D0

SDI

SCL

SDA

SCK

SDI

VSS

SCK

SDI

SD0

SCK

SD0

-D4/D5

+D4/D5

SDIPAR/SER

VCC_IN

VSS

SCL

VSS

SDA

SCL

VCC_IN

SCL

SDA

SCL

SDA

VOUT

VDD

OVDD

VOUT

VDD

OVDD

VDD

VOUT

VIN

VDD

VDD VDD

VOUT

VDD

Customer Notice:

Linear Technology has made a best effort to

design a circuit that meets customer-supplied specifications;

however, it remains the customers 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

Applications Engineering for assistance.

This circuit is proprietary to Linear Technology and supplied

for use with Linear Technology parts.

Customer Notice:

Linear Technology has made a best effort to

design a circuit that meets customer-supplied specifications;

however, it remains the customers 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

Applications Engineering for assistance.

This circuit is proprietary to Linear Technology and supplied

for use with Linear Technology parts.

Customer Notice:

Linear Technology has made a best effort to

design a circuit that meets customer-supplied specifications;

however, it remains the customers 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

Applications Engineering for assistance.

This circuit is proprietary to Linear Technology and supplied

for use with Linear Technology parts.

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV

PROTO

308/11/08

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV

PROTO

308/11/08

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV

PROTO

308/11/08

SIZE

SCALE:

CAGE CODE

DWG NO

REV

SHEET OF

FILENAME:

TITLE

CONTRACT NO.

APPROVALS

DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

3.1

DC1369A

05/22/12 05:59:39

SCH, LTC2261CUJ, HIGH SPEED LOW POWER

1369A-3.DSN

NONE

MI 10/31/07

125MSPS ADC FAMILY, LVDS

SIZE

SCALE:

CAGE CODE

DWG NO

REV

SHEET OF

FILENAME:

TITLE

CONTRACT NO.

APPROVALS

DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

3.1

DC1369A

05/22/12 05:59:39

SCH, LTC2261CUJ, HIGH SPEED LOW POWER

1369A-3.DSN

NONE

MI 10/31/07

125MSPS ADC FAMILY, LVDS

SIZE

SCALE:

CAGE CODE

DWG NO

REV

SHEET OF

FILENAME:

TITLE

CONTRACT NO.

APPROVALS

DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

3.1

DC1369A

05/22/12 05:59:39

SCH, LTC2261CUJ, HIGH SPEED LOW POWER

1369A-3.DSN

NONE

MI 10/31/07

125MSPS ADC FAMILY, LVDS

C53

100pF

C53

100pF

R34

U7 24LC32A-I/STU7 24LC32A-I/ST

4SDA 5

SCL 6

WP 7

VCC 8

C15

0.1uF

C15

0.1uF

R40

24.9

R40

24.9

C33

0.1uF

C33

0.1uF

C13

1uF

C13

1uF

C38

0.01uF

C38

0.01uF

L1 56uH

0.01uF

1 2

C60

0.01uF

C60

0.01uF

1 2

C52

100pF

C52

100pF

MABA-007159-000000

C59

0.01uF

C59

0.01uF

1 2

R21

100

R21

100

U1 24LC025-I/STU1 24LC025-I/ST

4SDA 5

SCL 6

WP 7

VCC 8

R24

100K

R24

100K

R16

100

R16

100

R33

C12

0.1uF

C12

0.1uF

C17

1uF

C17

1uF

C27 0.1uFC27 0.1uF

R35

R45 86.6 1%R45 86.6 1%

BEAD

C58



C58



1 2

R4 OPTR4 OPT

R20

100

R20

100

TP5

GND

TP5

GND

R50 36nHR50 36nH

0.01uF

1 2

C24

4.7uF

C24

4.7uF

R25 4.99K

WBC4-1WL

JP3

DUTY CYCLE STAB.

DIS

JP3

DUTY CYCLE STAB.

DIS

C35

0.1uF

C35

0.1uF

301

C36

0.1uF

C36

0.1uF

RN2 33RN2 33

R39

24.9

R39

24.9

D10_11+ 32

AIN+

AIN-

GND

REFH

REFL

PAR/SER

VDD

ENC+

ENC-

SCK

SDI

SDO

D0_1-

D0_1+

D2_3-

D2_3+

D4_5- 21

D4_5+ 22

D6_7- 23

D6_7+ 24

OGND 25

OVDD 26

CLKOUT- 27

CLKOUT+ 28

D8_9- 29

D8_9+ 30

D10_11- 31

D12_13- 33

D12_13+ 34

OF+ 36

OF- 35

VCM 37

VREF 38

SENSE 39

VDD 40

GND

R55 OPTR55 OPT

R44

86.6

R44

86.6

R48 0R48 0

R10 0R10 0

BEAD

TP2

V+

3.5V - 6V

TP2

V+

3.5V - 6V

301

TP4TP4

R23

100

R23

100

ENC-

PCF8574TS/3

P0 10

P1 11

P2 12

P3 14

SDA

P4 16

P5 17

P6 19

P7 20

GND

SCL

INT

VDD 5

8NC

NC 13

NC 18

U6 LT1763CDEU6 LT1763CDE

GND 7

SHDN

SENSE 5

BYP 6

10 OUT 2

11 OUT 3

10K

C30

0.1uF

C30

0.1uF

OPT

1 2

C14

1uF

C14

1uF

R51

OPT

R51

OPT

BEAD

JP2

PAR

SER

PAR/SER

JP2

PAR

SER

PAR/SER

HSMS-2822

1 2

R22

100

R22

100

J8J8

5V 2

SCK/SCL 4

CS 6

GND

EEVCC 10

EEGND 12

NC 14

VUNREG 1

GND

MISO 5

MOSI/SDA 7

EESDA 9

EESCL 11

GND

R56

OPT

R56

OPT

C32

0.1uF

C32

0.1uF

C19

0.1uF

C19

0.1uF

R49

OPT

R49

OPT

R17

100

R17

100

C22

1uF

C22

1uF

C31

0.1uF

C31

0.1uF

R26 4.99K 1%R26 4.99K 1%

R14

R52

OPT

R52

OPT

R54 0R54 0

RN1 33RN1 33

U4 LT1763CDE-1.8U4 LT1763CDE-1.8

GND 7

SHDN

SENSE 5

BYP 6

10 OUT 2

11 OUT 3

C57



C57



1 2

C26

0.1uF

C26

0.1uF

MABAES0060

R8 6.81K 1%R8 6.81K 1%

R36

86.6

R36

86.6

C39

0.01uF

C39

0.01uF

C54

22uF

C54

22uF

TP1

EXT REF

TP1

EXT REF

C51

4.7pF

C51

4.7pF

C56 0.1uFC56 0.1uF

ENC+

C34

0.1uF

C34

0.1uF C21

0.1uF

C21

0.1uF

C61

0.01uF

C61

0.01uF

1 2

C28

0.1uF

C28

0.1uF

R46 OPTR46 OPT

C37

0.1uF

C37

0.1uF

R18

100

R18

100

R47 0R47 0

AIN+

TP3

GND

TP3

GND

C10

8.2pF

C10

8.2pF

C2 0.01uFC2 0.01uF

8.2pF

0.01uF

1 2

C55

22uF

C55

22uF

P1 EDGE-CON-100P1 EDGE-CON-100

100

R30

100

R30

100

JP4

SHDN

DIS

JP4

SHDN

DIS

C18

0.1uF

C18

0.1uF

R53 OPTR53 OPT

C29

0.1uF

C29

0.1uF

R29 4.99K 1%R29 4.99K 1%

L3 BEADL3 BEAD

C20

1uF

C20

1uF

R19

100

R19

100

R7 10K 1%R7 10K 1%

R57

C23

1uF

C23

1uF

R9 0R9 0

FIN1108

OUT6- 32

VE1

VE2

EN12

IN1-

IN1+

IN2+

IN2-

IN3-

IN3+

IN4+

IN4-

VC1 12

IN5-

IN5+

IN6+

IN6-

IN7-

IN7+

IN8+

IN8-

EN34

VE3

VBB

VC2 25

VC3 26

EN56

OUT8- 28

OUT8+ 29

OUT7+ 30

OUT7- 31

OUT6+ 33

OUT5+ 34

VE4

OUT5- 35

VE5

OUT4- 38

OUR4+ 39

OUT3+ 40

OUT3- 41

OUT2- 42

OUT2+ 43

OUT1+ 44

OUT1- 45

EN78

VC5 48

VC4 47

R5 OPTR5 OPT

schematic Diagram

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