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dc1765af

DEMO MANUAL DC1765A

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

NOTE: UNLESS OTHERWISE SPECIFIED

1.  ALL RESISTORS AND CAPACITORS ARE 0603.

GND

ASSY

LTC6957HMS-1

U1

-A

LTC6957HMS-2

-B

H

L

H

L

H

L

H

L

R1-R4

130 OHM

OPT

Z1-Z4

0.01uF

0 OHM

3.15V - 3.45V

*

V+

*

R20-R21

OPT

100 OHM

LVPECL

LVDS

OUT1+

OUT1-

OUT2-

OUT2+

V+

V+

V+

V+

V+

V+

V+

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

MICHEL A.

PRODUCTION

3

08-16-12

__

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

MICHEL A.

PRODUCTION

3

08-16-12

__

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

MICHEL A.

PRODUCTION

3

08-16-12

__

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

3

08/16/2012, 06:45 PM

11

LOW PHASE NOISE, DUAL LVPECL OR LVDS OUTPUT

KIM T.

MICHEL A.

N/A

LTC6957HMS-1 / -2 DEMO CIRCUIT 1765A

BUFFER / DRIVER / LOGIC CONVERTER

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

3

08/16/2012, 06:45 PM

11

LOW PHASE NOISE, DUAL LVPECL OR LVDS OUTPUT

KIM T.

MICHEL A.

N/A

LTC6957HMS-1 / -2 DEMO CIRCUIT 1765A

BUFFER / DRIVER / LOGIC CONVERTER

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

3

08/16/2012, 06:45 PM

11

LOW PHASE NOISE, DUAL LVPECL OR LVDS OUTPUT

KIM T.

MICHEL A.

N/A

LTC6957HMS-1 / -2 DEMO CIRCUIT 1765A

BUFFER / DRIVER / LOGIC CONVERTER

J4

SMA-R

OUT1-

J4

SMA-R

OUT1-

JP3

SD1

JP3

SD1

1

3 2

J1

SMA-R

IN+

J1

SMA-R

IN+

R1

*

R1

*

U1U1

GND

5

IN-

4

IN+

3

V+

2

FILTA

1

OUT1-

10

OUT2-

9

OUT2+

8

SD2

7

FILTB

6

OUT1+

11

SD1

12

R4

*

R4

*

JP1

FILTA

JP1

FILTA

1

3 2

R2

*

R2

*

R20

*

R20

*

Z1

*

Z1

*

R6 OPT

R6 OPT

C13 0.1uF

C13 0.1uF

C14 1uF

C14 1uF

C8

0.01uF

C8

0.01uF

+

C16 22uF

3528

10V

+

C16 22uF

3528

10V

R15 49.9

R15 49.9

R14 OPT

R14 OPT

E2E2

R3

*

R3

*

J3

SMA-R

OUT1+

J3

SMA-R

OUT1+

R11 OPT

R11 OPT

R19 330k

R19 330k

R7 49.9

R7 49.9

C6

0.01uF

C6

0.01uF

JP2

FILTB

JP2

FILTB

1

3 2

R18 330k

R18 330k

R17 330k

R17 330k

E1E1

R21

*

R21

*

Z2

*

Z2

*

J2

SMA-R

IN-

J2

SMA-R

IN-

Z3

*

Z3

*

J6

SMA-R

OUT2+

J6

SMA-R

OUT2+

JP4

SD2

JP4

SD2

1

3 2

J5

SMA-R

OUT2-

J5

SMA-R

OUT2-

R16 330k

R16 330k

Z4

*

Z4

*

Содержание DC1765A

Страница 1: ...rive 50Ω input impedance instruments The LVDS outputs of the DC1765A B are terminated with 100Ω differential and are DC coupled The DC1765A allows the user to take advantage of the shutdown and bandwidth selection features of the LTC6957 The DC1765A can operate with a single ended or differential sine wave or square wave input signal Supply the DC1765A with 3 3V and it is ready to function The DC1...

Страница 2: ...of the LTC6957 4 Configure the input bandwidth of the LTC6957 with the use of FILTA JP1 and FILTB JP2 jumpers Follow the instructions given in the LTC6957 data sheet to choose the correct bandwidth given an input signal 5 ShutdownanunusedoutputbyusingjumperSD1 JP3 to shutdown OUT1 or jumper SD2 JP4 to shutdown OUT2 DC1765A Reconfiguration The DC1765A is flexible and allows the connectivity of a va...

Страница 3: ...e 1 DC1765A Assembly Options ASSEMBLY VERSION PART NUMBER OUTPUT TYPE DC1765A A LTC6957HMS 1 LVPECL DC1765A B LTC6957HMS 2 LVDS Layout Top Layer The top metal layer of the DC1765A is shown here as an example of good PCB layout for the LTC6957 1 LTC6957 2 ...

Страница 4: ... R6 R11 R14 RES OPT 0603 OPT 9 2 R7 R15 RES CHIP 49 9Ω 1 0603 VISHAY CRCW060349R9FKEA 10 4 R16 R17 R18 R19 RES CHIP 330k 1 0603 VISHAY CRCW0603330KFKEA 11 4 SHUNTS FOR JP1 JP4 SHUNT 079 CENTER SAMTEC 2SN BK G 12 4 STAND OFF NYLON 0 500 KEYSTONE 8833 SNAP ON DC1765A A 1 1 DC1765A GENERAL BOM DC1765A 2 4 Z1 Z2 Z3 Z4 CAP X7R 0 01µF 50V 0603 NIC NMC0603X7R103K50TRP 3 4 R1 R2 R3 R4 RES CHIP 130Ω 0603 V...

Страница 5: ...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 TECH...

Страница 6: ...UDING 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 goo...

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