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OTTAWA

232 Herzberg Road, Suite 101

 

Kanata, Ontario K2K 2A1

 

Canada

Phone: +1 (613) 270-0458

Fax: +1 (613) 270-0429

CALGARY

3553 - 31st St. N.W., Suite 210 

 

Calgary, Alberta T2L 2K7 

 

Canada 

Phone: +1 (403) 284-2672 

UNITED KINGDOM

North Building, Walden Court 

 

Parsonage Lane, 

 

Bishop’s Stortford Hertfordshire, CM23 5DB

 

United Kingdom

Phone: +44 1279 714170

Fax: +44 1279 714171

INDIA

#208(A), Nirmala Plaza,

 

Airport Road, Forest Park Square

 

Bhubaneswar 751009

 

India

Phone: +91 (674) 653-4815

Fax: +91 (674) 259-5733

SNOWBUSH IP - A DIVISION OF GENNUM

439 University Ave. Suite 1700

 

Toronto, Ontario M5G 1Y8

 

Canada

Phone: +1 (416) 925-5643

Fax: +1 (416) 925-0581

E-mail: [email protected]

Web Site: 

http://www.snowbush.com

MEXICO

288-A Paseo de Maravillas 

 

Jesus Ma., Aguascalientes 

 

Mexico 20900 

Phone: +1 (416) 848-0328 

JAPAN KK

Shinjuku Green Tower Building 27F

 

6-14-1, Nishi Shinjuku 

 

Shinjuku-ku, Tokyo, 160-0023 

 

Japan

Phone: +81 (03) 3349-5501

Fax: +81 (03) 3349-5505

E-mail: [email protected]

Web Site:

 http://www.gennum.co.jp

TAIWAN

6F-4, No.51, Sec.2, Keelung Rd.

 

Sinyi District, Taipei City 11502

 

Taiwan R.O.C.

Phone: (886) 2-8732-8879

Fax: (886) 2-8732-8870

E-mail: [email protected]

GERMANY

Hainbuchenstraße 2 

 

80935 Muenchen (Munich), Germany 

Phone: +49-89-35831696 

Fax: +49-89-35804653 

E-mail: [email protected] 

NORTH AMERICA WESTERN REGION

691 South Milpitas Blvd., Suite #200 

 

Milpitas, CA 95035 

 

United States 

Phone: +1 (408) 934-1301 

Fax: +1 (408) 934-1029 

E-mail: [email protected] 

NORTH AMERICA EASTERN REGION

4281 Harvester Road 

 

Burlington, Ontario L7L 5M4

 

Canada

Phone: +1 (905) 632-2996

Fax: +1 (905) 632-2055

E-mail: [email protected]

KOREA

8F Jinnex Lakeview Bldg.

 

65-2, Bangidong, Songpagu

 

Seoul, Korea 138-828

Phone: +82-2-414-2991

Fax: +82-2-414-2998

E-mail: [email protected]

DOCUMENT IDENTIFICATION

DATA SHEET

The product is in production. Gennum reserves the right to make changes to 
the product at any time without notice to improve reliability, function or 
design, in order to provide the best product possible.

GS1572 A Guide to Designing with the GS1572 
(EB1572)
Reference Design
46282 - 1

November 2009

18 of 18

18

Proprietary & Confidential

Gennum Corporation assumes no liability for any errors or omissions in this document, or for the use of the circuits or devices described herein. The sale of 
the circuit or device described herein does not imply any patent license, and Gennum makes no representation that the circuit or device is free from patent 
infringement.

All other trademarks mentioned are the properties of their respective owners.

GENNUM and the Gennum logo are registered trademarks of Gennum Corporation.

© Copyright 2007 Gennum Corporation.  All rights reserved. 

www.gennum.com

GENNUM CORPORATE HEADQUARTERS

4281 Harvester Road, Burlington, Ontario L7L 5M4 Canada

Phone: +1 (905) 632-2996 

Fax: +1 (905) 632-2055

E-mail: [email protected]

www.gennum.com

CAUTION

ELECTROSTATIC SENSITIVE DEVICES

DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A 
STATIC-FREE WORKSTATION

8. References

GS1572 Data Sheet — Multi-Rate Serializer with Cable Driver and ClockCleaner

TM

Summary of Contents for EB1572

Page 1: ...572 A Guide to Designing with the GS1572 EB1572 Reference Design 1 of 18 Proprietary Confidential GS1572 A Guide to Designing with the GS1572 EB1572 Reference Design 46282 1 November 2009 www gennum c...

Page 2: ...4 2 1 1 Isolation Methods 4 2 2 Serial Digital Outputs 5 2 3 VCO Power 6 3 Evaluation Board User s Guide 7 3 1 Power 7 3 2 Inputs 7 3 3 Outputs 8 3 4 Modes of Operation 9 3 5 External Control Interfac...

Page 3: ...ng with the GS1572 2 A user s guide to the GS1572 evaluation board including information on how to use the board and detailed schematic and board layout information An example of a board design includ...

Page 4: ...B6 and C6 C7 C8 2 1 8V DIGITAL supplying power to the following pins on the GS1572 CORE_VDD CORE_GND pins A5 E1 G10 K8 and B5 C5 D5 E2 E5 E6 E7 F4 F5 F6 F7 G9 J8 3 3 3V ANALOG supplying power to the...

Page 5: ...ORL matching network The cutouts under the pull up resistors attached to the output pins are necessary and are used to reduce the capacitance and provide better matching to the 75 transmission line A...

Page 6: ...3 3V ANALOG connection to CP_VDD pin A10 and CP_GND pin B10 of the GS1572 Figure 2 3 shows the connection to the VCO supply and Figure 2 4 shows the recommended PCB layout and component placement Note...

Page 7: ...allows the board to easily be reset 3 1 Power The GS1572 evaluation board requires a 5V power supply and a ground connection Power regulation to 3 3V and 1 8V is done on board see Figure 3 1 Power su...

Page 8: ...ats TheLOCKLEDontheGS1572indicatesthestatusoftheLOCKEDpinontheGS1572 The LED will be on whenever the GS1572 PLL is locked to PCLK Figure 3 2 Parallel Input Bus 3 3 Outputs The GS1572 contains an integ...

Page 9: ...encoding Table 3 1 gives a description of the GS1572 jumper settings in each mode NOTE The jumpers correspond directly to pins on the GS1572 Please see the GS1572 Data Sheet for a more detailed expla...

Page 10: ...nternal registers the GSPI or JTAG test operation please see the GS1572 Data Sheet Figure 3 5 JTAG HOST Interface Block SMPTE and DVB_ASI jumper leads Install two jumpers HORIZONTALLY in SMPTE mode In...

Page 11: ...On DVB_ASI SD HDb SMPTE_BYPASSb RESET_TRSTb SCLK_TCK SDIN_TDI CSb_TMS SDOUT_TDO DATA_IN 19 0 3 3V 1 8V R12 0R GND GND GND_A GND GND_A Input Power DATA_IN17 DATA_IN16 DATA_IN12 DATA_IN14 DATA_IN13 DATA...

Page 12: ...SWITCHED PCLK SCLK_TCK R58 10K SDIN_TDI DATA_IN15 R65 75R L2 5N6 R60 75R L1 5n6 1 2 C75 4u7 1 8V 1 2 C72 4u7 R66 22k SDO SDO R and L form the Output Return Loss compensation Network SUBJECT TO CHANGE...

Page 13: ...e Design 46282 1 November 2009 13 of 18 Proprietary Confidential 5 Board Layout The following illustrations show the top ground power and bottom layers of the GS1572 evaluation board Figure 5 1 Layer...

Page 14: ...2 A Guide to Designing with the GS1572 EB1572 Reference Design 46282 1 November 2009 14 of 18 Proprietary Confidential Figure 5 3 Layer 3 Power Plane Negative Image Figure 5 4 Layer 4 Bottom Routing L...

Page 15: ...F 3 C45 C46 C86 1 F 4 C55 C57 C59 C61 100nF 3 C56 C60 C71 10 F 1 C62 0 25pF 1 C63 4 7 F 1 C66 10nF 1 C67 4 7 F 1 C68 0 25pF 1 C69 33 F 3 C70 C87 C89 10nF 2 C72 C75 4 7 F 1 C73 10nF 3 C76 C77 C78 NP 4...

Page 16: ...2 2k 4 R26 R54 R55 R70 0 1 R56 3 3 1 R57 7 1 R58 10k 4 R60 R62 R64 R65 75 1 R61 750 1 R66 22k 3 R67 R68 R69 NP 1 R71 1k 1 S1 B3S_1002 5 TP1 TP2 TP3 TP4 TP5 HEADER2MM_1_1X1 TP_0 2 TP6 TP7 Test Points 1...

Page 17: ...unreliable when biased at more than a volt The capacitance drops to about 1 4 of its value Ceramic Various For values below 1uF X7R or NPO depending on what is available for that value Inductors 0402...

Page 18: ...w_sales gennum com NORTH AMERICA EASTERN REGION 4281 Harvester Road Burlington Ontario L7L 5M4 Canada Phone 1 905 632 2996 Fax 1 905 632 2055 E mail nae_sales gennum com KOREA 8F Jinnex Lakeview Bldg...

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