CLC001 NSC | Alldatasheet

Document overview

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Technical content

Features

n Adjustable output amplitude n Differential input and output n Accepts LVPECL or LVDS input swings n Low power dissipation n Single +3.3V supply

Applications

n Digital routers and distribution amplifiers n Coaxial cable driver for digital transmission lines n Twisted pair driver n Serial digital video interfaces for the commercial and broadcast industry n SMPTE, Sonet/SDH, and ATM compatible driver n Buffer applications Connection Diagram (8-Pin SOIC) Typical Application DS101329-10

622 Mbps Eye Pattern with STM-4 Signal Mask

See NS Package Number M08A DS101329-1 March 2001 CLC001 Serial Digital Cable Driver with Adjustable Outputs © 2001 National Semiconductor Corporation DS101329 www.national.com

should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation. Note 2:Current flow into device pins is defined as positive. Current flow out of device pins is defined as negative. All voltages are stated referenced to VSS =0 V . Note 3:Typical values are at 25˚C and 3.3V. Note 4:This parameter is Guaranteed by Design. Note 7:R L =7 5Ω , AC-coupled at 622 Mbps, RREF = 1.5 kΩ 1% (for VSDO = 1.0 Vp-p ±10%), clock pattern input. Note 8:Input Current Balance (IINB) is the difference between the Input Current (IIN)o nVIN+ and VIN− for the same bias condition. FIGURE 1. Test Loads

section for details. If unused leave as no connect (NC).

6 SDO Serial data true output

7 SDO

FIGURE 2. Test Circuit

FIGURE 9. LVDS, DC-coupled

Applicationfor an illustration. for 800mV across a 50Ω doubly terminated load. drawing are provided with the board.

  • Device Datasheet and / or EVK User Manual
  • View a picture of the EVK
  • View the EVK Schematic
  • View the top assembly drawing and BOM
  • View the bottom assembly drawing and BOM PCB Layout Recommendations Printed circuit board layout affects the performance of the CLC001. The following guidelines will aid in achieving satisfactory device performance.
  • Use a ground plane or power/ground plane sandwich design for optimum performance.
  • Bypass device power with a 0.01 µF monolithic ceramic capacitor in parallel with a 6.8 µF tantalum electrolytic capacitor located no more than 0.1″ (2.5 mm) from the device power pins.
  • Provide short, symmetrical ground return paths for: — inputs, — supply bypass capacitors and — the output load.
  • Provide short, grounded guard traces located — under the centerline of the package, — 0.1″ (2.5 mm) from the package pins — on both top and bottom of the board with connecting vias. DS101329-13

FIGURE 10. Output level’s sensitivity to RREF

Physical Dimensionsinches (millimeters) unless otherwise noted LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com Order Number CLC001AJE CLC001 Serial Digital Cable Driver with Adjustable Outputs National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.