SD356EVK/NOPB National Semiconductor, SD356EVK/NOPB Datasheet

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SD356EVK/NOPB

Manufacturer Part Number
SD356EVK/NOPB
Description
EVAL BOARD FOR LMH0356
Manufacturer
National Semiconductor
Datasheet

Specifications of SD356EVK/NOPB

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
SD356EVK Evaluation Kit
Board for LMH0356 SDI
Reclocker
User Manual
Introduction
The LMH0356 Serial Digital Interface (SDI) reclocker is designed to recover a clean clock from a serial
digital video signal which may be contaminated by jitter and to resynchronize the input video data to the
recovered clean clock. The LMH0356 SDI reclocker accepts signals conforming to standards SMPTE
259M (C), SMPTE 292M, and SMPTE 424M.
The LMH0356 includes, in addition to the reclocking circuitry, an input 4-channel multiplexer which
permits selection for reclocking of any of four serial digital video signals at the inputs of the LMH0356. It
also includes fixed equalizers on its inputs designed to reduce the inter-symbol interference (ISI)
generated by dispersive PC board traces between the serial digital video source and the reclocker inputs.
The LMH0356 fixed equalizers are designed to compensate for the frequency-dependent loss of up to 30
inches of FR-4 PC board trace.
The SD356EVK is a PC board designed to aid in the evaluation of the performance characteristics of the
LMH0356 reclocker. The SD356EVK PC board is fabricated with FR-4 PC board material. The inputs
and outputs of the LMH0356 are connected to the SMA coaxial connectors on the board using controlled-
impedance 50Ω single-ended and 100Ω differential PC board traces.
This instruction manual describes the features of the SD356EVK. It should be used in conjunction with
the LMH0356 SDI reclocker data sheet. Schematics and PC board layout drawings for the SD356EVK
board are included separately. In addition, board fabrication files are available on request. Contact your
local National Semiconductor representative.
PC Board Features
The SD356EVK is shown in Figure 1. The features of the board are described in the sections that follow.
General Description
The SD356EVK is a four-layer PC board fabricated using FR-4. The layer stackup is shown in drawing
number 980600057-001. As the drawing indicates, the nominal board thickness is .062 inches. The
board includes internal ground and power supply planes. The ground plane is the second layer of the
board (underneath the top layer) and is the reference for the controlled-impedance traces on the top layer.
The SD356EVK is fabricated using Pb-free solder and components and is comprised of RoHS-compliant
materials.
SDI Input and Output Connectors
The SDI input and output connectors are 50Ω SMA female coaxial connectors (jacks). These connectors
will mate non-destructively with 50Ω SMA male coaxial connectors (plugs). They will also mate non-
destructively with 50Ω APC-3.5 male coaxial connectors and 2.92 mm (K) male coaxial connectors.
These connectors will NOT mate to 2.4 mm connectors. Do not attempt to connect 2.4 mm connectors to
the SD356EVK PC board. This will damage both the board and the connected device or cable.
SD356EVK User Manual
Rev 1.0
© 2008, National Semiconductor Corp.
1 of 11
National Semiconductor
EVK User Manual

Related parts for SD356EVK/NOPB

SD356EVK/NOPB Summary of contents

Page 1

... These connectors will NOT mate to 2.4 mm connectors. Do not attempt to connect 2.4 mm connectors to the SD356EVK PC board. This will damage both the board and the connected device or cable. SD356EVK User Manual Rev 1.0 National Semiconductor EVK User Manual © 2008, National Semiconductor Corp. ...

Page 2

... SD356EVK. Do not allow heavy cables to hang unsupported from the connectors as they may break off the board. SD356EVK User Manual Rev 1.0 Control/Indicator LEDs Figure 1. SD356EVK board © 2008, National Semiconductor Corp. DC Power Connectors External Control Header SMBus Connector (not active) ...

Page 3

... The control lines of the LMH0356 SDI reclocker can be controlled by various means using the SD356EVK. The primary method for controlling these lines is the DIP switches located on the SD356EVK board. The DIP switches are labeled according to their function. When the switch actuator is pushed to the right SD356EVK User Manual Rev 1 © 2008, National Semiconductor Corp. ...

Page 4

... LED indicators are provided near the top of the board to indicate the state of the control inputs and the indicator outputs of the LMH0356 SDI reclocker. The LED states and their meanings are summarized in Table 1. SD356EVK User Manual Rev 1 © 2008, National Semiconductor Corp. ...

Page 5

... Gb/s signal or no signal detected LOCK DET Indicator on (green) when the LMH0356 reclocker is locked to the incoming signal © 2008, National Semiconductor Corp. Switch “Off” Function and Indication Select line pulled to logic 0 Indicator light turns green Rate line pulled to logic 0 Indicator light ...

Page 6

... SyntheSys Research BERTScope as a signal generator, eye diagram measurement device, and bit error rate test receiver. Other equivalent instruments could be used for thse measurements. The equipment used for testing the SD356EVK is listed in Table 2. SD356EVK User Manual Rev 1 © 2008, National Semiconductor Corp. ...

Page 7

... BERTScope Clock Out Data Out Data In Data+ Data- Data+ Data- UTIFlex Cable SD356 EVK Board SDI0 SDO SDI0 SDO SCO SCO VCC_IC VCC GND SMBus SMBus Controller Cable ` © 2008, National Semiconductor Corp. UTIFlex Cable UTIFlex Cable RF In HP8593E Spectrum Analyzer ...

Page 8

... SD356EVK User Manual Rev 1.0 Suggested Equipment Manufacturer Equipment Name SyntheSys BERTScope Research J-Bert Agilent Technologies Hewlett-Packard DC Power Supply Hewlett-Packard Portable Spectrum Analyzer Micro-Coax Inc. UTIFlex © 2008, National Semiconductor Corp. Model Number 12500B N4903A E3610A 8593E UFB205A- 0-0360- 000000 ...

Page 9

... Rev 1.0 Value 1.4835 Gb/s PRBS-7 200 © 2008, National Semiconductor Corp. Comments Any valid SMPTE data rate supported by the LMH0356 SDI reclocker can be used. These rates are 270 Mb/s, 1.485 Gb/s, 1.4835 Gb/s, 2.967 Gb/s, and 2.97 Gb/s This is a standard pseudorandom pattern 127 bits long ...

Page 10

... LOCK DET Indicator on (green), indicating that the LMH0356 reclocker is locked to the incoming signal © 2008, National Semiconductor Corp. Comments This is the setting for selecting input SDI0. Other selection settings can be used with other SDI inputs. This is the setting for automatic rate detect. ...

Page 11

... SDI reclocker. In concept simple input/output board with the LMH0356 SDI reclocker in the signal path. This manual has described the features of the PC board and its operation. Please also see the SDI Feature site at:: www.national.com/sdi SD356EVK User Manual Rev 1 © 2008, National Semiconductor Corp. ...

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