Semtech RDK-12GCONV UHD Converter User guide

RDK–12GCONV UHD Converter Reference Design

Reference Design Kit User Guide

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RDK-12GCONV

Reference Design Kit User Guide Rev.1

PDS-061593 September 2017

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RDK-12GCONV

Reference Design Kit User Guide Rev.1

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Revision History

Contents

1. Quick Start Guide.............................................................................................................................................6

2. Detailed Description.......................................................................................................................................8

2.1 Operation ..............................................................................................................................................8

3. System Block Diagram ................................................................................................................................ 12

4. Software User Guide.................................................................................................................................... 13

4.1 Software Setup Instructions ........................................................................................................ 13

4.2 Graphical User Interface ................................................................................................................ 14

4.2.1 Hardware Connection Quick Start ................................................................................ 14

4.2.2 Initial Software State .......................................................................................................... 15

4.2.3 Evaluation Board Selection.............................................................................................. 16

4.2.4 Refresh..................................................................................................................................... 16

4.2.5 Menu Bar ................................................................................................................................ 16

4.3 System ................................................................................................................................................. 17

4.3.1 Main Tab ................................................................................................................................. 17

4.3.2 Gearbox Tab.......................................................................................................................... 19

4.3.3 I/O Tab..................................................................................................................................... 21

4.4 Advanced Settings .......................................................................................................................... 28

4.4.1 Input Tab ................................................................................................................................ 28

4.4.2 Output Tab............................................................................................................................. 29

4.4.3 Operating Mode Tab.......................................................................................................... 30

4.4.4 Mux Tab .................................................................................................................................. 31

4.4.5 DeMux Tab............................................................................................................................. 32

4.4.6 PID Insert Tab........................................................................................................................ 33

4.5 Register Access ................................................................................................................................. 34

4.5.1 Memory Tab .......................................................................................................................... 34

5. Schematics ...................................................................................................................................................... 35

6. Board Layout .................................................................................................................................................. 41

7. Bill of Materials............................................................................................................................................... 44

Version ECO PCN Date Changes and/or Modifications

1 038509 — September 2017 Updated Section 4.3.3.

0 037977 — August 2017 New Document.

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General Description

The RDK-12GCONV UHD Converter Reference Design demonstrates the use of

Semtech's GS12241 12G UHD-SDI Re-timing Adaptive Equalizer, GS12090 Bidirectional

12G UHD-SDI Cable Equalizer/Driver, GS12281 12G UHD-SDI Re-timing Cable Driver,

and GS12070 UHD-SDI Gearbox to enable conversion from single channel 12Gb/s SDI,

quad channel 3Gb/s SDI and other multiplexing or demultiplexing modes while

minimizing the port count in designs.

This reference design not only allows your evaluation of Semtech products, but also

accelerates your time to market because the source files for the schematic, PCB layout,

micro-controller and GUI can be provided by contacting your local FAE.

Note: This Reference Design assumes familiarization with the Semtech products found

on-board the RDK-12GCONV. For further information regarding these products, please

refer to the following documents:

• GS12241 (Equalizer) Data Sheet — PDS-061386

• GS12281 (Cable Driver) Data Sheet — PDS-061385

• GS12090 (Adaptive Cable Equalizer/ Cable Driver) Data Sheet — PDS-061188

• GS12070 (Gearbox) Data Sheet — PDS-061012

• GS12070 (Gearbox) Pattern Generator Application Note — PDS-061505

RDK–12GCONV UHD Converter Reference Design Kit Contents:

• 12V Power Supply

• Micro USB Cable

• UHD Converter Board

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Figure A: RDK-12GCONV Top View

Mode

Selector

Output

(J5)

Bidirectional

(J4)

Input

(J1)

USB

(J8)

Power (+12V)

(J11)

Microcontroller

GS12070

Gearbox

GS12281

Cable Driver

GS12090

Bidirectional

Devices

GS12241

Cable Equalizer

External

Dongle

Header

(J10)

Mode

Indicator

LEDs

Status

Indicator

LEDs

Bidirectional

(J3)

Bidirectional

(J2)

Table 0-1: Connector Descriptions

Designator Description

J1 SDI Input — Dedicated SDI input is routed to the GS12241Cable Equalizer.

J2, J3, J4 SDI Bidirectional — Can act as an SDI input or as an SDI output, routed to the GS12090 Bidirectional devices.

J5 SDI Output — Dedicated SDI output is routed to the GS12281 Cable Driver.

J8 Micro USB — Used to access advanced functionality via GUI. For Software User Guide, see Section 4.

J10 External Dongle Header — Currently not implemented.

J11 +12V Power Supply — RDK-12GCONV requires minimum +5V power supply, +12V power supply recommended.

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Figure B: RDK-12GCONV Front View

Figure C: RDK-12GCONV Rear View

Mode

Selector

Output

(J5)

Bidirectional

(J4)

Input

(J1)

Mode

Indicator

LEDs

Bidirectional

(J3)

Bidirectional

(J2)

USB

(J8)

Power (+12V)

(J11)

External Dongle

Header (J10)

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1. Quick Start Guide

The RDK-12GCONV is designed to function out of the box. The following steps go

through the Initial Setup using the RDK-12GCONV board in DA Bypass mode.

Note: Unless otherwise specified, displayed LED colour within the photos do not

necessarily reflect actual LED colour for the given step.

1. Connect a video source to the dedicated input (J1).

Figure 1-1: Input (J1)

2. Connect a video monitor to the dedicated output (J5).

Figure 1-2: Output (J5)

3. Connect the 12V power supply to J11. If "red" LED is on (see Figure 1-4), the power

supply is connected backwards; power off and reverse connections.

Figure 1-3: Power Supply (J11)

Input

(J1)

Output

(J5)

Bidirectional

(J4)

Bidirectional

(J3)

Bidirectional

(J2)

Power (+12V)

(J11)

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Figure 1-4: Troubleshooting Backwards Power Supply

4. Rotate the mode selector knob until Mode 17 is selected.

Figure 1-5: Mode Selection

5. With power applied, and mode 17 selected, you should see the SDI video applied to

the input J1 on your SDI monitor display through output J5 (this output will also be

duplicated on J2-J4).



Note: This mode only supports HD, 3G, 6G, or 12G data rates. SD is supported,

however mode 18 (DA SD Bypass) must be used instead of mode 17.

Note: Advanced board functionality can be accessed via USB. See Hardware Connection

Quick Start for further details.

If on, power supply is

connected backwards

Mode

Selector

Mode

Indicator

LEDs

Mode 17

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2. Detailed Description

2.1 Operation

The UHD converter reference design has 5 BNC ports: 1 dedicated input (J1), 1 dedicated

output (J5) and three bidirectional ports (J2-J4). The bidirectional ports make the design

very flexible, minimizing the physical size of the design and reducing the BNC port

count.

The RDK-12GCONV board is powered from a 12V wall adapter (included in the kit).

This board is designed to aid users in the evaluation of Semtech 12G devices without

needing to connect to an external computer. Advanced features can be accessed

through the GUI by connecting the board via USB interface.

The UHD configuration modes can be selected using the rotary switch mounted on the

printed circuit board, or by software GUI via the USB port (J8). The selected mode can be

observed through the illuminated LEDs.

Table 2-1 illustrates the supported modes and associated LED indicators with each

mode selected.

Note: While turning the Mode selector, the output mode will be displayed as a Binary

Coded Decimal (BCD) value via the I/O Rate LEDs (see Mode Select column of Table 2-1).

When the Mode selector is not in use, the mode/rate LEDs display the selected I/O rates

(see LEDs column of Table 2-1).

Table 2-1: Mode Selection 

Green = locked input, Red = input unlocked, Blue = output, White (off) = unused port, 

Yellow = pattern generator output mode indication

Mode Select (BCD) Mode LEDs Note

Mode 1

Pattern Generator

Single Link 6G

(colour bars)

1

Mode 2

Pattern Generator

Single Link 6G

(checkfield)

1

Mode 3

Pattern Generator

Single Link 6G

(luma/chroma ramp)

1

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

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Mode 4

Pattern Generator

Single Link 12G

(colour bars)

2

Mode 5

Pattern Generator

Single Link 12G

(checkfield)

2

Mode 6

Pattern Generator

Single Link 12G

(luma/chroma ramp)

2

Mode 7

Single Link 3G to

Dual Link HD

—

Mode 8

Single Link 6G to

Dual Link 3G

—

Mode 9

Single Link 12G to

Dual Link 6G

—

Mode 10

Single Link 6G to

Quad Link HD

—

Mode 11

Single Link 12G to

Quad Link 3G

—

Table 2-1: Mode Selection (Continued)

Green = locked input, Red = input unlocked, Blue = output, White (off) = unused port, 

Yellow = pattern generator output mode indication

Mode Select (BCD) Mode LEDs Note

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

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Mode 12

Dual Link HD to

Single Link 3G

—

Mode 13

Dual Link 3G to

Single Link 6G

—

Mode 14

Dual Link 6G to

Single Link 12G

—

Mode 15

Quad Link HD to

Single Link 6G

—

Mode 16

Quad Link 3G to

Single Link 12G

—

Mode 17

Distribution

Amplifier Bypass

—

Mode 18

Distribution

Amplifier SD Bypass

—

Table 2-1: Mode Selection (Continued)

Green = locked input, Red = input unlocked, Blue = output, White (off) = unused port, 

Yellow = pattern generator output mode indication

Mode Select (BCD) Mode LEDs Note

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

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Mode 19

Gearbox Bypass

(Reserved, for

boards with

GS12282)

—

1. Requires 1080p24 HD input.

2. Requires 1080p60 3G input.

Note: Mode 19 is only available on boards with the dual input cable driver (GS12282). On other boards, selecting

this mode will change the mode LEDs and mode visible in the GUI. However, the outputs will be disabled and the

board will not pass video.

Table 2-1: Mode Selection (Continued)

Green = locked input, Red = input unlocked, Blue = output, White (off) = unused port, 

Yellow = pattern generator output mode indication

Mode Select (BCD) Mode LEDs Note

Input Output

12G

6G

3G

HD

12G

6G

3G

HD

INI/O I/O I/OOUT

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3. System Block Diagram

Figure 3-1: System Block Diagram

Power Supply

Outputs

(+5V, +3.3V, +2.5V,

+1.8V, +1.1V)

12V

Button/

Display

USB Interface

Microcontroller

STM32F205VB

Enable

GSPI Interface

Level

Shifter

RX0

RX1

RX2

RX3

GS12070

TX0

TX1

TX2

TX3

GS12241 GS12090

GS12090

GS12281/

GS12182

90Ω Dierential

Impedance Uncontrolled

50Ω Single-ended

75Ω Single-ended

100Ω Dierential

J1 J2 J3 J4 J5

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4. Software User Guide

This guide provides instructions for using the software associated with the

RDK-12GCONV.

4.1 Software Setup Instructions

Upon execution of the setup file, the following window will appear as shown in

Figure 4-1. To install the software you must click next and follow the steps listed in the

setup window.

Figure 4-1: RDK-12GCONV Software Installation Window

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4.2 Graphical User Interface

4.2.1 Hardware Connection Quick Start

1. Ensure there is no power to RDK.

2. Connect Micro USB to RDK.

Figure 4-2: Micro USB to RDK Connection

3. Connect other end of USB to PC with installed GUI.

4. Power on board.

5. Select RDK (see Section 4.2.3).

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4.2.2 Initial Software State

Initially, when the software is loaded it is in a default state as shown in Figure 4-3 below.

Figure 4-3: Initial Software State

1. File: used to load/save external configuration. See Section 4.2.5.

2. View: used to enable/disable logging window. See Section 4.2.5.

3. Help: shows current version of GUI and on-board dongle. See Section 4.2.5.

4. Evaluation Board Selection and Dongle Scan: Used to select the on-board dongle to

enable communication. See

Section 4.2.3 for details on usage.

5. Mode Selection: Operation mode drop down menu. See Section 4.3.1.1 for further

details.

6. Auto Check Box: Enables auto refresh.

7. Refresh Button: Manually refreshes GUI state. See Section 4.2.4.

1 2 3

4

5

6

7

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4.2.3 Evaluation Board Selection

After connecting the RDK-12GCONV to the PC, the user must select the dongle using the

drop list found at the top of the interface showing “Please select a device…” as shown

in Figure 4-4 and Figure 4-5.

Figure 4-4: Dongle Selection Drop List

Figure 4-5: Select RDK-12GCONV from the List

4.2.4 Refresh

The Refresh button, located in the bottom right-hand corner of the GUI, updates all of

the controls in the GUI with their respective values from the device. The GUI can

automatically perform this task every second if the Auto box is checked.

4.2.5 Menu Bar

File

The File menu allows users to load and save GS12070 Gearbox configurations. This is

particularly useful if the GS12070 has been optimized for a specific application.

The Configuration file is an XML file (*.xml) that lists register addresses along with their

corresponding value in hexadecimal format. Here is a sample excerpt from a

Configuration file:

View

Read/write operations to the RDK are logged in the GUI. The user can view this log by

clicking the Enable Logging button in the View menu. The log can then be saved to a

text file, copied to the clipboard, cleared, or hidden.

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4.3 System

The following section will outline all functionality of sub-tabs contained within the

System tab of the UHD Converter Box GUI.

4.3.1 Main Tab

System Main tab displays the following:

1. Mode select drop-down menu.

2. Advanced settings can be accessed by clicking on Gearbox, CD, BD1, BD2, BD3, EQ.

3. The current status of the BNC ports.

Figure 4-6: Main Tab

1

2

3

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4.3.1.1 Main Mode Selection

The operation mode can be selected via GUI using the Mode Select drop down menu of

the Main tab as shown in Figure 4-7.

Figure 4-7: Main Mode Selection

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4.3.2 Gearbox Tab

4.3.2.1 Overview Tab

• Gearbox Input Lock, Loss of Signal, and Data Rate Detected.

• Changing the drive strength on the outputs.

• Independent changing of the Gearbox operating mode and SD bypass.

Figure 4-8: System Gearbox Overview

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4.3.2.2 Pattern Generator Tab

• Enables the Gearbox Pattern Generator.

• Allows manual control of which pattern is generated by the GS12070.

• In order to use pattern generation mode, a clock source must be provided for the

video input. For a 12G output, a 1080p60 3G input is required. For a 6G signal, a

1080p24 HD input is required.

• For further information regarding Gearbox Pattern Generator, refer to GS12070

Pattern Generator Application Note (PDS-061505).

Figure 4-9: System Gearbox Pattern Generator

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Semtech RDK-12GCONV UHD Converter User guide

Semtech RDK-12GCONV UHD Converter User guide

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