National Semiconductor SD303EVK, LMH0303, LMH0307, SD307EVK User Manual

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SD303EVK / SD307EVK

LMH0303 / LMH0307

National Semiconductor EVK User Manual

February 3, 2010

Evaluation Board User Guide

Overview

The SD303/SD307 Evaluation Kit (EVK) enables evaluation of the LMH0303 3G/HD/SD SDI Cable Driver with Cable Detect or the LMH0307 3G/HD/SD SDI Dual Cable Driver with Cable Detect. A graphical user interface allows managing the SMBus registers of the LMH0303 or LMH0307 device.

Evaluation Kit (SD303EVK / SD307EVK) Contents

The EVK contains the following parts:

• SD303/SD307 EVK board assembly with either the LMH0303 or LMH0307 cable driver

• USB cable

• SD303/SD307 EVK User Guide

Evaluation Board Description

The evaluation board comes in two versions, depending on the cable driver installed:

1) SD303 with the LMH0303 cable driver

2) SD307 with the LMH0307 dual cable driver

The two cable drivers share the same evaluation board (SD303/SD307). The SD303/SD307 evaluation board silk screen shows the LMH0307 pin name terminology. Table 1 shows the pin name differences between the LMH0307

and LMH0303. The LMH0303 has a single output channel, SDO/SDO channel and refers to it as SDO0/SDO0

Reference LMH0307 Name L M H0307 Description LMH0303 Name LMH0303 Descript ion

J3 SDO0 Channel 0 true output SDO True output J4 SDO0¯¯¯¯¯ Channel 0 complement output SDO¯¯¯¯ Complement output J5 SDO1 Channel 1 true output J6 SDO1¯¯¯¯¯ Channel 1 complement output

D9 TF0P SDO0 Termination Fault TFP SDO Termination Fault

D10 TF0N SDO0¯¯¯¯¯ Termination Fault TFN SDO¯¯¯¯ Termination Fault

D8 TF1P SDO1 Termination Fault D7 TF1N SDO1¯¯¯¯¯ Termination Fault

Figure 1 shows the SD303/SD307 evaluation board.

¯¯¯¯¯

. In addition, the LMH0307 adds a second output channel: SDO1/SDO1

Table 1. LMH0307 and LMH0303 Pin Name Comparison

¯¯¯¯

. The LMH0307 has that same output

¯¯¯¯¯

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Figure 1. SD303/SD307 Evaluation Board

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SDI Input and SDO Output

The SDI input connectors (J1 and J2) are 50Ω SMA connectors. The SD303/SD307 is initially configured for 100Ω differential input. To configure the SD303/SD307 for 50Ω single-ended input, remove R28 and place 49.9Ω 0402 resistors in R9 and R10. When using only one input, the other input should be terminated with a 50Ω SMA termination.

The SDO output connectors (J3 and J4 for the SD303; and J3, J4, J5, and J6 for the dual output SD307) are 75Ω BNC connectors. When using only one side of an output pair, the other side should be terminated with a 75Ω BNC termination. For example, when only using SDO0 on the LMH0307, SDO0 termination.

¯¯¯¯¯

should be terminated with a 75Ω BNC

DC Power Connectors and USB Connector

The red and black binding posts (J8 and J9) provide power for the LMH0303/LMH0307 device, and the USB connection provides power for the remaining board functions, including the microcontroller and the LEDs. For

proper operation, the SD303/SD307 should first be powered with a DC input voltage (between J8 and J9) of

3.3V ± 5% (3.6V maximum), and then the USB cable should be connected between the evaluation board and the PC. The POWER LED will flash Red while the board is powered from the 3.3 VDC supply alone, and then

change to solid Green once the USB cable is connected to the PC. The POWER LED will remain Green as long as the board is powered correctly.

JP1 – LMH0303/LMH0307 Jumper Connection to Microcontroller

A jumper block should be placed on JP1 to connect the LMH0303/LMH0307 pins to the microcontroller. The ALP software will not function correctly if this jumper block is not in place. Separate jumpers may be used, but they

must be placed to connect the following pins of JP1: RSTI (pins 11-12), SD/HD (pins 13-14), FAULT

jumpers) may be removed to control the LMH0303/LMH0307 pins externally, but then the microcontroller will no longer be able to communicate with the cable driver.

¯¯¯¯¯¯

(pins 15-16), and RSTO

¯¯¯¯

(pins 5-6), ENABLE (pins 7-8), SDA (pins 9-10), SCL

¯¯¯¯¯

(pins 17-18). This jumper block (or individual

Controls and Indicators

ENABLE

The ENABLE push button switch controls ENABLE, and the ENABLE LED shows its state. The ENABLE LED is Green when the cable driver is enabled (ENABLE = 1), and Red when the cable driver is disabled (ENABLE = 0).

When the cable driver is disabled, it enters a deep power down mode, and Termination Fault detection and LOS detection no longer function.

If the LOSEN register bit (bit 4 of register 05h) is set, then the cable driver can be disabled with LOS functioning. With LOSEN set, LOS

by pushing the ENABLE switch will still power down the device completely (including powering down Termination Fault detection and LOS device will power down with the LOS

power back on.

SD/HD

¯¯¯¯

is combined with the ENABLE functionality. In this mode, disabling the device

detection), but if ENABLE is left active and the signal is removed from the input, the

¯¯¯¯

detection still functioning. When the input signal is reapplied, the device will

¯¯¯¯

detection still

¯¯¯¯

The SD/HD push button switch controls SD/HD, and the SD/HD LED shows its state. The SD/HD LED is Green when the cable driver is configured for HD/3G edge rates (SD/HD = 0), and Red when the cable driver is configured for SD edge rates (SD/HD = 1). The default setting for the SD/HD LED is Green for HD/3G edge rates.

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¯¯¯¯

RSTI

¯¯¯¯

The RSTI

push button switch controls RSTI driver to its default register settings. The RSTI the cable driver is held in reset (RSTI toggle reset: once to put the device in reset mode (RSTI

¯¯¯¯

, and the RSTI

¯¯¯¯

LED is Green during normal operation (RSTI

¯¯¯¯

= 0). To reset the device, the RSTI

¯¯¯¯

LED shows its state. RSTI

¯¯¯¯

= 0), and again to resume normal operation (RSTI

¯¯¯¯

is used to reset the cable ¯¯¯¯

= 1), and Red when

¯¯¯¯

switch must be pushed twice to fully

¯¯¯¯

= 1)

with the default register settings.

¯¯¯¯¯

RSTO

¯¯¯¯¯

The RSTO

LED shows the state of RSTO

¯¯¯¯¯

. The RSTO

¯¯¯¯¯

LED is normally Red to indicate RSTO

¯¯¯¯¯

= 0. RSTO

is the

reset output used when daisy chaining multiple cable drivers on the same SMBus. After writing a new device address to register 00h (the ID register), the RSTO high until the device is reset with RSTI

¯¯¯¯

¯¯¯¯¯

LED changes to Green to indicate RSTO

¯¯¯¯¯

= 1. RSTO

remains

Termination Faults (TFxx)

The Termination Fault LEDs show the state of the Termination Faults on the cable driver outputs. The Termination Fault LEDs are Green to indicate proper termination, Red to indicate improper or missing termination, and off to indicate the Termination Faults are not valid under the current cable driver conditions.

The cable driver must be enabled and must have a valid input signal in order to properly detect cable termination on the output. If no signal is detected and the LOS

¯¯¯¯

LED is Red, then the Termination Fault detectors (TF1P, TF1N, TF0P, and TF0N for the LMH0307) cannot determine the state of the output termination and the LEDs will be off. When a valid input signal is applied, the Termination Fault detectors will show the correct state of their termination. If the cable driver is disabled or if the output channel is powered down, the Termination Fault LEDs will be off.

¯¯¯¯

LOS

¯¯¯¯

The LOS signal (LOS the LOS ¯¯¯¯

LOS

LED shows the status of the input signal detector. The LOS

¯¯¯¯

= 1), and Red when no signal is detected (LOS

¯¯¯¯

detection is disabled as well and the LOS

¯¯¯¯

LED will be Red to indicate no signal can be detected. If the

LED is Red, then the Termination Fault detection does not function and the TFxx LEDs are forced off.

¯¯¯¯

LED is Green to indicate a valid input

= 0). When the cable driver is disabled (ENABLE = 0),

With the LOSEN register bit (bit 4 of register 05h) set, the LOS disabled. In this mode, LOS cable driver will power down but keep the LOS

¯¯¯¯

is combined with the ENABLE functionality, and if the input signal is removed then the

¯¯¯¯

detection running. The device will power back on once an input

¯¯¯¯

detection may still function while the cable driver is

signal is detected. (While in this mode, disabling the device by pushing the ENABLE switch will still power down the device completely, including powering down Termination Fault and LOS

¯¯¯¯

detection).

LEDs and Push Button Switches Summary

Table 2 shows a summary of the LEDs provided to assist the user in determining the configuration of the board, and Table 3 shows a summary of the push button switches provided to allow control of the board functions.

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Table 2. SD303/SD307 LED Indicators

Default

LED Reference

D1 POWER Green POWER=1, board powered

D2 ENABLE Green ENABLE=1, device enabled D3 SD/HD Green SD/HD=0, HD/3G mode SD/HD=1, SD mode N/A

D4 MODE Off N/A N/A No function, LED always off D5 RSTO¯¯¯¯¯ Red RSTO¯¯¯¯¯ =1 RSTO¯¯¯¯¯ =0 N/A D6 RSTI¯¯¯¯ Green RSTI¯¯¯¯ =1, normal operation RSTI¯¯¯¯ =0, device held in reset N/A

D7 TF1N Off

D8 TF1P Off

D9 TF0P Off

D10 TF0N Off

D11 LOS¯¯¯¯ Red

after

Reset *

Function when GREEN Function when RED Function when OFF

When flashing Red, indicates

TF1N=0, SDO1¯¯¯¯¯ properly terminated

TF1P=0, SDO1 properly terminated

TF0P=0, SDO0 properly terminated

TF0N=0, SDO0¯¯¯¯¯ properly terminated

LOS¯¯¯¯ =1, signal detected at

input

the 3.3 VDC supply is connected but the USB is not ENABLE=0, device powered down

TF1N=1, Termination Fault on SDO1¯¯¯¯¯

TF1P=1, Termination Fault on SDO1

TF0P=1, Termination Fault on SDO0

TF0N=1, Termination Fault on SDO0¯¯¯¯¯

LOS¯¯¯¯ =0, no input signal

detected

Board not powered

N/A

Termination Fault not valid (channel is powered down or no input signal detected) Termination Fault not valid (channel is powered down or no input signal detected) Termination Fault not valid (channel is powered down or no input signal detected) Termination Fault not valid (channel is powered down or no input signal detected)

N/A

* Shows the default value after the board is reset (or initially powered on) with no input signal.

Table 3. SD303/SD307 Push Button Controls

Control Reference Description

S1 SAVE No function. S2 RESET¯¯¯¯¯¯ Push to completely reset the board, device, and ALP software. S3 ENABLE Toggles ENABLE. Push to set ENABLE=0 and power down the device. Push again to set ENABLE=1

and re-enable the device.

S4 SD/HD Toggles SD/HD. Push to set SD/HD=1 and enable SD mode. Push agai n to set SD/HD=0 and enable

HD/3G mode. S5 MODE No function. S6 RSTI¯¯¯¯ Toggles RSTI¯¯¯¯ . Push once to set RSTI¯¯¯¯ =0 and reset the device. Push again to set RSTI¯¯¯¯ =1 and return

to normal operation following the reset.

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Software Setup

System Requirements

Operating System: Windows XP or Vista USB: 2.0

Installation

Download the latest software from http://www.national.com/analog/interface/sd303_307evk. Extract the ALPF_monthdayyear_major version_minor version.exe” (ex. ALPF_07312008_125_0016.exe) file to a temporary location that can be deleted later.

Make sure the evaluation board is not connected to the PC. The following installation instructions are for the Windows XP Operating System.

Install the ALP software

Execute the ALP Setup Wizard program called “ALPF_monthdayyear_major version_minor version.exe” (ex. ALPF_07312008_125_0016.exe) that was extracted to a temporary location.

There are 7 steps to the installation once the setup wizard is started:

1. Select the “Next” button.

2. Select “I accept the agreement” and then select the “Next” button.

3. Select the location to install the ALP software and then select the “Next” button.

4. Select the location for the start menu shortcut and then select the “Next” button.

5. There will then be a screen that allows the creation of a desktop and Quick Launch icon. After selecting the desired choices select the “Next” button.

6. Select the “Install” button, and the software will then be installed to the selected location.

7. Uncheck “Launch Analog LaunchPAD” and select the “Finish” button. The ALP software will start if “Launch Analog LaunchPAD” is checked, but it will not be useful until the USB driver is installed.

Power on the SD303/SD307 evaluation board with a 3.3 VDC power supply. Numerous LEDs will turn on, and the POWER LED will flash Red. Connect the PC and the SD303/SD307 evaluation board together with the USB cable. The POWER LED will stop flashing, and the “Found New Hardware Wizard” will open on the PC. Proceed to the next section to install the USB driver.

Install the USB driver

There are 6 steps to install the USB driver:

1. Select “No, not at this time” then select the “Next” button.

2. Select “Install from a list or specific location” then select the “Next” button.

3. Select “Search for the best driver in these locations”. Uncheck “Search removable media” and check “Include this location in the search”.

4. Browse to the Install Directory which is typically located at “C:\Program Files\National Semiconductor Corp\Analog LaunchPAD\vx.x.x\Drivers” and select the “Next” button. Windows should find the driver.

5. Select “Continue Anyway”.

6. Select the “Finish” button.

The software installation is complete. The POWER LED on the board should turn to solid Green. The ALP software may now be launched, as described in the next section.

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Software Description

Startup

Make sure all the software has been installed and the hardware is powered on and connected to the PC. Execute “Analog LaunchPAD” from the start menu. The default start menu location is “Programs\National Semiconductor Corp\Analog LaunchPAD vx.x.x\Analog LaunchPAD”.

The application should come up in the state shown below (for the LMH0307). If it does not, see “Trouble Shooting” at the end of this document.

Figure 2. ALP Startup Screen for LMH0307

LMH0303/LMH0307 Profiles

There are separate profiles for the LMH0303 and the LMH0307. The ALP software automatically detects which device is connected and configures the profile accordingly. There are four application tabs for the LMH0303/LMH0307 device.

Information Tab

The Information tab is shown in Figure 3 (for the LMH0307).

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Figure 3. LMH0307 Information Tab

LMH0303 and LMH0307 Tab

The LMH0303/LMH0307 tabs present a high level view of the cable driver. Figure 4 shows this tab for the LMH0307, and Figure 5 shows this tab for the LMH0303.

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Figure 4. LMH0307 Main Tab

Figure 5. LMH0303 Main Tab

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Firmware Version – FW Ver

FW Ver shows the version of the firmware installed on the evaluation board.

Termination Fault

These controls show the default configuration of the HD and SD Termination Fault Threshold registers and also provide the ability to change the thresholds. The LMH0307 has two pairs of Termination Fault Threshold registers – one HD/SD pair for each of its two output channels – as shown in Figure 4. The LMH0303 has only one HD/SD pair of Termination Fault Threshold registers for its single output channel, as can be se en in Figure 5.

Increasing the Termination Fault Threshold settings decreases the cable driver’s sensitivity to Termination Faults. This is useful if the cable driver is indicating termination faults when the output appears to be properly terminated. Decreasing the Termination Fault Threshold settings increases the cable driver’s sensitivity to Termination Faults which is useful for determining cable detection at the end of long cables.

Compare Command and Termination Fault Counters

Compare Command configures the CMPCMD section of the TEST register (08h) on the LMH03 03 or LMH0307. The Termination Fault Counters reflect the current configuration of the TEST register CMPCMD bits.

The Termination Fault Counters provide an indication of how the cable driver is reading the Termination Faults based on the current Termination Fault Threshold settings. Perfectly terminated outputs should read back “0”, and unterminated outputs should read back “31”.

Control

Refresh

The Refresh button provides a manual refresh of the state from the evaluation board to the LMH0303/LMH0307 tab. Changes to the board will not be reflected in the LED icons and Line Control checkboxes on the LMH0303/LMH0307 tab until the Refresh button is pressed. This can be done automatically by using the Auto Refresh checkbox.

Auto Refresh Checkbox

The Auto Refresh checkbox provides an automatic refresh of the state from the evaluation board to the LMH0303/LMH0307 tab once per second. This provides automatic updating of the LED icons and Line Control checkboxes on the LMH0303/LMH0307 tab to reflect any board changes.

Line Control

Power Down 0 and 1 (LMH0307 only)

Power Down 0 and 1 checkboxes control the PD0 and PD1 power down bits (bits 5 and 6 in register 02h - MASK) and will selectively power down one or both of the output channels on the LMH0307.

Enable

The Enable checkbox controls the associated ENABLE pin on the LMH0303/LMH0307. Disabling o r un -checking the Enable checkbox will force the LMH0303/LMH0307 into a deep power down mode.

RSTI

The RSTI checkbox controls the RSTI

¯¯¯¯

the cable driver in reset.

pin. This checkbox is checked for normal operation, and un-checked to put

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SD/HD

The SD/HD checkbox controls the state of the SD/HD pin. This checkbox is un-checked by default to enable HD/3G mode. Enabling this checkbox sets the cable driver edge rates to SD mode.

SDO Amp

The SDO Amp controls set the amplitude of the output driver(s). The LMH0307 has two independently configurable outputs (SDO0 and SD01) and the LMH0303 has a single configur able output (SDO). For the LMH0307, SDO Amp 0 configures the AMP0 bits in the OUTPUT0 register (04h), and SDO Amp 1 configures the AMP1 bits in the OUTPUT1 register (06h). For the LMH0303, SDO Amp configures the AMP bits in the OUTPUT register (04h).

The default amplitude setting is 0x10 for 800 mV and increased to around 880 mV

in roughly 5 mV increments.

P-P

. The output amplitude may be lowered to around 720 mV

P-P

LED Icons

The diagram of the LMH0303/LMH0307 device is framed by a number of colored LED icons that represent the LED state on the board. Note that either the Refresh button or the Auto Refresh checkbox must be used to update the LED icons in the LMH0303/LMH0307 tab to reflect any board changes.

FAULT LED

The FAULT LED shows the current state of the FAULT detected (FAULT

¯¯¯¯¯¯

= 1) and Red to indicate one or more faults have been detected (FAULT

checkbox should be checked in order to actively monitor the state of the FAULT

¯¯¯¯¯¯

pin. The FAULT LED is Green to indicate no faults are

¯¯¯¯¯¯

pin.

= 0). The Auto Refresh

¯¯¯¯¯¯

FAULT

is triggered and set low for a Termination Fault on any output or the loss of signal on the input. FAULT

¯¯¯¯¯¯

is cleared and set high again when the faults have been removed by either terminating the outputs, applying the input signal, or changing the register settings in the MASK or DIRECTION registers.

Registers Tab

The Registers tab displays all registers for the LMH0303 or LMH0307. Figure 6 shows the Registers tab for the LMH0307. The Value field indicates the value of the currently selected register.

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Figure 6. LMH0307 Registers Tab

Each register can be examined in detail by either double clicking on the desired registers fold bar (with the address and the register name, e.g. 0x00 – ID) or by single clicking the icon at the right of the fold bar (two inverted carats).

The Refresh button will re-read the currently selected register and the Refresh All will read all registers in the device. Changes may be made to the registers by checking or un-checking the individual register bits or typing in a new register value in the Value field. After setting the appropriate register value, the Apply button must be pressed to apply the changes. The detailed view of the STATUS register is shown in Figure 7 with Verbose Descriptions checked and Figure 8 with Verbose Descriptions un-checked.

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Figure 7. LMH0307 Registers Tab with Verbose Descriptions

Figure 8. LMH0307 Registers Tab without Verbose Descriptions

The Display button provides another view of the register set and is depicted in Figure 9. The Display dialog supports the Windows copy command (Ctrl+c).

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Figure 9. LMH0307 Register Display

The Load and Save buttons provide a handy mechanism for restoring or saving the register set external to the evaluation board.

Cable Driver Output Waveform

Test Conditions

The SDO0 output of the LMH0307 on the SD307 is observed in the following example. The input signal is a 2.97 Gbps PRBS10 from the Agilent 86130A 3.6G BERT. The input signal is connected differentially to the SDI SMA inputs on the evaluation board with matched 3’ SMA cables. The LMH0307 is running in HD/3G mode (SD/HD=0). The SDO0 output is connected through 1m of Belden 1694A cable to the TCA75 input module on the Tektronix

DSA 71254 12.5 GHz Oscilloscope. SDO0

Test Results

Figure 8 shows the typical SDO0 output waveform from the LMH0307.

¯¯¯¯¯

is terminated with a 75Ω BNC terminator.

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Figure 10. LMH0307 SDO0 Output Waveform at 2.97 Gbps

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Trouble Shooting

If the following window (Figure 11) opens after starting the ALP software, double check the hardwa re setup.

Figure 11. Analog LaunchPAD No Devices Error

It may also be that the USB driver is not installed. Check the device manager. There should be an ”NSC ALP Nano Atmel” device under the “Universal Serial Bus Controllers” as shown below in Figure 12.

Figure 12. Windows XP, Analog LauchPAD USB Driver

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The software should start with only “LMH0303” or “LMH0307” in the “Devices” pull down menu. If there are more devices then the software is most likely in demo mode. When the ALP is operating in demo mode there is a “(Demo Mode)” indication in the lower left of the application status bar as shown in Figure 13.

Figure 13. Analog LaunchPAD in Demo Mode

Disable the demo mode by selecting the “Preferences” pull down menu and un-checking “Enable Demo Mode”.

Figure 14. Analog LaunchPAD Preferences Menu

After demo mode is disabled, the ALP software will poll the ALP hardware. The ALP software will update and have only “LMH0303” or “LMH0307” under the “Devices” pull down menu.

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Figure 15. Analog LaunchPAD Screen with Demo Mode Off

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Bill of Materials

Reference Designator Qty Description Manufacturer Manufacturer Part No.

C1, C2 2 1uF Capacitor Ceramic 10V, 20%, X5R, 0402 Panasonic ECJ-0EB1A105M C3, C4, C5, C6, C10, C11, C14, C24, C26, C28 10 4.7uF Capacitor Ceramic 6.3V, 20%, X5R, 0603 Panasonic ECJ-1VB0J475M

C7, C25, C27, C29 4 100pF Capacitor Ceramic 50V, 5%, C0G, 0603 Panasonic ECJ-1VC1H101J C8, C30, C31 3 0.1uF Capacitor Ceramic 50V, 10%, X7R, 0603 Panasonic ECJ-1VB1H104K C9 1 10uF Capacitor Ceramic 6.3V, 20%, X5R, 0603 Panasonic ECJ-1VB0J106M

C12 1 C13, C15, C20, C21, C22, C23

C16, C17 2 12pF Capacitor Ceramic 50V, 5%, C0G, 0603 Panasonic ECJ-1VC1H120J C18, C19 2 220nF Capacitor Ceramic 10V, 10%, X5R, 0603 Panasonic ECJ-1VB1A224K

D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11 11 BiColored LED (Green, Red) LITE-ON LTST-C155KGJRKT

D13 1 Bidrectional ESD Transient Supressor, SOT23-6 COMCHIP CEBS0624V-G D14 1 Diode Schottkey Array, 40V, SOT363 Diodes Inc BAS40DW-05-7-F J1, J2 2 SMA Connector (Edge Launch) Johnson Components 142-0701-851 J3, J4, J5, J6 4 75 ohm BNC (Edge Launch) Trompeter UCBJE20-1 J7 1 USB Mini-B Recept, R/A, 5POS Molex 54819-0572 J8 1 Binding Post (Banana Jack) Red Emerson 111-0702-001 J9 1 Binding Post (Banana Jack) Black Emerson 111-0703-001 JP1 1 10x2 Header, 0.100" spacing Tyco Electronics 87215-7 JP2 1 7x2 Header, 0.100" spacing Tyco Electronics 87215-4 L1, L2, L3, L4 4 6.8nH Inductor, 0402 Murata LQP15MN6N8B02D Q1 1 MOSFET, P-Ch, 12V, 4.3A, SOT-23 International Rectifier IRLML6401TRPBF

R1, R2, R3, R4, R5, R6, R7, R8

R11 1 750 ohm Resistor 1%, 1/16W, 0402 Vishay CRCW0402750RFKED R12, R13, R14, R15, R32, R33, R34, R35, R36, R37 10 10k ohm Resistor 5%, 0.1W, 0603 ROHM MCR03EZPJ103 R16, R18, R20, R22, R24, R40, R42, R44, R46, R48 10 300 ohm Resistor 5%, 0.1W, 0603 ROHM MCR03EZPJ301 R17, R19, R21, R23, R25, R39, R41, R43, R45, R47, R49 11 270 ohm Resistor 5%, 0.1W, 0603 ROHM MCR03EZPJ271

R26, R27 2 22 ohm Resistor 5%, 1/10W, 0603 ROHM MCR03EZPJ220 R28 1 100 ohm Resistor 1%, 1/16W, 0402 ROHM MCR01MZPF1000 R29, R31 2 16.5k ohm Resistor 1% 0.1W, 0603 ROHM MCR03EZPFX1652 R30 1 36.5k ohm Resistor SMD 1%, 0.1W, 0603 ROHM MCR03EZPFX3652 R38 1 300 ohm Resistor SMD 1%, 1/16W, 0402 ROHM MCR01MZPF3000 R50 1 52.3k ohm Resistor SMD 1%, 0.1W, 0603 ROHM MCR03EZPFX5232 R51 1 2.74k ohm Resistor 0603 1%, 0.1W, 0603 ROHM MCR03EZPFX2741 R52 1 100k ohm Resistor 5%, 1/10W, 0603 ROHM MCR03EZPJ104 S1, S2, S3, S4, S5, S6 6 Switch, Tactile, SPST w/GND, SMD Omron Electronics Inc B3U-1100P U1 1 AVR 8-bit Microcontroller, 128K, 64QFN Atmel AT90USB1287-16MU U2 1 Regulator, LDO, 300mA, 3.3V, 8MSOP National Semiconductor LP3981IMM-3.3/NOPB U3 1 LMH0307 3G SDI Dual Cable Driver, LLP16 National Semiconductor LMH0307SQ X1 1 Crystal, 8.00 MHz , 8 pF, Fund, SMD NDK NX5032GA 8MHZ AT-W

0.033uF Capacitor Ceramic 50V, 10%, X7R, 0603

6 1uF Capacitor Ceramic 16V, 10%, X5R, 0603 Panasonic ECJ-1VB1C105K

8 75 ohm Resistor 1%, 1/16W, 0402 ROHM MCR01MZPF75R0

Panasonic ECJ-1VB1H333K

Page 20

Appendix

Additional typical performance plots measured with the SD303EVK and SD307EVK are provided as reference.

ORL (Output Return Loss) plots are shown for each output. Eye patterns showing transition times and jitter are shown for 2.97 Gbps. Amplitude measurements are

shown for the outputs at 270 Mbps.

Equipment: HP 8722ES Network Analyzer, Agilent DCA-J 86100C Scope, BertScope Digital Synthesis

Conditions: Nominal supply and room temperature, connection cables only

ORL Plot - Channel 0 – Negative

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ORL Plot - Channel 0 – Positive

ORL Plot - Channel 1 – Positive

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ORL Plot - Channel 1 – Negative

Smith Chart – Channel 0 – Positive

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2.97Gbps EYE - Channel 0 – Positive – Transition Times

2.97Gbps EYE - Channel 0 – Positive – Jitter

Page 24

270 Mbps EYE – Channel 0 – Negative – Color Bar - Amplitude

270 Mbps EYE – Channel 0 – Positive – Color Bar – Amplitude

Page 25

270 Mbps EYE – Channel 1 – Negative – Color Bar – Amplitude

270 Mbps EYE – Channel 1 – Positive – Color Bar – Amplitude

Schematic

Page 26

D D

C C

B B

A A

RTF1NLED

GND GND GND

RTF1NLED

BANANA JACK (Red)

VCC

VCC VCC VCC

10uF

DVCC

0.1uF

100pF

VCC GND

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

JP1

Header 10X2

GTF1NLED

DVCC

VCC

LMH0303USBDigital

LMH0303USB

GTF1NLED

VCC

DVCC

D11

BiColored LED

GA1RA

GND

R10

300

270

R24

R25

GCDLED

RCDLED

VCC GND

RSTIbar ENABLE

SD/HDbar

FAULT

SCL

SDA

10K

R12

R13

R14

OPEN

VCC

RSTIbar

ENABLE

SDA

SCL

LMH0303 / LMH0307

RSTObar

10K

R15

VCC

RTF0NLED

GTF0NLED

300

270

R18

R19

D10

BiColored LED

GK3RK

GND

DVCC

GND

SDIbar

1uF

R28

100

750

GND

R11

SDI1SDIbar2VEE3RREF

RSTObar SDO1bar

SD/HDbar

SDO0bar

FAULT

SDO0

VCC

L2 6.8nH

4.7uF

SDO0bar

GND

1uF

DAP

SDO1

4.7uF

GND

OPEN

SDI

RTF1NLED

VCC

R22

300

C31

0.1uF

GNDGND

RSTObar

16 15 14 13

FAULT

0.1uF

GND

C30

GTF0PLED

L1 6.8nH

270

BiColored LED

SDO0

R17

GK3RK

VCC

RTF0PLED

300

GTF1NLED

RTF1PLED

GTF1PLED

R16

DVCC

4 3

R23

270

6.8nH L4

4.7uF

6.8nH C5

4.7uF

R20

300

4 3

R21

270

BiColored LED

SDO1bar

GND

SDO1

GND

BiColored LED

BANANA JACK (Black)

GND

RSTIbar

SDA

SCL

ENABLE

GCDLED

RCDLED

SD/HDbar

FAULT

RSTObar

RCDLED

GCDLED

GTF1PLED

RTF1PLED

GTF0NLED

RTF0NLED

GTF0PLED

RTF0PLED

GTF1PLED

RTF1PLED

GTF0NLED

RTF0NLED

GTF0PLED

DVCC DVCC

GNDGND

Date: 10/7/2009 Sheet of

File: C : \Documents and Settings\..\LMH0303USB1.SCHDOCDrawn By:

Title

SD303 / SD307 Evaluation Board for the LMH0303 / LMH0307

Number RevisionSize

Page 27

D D

C C

B B

A A

GND

R27

GND

HWBz

PA744PA645PA546PA447PA3

R26

VBUS

DVCC

HEADER 7X2

PE61PE72UVCC3Dm4Dp5UGnd6UCap7VBUS8PE39PB010MCK_PB111MOSI_PB212MISO_PB313PB414PB515PB6

AVCC

GND

AREF

GND

VCC

PA0 PA1 PA2

GND

R30

36.5K 1%

GND

JP2

759

1 2

1413

DVCC

GND

C14

4.7uF

64 63 62 61

PF0

PF1

PF2

PF3

PF4

PF5

PF6

PF7

53 52 51 50 49

DVCC

GND GND

R31

16.5K 1%

DVCC

ENABLE

C15

1uF

FD0

FD1

FD2

R29

16.5K 1%

SD/HDbar

MINI_USB_B

SHLD

DVCC DVCC DVCC DVCC DVCC DVCC

C24

4.7uF

GND

C25

100pF

GND GND

C26

4.7uF

C27

100pF

C28

4.7uF

GNDGNDGNDGNDGNDGND

C29

100pF

C16

18pF

C17

18pF

8MHz

SCL

SDA

4.7uF

0.033uF

GND

D14

BAS40DW05

A11A22K2

A34A4

C10

C11

Vout1Vin2NC13Sense

Bypass

GND

NC2

Ven

LP3981

C12

GND

DVCC

VCC

DVCC

CEBS0624V-G

IRLML6401PbF

1uF

GND

R51

2.74K 1%

R52

100K 5%

RSTObar

RSTIbar

FAULT

PB7

INT4_PE4

DVCC

INT5_PE5

RESETz

GND

VCC

GND

XTAL2

XTAL1

SCL_PD0

SDA_PD1

INT2_PD2

INT3_PD3

PD4

PD5

PD6

PD7

DAP

PC035PC136PC237PC338PC439PC540PC641PC7

PE033PE1

AT90USB1287

GND

GND GND

D13

A1GND2B

GND

C13

R50

52.3K 1%

GND

GTF0NLED

GTF1NLED

RTF0NLED

GND

TACTSW

GND

TACTSW

GND

TACTSW

Date: 2/3/2010 Sheet of

File: C : \Documents and Settings\..\LMH0303USB. SCHDOCDrawn By:

Title

SD303 / SD307 Evaluation Board for the LMH0303 / LMH0307

Number RevisionSize

GNDGNDGNDGNDGNDGND

GND

TACTSW

GND

TACTSW

GND

TACTSW

10K

R32

SAVE RESETbar ENABLE_SW SD/HDbar_SW MODE_SW RSTI_SW

R33

10K

C19 220nFC18 220nF

R34

10K

C20 1uF C21 1uF C22 1uF C23 1uF

R35

10K

DVCC

R36

10K

R37

10K

270

R49

300

270

R48

R47

RTF1NLED

300

270

R44

R46

270

R45

RTF1PLED

R43

GTF1PLED

GTF0PLED

RTF0PLED

GCDLED

RCDLED

300

270

R42

R41

R38

R40

R39

BiColored LED

GK3RK

RSTIbar

BiColored LED

GK3RK

RSTObar

BiColored LED

GK3RK

MODE

BiColored LED

GK3RK

SD/HDbar

BiColored LED

GK3RK

Enable

BiColored LED

GK3RK

DVCC

USB Power

Page 28

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Texas Instruments: SD303EVK/NOPB SD307EVK/NOPB

National Semiconductor SD303EVK, LMH0303, LMH0307, SD307EVK User Manual

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