Sd303evk / sd307evk lmh0303 / lmh0307 evaluation board user guide national semiconductor evk user manual february 3, 2010 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 cab...
Figure 1. Sd303/sd307 evaluation board sd303/sd307 evk user guide 2 of 27 rev 1.2 © 2010, national semiconductor corp..
Sdi input and sdo output the sdi input connectors (j1 and j2) are 50 Ω sma connectors. The sd303/sd307 is initially configured for 100Ω differential input. To configure the sd303/sd307 for 50 Ω single-ended input, remove r28 and place 49.9Ω 0402 resistors in r9 and r10. When using only one input, th...
Rsti ¯¯¯¯ the rsti ¯¯¯¯ push button switch controls rsti ¯¯¯¯ , and the rsti ¯¯¯¯ led shows its state. Rsti ¯¯¯¯ is used to reset the cable driver to its default register settings. The rsti ¯¯¯¯ led is green during normal operation (rsti ¯¯¯¯ = 1), and red when the cable driver is held in reset (rst...
Table 2. Sd303/sd307 led indicators led reference default after reset * function when green function when red function when off d1 power green power=1, board powered when flashing red, indicates the 3.3 vdc supply is connected but the usb is not board not powered d2 enable green enable=1, device ena...
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...
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 “programsational semiconductor corp\analog launchpad vx.X.X\analog launchpad”. The a...
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. Sd303/sd307 evk user guide 8 of 27 rev 1.2 © 2010, national semiconductor corp..
Figure 4. Lmh0307 main tab figure 5. Lmh0303 main tab sd303/sd307 evk user guide 9 of 27 rev 1.2 © 2010, national semiconductor corp..
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 pair...
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 con...
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-r...
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). Sd303/sd307 evk user guide 1...
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 s...
Figure 10. Lmh0307 sdo0 output waveform at 2.97 gbps sd303/sd307 evk user guide 15 of 27 rev 1.2 © 2010, national semiconductor corp..
Trouble shooting if the following window (figure 11) opens after starting the alp software, double check the hardware 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 unde...
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 15. Analog launchpad screen with demo mode off sd303/sd307 evk user guide 18 of 27 rev 1.2 © 2010, national semiconductor corp..
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 ...
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...
Orl plot - channel 0 – positive orl plot - channel 1 – positive sd303/sd307 evk user guide 21 of 27 rev 1.2 © 2010, national semiconductor corp..
Orl plot - channel 1 – negative smith chart – channel 0 – positive sd303/sd307 evk user guide 22 of 27 rev 1.2 © 2010, national semiconductor corp..
2.97gbps eye - channel 0 – positive – transition times 2.97gbps eye - channel 0 – positive – jitter sd303/sd307 evk user guide 23 of 27 rev 1.2 © 2010, national semiconductor corp..
270 mbps eye – channel 0 – negative – color bar - amplitude 270 mbps eye – channel 0 – positive – color bar – amplitude sd303/sd307 evk user guide 24 of 27 rev 1.2 © 2010, national semiconductor corp..
270 mbps eye – channel 1 – negative – color bar – amplitude 270 mbps eye – channel 1 – positive – color bar – amplitude schematic sd303/sd307 evk user guide 25 of 27 rev 1.2 © 2010, national semiconductor corp..
1 1 2 2 3 3 4 4 5 5 6 6 d d c c b b a a tit le num b er revi si o n si ze b da te : 10/7/200 9 s he et o f f ile : c :\d o cum ent s and s etti ng s\ .. \l m h 030 3u sb 1 .Sc h d o c dr aw n by : gn d rs t iba r sd a sc l en a b l e sd /h d b ar fa ul t rs t o ba r rcd l e d g c d led rt f 0 p l e ...
1 1 2 2 3 3 4 4 5 5 6 6 d d c c b b a a tit le num b er revi si o n si ze b da te : 2 /3 /2 0 1 0 sh ee t of f ile : c :\d o cum ent s and s etti ng s\ .. \l m h 030 3u sb .S c h do c dr aw n by : gnd pe 6 1 pe 7 2 uvcc 3 dm 4 dp 5 ugnd 6 uca p 7 vbus 8 pe 3 9 pb 0 10 mck_ p b 1 11 mosi _ p b 2 12 m...
Mouser electronics authorized distributor click to view pricing, inventory, delivery & lifecycle information: texas instruments : sd303evk/nopb sd307evk/nopb.
