tag:blogger.com,1999:blog-52657438435240478952024-03-13T15:05:27.710-07:00YC5OZK / JZ04AMByc5ozkhttp://www.blogger.com/profile/05265381631419634645noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-5265743843524047895.post-19754542345792778542014-12-27T07:54:00.001-08:002017-09-11T08:23:17.932-07:00DDS<!--[if !mso]>
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<br />
<div class="MsoNormal" style="text-align: justify;">
<span style="font-size: large;"><span lang="IN">Direct Digital Synthesis (DDS) adalah suatu proses digital untuk menghasilkan
sinyal yang frekuensi dan fasanya dapat diubah. Perhatikan blok diagram DDS
dibawah ini.</span></span></div>
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<br /></div>
<div class="MsoNormal" style="text-align: justify;">
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjzuaocSwWh2BIA8_OLn1wYFmHgt8W9rX18wudYzf1ysevV8SOWitExs1ryyFanfj0K7tCacxFyatxoECjO8InX7Vq_fnHLdCmobBf_cGiYFSB5gJzDyvvRdId5v0C9ur-uhQK1dxEXLwA/s1600/DDS3.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="177" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjzuaocSwWh2BIA8_OLn1wYFmHgt8W9rX18wudYzf1ysevV8SOWitExs1ryyFanfj0K7tCacxFyatxoECjO8InX7Vq_fnHLdCmobBf_cGiYFSB5gJzDyvvRdId5v0C9ur-uhQK1dxEXLwA/s1600/DDS3.jpg" width="400" /></a></div>
<div class="MsoNormal" style="text-align: justify;">
<br /></div>
<div class="MsoNormal" style="text-align: justify;">
<br /></div>
<span style="font-size: large;">
</span><br />
<div class="MsoNormal">
<span style="font-size: large;"><span style="font-family: "times new roman" , "serif"; line-height: 107%;"></span></span><span style="font-size: large;"><span lang="IN" style="font-family: "times new roman" , "serif"; line-height: 107%;">Ref Clock adalah
sinyal referensi yang digunakan sebagai clock input dari Phase Accumulator dan
D/A Converter. Phase Accumulator difungsikan sebagai up counter yang mempunyai
data awal N (Data Tunning Word). Setelah data accumulator berlogika satu semua
(penuh), nilai accumulator akan reset ke
N. Waktu dari accumulator bernilai N sampai penuh adalah satu perioda dan
dengan menggunakan Amplitude/Cos Conv Algorithm diubah menjadi satu gelombang.
D/A Converter berfungsi mengubah sinyal digital menjadi sinyal analog.</span></span>
</div>
<span style="font-size: large;"></span><br />
<div class="MsoNormal">
<span style="font-size: large;"><span lang="IN" style="font-family: "times new roman" , "serif"; line-height: 107%;">Frekuensi yang dihasilkan dari DDS dapat
dihitung dengan rumus</span></span></div>
<div class="separator" style="clear: both; text-align: center;">
</div>
<div class="MsoNormal">
<br /></div>
<span style="font-size: large;">
</span><br />
<div class="MsoNormal">
<span style="font-size: large;"><span lang="IN" style="font-family: "times new roman" , "serif"; line-height: 107%;"> F=(N x Clk)/(2^A)</span></span></div>
<span style="font-size: large;">
</span><br />
<div class="MsoNormal">
<span style="font-size: large;"><span lang="IN" style="font-family: "times new roman" , "serif"; line-height: 107%;">F=Frekuesi output</span></span></div>
<span style="font-size: large;">
</span><br />
<div class="MsoNormal">
<span style="font-size: large;"><span lang="IN" style="font-family: "times new roman" , "serif"; line-height: 107%;">N=Tunning word</span></span></div>
<span style="font-size: large;">
</span><br />
<div class="MsoNormal">
<span style="font-size: large;"><span lang="IN" style="font-family: "times new roman" , "serif"; line-height: 107%;">Clk=Referesi clock</span></span></div>
<span style="font-size: large;">
</span><br />
<div class="MsoNormal">
<span style="font-size: large;"><span lang="IN" style="font-family: "times new roman" , "serif"; line-height: 107%;">A=Jumlah bit accumulator</span></span></div>
yc5ozkhttp://www.blogger.com/profile/05265381631419634645noreply@blogger.com0tag:blogger.com,1999:blog-5265743843524047895.post-19377579526058316502014-12-22T19:53:00.001-08:002017-09-12T07:25:50.416-07:00VARCO BESI BERKARAT<br />
<div style="text-align: justify;">
<span style="font-size: large;"><br /></span></div>
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yc5ozkhttp://www.blogger.com/profile/05265381631419634645noreply@blogger.com0tag:blogger.com,1999:blog-5265743843524047895.post-6212108704806421692014-12-18T06:22:00.000-08:002014-12-22T07:59:09.297-08:00MODIFIKASI RANGE FREKUENSI YAESU FT180 DARI 500KHZ SD 30MHZ <div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqiAuRcA8CmjiZXCMOF6s641PhKYcSbPcMVwnhAyShFeV6AjrzGTDVWD34_L6Jo2d0L8UJsZINPLMLuSweegajCAi1m9x9apRywxU3G78xMiFMIdtsk4sajU3r_x0Y9oL-e2HEJAjro8U/s1600/DDS2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;">1.8<img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqiAuRcA8CmjiZXCMOF6s641PhKYcSbPcMVwnhAyShFeV6AjrzGTDVWD34_L6Jo2d0L8UJsZINPLMLuSweegajCAi1m9x9apRywxU3G78xMiFMIdtsk4sajU3r_x0Y9oL-e2HEJAjro8U/s1600/DDS2.jpg" height="240" width="320" /></a></div>
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<span style="font-size: large;">Yaesu FT180 standarnya hanya dapat bekerja pada frekuensi 1,6 s/d 18 MHZ, yang dibatasi dengan band pass filter pada RF unit dan LPF unit. Pada gambar dibawah, yang ditandai dengan lingkaran merah adalah yang harus dimodifikasi untuk mendapatkan band 500KHZ s/d 30MHZ.</span></div>
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<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: large;">RF UNIT</span></td><td class="tr-caption" style="text-align: center;"><span style="font-size: large;"><br /></span></td><td class="tr-caption" style="text-align: center;"><span style="font-size: large;"><br /></span></td><td class="tr-caption" style="text-align: center;"><span style="font-size: large;"><br /></span></td><td class="tr-caption" style="text-align: center;"><span style="font-size: large;"><br /></span></td></tr>
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<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: large;">LPF UNIT</span></td></tr>
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yc5ozkhttp://www.blogger.com/profile/05265381631419634645noreply@blogger.com0tag:blogger.com,1999:blog-5265743843524047895.post-86413785807601549812014-12-18T05:53:00.002-08:002014-12-22T10:03:05.258-08:00MEMBUAT JADWAL SHOLAT DIGITAL<div class="separator" style="clear: both; text-align: center;">
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<a href="https://www.blogger.com/blogger.g?blogID=5265743843524047895" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSpt_AcMgJyrTSmkvso_RNSb3mt_5745gfXgbMiP3oxykqF0P-QL8g-Bbb76txJXlPn6TGdQ7-zrtC1syxjgiNdv5pj0NlrOzwy043uNO4LX5MMXtl2oNYZWLWUboYBPD-fe5kKVPm_i0/s1600/jam3.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSpt_AcMgJyrTSmkvso_RNSb3mt_5745gfXgbMiP3oxykqF0P-QL8g-Bbb76txJXlPn6TGdQ7-zrtC1syxjgiNdv5pj0NlrOzwy043uNO4LX5MMXtl2oNYZWLWUboYBPD-fe5kKVPm_i0/s1600/jam3.jpg" /></a></div>
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<span style="font-size: large;">Yang saya buat ini menggunakan database IKMI Riau. Atau anda bisa juga menggunakan rumus astronomi yang dapat memperkecil data program. RTC yang digunakan DS1307,dengan menggunakan uC AT89C52 yang mempunyai 8 kBytes flash memory. Jika kita menggunakan database jadwal sholat, berarti ada 5x365 waktu sholat. Untuk memperkecilnya hilangkan data yang sama, dan gunakan jenis data character.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_gcJEmX8b3Jxo8H93551EI_pwSZRRvyY1F9qv2pOPCb9887Cw8EiblGgcvNS6acaOdR6I6UVycdy7ohxJL_V45MWPZf8-nXq_-qVX-4NyUR4UKUnDQwZM0B68wksT7aJYTQfXpsuqALA/s1600/jadwalpcb.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_gcJEmX8b3Jxo8H93551EI_pwSZRRvyY1F9qv2pOPCb9887Cw8EiblGgcvNS6acaOdR6I6UVycdy7ohxJL_V45MWPZf8-nXq_-qVX-4NyUR4UKUnDQwZM0B68wksT7aJYTQfXpsuqALA/s1600/jadwalpcb.jpg" height="315" width="400" /></a></div>
yc5ozkhttp://www.blogger.com/profile/05265381631419634645noreply@blogger.com0tag:blogger.com,1999:blog-5265743843524047895.post-34140015794593030232014-12-18T04:29:00.001-08:002017-09-11T10:14:37.570-07:00DDS AD9850<div style="text-align: justify;">
<span style="font-size: large;">Dari oscilator hartley atau colpit dengan penstabil frekuensi PLL(Phase Lock Loop), FLL (Frequency Lock Loop), dan sekarang sudah ada pembangkit signal full digital, yaitu DDS (Direct Digital Synthesis). meskipun spurious ne akeh. Apa itu <a href="http://yc5ozk.blogspot.com/2014/12/dds.html">DDS ?</a></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQu_7epZnAjwAK0W7-MlevlPlcfFovW0-k7heiKzHdND8sfr2vHCJM5mZRlvE4AVZb8-iRLEQeCTTKzqq3C6srznautvVu28m7MBbCUxYBSs8bbUmuu3DGNEhrdLHmHo4ZD_qotfj8ZFM/s1600/DDS1.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQu_7epZnAjwAK0W7-MlevlPlcfFovW0-k7heiKzHdND8sfr2vHCJM5mZRlvE4AVZb8-iRLEQeCTTKzqq3C6srznautvVu28m7MBbCUxYBSs8bbUmuu3DGNEhrdLHmHo4ZD_qotfj8ZFM/s1600/DDS1.jpg" width="153" /></a></div>
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<span style="font-size: large;">Suatu acuumulator/register dengan penambahan data terjadi pada setiap clock dari suatu oscilator, yang menghitung mulai dari 0 sd seluruh bit dari accumulator 1, adalah waktu terbesar atau dengan kata lain frekuensi terkecil yang dapat dihasilkan oleh adanya accumulator tersebut atau dapat juga kita sebut frekuensi resolusi. Lalu bagai mana kita dapat mengubah frekuensi dari output DDS?...Pengisian data pada accumulator berarti kita memperpendek waktu accumulator penuh (kondisi bit semua 1) atau kita memperbesar frekuensi output, pada data IC kita kenal dengan Δ Phase. Waktu accumulator mencapai penuh merupakan satu perioda, kemudian pembentukan signal digunakan ADC (analog to digital converter)seperti gambar dibawah ini.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVcW5PmCuTCvnvIuApH5QnBdulkg8o2QPrneAr75jjk5cuVEZu3eoj9cUV1Mmme1AL91h2h2-fCjTAVDz4aq_dhmUt6-lqL3bVHw7H4stz7erz3Vs7QtTPqlqgqJ0gIuLQ5AF2dM77gH4/s1600/DDS3.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="143" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVcW5PmCuTCvnvIuApH5QnBdulkg8o2QPrneAr75jjk5cuVEZu3eoj9cUV1Mmme1AL91h2h2-fCjTAVDz4aq_dhmUt6-lqL3bVHw7H4stz7erz3Vs7QtTPqlqgqJ0gIuLQ5AF2dM77gH4/s1600/DDS3.jpg" width="320" /></a></div>
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<span style="font-size: large;">Pada AD9850 Δ Phase mempunyai 32 bit tuning word, dengan demikian frekuensi outputnya adalah</span><br />
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<span style="font-size: large;">fOUT = (Δ Phase × CLKIN)/(2^32).</span><br />
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<span style="font-size: large;">Untuk pengiriman data 32 bit secara paralel dilakukan sebanyak 5 x 1byte. Data Byte pertama (W0) =0, dimana kita mengaktifkan DDS dengan phasa 0. W1 (MSB) sd W4 merupakan data frekuensi.</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixPDbHHIViPjV4YkXQ5jIy_TjmY5ar-K4X2ZES5JDo-7Vnb88RfMzo951aiaZq1Gj4io24mkJFQThHrBTN8kSPxBMJWhag3AFGfxzL0tvbHGpijpKKBzyA_DLV8kDj6bsJJQ0G3zg3w80/s1600/DDSpcb.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="219" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixPDbHHIViPjV4YkXQ5jIy_TjmY5ar-K4X2ZES5JDo-7Vnb88RfMzo951aiaZq1Gj4io24mkJFQThHrBTN8kSPxBMJWhag3AFGfxzL0tvbHGpijpKKBzyA_DLV8kDj6bsJJQ0G3zg3w80/s1600/DDSpcb.jpg" width="320" /></a></div>
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yc5ozkhttp://www.blogger.com/profile/05265381631419634645noreply@blogger.com0tag:blogger.com,1999:blog-5265743843524047895.post-90752164240397653492009-01-27T08:22:00.000-08:002017-09-11T09:22:55.304-07:00tJawangDeN<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgug8_iSH-A2sO7vSZFqqfPyEzzzR8eQMuYOi5W9fYdssqCs_RREy1i7nhfzfTNyrAwGEYwpkmdWC7Lploz7JdqDhgmUoFIaKjLnc3yiBqi9NJcWlHIKWdr2saaSsRitq3XK7MztmA1rlc/s1600-h/PICT0004+copy.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5296010811321573058" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgug8_iSH-A2sO7vSZFqqfPyEzzzR8eQMuYOi5W9fYdssqCs_RREy1i7nhfzfTNyrAwGEYwpkmdWC7Lploz7JdqDhgmUoFIaKjLnc3yiBqi9NJcWlHIKWdr2saaSsRitq3XK7MztmA1rlc/s400/PICT0004+copy.jpg" style="cursor: pointer; display: block; height: 379px; margin: 0px auto 10px; text-align: center; width: 384px;" /></a><br />
<span style="font-size: large;"> Apa perlu di </span><a href="http://yc5ozk.blogspot.com/2014/12/dds-ad9850.html" style="font-size: x-large;" target="_blank">DDS ?</a>yc5ozkhttp://www.blogger.com/profile/05265381631419634645noreply@blogger.com0tag:blogger.com,1999:blog-5265743843524047895.post-80743896936651252952009-01-25T21:33:00.000-08:002014-12-27T08:17:07.678-08:00LAPORAN HARTA KEKAYAAN<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvXAf5xmZqSjZSUl1jOr7RU16kkwMltQpbXSqUvaykCJgFaRwjM3IdLuVK3aeHj0E2gQ2MWzlONR4uPtrtLvn3it2_tXIGLrKdqwXvko0HBa2NwYI2uyP8m1y4MG4-xzYyf1QBVpRdhyphenhypheno/s1600-h/botak.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvXAf5xmZqSjZSUl1jOr7RU16kkwMltQpbXSqUvaykCJgFaRwjM3IdLuVK3aeHj0E2gQ2MWzlONR4uPtrtLvn3it2_tXIGLrKdqwXvko0HBa2NwYI2uyP8m1y4MG4-xzYyf1QBVpRdhyphenhypheno/s400/botak.jpg" height="142" id="BLOGGER_PHOTO_ID_5295472285456454514" style="display: block; height: 285px; margin: 0px auto 10px; text-align: center; width: 400px;" width="200" /> </a><br />
<span style="color: red;"><span style="font-size: large;"><span style="font-size: x-large;"><b>+</b></span> ARIES 120<span style="font-size: x-large;"><b>+</b></span>YAESU FT180A</span></span>yc5ozkhttp://www.blogger.com/profile/05265381631419634645noreply@blogger.com2