六月初上市嘅發燒版 Raspberry Pi Compute Module 3

tleonard

CM3 同埋 CM3 Lite 兩個版本都唔值錢：

http://hken.rs-online.com/web/p/processor-microcontroller-development-kits/1232011/
https://www.digikey.hk/product-detail/en/raspberry-pi/CM3/1690-1016-ND/6605499

http://hken.rs-online.com/web/p/processor-microcontroller-development-kits/1232012/
https://www.digikey.hk/product-detail/en/raspberry-pi/CM3%20LITE/1690-1017-ND/6605500

官方嘅底板唔發燒都要萬四円：

http://jp.rs-online.com/web/p/processor-microcontroller-development-kits/1232013/

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真正主角係發燒版 Carrier Board，Ratoc RAL-KCM3MB01 賣緊 24,800 円，每個月有兩次 Rakuten 九折再加代購費／運費之後大約係一千六百幾蚊左右：

http://oliospec.com/shopdetail/000000005625
http://item.rakuten.co.jp/ratoc/ral-kcm3mb01/

除咗必須嘅 5V 電之外，仲可以分開 3.3V 同埋 1.8V 獨立供電：

http://weekly.ascii.jp/elem/000/000/396/396301/
http://av.watch.impress.co.jp/docs/news/1057377.html
http://www.phileweb.com/news/d-av/201705/15/41201.html
http://www.ratocaudiolab.com/product/kit/ral_kcm3mb01/index.html

Raspberry Pi Compute Module 3 専用 キャリアボード登場
https://shop.plaza.rakuten.co.jp/ratoc/diary/detail/201705150000/

Raspberry Pi Audio Cookbook #1-2
https://shop.plaza.rakuten.co.jp/ratoc/diary/detail/201705190000/

Raspberry Pi Audio Cookbook #2
https://shop.plaza.rakuten.co.jp/ratoc/diary/detail/201705240000/

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唔玩 USB 嘅話都可以加多五舊水訂 HiFiBerry Digi+ Pro：

http://www.sandal.tw/goods.php?id=811
http://www.ebay.com/itm/HiFiBerry-DIGI-Pro-/262992423089
https://www.amazon.com/HiFiBerry-digiplus-pro-Digi-Pro/dp/B01MZZRM1V

HiFiBerry Digi+ Pro
https://www.hifiberry.com/shop/boards/hifiberry-digi-pro/

HiFiBerry Digi+ Pro – our most advanced digital audio interface
https://www.hifiberry.com/blog/hifiberry-digi-pro-our-most-advanced-digital-audio-interface/

http://youtu.be/sD4Pnpd-nlc

greenleo

Ching

Any walk through?  5V PSU can be found easily.  Can 3V be used for 3.3V?  Where to find a clean 1.8V?

What're the input and output devices?  What OS, applications should be used?

ballgor

Is it true that its Ethernet is still sharing the same controller with the USBs?

張東尼@FB

Is it a good product?

tleonard

ballgor 發表於 2017-6-1 12:23
Is it true that its Ethernet is still sharing the same controller with the USBs?

官網話粒 LAN9514        包辦 USB hub 同埋 Ethernet，所以 CM3 都係玩 I2S 好過 USB Audio 喇：

本製品は「Raspberry Pi 3」互換の「LAN9514」チップを採用。有線LAN・USB High-Speed 4ポートHUBを搭載し、USB-DAC や、USBストレージ、WiFi ドングル、キーボード、マウスなど様々なUSB機器を接続することが容易です。

真係要駁 USB DDC／DAC 嘅話用 Sparky 加 USBridge 咪仲正，獨立供電俾塊 USB 子板點都好聲過 CM3 啦：

https://allo.com/sparky/usbridge.html

ballgor

tleonard 發表於 2017-6-21 16:25
官網話粒 LAN9514        包辦 USB hub 同埋 Ethernet，所以 CM3 都係玩 I2S 好過 USB Audio 喇：

入咗這個Odroid-C2. 行ARM 64bit, USB 同Ethernet有自己controller. 好重料！......HDMI2.0可播4K！

http://www.hardkernel.com/main/p ... _code=G145457216438

tleonard

greenleo 發表於 2017-5-25 11:59
Ching

Any walk through?  5V PSU can be found easily.  Can 3V be used for 3.3V?  Where to find a cle ...

我見外國嘅師兄係用 LT1963 嚟 DIY 線電：

http://www.diyaudio.com/forums/pc-based/271811-moode-audio-player-raspberry-pi-513.html#post4879105

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https://www.computeraudiophile.com/forums/topic/29553-my-very-mini-review-of-the-singxer-su-1-ddc/

改 Singxer SU-1 嘅師兄就鍾意三隻牌子嘅 voltage regulators：

http://www.ldovr.com/category-s/118.htm
https://www.belleson.com/store/index.php
http://sparkoslabs.com/discrete-voltage-regulators/

不過暫時睇落 Allo 嘅 Sparky SBC 好似正過 CM3。

greenleo

tleonard 發表於 2017-6-21 16:46
我見外國嘅師兄係用 LT1963 嚟 DIY 線電：

http://www.diyaudio.com/forums/pc-based/271811-moode-audi ...

謝。有冇人試過用A123的LiFePO4?會否比regulators 更好？

tleonard

greenleo 發表於 2017-6-21 17:24
謝。有冇人試過用A123的LiFePO4?會否比regulators 更好？

LT3045 嘅 noise 真係超低，不過就得 0.5A 輸出咁少。

A123 就比較多流嘢，上網訂嘅話唔知美國寄嚟香港有無問題呢？

http://www.batteryspace.com/A123-System-Nanophosphate-LiFePO4-26650-Rechargeable-Cell-3.2V-2500-mAh.aspx

如果有師兄識得整件咁嘅 ISO-PS 就正：

https://www.ciunas.biz/product-page/iso-ps

ISO-HUB 同 ISO REGEN 有少少相似嘅地方，佢就內置 LiFePO4 咁解：

https://www.ciunas.biz/product-page/iso-hub-internal-power
https://hifiwigwam.com/forum/topic/125612-j-kenny-iso-hub-review/

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原來 Allo USBridge 有獨立嘅 5V DC 輸入，餵 0.1A 俾佢已經夠飽，如果 USB DAC 唔食 ISO REGEN 嘅電就可以用同一件 5V 嘅 LPS-1 供電俾 USBridge 同埋 ISO REGEN 喇：

https://www.amazon.com/clouddrive/share/FUIonEVVyrNwWlsWDYBUW3lGie0OJX4Iw62SxVDDBDw

暫時未知 iFi 嘅 iGalvanic 3.0 會唔會係跑出嘅黑馬，299 美金嘅價錢亦都幾吸引，所以到時可能又會有驚喜。

由於 iFi 今次係 bus-powered 嘅緣故，用 5V 嘅 LPS-1 餵 USBridge 就等如餵埋俾 iGalvanic 3.0 咁方便，連條 Y 形嘅 DC 線都慳返。

tleonard

一月中開波，淨係一塊板就可以滿足到 Raspberry Pi 同埋 DAC 嘅需要，用料亦都係非常講究：

http://www.ldovr.com/product-p/mpower.htm
http://www.diyaudio.com/forums/pc-based/316150-mezzanine-power-board-raspberry-pi.html

hksarac

FB有人玩到5層高，唔知會唔會再加上去

tleonard

又有好嘢玩，今次真係做得到百分百線性穩壓：

https://twitter.com/dietpi_/status/821806723484778499
https://www.allo.com/sparky/usbridge-signature-pcb.html
https://www.allo.com/sparky/usbridge-signature-player.html

To lower the noise of the USB, we had to lower noise on EACH rail. In total, USBridge Sig uses more than 30 LDOs. Even the SD card power rail has a dedicated LDO. There are zero switching elements on board.

除咗國際運費好很貴之外都無乜投訴：

https://community.roonlabs.com/t/allo-usbridge-signature/77667
https://community.roonlabs.com/t/new-allo-usbridge-sig-is-it-roon-ready/78958
http://moodeaudio.org/forum/showthread.php?tid=1704&pid=13278
https://audiophilestyle.com/forums/topic/57258-allo-usbridge-signature/
https://www.diyaudio.com/forums/pc-based/329911-getting-allo-coms-katana-dac-40.html

tleonard

https://twitter.com/hansbeekhuyzen/status/1187746345882398721
https://www.facebook.com/hans.beekhuyzen/posts/2512777448812154

CKL

Ordered USBridge Signature, using old USBridge

CKL

Ordered USBridge Signature, using old USBridge

hokamyiu

Is CKL ching using the old Allo USBridge that is based on Sparky ?  Is it better sounding over the new USBridge that is based on Pi ?

Many thanks!
Keith

tleonard

不惜工本嘅玩法，可以話師兄有本事將 USBridge Signature 改到淋漓盡致，小弟心服口服：

https://audiophilestyle.com/forums/topic/57258-allo-usbridge-signature/page/49/?tab=comments#comment-1148796


SC切/恆溫晶振/49.152M/1024解碼/超低噪聲/飛秒級/秒殺CCHD/
https://item.taobao.com/item.htm?id=616020923145

SC切/恆溫晶振/解碼/45.1584M/超低噪聲/1024解碼/秒殺CCHD
https://item.taobao.com/item.htm?id=616534941643

低噪聲電源板/T3042並聯/可升級LT3045/適配恆溫晶振
https://item.taobao.com/item.htm?id=641823907828

CM4 to CM3 Adapter樹莓派計算模塊CM4 CM3+ CM3 CM3L轉接板
https://item.taobao.com/item.htm?id=650505496201
https://item.taobao.com/item.htm?id=650890897662

Pure Copper Heatsink Raspberry Pi Compute Module 4 Protective Case Passive Cooling Shell Metal Enclosure for Raspberry Pi CM4
https://www.aliexpress.com/item/1005002935486960.html