แต่จะหามาโมแทนครับ [HAHAHA]
เนื้อหาจาก
http://hifiduino.wordpress.com/2011/06/23/inside-fiio-d3/I was intrigued by this DAC based on the industry-leading Wolfson SPDIF receiver WM8805. According to the specifications it is capable of 24bit/192KHz operation and it only costs $30
Just like any good DIYer, the first thing I did was to take it apart?
Main ComponentsThe famous Wolfson WM8805 SPDIF receiver. Even though it is capable of muxing up to 8 SPDIF sources, it is configured in hardware mode and therefore it is configured to have a single input into the receiver. The device has a coax and a toslink input and these are selected with a single pole switch. Notice also the use of a seam-sealed crystal instead of the more traditional can (most likely for size).
The WM8805 interfaces a Cirrus Logic 4344 DAC (?344? indicates fixed I2S configuration). This DAC has pretty decent specs at 105 db SNR and -90 db THD+N, a cut above the DACs found in this price range (in reality, you can?t find any DACs at this price range which is a new low). The CS4344 DAC is also found in the Apple Airport Express 802.11n version.
The analog output of the DAC connects to a TI LMV358 opamp
You can see the I2S lines (the 4 diagonal traces), ready to be tapped?
ที่บอกถอดใจ เพราะราคามันไม่ถึงพันครับ เง้ออออ [phok]
ซื้อมาดึง I2S ไว้โมพ่วง DAC ตัวอื่นน่าจะสนุกดีครับ อิอิอิกำครับ
