QA-660 Digital Music Transport User
’
s Guide QLS -HiFi
3
1.4.2 Rear Panel
1- IIS/I2S Digital Output.
2- Optical Digital Output.
3- EBU/AES Digital Output.
4- RCA Coaxial Digital Output.
5- BNC1 Coaxial Digital Output. 6- BNC2 Coaxial Digital Output (Current Mode Output).
7- Power Input Interface (Including fuse, Power switch).
Note:
BNC2 coaxial digital output belongs to current output mode; it needs 75 ohms resistance
to ground from receiving end which can restore current into voltage signal. Therefore, maybe
there are less than 10% DAC cannot lock signals normally due to the absence of such input
resistance. If your equipment belongs to this type, you can choose the other two coaxial output.
There are subtle differences among the three coaxial output in tones, you can choose the port
you like after comparison.
1.4.3. IIS/I2S Interface
①
-DATA
②
-GND
③
-LRCK
④
-GND
⑤
-BCK
⑥
-GND
⑦
-MCLK
⑧
-GND
Note:
When you homemade IIS cable, super 5 category twisted pair cable is recommended,
every signal line should be twisted together with one GND. At the same time, we do not
recommend the length of 12S line more than 50CM.
1.4.4 Display Screen
