miniDSP Ltd, Hong Kong /
/ Features and specifications subject to change without prior notice
16
3.3
I2S_TOSLINK
The
I2S_TOSLINK
firmware supports ten input channels and ten output channels at 44.1, 48, 88.2, 96, 176.4 and 192
kHz. Input channels 1-8 are received on J1 as I2S and input channels 9-10 are received on the optical input as
TOSLINK. All ten channels are made available to the computer over USB. Output channels 1-8 from the computer are
send to J1 as I2S while output channels 9-10 are sent to the optical output.
By default, the USBStreamer uses its internal clock source. If a TOSLINK input is provided, UAC2 Control Panel
(Windows) or Audio MIDI Setup (Mac) can select that input as the clock source. In that case, the I2S clocks will be
synthesized from the received clock.
Table 6.
I2S_TOSLINK
firmware pinouts
J1 pin
1
Out Ch 1-2
2
In Ch 1-2
3
Out Ch 3-4
4
In Ch 3-4
5
Out Ch 5-6
6
In Ch 5-6
7
Out Ch 7-8
8
In Ch 7-8
9
MCLK
10
BCLK
11
GND
12
LRCLK
Figure 6. I2S_TOSLINK firmware pinouts
