ZL50060 ZARLINK [Zarlink Semiconductor Inc], ZL50060 Datasheet - Page 21

• Manufacturer Part Number: ZL50060
• Description: 16 K-Channel Digital Switch with High Jitter Tolerance, Per Stream Rate Conversion (2, 4, 8, 16, or 32 Mbps), and 64 Inputs and 64 Outputs
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

1.0
The ZL50060/1 has a maximum capacity of 16,384 input channels and 16,384 output channels. This is calculated
from the maximum number of streams and channels: 64 input streams (32 Backplane, 32 Local) at 16.384 Mbps
and 64 output streams (32 Backplane, 32 Local) at 16.384 Mbps.
A typical mode of operation is to separate the input and output streams to form a unidirectional switch, as shown in
Figure 4 below.
In this system, the Backplane and Local input streams are combined, and the Backplane and Local output streams
are combined, so that the switch appears as a 64 input stream by 64 output stream switch. This gives the maximum
16,384 x 16,384 channel capacity.
Often a system design needs to differentiate between a Backplane and a Local side, or it needs to put the switch in
a bi-directional configuration. In this case, the ZL50060/1 can be used as shown in Figure 5 to give 8,192 x 8,192
channel bi-directional capacity.
In this system setup, the chip has a capacity of 8,192 input channels and 8,192 output channels on the Backplane
side, as well as 8,192 input channels and 8,192 output channels on the Local side. Note that some or all of the
output channels on one side can come from the other side, e.g., Backplane input to Local output switching.
Note that in either configuration, the Backplane port can be operated in the Backplane 32Mbps Mode, providing
512 channels on each of the 16 available input and output streams (BSTi0-15 and BSTo0-15) operating at a data
rate of 32.768 Mbps, in conjunction with the Local streams (LSTi0-31 and LSTo0-31) operating at 16.384 Mbps
(Local Non-32 Mbps Mode) or in conjunction with the Local streams (LSTi0-15 and LSTo0-15) operating at
32.768 Mbps (Local 32 Mbps Mode). Similarly, the Local port can be operated in the Local 32 Mbps Mode,
providing 512 channels on each of the 16 available input and output streams (LSTi0-15 and LSTo0-15) operating at
a data rate of 32.768 Mbps, in conjunction with the Backplane streams (BSTi0-31 and BSTo0-31) operating at
16.384 Mbps (Backplane Non-32 Mbps Mode) or in conjunction with the Backplane streams (BSTi0-15 and
BSTo0-15) operating at 32.768 Mbps (Backplane 32 Mbps Mode).
Unidirectional and Bi-directional Switching Applications
BACKPLANE
Figure 4 - 16,384 x 16,384 Channels (16 Mbps), Unidirectional Switching
INPUT
Figure 5 - 8,192 x 8,192 Channels (16 Mbps), Bi-directional Switching
32 streams
32 streams
32 streams
BSTi0-31
32 streams
BSTo0-31
BSTi0-31
LSTi0-31
Zarlink Semiconductor Inc.
ZL50060/1
ZL50060/1
ZL50060/1
21
32 streams
32 streams
LSTo0-31
32 streams
LSTi0-31
32 streams
BSTo0-31
LSTo0-31
OUTPUT
LOCAL
Data Sheet