ZL50057 ZARLINK [Zarlink Semiconductor Inc], ZL50057 Datasheet - Page 52

• Manufacturer Part Number: ZL50057
• Description: 12 K-Channel Digital Switch with High Jitter Tolerance, Per Stream Rate Conversion (2, 4, 8, 16, or 32 Mbps), and 48 Inputs and 48 Outputs
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

When the input channel delay is enabled, the data throughput delay is: T = 3 frames - α + (m - n). Assuming that m
(input channel) and n (output channel) are equal, we have the figure below, in which the delay between the input
data being written and the output data being read is less than 3 frames.
Assuming that n (output channel) is greater than m (input channel), we have the figure below, in which the delay
time between the input channel being written and the output channel being read could exceed 3 frames, if the
distance between n and m is greater than the input channel delay.
Assuming that n (output channel) is less than m (input channel), we have the figure below, in which the delay time
between the input channel being written and the output channel being read will be less than 3 frames.
Serial Output Data
Serial Output Data
Serial Output Data
Serial Input Data
Serial Input Data
Serial Input Data
Figure 22 - Data Throughput Delay with Input Channel Delay Enabled, Input Ch13 Switched to
Figure 20 - Data Throughput Delay with Input Channel Delay Enabled, Input Ch0 Switched to
Figure 21 - Data Throughput Delay with Input Channel Delay Enabled, Input Ch0 Switched to
(α > 0)
(α > 0)
(α > 0)
Frame
Frame
Frame
Frame N-1 Data
Frame N-1 Data
Frame N-1 Data
Frame N-3 Data
Frame N-3 Data
Frame N-3 Data
Frame N
Frame N
Frame N
Frame N-2 Data
Frame N-2 Data
Frame N-2 Data
Input Channel Delay (from 1 to max # of channels)
Input Channel Delay (from 1 to max # of channels)
Input Channel Delay (from 1 to max # of channels)
Frame N Data
Frame N Data
Frame N Data
Frame N+1
Frame N+1
Frame N+1
Zarlink Semiconductor Inc.
ZL50057/8
Frame N+1 Data
Frame N+1 Data
Frame N+1 Data
Frame N-1 Data
Frame N-1 Data
Frame N-1 Data
Frame N+2
Frame N+2
Frame N+2
Output Ch13
Output Ch0
Output Ch0
52
3 Frames - α + 0
Frame N+2 Data
Frame N+2 Data
Frame N+2 Data
Frame N Data
Frame N Data
Frame N Data
Frame N+3
Frame N+3
Frame N+3
3 Frames - α + (n - m)
3 Frames - α + (n - m)
Frame N+1 Data
Frame N+1 Data
Frame N+1 Data
Frame N+3 Data
Frame N+3 Data
Frame N+3 Data
Frame N+4
Frame N+4
Frame N+4
Frame N+4 Data
Frame N+4 Data
Frame N+4 Data
Frame N+4 Data
Frame N+4 Data
Frame N+4 Data
Frame N+2 Data
Frame N+2 Data
Frame N+2 Data
Frame N+5
Frame N+5
Frame N+5
Data Sheet