參數(shù)資料
型號(hào)： ZL50018QCC
廠商： ZARLINK SEMICONDUCTOR INC
元件分類： 路由/交換
英文描述： 2 K Digital Switch with Enhanced Stratum 3 DPLL
中文描述： TELECOM, DIGITAL TIME SWITCH, PQFP256
封裝： 28 X 28 MM, 1.40 MM HEIGHT, MS-026BJC, LQFP-256
文件頁(yè)數(shù)： 34/136頁(yè)
文件大?。?/td> 1448K
代理商： ZL50018QCC
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ZL50018
Data Sheet
34
Zarlink Semiconductor Inc.
For example, if Stream 4 Channel 2 is switched to Stream 5 Channel 9 with variable delay, the data will be output in
the same 125
μ
s frame. Contrarily, if Stream 6 Channel 1 is switched to Stream 9 Channel 3, the information will
appear in the following frame.
Figure 19 - Data Throughput Delay for Variable Delay
8.2 Constant Delay Mode
In this mode, frame integrity is maintained in all switching configurations. The delay though the switch is 2 frames -
Input Channel + Output Channel. This can result in a minimum of 1 frame + 1 channel delay if the last channel on a
stream is switched to the first channel of a stream. The maximum delay is 3 frames - 1 channel. This occurs when
the first channel of a stream is switched to the last channel of a stream. The constant delay mode is available for all
output channels.
The data throughput delay is expressed as a function of ST-BUS/GCI-Bus frames, input channel number (m) and
output channel number (n). The data throughput delay (T) is:
T = 2 frames + (n - m)
The constant delay mode is controlled by V/C (bit 14) in the Connection Memory Low when CMM = 0. When this bit
is set low, the channel is in constant delay mode. If VAREN (bit 4) in the Control Register (CR) is set (to enable
variable throughput delay on a chip-wide basis), the device can still be programmed to operate in constant delay
mode.
m = input channel number
n = output channel number
n-m <= 0
0 < n-m < 7
n-m = 7
n-m > 7
STio < STi
STio >= STi
T = Delay between input and output
1 frame - (m-n)
1 frame + (n-m)
n-m
Table 4 - Delay for Variable Delay Mode
L-2 L-1 CH0CH1CH2CH3
L-2 L-1 CH0CH1CH2CH3
L-2 L-1 CH0CH1CH2CH3
L-2 L-1 CH0CH1CH2CH3
L-2 L-1 CH0CH1CH2CH3
L-2 L-1 CH0CH1CH2CH3
L-2 L-1 CH0CH1CH2CH3
L-2 L-1 CH0CH1CH2CH3
CH4CH5CH6
CH4CH5CH6
CH4CH5CH6
CH4CH5CH6
CH7CH8CH9
CH7CH8CH9
CH7CH8CH9
CH7CH8CH9
STi4
CH2
STio5
CH9
STi6
CH1
STio9
CH3
Frame N
Frame N + 1
L = last channel = 31, 63, 127, or 255 for 2.048 Mbps, 4.096 Mbps, 8.192 Mbps, or 16.384 Mbps respectively.
相關(guān)PDF資料
PDF描述
ZL50019 Enhanced 2 K Digital Switch with Stratum 4E DPLL
ZL50019GAC Enhanced 2 K Digital Switch with Stratum 4E DPLL
ZL50019QCC Enhanced 2 K Digital Switch with Stratum 4E DPLL
ZL50022 Enhanced 4 K Digital Switch with Stratum 4E DPLL
ZL50022GAC Enhanced 4 K Digital Switch with Stratum 4E DPLL
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZL50018QCG1 制造商:Microsemi Corporation 功能描述:PB FREE 2K+ RATE CONVERSION AND S3 DPLL - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM SWITCH 2K-CH ENH 256LQFP
ZL50019 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Enhanced 2 K Digital Switch with Stratum 4E DPLL
ZL50019_06 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Enhanced 2 K Digital Switch with Stratum 4E DPLL
ZL50019GAC 制造商:Microsemi Corporation 功能描述:2K WITH RATE CONVERSION AND S4 - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM SWITCH 2K-CH ENH 256PBGA 制造商:Microsemi Corporation 功能描述:IC TDM SWITCH 2K-CH ENH 256PBGA
ZL50019GAG2 制造商:Microsemi Corporation 功能描述:PB FREE 2K WITH RATE CONVERSION+S4E DPLL 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K 1.8V/3.3V 256BGA - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM SWITCH 2K-CH ENH 256PBGA 制造商:Microsemi Corporation 功能描述:IC TDM SWITCH 2K-CH ENH 256PBGA
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