参数资料
型号: XRT94L31IB
厂商: Exar Corporation
文件页数: 15/133页
文件大小: 0K
描述: IC MAPPER DS3/E3/STS-1 504TBGA
标准包装: 24
应用: 网络切换
接口: 总线
电源电压: 3.14 V ~ 3.47 V
封装/外壳: 504-LBGA
供应商设备封装: 504-TBGA(35x35)
包装: 托盘
安装类型: 表面贴装
XRT94L31
111
REV. 1.0.1
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
NOTE: The values for t9 and t10 are presented in
Tables 11, 12, 13 and 14.
1.3.4
Ingress Timing for DS3/E3 Applications
Table 11 presents information on the Timing parameters for the DS3/E3/STS-1 LIU Interface Signals (in the
Ingress Direction) for DS3/E3 Applications, and when the DS3/E3 Framer block has been configured to sample
the DS3/E3/STS_1_DATA_IN and DS3/E3/STS_1_NEG_IN signals upon the rising edge of DS3/E3/
STS_1_CLOCK_IN.
Table 12 presents information on the Timing parameters for the DS3/E3/STS-1 LIU Interface Signals (in the
Ingress Direction) for DS3/E3 Applications, and when the DS3/E3 Framer block has been configured to sample
the DS3/E3/STS_1_DATA_IN and DS3/E3/STS_1_NEG_IN signals upon the falling edge of DS3/E3/
STS_1_CLOCK_IN.
FIGURE 16. AN ILLUSTRATION OF THE WAVEFORMS OF THE DS3/E3/STS-1 SIGNALS THAT ARE INPUT TO THE DS3/
E3/STS-1 LIU INTERFACE (IN THE INGRESS DIRECTION)
TABLE 11: TIMING INFORMATION FOR THE INGRESS DS3/E3/STS-1 LIU INTERFACE FOR DS3/E3 APPLICATIONS
(RISING EDGE OF DS3/E3/STS_1_CLOCK_IN)
SYMBOL
DESCRIPTION
MIN.
TYP.
MAX.
t9
DS3/E3/STS_1_DATA_IN and DS3/E3/STS_1_NEG_IN to rising edge of
DS3/E3/STS_1_CLOCK_IN set-up time requirements
4ns
t10
Rising edge of DS3/E3/STS_1_CLOCK_IN to DS3/E3/STS_1_DATA_IN
and DS3/E3/STS_1_NEG_IN Hold time requirements
0ns
TABLE 12: TIMING INFORMATION FOR THE INGRESS DS3/E3/STS-1 LIU INTERFACE FOR DS3/E3
APPLICATIONS(FALLING EDGE OF DS3/E3/STS_1_CLOCK_IN)
SYMBOL
DESCRIPTION
MIN.
TYP.
MAX.
t9
DS3/E3/STS_1_DATA_IN and DS3/E3/STS_1_NEG_IN to falling edge of
DS3/E3/STS_1_CLOCK_IN set-up time requirements
4ns
t10
Falling edge of DS3/E3/STS_1_CLOCK_IN to DS3/E3/STS_1_DATA_IN and
DS3/E3/STS_1_NEG_IN Hold time requirements
0ns
DS3/E3/STS_1_DATA_IN
DS3/E3/STS_1_CLOCK_IN
DS3/E3/STS_1_NEG_IN
t9
t10
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