参数资料
型号: ISPPAC-CLK5312S-01T48I
厂商: Lattice Semiconductor Corporation
文件页数: 16/56页
文件大小: 0K
描述: IC BUFFER FANOUT ISP UNIV 48TQFP
标准包装: 250
系列: ispClock™
类型: 时钟发生器,扇出配送,零延迟缓冲器
PLL: 带旁路
输入: HSTL,LVCMOS,LVDS,LVPECL,LVTTL,SSTL
输出: eHSTL,HSTL,LVCMOS,LVTTL,SSTL
电路数: 1
比率 - 输入:输出: 2:12
差分 - 输入:输出: 是/无
频率 - 最大: 267MHz
除法器/乘法器: 是/无
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-TQFP(7x7)
包装: 托盘
Lattice Semiconductor
ispClock5300S Family Data Sheet
23
Figure 17. LVDS Input Receiver Conguration
Note that while a oating 100Ω resistor forms a complete termination for an LVDS signal line, additional circuitry
may be required to satisfactorily terminate a differential LVPECL signal. This is because a true bipolar LVPECL out-
put driver typically requires an external DC ‘pull-down’ path to a VTERM termination voltage (typically VCC-2V) to
properly bias its open emitter output stage. When interfacing to an LVPECL input signal, the ispClock5300S inter-
nal termination resistors should not be used for this pull-down function, as they may be damaged from excessive
current. The pull-down should be implemented with external resistors placed close to the LVPECL driver
Figure 18. LVPECL Input Receiver Conguration
Please note that while the above discussions specify using 50Ω termination impedances, the actual impedance
required to properly terminate the transmission line and maintain good signal integrity may vary from this ideal. The
REFA_REFP
REFB_REFN
Differential
Receiver
VTT_REFA
Close
VTT_REFB
Circ
u
it
Board
Connection
ispClock5300S
50
+
LVDS
Driver
Differential
Receiver
REFA-VTT
RPD
VTERM
REFB-VTT
Circ
u
it
Board
Connection
ispClock5300S
Close
50
+
LVPECL
Driver
REFA_REFP
REFB_REFN
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ISPPACCLK5312S-01T48I 制造商:LATTICE 制造商全称:Lattice Semiconductor 功能描述:In-System Programmable, Zero-Delay, Universal Fan-Out Buffer, Single-Ended
ISPPACCLK5312S-01T64C 制造商:LATTICE 制造商全称:Lattice Semiconductor 功能描述:In-System Programmable, Zero-Delay, Universal Fan-Out Buffer, Single-Ended
ISPPACCLK5312S-01T64I 制造商:LATTICE 制造商全称:Lattice Semiconductor 功能描述:In-System Programmable, Zero-Delay, Universal Fan-Out Buffer, Single-Ended
ispPAC-CLK5312S-01TN48C 功能描述:时钟驱动器及分配 ISP 0 Delay Unv Fan- Out Buf-Sngl End RoHS:否 制造商:Micrel 乘法/除法因子:1:4 输出类型:Differential 最大输出频率:4.2 GHz 电源电压-最大: 电源电压-最小:5 V 最大工作温度:+ 85 C 封装 / 箱体:SOIC-8 封装:Reel
ISPPACCLK5312S-01TN48C 制造商:LATTICE 制造商全称:Lattice Semiconductor 功能描述:In-System Programmable, Zero-Delay, Universal Fan-Out Buffer, Single-Ended