參數(shù)資料
型號: MPC9993ACR2
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 1/11頁
文件大?。?/td> 0K
描述: IC PLL CLK DRIVER IDCS 32-LQFP
標準包裝: 2,000
類型: PLL 時鐘驅動器,動態(tài)時鐘開關
PLL: 帶旁路
輸入: LVPECL
輸出: LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 2:5
差分 - 輸入:輸出: 是/是
頻率 - 最大: 200MHz
除法器/乘法器: 是/無
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-LQFP
供應商設備封裝: 32-TQFP(7x7)
包裝: 帶卷 (TR)
DATASHEET
Intelligent Dynamic Clock Switch (IDCS)
PLL Clock Driver
MPC9993
MPC9993 REVISION 3 JANUARY 23, 2013
1
2013 Integrated Device Technology, Inc.
The MPC9993 is a PLL clock driver designed specifically for redundant clock
tree designs. The device receives two differential LVPECL clock signals from
which it generates 5 new differential LVPECL clock outputs. Two of the output
pairs regenerate the input signals frequency and phase while the other three
pairs generate 2x, phase aligned clock outputs.
Features
Fully Integrated PLL
Intelligent Dynamic Clock Switch
LVPECL Clock Outputs
LVCMOS Control I/O
3.3 V Operation
32-Lead LQFP Packaging
32-Lead Pb-Free Package Available
Functional Description
The MPC9993 Intelligent Dynamic Clock Switch (IDCS) circuit continuously
monitors both input CLK signals. Upon detection of a failure (CLK stuck HIGH or
LOW for at least 1 period), the INP_BAD for that CLK will be latched (H). If that
CLK is the primary clock, the IDCS will switch to the good secondary clock and
phase/frequency alignment will occur with minimal output phase disturbance.
The typical phase bump caused by a failed clock is eliminated. (See Application
Information section).
FA SUFFIX
32-LEAD LQFP PACKAGE
CASE 873A-04
AC SUFFIX
32-LEAD LQFP PACKAGE
Pb-FREE PACKAGE
CASE 873A-04
MPC9993
INTELLIGENT DYNAMIC
CLOCK SWITCH
PLL CLOCK DRIVER
CLK0
CLK1
Ext_FB
Sel_Clk
Dynamic
Switch
Logic
PLL
PLL_En
8
16
Qb0
Qb1
Qb2
Qa0
Qa1
MR
Man_Override
Clk_Selected
Inp1bad
Inp0bad
Alarm_Reset
800 – 1600 MHz
OR
Figure 1. Block Diagram
Product Discontinuance Notice – Last Time Buy Expires on (12/7/2013)
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