參數(shù)資料
型號(hào)： 79RC32351-133DH
廠商： Integrated Device Technology, Inc.
英文描述： IDT Interprise Integrated Communications Processor
中文描述： IDT的洽談會(huì)集成通信處理器
文件頁(yè)數(shù)： 34/42頁(yè)
文件大小： 560K
代理商： 79RC32351-133DH
34 of 42
May 25, 2004
IDT 79RC32351
Phase-Locked Loop (PLL)
The processor aligns the pipeline clock, PClock, to the master input clock (CLKP) by using an internal phase-locked loop (PLL) circuit that gener-
ates aligned clocks. Inherently, PLL circuits are only capable of generating aligned clocks for master input clock (CLKP) frequencies within a limited
range.
PLL Analog Filter
The storage capacitor required for the Phase-Locked Loop circuit is contained in the RC32351. However, it is recommended that the system
designer provide a filter network of passive components for the PLL power supply.
V
CC
P (PLL circuit power) and V
SS
P (PLL circuit ground) should be isolated from V
CC
Core (core power) and V
SS
(common ground) with a filter
circuit such as the one shown in Figure 19.
Because the optimum values for the filter components depend upon the application and the system noise environment, these values should be
considered as starting points for further experimentation within your specific application.
Figure 19 PLL Filter Circuit for Noisy Environments
Recommended Operating Temperature and Supply Voltage
Capacitive Load Deration
Refer to the
RC32355 IBIS Model
which can be found at the IDT web site (www.idt.com).
Grade
Temperature
Vss
1
VssP
5
V
cc
I/O
2
V
cc
Core
3
V
cc
P
4
Commercial
0
°
C to +70
°
C Ambient
0V
3.3V±5%
2.5V±5%
1
Vss supplies a common ground.
2
VccI/O is the I/O power.
3
VccCore is the internal logic power.
4
VccP is the phase lock loop power.
5
VssP is the phase lock loop ground.
Table 15 Temperature and Voltage
10
μ
F
0.1
μ
F
100 pF
Vcc
Vss
VccP
VssP
10 ohm
1
1.
This resistor may be required in noisy circuit environments.
RC32351
相關(guān)PDF資料
PDF描述
79RC32355-133DH Communications Processor
79RC32355-133DHI Communications Processor
79RC32T355-133DH IDT Interprise Integrated Communications Processor
79RC32T355-133DHI IDT Interprise Integrated Communications Processor
79RC32T355-150DH IDT Interprise Integrated Communications Processor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
79RC32355 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:Communications Processor
79RC32355133DH 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:Communications Processor
79RC32355-133DH 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:Communications Processor
79RC32355133DHI 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:Communications Processor
79RC32355-133DHI 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:IDT Interprise Integrated Communications Processor
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