參數(shù)資料
型號： IDT82V3288
廠商： Integrated Device Technology, Inc.
英文描述： WAN PLL
中文描述： 廣域網(wǎng)鎖相環(huán)
文件頁數(shù)： 34/170頁
文件大?。?/td> 1053K
代理商： IDT82V3288
IDT82V3288
WAN PLL
Functional Description
34
June 22, 2006
The causes of Item 4, 9, 12, 15 - ‘the T0 selected input clock is
switched to another one’ - are: (The T0 selected input clock is disquali-
fied
AND
Another input clock is switched to)
OR
(In Revertive switch, a
qualified input clock with a higher priority is switched to)
OR
(The T0
selected input clock is switched to another one by External Fast selec-
tion or Forced selection).
Refer to
Table 13
for details about the input clock qualification for T0
path.
3.9.2
T4 SELECTED INPUT CLOCK VS. DPLL OPERATING
MODE
The T4 DPLL operating mode is controlled by the
T4_OPERATING_MODE[2:0] bits, as shown in
Table 16
:
When the operating mode is switched automatically, the operation of
the internal state machine is shown in
Figure 8
:
Figure 8. T4 Selected Input Clock vs. DPLL Automatic
Operating Mode
Notes to
Figure 8
:
1. Reset.
2. An input clock is selected.
3. (The T4 selected input clock is disqualified)
OR
(A qualified input
clock with a higher priority is switched to)
OR
(The T4 selected
input clock is switched to another one by Forced selection)
OR
(When T4 DPLL locks to the T0 DPLL output, the T4 selected
input clock is switched by setting the T0_FOR_T4 bit).
4. An input clock is selected.
5. No input clock is selected.
Refer to
Table 13
for details about the input clock qualification for T4
path.
Table 16: T4 DPLL Operating Mode Control
T4_OPERATING_MODE[2:0]
T4 DPLL Operating Mode
000
001
010
100
Automatic
Forced - Free-Run
Forced - Holdover
Forced - Locked
2
Locked mode
Holdover
mode
Free-Run mode
1
3
4
5
Table 17: Related Bit / Register in Chapter 3.9
Bit
Register
Address
(Hex)
T0_OPERATING_MODE[2:0]
T4_OPERATING_MODE[2:0]
T0_DPLL_OPERATING_MOD
E[2:0]
T0_DPLL_LOCK
T0_OPERATING_MODE
1
T0_OPERATING_MODE
2
T0_FOR_T4
T0_OPERATING_MODE_CNFG
T4_OPERATING_MODE_CNFG
53
54
OPERATING_STS
52
INTERRUPTS2_STS
0E
INTERRUPTS2_ENABLE_CNFG
T4_INPUT_SEL_CNFG
11
51
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相關代理商/技術參數(shù)
參數(shù)描述
IDT82V3288BC 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:WAN PLL
IDT82V3288BCG 功能描述:IC PLL WAN 3E STRATUM 2 208CABGA RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT
IDT82V3352 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:SYNCHRONOUS ETHERNET WAN PLL
IDT82V3355 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:SYNCHRONOUS ETHERNET WAN PLL
IDT82V3355DKG 功能描述:IC PLL WAN SYNC ETH 64-TQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT
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