參數(shù)資料
型號(hào): IDT82V3355TFG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 130/135頁
文件大小: 0K
描述: IC PLL WAN SYNC ETH 64-TQFP
標(biāo)準(zhǔn)包裝: 1
類型: 時(shí)鐘/頻率發(fā)生器,多路復(fù)用器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum
輸入: CMOS,LVDS,PECL
輸出: CMOS,LVDS,PECL
電路數(shù): 1
比率 - 輸入:輸出: 3:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 622.08MHz
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-TQFP(10x10)
包裝: 托盤
其它名稱: 82V3355TFG
IDT82V3355
SYNCHRONOUS ETHERNET WAN PLL
Programming Information
94
May 19, 2009
T0_DPLL_LOCKED_BW_DAMPING_CNFG - T0 DPLL Locked Bandwidth & Damping Factor Configuration
T0_BW_OVERSHOOT_CNFG - T0 DPLL Bandwidth Overshoot Configuration
Address: 58H
Type: Read / Write
Default Value: 01101111
Bit
Name
Description
7 - 5
T0_DPLL_LOCKED_DAMPING[2:0]
These bits set the locked damping factor for T0 DPLL.
000: Reserved.
001: 1.2.
010: 2.5.
011: 5. (default)
100: 10.
101: 20.
110, 111: Reserved.
4 - 0
T0_DPLL_LOCKED_BW[4:0]
These bits set the locked bandwidth for T0 DPLL.
00XXX: Reserved.
01000: 0.1 Hz.
01001: 0.3 Hz.
01010: 0.6 Hz.
01011: 1.2 Hz.
01100: 2.5 Hz.
01101: 4 Hz.
01110: 8 Hz.
01111: 18 Hz. (default)
10000: 35 Hz.
10001: 70 Hz.
10010: 560 Hz.
10011 ~ 11111: Reserved.
Address: 59H
Type: Read / Write
Default Value: 1XXX1XXX
Bit
Name
Description
7
AUTO_BW_SEL
This bit determines whether starting or acquisition bandwidth / damping factor is used for T0 DPLL.
0: The starting and acquisition bandwidths / damping factors are not used. Only the locked bandwidth / damping factor is used
regardless of the T0 DPLL locking stage.
1: The starting, acquisition or locked bandwidth / damping factor is used automatically depending on different T0 DPLL locking
stages. (default)
6 - 4
-
Reserved.
3
T0_LIMT
This bit determines whether the integral path value is frozen when the T0 DPLL hard limit is reached.
0: Not frozen.
1: Frozen. It will minimize the subsequent overshoot when T0 DPLL is pulling in. (default)
2 - 0
-
Reserved.
7
6
5
43210
T0_DPLL_LOCK
ED_DAMPING2
T0_DPLL_LOCK
ED_DAMPING1
T0_DPLL_LOCK
ED_DAMPING0
T0_DPLL_LOC
KED_BW4
T0_DPLL_LOC
KED_BW3
T0_DPLL_LOC
KED_BW2
T0_DPLL_LOC
KED_BW1
T0_DPLL_LOC
KED_BW0
7
6
5
4
3
210
AUTO_BW_SEL
-
T0_LIMT
-
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