參數(shù)資料
型號: IDT82V3280PFG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 137/171頁
文件大?。?/td> 0K
描述: IC PLL WAN SE STRATUM 2 100-TQFP
標(biāo)準(zhǔn)包裝: 1
類型: 時鐘/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: 14:9
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: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-TQFP(14x14)
包裝: 托盤
其它名稱: 82V3280PFG
IDT82V3280
WAN PLL
Programming Information
68
December 9, 2008
PHASE_ALARM_TIME_OUT_CNFG - Phase Lock Alarm Time-Out Configuration
Address: 08H
Type: Read / Write
Default Value: 00110010
Bit
Name
Description
7 - 6
MULTI_FACTOR[1:0]
These bits determine a factor which has a relationship with a period in seconds. A phase lock alarm will be raised if the T0
selected input clock is not locked in T0 DPLL within this period. If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, the
phase lock alarm will be cleared after this period (starting from when the alarm is raised). Refer to the description of the
TIME_OUT_VALUE[5:0] bits (b5~0, 08H).
00: 2 (default)
01: 4
10: 8
11: 16
5 - 0
TIME_OUT_VALUE[5:0]
These bits represent an unsigned integer. If the value in these bits is multiplied by the value in the MULTI_FACTOR[1:0]
bits (b7~6, 08H), a period in seconds will be gotten.
A phase lock alarm will be raised if the T0 selected input clock is not locked in T0 DPLL within this period. If the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, the phase lock alarm will be cleared after this period (starting from when the
alarm is raised).
76
54
3
2
1
0
MULTI_FACTO
R1
MULTI_FACTO
R0
TIME_OUT_VA
LUE5
TIME_OUT_VA
LUE4
TIME_OUT_VA
LUE3
TIME_OUT_VA
LUE2
TIME_OUT_VA
LUE1
TIME_OUT_VAL
UE0
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