參數(shù)資料
型號: IDT82V3202NLG8
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 2/117頁
文件大?。?/td> 0K
描述: IC PLL WAN EBU SGL 68-VFQFPN
標(biāo)準(zhǔn)包裝: 2,500
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
輸出: CMOS,LVDS,PECL
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 無/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: 68-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 68-VFQFPN(10x10)
包裝: 帶卷 (TR)
其它名稱: 82V3202NLG8
IDT82V3202
EBU WAN PLL
Description
10
September 11, 2009
DESCRIPTION
The IDT82V3202 is an integrated, single-chip solution for the Syn-
chronous Equipment Timing Source for Stratum 3, SMC, 4E and 4
clocks in SONET / SDH equipments, DWDM and Wireless base station,
such as GSM, 3G, DSL concentrator, Router and Access Network appli-
cations.
The device supports three types of input clock sources: recovered
clock from STM-N or OC-n, PDH network synchronization timing and
external synchronization reference timing.
An input clock is automatically or manually selected for DPLL lock-
ing. The DPLL supports three primary operating modes: Free-Run,
Locked and Holdover. In Free-Run mode, the DPLL refers to the master
clock. In Locked mode, the DPLL locks to the selected input clock. In
Holdover mode, the DPLL resorts to the frequency data acquired in
Locked mode. Whatever the operating mode is, the DPLL gives a stable
performance without being affected by operating conditions or silicon
process variations.
If the DPLL outputs are processed by T0/T4 APLL, the outputs of the
device will be in a better jitter/wander performance.
The device provides programmable DPLL bandwidths: 0.1 Hz to 560
Hz in 11 steps and damping factors: 1.2 to 20 in 5 steps. Different set-
tings cover all SONET / SDH clock synchronization requirements.
A high stable input is required for the master clock in different appli-
cations. The master clock is used as a reference clock for all the internal
circuits in the device. It can be calibrated within ±741 ppm.
All the read/write registers are accessed only through an I2C pro-
gramming interface.
The device can be used typically in Line Card application.
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