參數(shù)資料
型號: DS26502LN+
廠商: Maxim Integrated Products
文件頁數(shù): 101/125頁
文件大?。?/td> 0K
描述: IC T1/E1/J1 64KCC ELEMENT 64LQFP
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 160
類型: BITS 元件,多路復用器
PLL:
主要目的: T1/E1
輸入: 時鐘
輸出: 時鐘
電路數(shù): 1
比率 - 輸入:輸出: 2:3
差分 - 輸入:輸出: 無/無
頻率 - 最大: 6.312MHz
電源電壓: 3.135 V ~ 3.465 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-LQFP(10x10)
包裝: 托盤
產(chǎn)品目錄頁面: 1430 (CN2011-ZH PDF)
DS26502
77 of 125
13. LINE INTERFACE UNIT (LIU)
The LIU in the DS26502 contains three sections: the receiver, which handles clock and data recovery; the
transmitter, which generates waveshapes and drives the network line; and the jitter attenuator. These three
sections are controlled by the line interface control registers (LIC1–LIC4), which are described below.
The DS26502 can switch among T1, J1, E1, and 6312kHz without changing any external circuits. A
different transformer is used for 64KCC networks. For a list of recommended transformer part numbers,
contact technical support at www.maxim-ic.com/support. Figure 13-1 shows a network connection using
minimal components. In this configuration the DS26502, using a fixed 120 external termination, can
connect to T1, J1, E1, 64KCC, or 6312kHz. The receiver can adjust the 120 termination to 100, 110
or 75. The transmitter can adjust its output impedance to provide high return loss characteristics for
75, 100, 110, and 120 lines. Other components may be added to this configuration to meet safety
and network protection requirements. This is covered in the Recommended Circuits section (Section
Figure 13-1. Basic Network Connection
TTIP
TRING
RTIP
RRING
DS26502
TRANSMIT
LINE
RECEIVE
LINE
10
μF
60
0.01
μF
BACKPLANE
CONNECTIONS
1:1
2:1
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DS26502LN+ 功能描述:計時器和支持產(chǎn)品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
DS26503 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:T1/E1/J1/64KCC BITS Element
DS26503_07 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:T1/E1/J1 BITS Element
DS26503DK 功能描述:時鐘和定時器開發(fā)工具 DS26503 Dev Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
DS26503L 功能描述:計時器和支持產(chǎn)品 E1-T1-J1 Bits Element RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel