 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Product Specification MF601F File No Revision System Application Product Type Product Name Date Issued By Approved By Issued Date RDPS-MF008 R1 Mirco Filter For ADSL CPE Side Micro filter MF601F Jul. 03th, 2002 Sundi Lin- Design Engineer, R&D_1 sundi@ycl.com.tw Roger Wu - Manager, R&D_1 roger@ycl.com.tw YCL Electronics Co., Ltd. No.95, Feng Jen Road. Feng Shan City, Kaohsiung, Taiwan, R.O.C. This controlled document is the property of YCL Electronics Co., Ltd. Any duplication reproduction or transmission by unauthorized parties without the prior written permission of YCL Electronics Co., Ltd. is prohibited. Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 1 OF 10 Product Specification MF601F Table of contents Item Description 1. 2. 3. 4. Introduction Reference Abbreviations Technical requirements 4.1. Schematic 4.2 : Electrical Specification 4.3 : DC characteristic 4.4 : Test methodology 4.4.1 : Insertion loss 4.4.2 : Return loss Environmental condition 5.1. Resistibility to overvoltage and overcurrents 5.2. Climatic condition 5.2.1. Operating temperature 5.2.2. Storage and transport 5.2.3. Operating humidity Reliabilty conditions 6.1.Thermal shock 6.2. Temperature humidity exposure 6.3. Vibration test Mechanical condition ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Page 3 3 4 4 4 5 7 7 7 8 9 9 9 9 9 9 9 9 9 9 10 5 6 7. Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 2 OF 10 Product Specification MF601F 1. Introduction: The in-Line Micro filter has been specifically designed to implement the functionality of low pass filter in G.Lite system.G.Lite technology is similar to full rate ADSL in using DMT technology but operates at a lower data rate of up to 1.5Mbps downstream and 512Kbps upstream ,depending on line conditions and lengths.ADSL Lite is proposed as a lower speed version of ADSL that will eliminate the need for telecom to install and maintain a premises based POTS splitter. It was found necessary to include one or more low pass filters in series with the POTS terminals in order to reliably achieve maximum data rates. For POTS voice band service , the low pass filter provide protection from ADSL signal which may impact through non-line or other effects remote devices(handset, fax, voice band modem etc)and central office operation . For ADSL signal , it also provide protection from the high frequency transient and impedance effect that occur during POTS operation(ringing transients , on-hook,off-hook transient and so on). Because the POTS splitter connects directly to the subscriber loop media , it must also provide some protection for externally induced line hits or faults which could damage any attached equipment or endanger humans interacting with the installed equipment.The circuit protection will be provided mostly by standard central office line protection means and additional protection measures built into pots splitter to protect against line overstress which could damage the splitter itself. 2. Reference: Ref. 1 : Ref. 2 : Ref. 3 : ETS 300 001 ANSI T1E1.4 G.992.2 ITU-T K20 Attachment to Public Switched Telephone Network Network and Customer Installation Interface Resistibility of telecommunication switching Equipment to overvoltages and overcurrents Ref. 4 : ITU-T K21 Resistibility of subscribers terminal to overvoltage and overcurrents Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 3 OF 10 Product Specification MF601F 3. Abbreviations: ADSL CO CPE POTS RT ADSL-NT Asymmetric Digital Subscriber Line Central Office Customer Premise Equipment. Plain Old Telephone Service Remote Terminal Network termination of ADSL 4. Technical requirements: 4.1.Schematic: The following drawing illustrate the schematic of this product. Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 4 OF 10 Product Specification MF601F 4.2 : Electrical Specification : The low pass filter shall satisfy the following parametric limits with a complex impedance ZL shown in this table across the Line side of this device .The following requirement is specified for a single splitter and with three added parallel filters Electrical requirements Splitter parameter Frequency range Splitter bandwith Nominal voice band Billing tone Ringing frequency ADSL band Line Impedance ZL CO impedance ZTc RT impedance ZTr Modem impedance Operation voltage voice band Nominal signal Billing tone Ringing signal DC voltage Max. AC voltage Max. differential Current voice band Loop current Transient current(on/off hook) DC Resistance DC Resistance Isolation resistance tip/ring Voice -band characteristic Insertion loss single filter Attenuation relative to 1004Hz 1004Hz 200Hz Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 5 OF 10 Product Specification MF601F Electrical requirements Splitter parameter Insertion loss with three added parallel filters Attenuation relative to 1004Hz Insertion loss with two added parallel filters Delay distortion Return loss single filter 1004Hz 200Hz Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 6 OF 10 Product Specification MF601F 4.3 : DC characteristic : All requirement of this specification can be met in the presence of all POTS loop currents from 0mA to 100mA. This in line filter can pass POTS tip-to-ring dc voltages of 0V to 105V and ringing signals of 40V to 150Vrms at any frequency from15.3Hz to 68Hz with a dc component in the range from 0V to 105V. The DC resistance from tip-to-ring at the line port interface with the phone interface shorted, shall be less than or equal to 15 ohms for one splitter.The DC resistance from tip-to-ground and from ring-to-ground at the POTS interface with the U-R interface open shall be greater than or equal to 5 Megohms. The ground point shall be local building or green wire ground. As an objective , the dc resistance should exceed 10M. 4.4 : Test method : 4.4.1 : Insertion loss : The insertion loss of a device connected into a given transmission system is defined as the ratio,expressed in dB, of the load power available(before and after insertion ) delivered to the output network beyond the point of insertion at a given frequency.In general , the insertion loss is defined as the ratio, expressed in dB of the power delivered to a load with the circuit in place and the power delivered to a load without the circuit in place.The added insertion loss shall be measured using the test up in figure 3. For measuring POTS band insertion loss for single filter module also a single filter wit four added parallel load filters.General Insertion loss equation can be expressed as following Insertion loss = 20 log V2 / V1 dB where V1 = the measured voltage value of load without LPF in circuit. V2 = the measured voltage value of load with LPF in circuit. The test setup is shown in drawing below. : Remote POTS Splitter ZL Line LPF Phone Test Equipment Load#1 LPF ZL ZL is normal Termination Load#4 LPF in test set Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 7 OF 10 Product Specification MF601F 4.4.2 : Return loss : Return loss measure the amount of energy that is lost due to reflection which resulted from impedance mismatching at the interface. Return loss is essentially defined as the ratio of the power incident upon a given transmission system to the power reflected caused by impedance mismatch with respect to reference impedance at the interface between source and device.Return loss figure are a function of the impedance of the circuit involved and are therefore frequency dependent. These impedance must be closely maintained in order to reduce the possibility of undesirable reflection and echoes which in long distance circuit the telephone user or destroy the data being sent.To perform the return loss test ,open ,short,load calibration must be done prior measurement while the LCZ impedance Analyzer being selected in impedance mode. Return loss is general expressed in decibels. General Return loss equation as below: Return loss = 20 log ZL + ZM / ZL - ZMdB Where ZL = the reference impedance ZM = the measured impedance The test setup is shown in drawing below: Remote POTS Splitter ZL Line LPF Phone Test Equipment Load#1 LPF ZL Return loss reference Load#4 LPF impedance Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 8 OF 10 Product Specification MF601F 5. Environmental condition: 5.1. Resistibility to overvoltages and overcurrents: The splitter has to comply with requirements as per ITU-T K.21. 5.2. Climatic conditions: 5.2.1. Operating temperature: Application indoor Long time operation guarantee temperature ( 5 to 40 0C ) Short time operation guarantee temperature ( 0 to 50 0C ) ( According to ETS 300 019, class 3.2 ) 5.2.2. Storage and transport: Low ambient temperature - 20 0C High ambient temperature +85 0C ( According to MIL-STD-202 method 107 ) 5.2.3. Operation humidity: Long time operation guarantee humidity ( 5 to 85 % ) Short time operation guarantee humidity ( 5 to 90 % ) Short time : within 72 continuous hours and 15 days in a year 6. Reliability conditions: 6.1. Thermal shock : Temperature from -20 C to +85 C for 5 cycles (According to MIL-STD-202 , method 107) 6.2. Temperature humidity exposure : +50 C /95RH , 96hrs (According to MIL-STD-202 , method 103) 6.3. Vibration test : Random vibration , frequency 5-500Hz , sweep time :1 hr / axis / Force : 2.4grams (According to MIL-STD-202 , method 204) Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 9 OF 10 Product Specification MF601F 7. Mechanical condition : 1 Note : 1. Unit : mm 2. Unless otherwise specified , all tolerances are 0.5 mm Data sheet subject to change without notice RDPS-MF008(R1)07/03/2002 SHEET 10 OF 10 |
Price & Availability of MF601F
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |