YCL MF604UK Datasheet
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 1 OF 14
File No RDPS-POTS048
Revision R1
System Application Asymmetric Digital Subscriber Line
Product Type Micro filter
Product Name MF604UK
Date Dec. 18th, 2002
Jay Hsieh - Design Engineer, R&D_1Issued By
arthur@ycl.com.tw
Roger Wu – Manager, R&D_1Approved By
roger@ycl.com.tw
Issued Date
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.
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 2 OF 14
Table of contents
Item Description Page
1. Introduction ----------------------------------------------- 3
2. Reference ----------------------------------------------- 3
3. Abbreviations ----------------------------------------------- 4
4.
Technical requirements
----------------------------------------------- 4
4.1. Schematic ----------------------------------------------- 4
4.2. Electrical specification ----------------------------------------------- 5
4.3. DC characteristic ----------------------------------------------- 7
4.4.Z
ATU-R,HF
definition ----------------------------------------------- 7
4.5. Test method ----------------------------------------------- 8
4.5.1. ADSL band insertion loss test setup ----------------------------------------------- 8
4.5.2. Voice band insertion loss test setup ----------------------------------------------- 9
4.5.3. Echo balance return loss from line
side test setup
----------------------------------------------- 10
4.5.4. Echo balance return loss from phone
side test setup
----------------------------------------------- 11
4.5.5. ADSL band bridging loss test setup
----------------------------------------------- 12
5 Environmental condition
----------------------------------------------- 13
5.1. Resistibility to overvoltage and
overcurrents
----------------------------------------------- 13
5.2. Climatic condition
----------------------------------------------- 13
5.2.1. Operating temperature
----------------------------------------------- 13
5.2.2. Storage and transport
----------------------------------------------- 13
5.2.3. Operating humidity
----------------------------------------------- 13
6 Reliabilty conditions
----------------------------------------------- 13
6.1.Thermal shock
----------------------------------------------- 13
6.2. Temperature humidity exposure
----------------------------------------------- 13
6.3. Vibration test
----------------------------------------------- 13
7. Mechanical condition ----------------------------------------------- 14
7.1. Dimension ----------------------------------------------- 14
7.2. Connector information ----------------------------------------------- 14
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 3 OF 14
1. Introduction:
The MF604UK is a “in – line” ( or distributed ) filter that has been specifically designed to
implement the functionality of low pass filter in POTS over ADSL application .
Asymmetric Digital Subscriber Line (ADSL) technology is dedicated , point to point , public
network access technology that allows multiple forms of data , voice , and video to be carried
over twisted-pair copper wire on the local loop between a network service provider’s(NSP’S)
central office and the customer site or within intra-campus / intra-building networks. Best of
all , ADSL delivers this high speed performance over existing copper telephone line all while
allowing traditional voice service to coexist without interruption through POTS low pass filters.
The MF604UK integrates low pass filter that blocks the high frequency energy from reaching
the POTS device and provides isolation from impedance effects of the POTS device on ADSL.
In addition , this filter will also attenuate any wideband impulse noise generated by the POTS
device due to the interruption of loop current(e.g. pulse dialing or on hook / off hook
transfer)Because the POTS filter connects directly to the subscriber loop media , it must
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 filter to protect against line overstress which
could damage the filter itself.
2. Reference:
Ref. 1 : ETS 300 001 Attachment to Public Switched Telephone Network
Ref. 2 : PTC 280 : 2001 Interim Telecom Requirements For Customer –
Connected ADSL Line Filters
Ref. 3 : K21 Resistibility of subscribers terminal to overvoltages
and overcurrents.
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 4 OF 14
3. Abbreviations:
ADSL Asymmetric Digital Subscriber Line
CO Central Office
CPE Customer Premise Equipment.
POTS Plain Old Telephone Service
RT Remote Terminal
4. Technical requirements:
4.1. Schematic:
The following drawing illustrate the schematic of this product.
Product Specification
MF604UK
Data sheet subject to change without notice RDPS-MF048(R1)12/18/2002
SHEET 5 OF 14
4.2. Electrical specification :
Electrical requirements
Splitter parameter
Range values
Frequency range
Splitter bandwith DC to 16KHz
Nominal voice band 0.3KHz to 3.4KHz
Billing tone 12KHz±80Hz
Ringing frequency 15.3Hz to 68Hz
ADSL band 30KHz to 1104KHz
Line Impedance ZL 370ohm + (620ohm // 310nF)
CO impedance ZTc 370ohm + (620ohm // 310nF)
RT impedance ZTr 370ohm + (620ohm // 310nF)
Modem impedance 30KHz< f< 1104KHz 100 ohm
Operation voltage voice band
Nominal signal 21mVpp to 5.4 Vpp
Billing tone 10Vpp to 30.2Vpp
Ringing signal 40Vrms to 100Vrms(113Vpp
to 424 Vpp)
DC voltage 0V to 100V
Max. AC voltage 25Hz < f <50Hz 100Vrms with100VDC offset
Max. differential 320V
Current voice band
Loop current <100mA
Transient current(on/off hook) <100mA
DC Resistance
DC Resistance <=100 ohm
Isolation resistance between any
wire and earth
>10 Mohm
Isolation resistance between wires At 250Vdc >5Mohm
Voice–band characteristic
Insertion loss 1KHz <=2.0 dB
Attenuation distortion 200Hz<f<3.4KHz <=±1.5 dB
Delay distortion 200Hz<f<4KHz <200 usec
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