Datasheet MF623A Datasheet (YCL)

Product Specification

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

SHEET 1 OF 10

File No RDPS-MF060
Revision R0
System Application High Speed Digital Services
Product Type Dual In-Line filter
Product Name MF623A
Date Oct. 16th, 2002

Jay Hsieh - Design Engineer, R&D_1Issued By

[e-mail]

Roger Wu - Manager, R&D_1Approved By

[e-mail]

Issued Date Oct. 16th, 2002

YCL Electronics Co., Ltd.

No.95, Feng Jen Road, Feng Shan City, Kaohsiung County, 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

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

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Table of contents

Item Description Page

1. Introduction ----------------------------------------------- 3

2. Compatibility ----------------------------------------------- 4

3. References ----------------------------------------------- 4

4. Abbreviations ----------------------------------------------- 5

5.

Technical requirements

----------------------------------------------- 5

5.1. Schematic ----------------------------------------------- 5

5.2. ZHP-r definition ----------------------------------------------- 5

5.3. Electrical specification ----------------------------------------------- 6

6.

Environmental conditions

----------------------------------------------- 8

6.1. Resistibility to overvoltages and
overcurrents ----------------------------------------------- 8

6.2. Climatic conditions

----------------------------------------------- 8

6.2.1. Operating temperature

----------------------------------------------- 8

6.2.2. Storage and transportation

----------------------------------------------- 8

6.2.3. Operating humidity

----------------------------------------------- 8

7. Reliability conditions ----------------------------------------------- 9

8. Mechanical conditions ----------------------------------------------- 10

8.1. Outline dimension ----------------------------------------------- 10

8.2. Pin assignment ----------------------------------------------- 10

Product Specification

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

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1. Introduction:

The Dual In-Line 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 1.5 Mbps downstream and 512 kbps
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 premise based POTS splitter. Recent field trials of ADSL Lite
equipment jointly carried out by a group of manufacturers and a North America network
operator has proved the technology, achieving maximum data rate for distance up to 15000
feet, 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. The Dual In-Line filter for phones
or telephone equipment sharing a two-line phone jack. The low pass filters provide protection
from ADSL signal which may impact through non-linear or other effects remote devices
( telephone sets, facsimile machine, answering machine, voice band modem, etc. )
individually or in groups on both line 1 and line 2. It also provides a second Jack that is
unfiltered for connecting ADSL and / or HPN. For ADSL signal, it also provides protection
from the high frequency transients and impedance effects that occur during POTS operation
( ringing transients, on / off hook transients and so on ). This Dual In-Line filter provides one
filtered jack for any single or two-line phone devices.

Because the Dual In-Line filter 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 the Dual In-Line filter to protect against line
overstress which could damage the Dual In-Line filter itself. The electrical and transmission
specifications are designed electronically to isolate the high speed DSL and HPN data
streams from the voice band Plain Ordinary Telephone Service ( POTS ). This design
effectively blocks the ADSL, HPN and other radio frequencies up to 10 MHz.

Product Specification

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

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2. Compatibility:

* This Dual In-Line filter complies with 47 CFR 68 302 ( b ), ( c ), UL 1950, CSA C22.2 No.
950-95, GR 1089-Core, ITU-T K.21 etc. electrical safety requirements for network
telecommunication equipment.

* This Dual In-Line filter complies with all necessary requirements applicable to voice band
equipment for FCC CFR 47 part 68 registrations.

* This Dual In-Line filter is compatible with central office POTS line metallic test equipment for
voice band testing.

* This Dual In-Line filter meets all requirements in this product specification regardless of the
Tip-to-Ring polarity.

* This Dual In-Line filter allows transmission of caller ID information to a connected POTS
device when the connected device is in the On-hook or Off-hook state.

* This Dual In-Line filter allows transmission of voice and voice band data, including cordless
telephone sets, V.90 modems and facsimile machines in the Off-hook state.

3. References:

Ref. 1 : ETS 300 001 Attachments to the Public Switched Telephone Network
(PSTN); General technical requirements for equipment
connected to analogue subscriber interface in the PSTN.
Ref. 2 : ANSI T1.413 Network and Customer Installation Interfaces ­ Asymmetric Digital Subscriber Line (ADSL) Metallic
Interface
Ref. 3 : ITU-T G.992.1 Asymmetrical Digital Subscriber Line (ADSL) Transceiver
Ref. 4 : ITU-T G.992.2 Splitterless Asymmetric Digital Subscriber Line ( ADSL )
Transceivers
Ref. 5 : T1E1.4/2001-007R3 In-Line Filter Standard
Ref. 6 : ITU-T K.21 Resistibility of Telecommunication Equipment Installed
in Customer Premises to Overvoltages and Overcurrents
Ref. 7 : ITU-T K.44 Resistibility tests for telecommunication equipment exposed
to overvoltages and overcurrents - Basic Recommendation
Ref. 8 : 47 CFR Part 68 Connection of terminal equipment to the telephone network,
Federal Communications Commission, code of Federal
regulations
Ref. 9 : UL 1950 Underwriters Laboratories, the Standard for Safety of
Information Technology Equipment, Including Electrical
Business Equipment
Ref. 10 : GR 1089-Core Electromagnetic Compatibility and Electrical Safety Generic
Criteria for Network Telecommunications Equipment

Product Specification

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

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4. Abbreviations:

ADSL Asymmetric Digital Subscriber Line
CO Central Office
CPE Customer Premise Equipment.
POTS Plain Old Telephone Service
ATU-C ADSL Transceiver Unit - Central

ATU-R ADSL Transceiver Unit - Remote

5. Technical requirements:

5.1. Schematic:

The following drawing illustrates the schematic of this product.

5.2. ZHP-r definition:

To facilitate testing of the In-Line Filter independently of the actual modem or specific
vendor, ZHP-r is defined to allow proper termination of the Line port during voice band
testing. The ZHP-r is valid only for voice band frequency. The combination of capacitors in
the ZHP-r is only representative. The input shall be 27nF however derived. ZHP-r
equivalent circuit is shown below.

0.056 uF

0.056 uF

0.47 mH

100 ohms

RJ-14
Jack

RJ-14
Jack

Phone

Line

LPF

LPF

RJ-14
Jack

DSL

Product Specification

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

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5.3. Electrical Specification:
The low pass filter shall satisfy the following parametric limits with the voice terminals

ZL=600 ohms and complex impedance ZNL-r shown in this table.

Electrical requirements

Splitter parameters

Range Values

Splitter bandwidth DC to 10 kHz
Nominal voice band 0.3 kHz to 3.4 kHz
Ringing frequency 15.3 Hz to 68 Hz
ADSL band 30 kHz to 1104 kHz
Line Impedance Z

L

200 Hz to 4 kHz 600 ohms

Modem impedance 25 kHz to 1104 kHz 100 ohms

Operation voltage voice band

Nominal signal 21 mVpp to 5.4 Vpp

Ringing signal

40 Vrms to 150 Vrms
( 113 Vpp to 424 Vpp )

DC voltage 0 V to 105 V

Max. AC voltage

150 Vrms with –105 VDC
offset

Max. differential 320 V

Operation current voice band

Loop current < 100 mA

DC resistance

DC resistance Tip to Tip / Ring to Ring < 12 ohms
Isolation resistance Tip to Ring > 10 Mohms

Differential input blocking impedance

20 kHz > 2 kohms
30 kHz > 3 kohms
5 MHz to 10 MHz > 2 kohms

Line side

10 MHz to 400 MHz N / A

Voice band characteristics

Insertion loss between 600 ohms
resistive single filter

1004 Hz < 0.3 dB

With 5 filters 1004 Hz < 0.5 dB

Product Specification

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

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Electrical requirements

Splitter parameters

Range Values

200 Hz to 3.4 kHz < 0.5 dB

Attenuation distortion between 600
ohms resistive single filter
( relative to 1004 Hz )

3.4 kHz to 4 kHz < 0.75 dB
200 Hz to 3.4 kHz < 2.5 dB

With 5 filters

3.4 kHz to 4 kHz < 4 dB
SRL-L > 30 dB
ERL > 20 dB600 ohms Return loss single filter
SRL-H > 17 dB
SRL-L > 20 dB
ERL > 13 dBWith 5 filters
SRL-H > 7 dB
SRL-L > 25 dB
ERL > 15 dB

Complex* ZNL-r Return loss single

filter

SRL-H > 7 dB
SRL-L > 15 dB
ERL > 7 dBWith 5 filters
SRL-H > 1.5 dB

*

1330 ohms in parallel with the series connection of a 348 ohms resistor and a 100 nF capacitor

200 Hz to 1 kHz > 58 dB

Longitudinal conversion loss ( LCL )

1 kHz to 3 kHz > 53 dB

Delay distortion 200 Hz to 4 kHz < 100 µs

2nd > 65 dB

Harmonic distortion

3nd > 65 dB
2nd > 60 dB

Inter-Modulation distortion

3nd > 65 dB

ADSL band characteristics

40 kHz > 45 dB

Common mode rejection

1.1 MHz > 45 dB

ADSL band attenuation 30 kHz > 26 dB

1 MHz > 65 dB

Product Specification

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

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6. Environmental conditions:

6.1. Resistibility to overvoltages and overcurrents:

The Dual In-Line filter has to comply with requirements as per ITU-T K.21, 47 CFR 68 302
( b ), ( c ), UL 1950, CSA C22.2 No. 950-95, GR 1089-Core etc. electrical safety
requirements for network telecommunication equipment.

6.2. Climatic conditions:

6.2.1. Operating temperature:

Operation guarantee temperature ( -40 0C to +85 0C )

6.2.2. Storage and transportation:

Low ambient temperature - 20 0C
High ambient temperature +85 0C
( According to MIL-STD-202 method 107 )

6.2.3. 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

Product Specification

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

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7. Reliability conditions:

Sampling

Quantities

Test
Item

Description of Testing Test Condition Acceptance

D.V.T.

Pilot Run

Mass

Product

By Visual Examination or by
using X-Ray, Microscope etc.
to Examine sample.

1

Visual / Mechanical
Examination

Reference:QC-0-12&QC-0-22

No cracking,
broken, marking
color changing
and lose marking
after washing.

2 4

According to clause 5.3
Electrical Specification,
pp. 6-7.

2 Electrical Characteristic

Reference: QC-0-16

No electrical
failure.

2 4

-20 0C →+85 °C, 5 cycles
( 25 , 50, 100 cycles for D.V.T )

3 Thermal Shock

Reference: MIL-STD-202
method 107 / QC-0-20

No electrical
failure.

1 2

+50 0C / 95 RH, 96 hrs.
( 168, 500 hrs. for D.V.T. )

4

Temperature Humidity
Exposure

Reference: MIL-STD-202
method 103 / QC-0-11

No electrical
failure.

1 2

Random vibration / Overall :

1.15 g rms
Freq. ( Hz ) :

1 → 4 → 100 → 200

PSD ( g2/Hz ) :

0.0001 → 0.01 → 0.01 →

0.001
Test Axis / Time : Top / 30

mins Bottom / 10 mins X

axis : 10 mins Y axis : 10
mins

5 Vibration Test

Reference: ISTA PROJECT 2A
/ QC-0-21

No electrical
failure &
mechanical
faults.

1 box 1 box

Product Specification

MF623A

Data sheet subject to change without notice RDPS-MF060(R0)10/16/2002

SHEET 10 OF 10

8. Mechanical conditions:

8.1. Outline dimension:

Note:

1. Connect the Line side of the Dual In-Line filter to the wall jack, the phone side of
the Dual In-Line filter to the telephone sets and the DSL side of the Dual In-Line
filter to the ADSL modem.

2. Incorrect connection will significantly affect the performance and operation.

3. Unless otherwise specified, all tolerances are mm ( inch ) ± 0.25 ( 0.010 ).

4. Unit: mm

8.2. Pin assignment:

Position Type Tip Ring

Line 1 RJ 14 Jack Pin 3 Pin 4

Phone 1 RJ 14 Jack Pin 3 Pin 4

DSL 1 RJ 14 Jack Pin 3 Pin 4
Line 2 RJ 14 Jack Pin 2 Pin 5

Phone 2 RJ 14 Jack Pin 2 Pin 5

DSL 2 RJ 14 Jack Pin 2 Pin 5

LINE

( RJ 14 Jack 6P4C )

PHONE
( RJ 14 Jack 6P4C )

DSL

( RJ 14 Jack 6P4C )