ADSL / VDSL
Low Pass Filter LCR Modules
Introduction
Introduction
The market of the telecommunication is dominated by the XDSL technology (Digital
Subscriber Line). Under the different XDSL variations the ADSL/VDSL gets an outstanding part. ADSL with its asymmetric performance, a high download rate and a small upload rate optimized for Internet use, needs its special hardware on the CO (Central Office) and CPE (Customer Premised Equipment) side. ADSL linecards installed by the provider at the central relay facilities and an ADSL modem for the subscriber require a POTS- (Plain Old Telephone
Service, analogue telephone) or ISDN-Splitter to separate the telephone and ADSL signals, which are transmitted along one cable. Inductive components are used in ADSL for various applications. VDSL is the reasonable further development of the XDSL technology, driven by extremely high downloads up to 50Mb/s for several applications, like TV. Especially HDTV with its high data rates VDSL gives a possibility to manage all these demands in one technical solution for a high reachability of the customers.
VAC’s current product spectrum for the ADSL/VDSL system fulfils the market demands and the customers needs. Besides the established filter components, splitters CPE and splittercards CO for ADSL/VDSL, VAC also produces for ADSL/VDSL the new low pass filter LCR modules. Besides the LCR Modules designed according the international ITU-T and ETSI ATA standards, VAC also develops customized LCR modules with additional requirements. Development work is based on a close cooperation between the customer and VAC and on the specifications of the customer. Afterwards the modules are manufactured by VAC in process and cost optimized plants. Our in-depth knowledge of the application fields and technical requirements puts us in a position to find the ideal solution and turns this into an innovative product. The VAC ADSL/VDSL LCR modules are developed with a maximum reduction of PCB space, including all components for a splitter and no need for additional capacitors or resistors. They were all delivered with a fully tested filter performance.
The advantages of using VAC ADSL/VDSL LCR modules including all inductors, capacitors and resistors are:
- simple PCB layout (2 pins for Line in and 2 pins for Line out)
- very compact designs for increasing the line density
- cost optimized designs and production
- fully RoHS compliant
- completely tested filter with excellent insertion loss, return loss and attenuation
. characteristics
Cross-Reference-List ADSL/VDSL LCR Modules
ADSL/VDSL low pass filter LCR modules of following applications are available.
Technical details on request.Designed according to:
ITU-T G992.1 Annex B (ISDN) + E3
ETSI TS 101 952-1-3 PTH SMD
casing typ → . upright flat flat - 4B3T (150Ω)
- 2B1Q (135Ω) 5081-101** 5055-008** 5052-145**
ETSI TS 101 952-1-4 Combi (ISDN/POTS) PTH SMD
casing typ → . upright flat flat - 4B3T (150Ω) + (220 Ω + (820 Ω // 115 nF)) - 2B1Q (135Ω) + (220 Ω + (820 Ω // 115 nF)) - 4B3T (150Ω) + (270 Ω + (750 Ω // 150 nF)) - 2B1Q (135Ω) + (270 Ω + (750 Ω // 150 nF)) 5081-101** 5055-008** 5052-145**
Other Combi (ISDN/POTS) PTH SMD casing typ → . upright flat Flat - 2B1Q (135Ω) + (600Ω) 5081-101** 5055-008** 5052-145**
ITU-T G992.1
Annex A (POTS) + E1 PTH SMD
casing typ → . upright flat flat - 600Ω, real without BT K24816* /
5081-803** / 5081-503+ K24607* 5052-146*
ETSI ATA TS 101 952 -1 -1
(POTS) PTH SMD
casing typ → . upright flat flat - option (A) 270 Ω + (750 Ω // 150 nF) + 600 Ω 5081-801** / 5081-501** - - - option (B) 270 Ω + (750 Ω // 150 nF) 5081-802** / 5081-502** - -
* ADSL, ADSL2+, VDSL1
** ADSL, ADSL2+, VDSL2
+ under development
- Other filter characteristics are available on request -
Europe
VACUUMSCHMELZE GMBH & Co. KG P.O. Box 2253
D-63412 Hanau, Germany
Asia/Pacific
VACUUMSCHMELZE Singapore Pte Ltd 300 Beach Road, #31-03 The Concourse Singapore 199555
America
VAC Magnetics Corporation 101 Magnet Drive Elizabethtown, KY 42701
Mechanical Dimensions
ADSL/VDSL Low Pass Filter LCR Modules
- casing PTH upright (5081-8xx) - casing PTH upright (5081-5xx) - casing PTH upright (5081-1xx) - casing PTH flat (5055-xxx) - casing SMD flat (5052-xxx) 0,6x0,4 1 10 18 DC = Date Code F = Factory DC F 9 15,2 2,54 20,32 29 13,8 13,6 9,2 Toleranz der Stiftabstände ±0,2mm (Tolerances grid distance )
4,0-0,5 Wicklung evtl. teilweise sichtbar (windings can be partially visible)
0,6x0,4 1,3 2,54 1 10 18
Toleranz der Stiftabstände ±0,2mm (Tolerance grid distance)
DC = Date Code F = Factory DC F Vorschlag zur Anordnung der Anschlußflächen (Example for pad positions) 0,1 9 18,3 15,2 2,54 20,32 29 13,8 13,6 9,2 ≤10 19,3 13,2
Wicklung teilweise sichtbar (windings partially visible)
T o le ra n z de r S tif ta b s t ä nd e ± 0 ,2 m m ( To le r an c es g rid d is ta n ce ) D C = D a t e C o de F = F a c t o ry F D C S tift e 0 ,5 x 0, 5 ( pin 0 ,5 x 0 ,5 ) 8 , 8 9 1 0 , 1 6 2 5 , 4 2 4, 1 3 1 4 , 5 3 ,5 ± 0, 5 * 5 ,0 8 6 , 9 8 5 1 5 6 1 0 * = v or lä u f ig (p re lim in a ry ) 3 ,0
Toleranz der Stiftabstände ± 0 ,2mm
(Tolerances grid distance) DC =D ate C ode F=Factory F DC 14,5 0,5 3,5±0,5 Kennzeichnung Stift 1 (marking pin 1) Stift Ø 1 ,0 51 44,7 12,5 10 1 3 4 2
ADSL/VDSL Filter Characteristics
- ITU-T G.992.1 Annex B (ISDN) + E3; 5081-101 or 5055-008 or 5052-145 ETSI TS 101 952-1-3 , -1-4
ISDN port 4B3T (150 Ω) - Insertion loss
- Attenuation
- Return loss
- ITU-T G.992.1 Annex B (ISDN) + E3; 5081-101 or 5055-008 or 5052-145 ETSI TS 101 952-1-3 , -1-4 ISDN port 2B1Q (135 Ω) - Insertion loss - Attenuation - Return loss -50 -40 -30 -20 -10 0 1 10 100 f (kHz) -4 -3 -2 -1 0 0 10.000 20.000 30.000 40.000 50.000 60.000 70.000 80.000 90.000 100.000 f (Hz) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 100 1000 f (kHz) -40 -30 -20 -10 0 -6 -5 -4 -3 -2 -1 0 0 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 f (Hz) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 100 1000 f (kHz)
ADSL/VDSL Filter Characteristics
- ETSI TS 101 952 -1-4 ; 5081-101 or 5055-008 or 5052-145 POTS port (220Ω+(820Ω//115nF)) - Insertion loss - Attenuation - Return loss - ETSI TS 101 952 -1-4 ; 5081-101 or 5055-008 or 5052-145 POTS port (270Ω+(750Ω//150nF)) - Insertion loss - Attenuation - Return loss
- Other filter characteristics are available on request -
-1,5 -1 -0,5 0 0,5 1 1,5 0,0 1,0 2,0 3,0 4,0 f (kHz) -30 -25 -20 -15 -10 -5 0 1 10 f (kHz) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 100 1000 f (kHz) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 100 1000 f (kHz) a S ( d B ) -1,5 -1 -0,5 0 0,5 1 1,5 0 1 2 3 4 f (kHz) a E ( d B ) -30 -25 -20 -15 -10 -5 0 1 10 f (kHz) aR ( d B )
ADSL/VDSL Filter Characteristics
-6 -4 -2 0 10 100 1000 10000 100000 f (kHz) a E ( d B ) -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 100 1000 10000 100000 f (kHz) a S ( d B ) -6 -4 -2 0 10 100 1000 10000 100000 f (kHz) a E ( d B ) -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 100 1000 10000 100000 f (kHz) a S ( d B ) -6 -5 -4 -3 -2 -1 0 1 10 100 1000 10000 100000 f (kHz) a E ( d B ) -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 100 1000 10000 100000 a S ( d B ) - ETSI ATA TS 101 952 -1-1 ; 5081-801POTS port (270Ω+(750Ω//150nF)+ 600Ω) option (A)
- Insertion loss - Attenuation
- ETSI ATA TS 101 952 -1-1 ; 5081-802
POTS port (270Ω+(750Ω//150nF)) option (B)
- Insertion loss - Attenuation
- ITU-T G992.1 Annex A POTS +E1 ; 5081-803
POTS port (600Ω) with BT
- Insertion loss - Attenuation
ADSL/VDSL Filter Characteristics
-120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 100 1000 10000 100000 f (kHz) a S ( d B ) -6 -4 -2 0 10 100 1000 10000 100000 f (kHz) a E ( d B ) -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 100 1000 10000 100000 f (kHz) a S ( d B ) -6 -4 -2 0 10 100 1000 10000 100000 f (kHz) a E ( d B ) - ETSI ATA TS 101 952 -1-1 ; 5081-501
POTS port (270Ω+(750Ω//150nF)+ 600Ω) option (A)
- Insertion loss - Attenuation
- ETSI ATA TS 101 952 -1-1 ; 5081-502
POTS port (270Ω+(750Ω//150nF)) option (B)
- Insertion loss - Attenuation