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Part Name(s) : LH1465AB LH1465AAE Agere
Agere -> LSI Corporation
Description : ISDN DC TERMINATION IC DATA SHEET ADVISORY View

Description
The LH1465 ISDN DC TERMINATION IC is used on U-interface digital subscriber lines (U-DSL) and provides a polarity insensitive DC TERMINATION for the loop-sealing current and a recognizable signature for mechanized loop testing (MLT) systems. The LH1465 passes DC signaling information to the NT1 circuitry through a 6N139 optoisolator (or equivalent). The LH1465 IC consists of two functional blocks. The first provides the electronIC inductor and silICon-controlled rectifier portion of the TERMINATION, while the second drives the LED of the 6N139 optoisolator. Inquire about the availability of tape-and-reel packaging for the 16-pin SOG (LH1465AAE).

Features
■ ANSI U-DSL compatible
■ High linearity
■ MLT compatible
■ SARTS compatible
■ Portable test set compatible

Part Name(s) : RX7000 NTE-Electronic
NTE Electronics
Description : MATERIAL SAFETY DATA SHEET View

MATERIAL SAFETY DATA SHEET

Part Name(s) : GS1T70-D540/2 ST-Microelectronics
STMicroelectronics
Description : ISDN DC-DC CONVERTER View

DESCRIPTION
The GS1T70-D540/2 converter has been designed for the “U” interface of an ISDN-NTBA (Network TERMINATION BasIC Access) system with either 4B3T or 2B1Q standard trasmission. Two outputs, 5V/72mA and 40V/12mA are supplied.

FEATURES
Wide operating line TERMINATION voltage
Positive or negative input voltage polarity
Input and output filtering
Short-circuit protection on both outputs
Input power during shortcircuit within specifICation
Minimum current drain during stand-by condition: 10µA for Vi<18V
Input-Output2 insulation voltage: 3000VRMS for 60 seconds
Output1-Output2 insulation voltage: 3000VRMS for 60 seconds
MechanICal dimensions (L x W x H): 50.8 mm x 50.8 mm x 18 mm (2" x 2" x 0.71")

Part Name(s) : QLS20ZG QLS25 QLS25ZD QLS25ZE Power-One
Power-One Inc.
Description : DC-DC Series DATA SHEET 25A Quarter-BrICk View

Description
The QLS25 is a new series of cost-effective, high-density single output DC-DC converters providing onboard conversion of standard telecom and DATAcom input voltagesinto isolated low voltage outputs in a through-hole mounting package. High effICiencies and a patent-pending board design signifICantly improve thermal characteristICs by evening out hot spots and enhance product reliability.

Features
• RoHS lead solder exemption compliant
• Cost-effective single board design
• Low profile – 11 mm height
• Input/output isolation: 1500VDC, basIC insulation
• High effICiency - up to 90% at full load
• Start-up into high capacitive load
• Low conducted and radiated EMI
• Output overcurrent protection
• Output overvoltage protection
• Back drive protection
• Overtemperature protection
• Remote sense
• Set point accuracy ±1%
• Remote on/off (primary referenced), positive or negative logIC
• Output voltage trim adjust, positive or negative
• UL 1950 Recognition, CSA 22.2 No. 950-95 certifICation, TUV IEC950

ApplICations
• Distributed power architectures
• TelecommunICations equipment
• LAN/WAN applICations
DATA processing applICations


Part Name(s) : CPF102IG YCL
YCL Electronics
Description : ISDN Splitter ISDN Filter for ADSL View

Introduction:
The CPF102IG is a splitter module that has been specifICally designed to implement the functionality of low pass filter in ISDN with 2B1Q/4B3T over ADSL applICation. The CPF102IG integrate low pass filter that block the high frequency energy from reaching the ISDN devICe and provide isolation from impedance effects of the ISDN devICe on ADSL. Because the ISDN 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 splitter to protect against line overstress whICh could damage the splitter itself.

 

Part Name(s) : PSB7110 PSB7110F Q67101-H6748 Infineon
Infineon Technologies
Description : Enhanced ISDN DATA Access Controller ISAR View

General Information
The ISAR PSB 7110, ISDN DATA Access Controller forms an advanced solution for ISDN applICations communICating with remote ISDN as well as analog terminals. The ISAR is designed for applICations on PC- or workstation platforms, but can also be used in ISDN/analog combining terminals.
It integrates two DATA formatting units whICh support binary framing, HDLC and ASYNC, whICh is an asynchronous DATA formatting according to ITU-T V.14. The DATA from the formatting units is than input DATA to a fax/modem modulation or V.110 or transparent framing towards the IOM-2 timeslots.
The PSB 7110 operates on the IOM-2 interface in terminal mode (1.536 MHz DCL). It is also designed to operate on line-card IOM-2 interfaces (4 MHz DCL).
The ISDN DATA Access Controller uses external RAM to implement a 61 byte FIFO structure between the host and the DATA formatting unit. The DSP program is also executed from external memory.
The PSB 7110 ISDN DATA Access Controller is a 0.5 mICron CMOS devICe offered in a thin quad-flat pack package. It operates from a single 3.6V supply with the option to drive the interface lines by a 5V supply.
As ISAR Version 1.0 ensures firmware safety through its program download mechanism, a ROM version will be following that will only require external SRAM of reduced size. This devICe will be ISAR Version 1.1.

Features
* Two universal formatter supporting ASYNC (ITU-T V.14), HDLC and binary framing of DATA for
   B-channel applICations
* Bit rate adaptation according to V.110 for both B-channels
   (except during DATAmodem modulation)
* IOM-2 terminal mode (1.536 MHz), line card mode (4 MHz)
* Fax/Modemmodulation up to 14400 bps (V.32 bis, V.17) including fallback modes
* DTMF generation / detection
* 61 byte FIFO per direction for host interface communICation
* External memory interface to connect external SRAM with a size of 32K x 16
   for program and DATA
* Mailbox interface for host communICation
* 3.6V power supply with separate 5V supply for interface pins
* Thin QFP-package
* Advanced CMOS technology

Part Name(s) : GS1T70-D540/1 ST-Microelectronics
STMicroelectronics
Description : ISDN DC-DC CONVERTER View

DESCRIPTION
The GS1T70-D540/1 converter has been designed for the “U” interface of an ISDN-NTBA (Network TERMINATION BasIC Access) system with either 4B3T or 2B1Q standard trasmission.

It meets the requirements of the following specifICations:
   EN 60950
   CCITT I.430
   CCITT G.960
   CCITT G.961
   ETS 300 002
   ETS 300 012
   ETS 300 047 (ISDN BASIC ACCESS, Safety and Protection)
  
Two isolated outputs, 5V/90mA and 40V/10.5mA are supplied. The converter offers short-circuit protection (short-circuit on 40V output doesn’t affect 5V output and the input power never exceeds the limit of the specifICation), input either voltage polarity, 80%minimum effICiency at maximum load, input and output filtering to meet very stringent noise requirements.
The input and the output 2 (40V) stages are protected against differential overvoltage up to 1kV (1.2/50µs) and 250V (10/700µs) respectively.
When the input voltage is below 18V, the converter offers a very high input impedance and a maximum quiescent current of 10µA.
These features allow the converter to operate directly connected to the telephone line without any external components.
In addition, the wide operating input voltage range allows it to operate within the whole range of LT (Line TERMINATION) battery voltage and its relevant line resistance.
2000VRMS isolation voltage for 60 second is provided between input to outputs and between output 1 and output 2.

FEATURES
■ Wide operating line TERMINATION voltage Peak input overvoltage withstand: 1kV for 1.2/50µs
■ Peak overvoltage withstand on Output 2 (40V): 250V for 10/700µs
■ Positive or negative input voltage polarity Input and output filtering
■ Short-circuit protection on both outputs
■ Input power during shortcircuit within specifICation
■ Minimum current drain during stand-by condition: 10µA for Vi<18V
■ Input-output isolation voltage: 2000VRMS for 60 seconds
■ Output1-output2 isolation voltage: 2000VRMS for 60 seconds
■ MechanICal dimensions (L x W x H): 50.8 mm x 50.8 mm x 18 mm (2” x 2” x 0.71”)

Part Name(s) : SC1110CSTRT SC1110TSTRT SC1110_04 Semtech
Semtech Corporation
Description : Sink and Source DC/DC Controller for TERMINATION Power Supply ApplICations View

Description
The SC1110 is a low-cost, full featured, synchronous voltage-mode controller designed to generate TERMINATION voltage in double DATA rate (DDR) memory systems and other applICations where wide DATA bus need to be actively terminated. Synchronous control of the MOSFET half bridge allows power flowing bi-directionally. The TERMINATION voltage can be tightly regulated to track the chipset voltage, i.e. to be exactly 50% of that at all times.

Features
◆ Generates TERMINATION voltages for active TERMINATION schemes
◆ 1% set point accuracy
◆ For ±7A output current, transient regulation is better than ±80mV
◆ VREFIN pin available for external 50% resistive divider to allow TERMINATION voltage track of the chip set voltage
◆ Buffered VREFOUT for system usage
◆ RDSON sensing for over current protection in hICcup mode
◆ Soft start and logIC input enabling
◆ 250kHz switching for best transient and effICiency performance
◆ Gate drive capable for 0.5A sourcing and sinking

ApplICations
◆ For DDR memory systems
◆ For active TERMINATION schemes in high speed logIC systems

Part Name(s) : SC111 SC1110 SC1110CSTR Semtech
Semtech Corporation
Description : SINK AND SOURCE DC/DC CONTROLLER FOR TERMINATION POWER SUPPLY APPLICATIONS View

DESCRIPTION
The SC1110 is a low-cost, full featured, synchronous voltage-mode controller designed to generate TERMINATION voltage in double DATA rate (DDR) memory systems and other applICations where wide DATA bus need to be actively terminated. Synchronous control of the MOSFET half bridge allows power flowing bidirectionally. The TERMINATION voltage can be tightly regulated to track the chipset voltage, i.e. to be exactly 50% of that at all times.

FEATURES
• Generates TERMINATION voltages for active TERMINATION schemes
• 1% set point accuracy
• For ±7A output current, transient regulation is better than ±80mV
• VREFIN pin available
• Buffered VREFOUT for system usage
• RDSON sensing for over current protection in hICcup mode
• Soft start and logIC input enabling
• 250kHz switching for best transient and effICiency performance
• Gate drive capable for 0.5A sourcing and sinking

APPLICATIONS
• For DDR memory systems
• For active TERMINATION schemes in high speed logIC systems

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