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Part Name(s) : MH88500 Mitel
Mitel Networks
Description : HYBRID SUBSCRIBER LINE INTERFACE CIRCUIT (SLIC) View

Description
The Mitel MH88500 SUBSCRIBER LINE INTERFACE CIRCUIT provides a complete INTERFACE between the telephone LINE and a speech switch requiring only single bidirectional switch per crosspoint. The functions provided by the MH88500 include bidirectional differential to single ended conversion in the speech path, LINE battery feed, ringing feed and loop and dial pulse detection. The device is fabricated as a thick film HYBRID in a 20-pin ‘single-in-LINE’ package allowing optimum CIRCUIT board packing density.

Features
• Differential to single ended conversion
• No transformers required
• Minimum installation space
• Off-Hook detection and LED indicator drive
• Relay drive output
• Battery and ringing feed to LINE
• Logic INTERFACE: MUTE, OFHK, RC
• Mute of incoming audio
• Dial pulse detection
• Voltage surge protection

Applications
LINE INTERFACE for:
• PABX
• Intercoms
• Key Systems

Part Name(s) : MH88500IN Mitel
Mitel Networks
Description : HYBRID SUBSCRIBER LINE INTERFACE CIRCUIT (SLIC) View

Description
The Mitel MH88500IN SUBSCRIBER LINE INTERFACE CIRCUIT provides a complete INTERFACE between the telephone LINE and a speech switch requiring only single bidirectional switch per crosspoint. The functions provided by the MH88500IN include bidirectional differential to single ended conversion in the speech path, LINE battery feed, ringing feed and loop and dial pulse detection. The device is fabricated as a thick film HYBRID in a 20-pin ‘single-inLINE’ package allowing optimum CIRCUIT board packing density.

Features
• Differential to single ended conversion
• No transformers required
• Minimum installation space
• Off-Hook detection and LED indicator drive
• Relay drive output
• Battery and ringing feed to LINE
• Logic INTERFACE: MUTE, OFHK, RC
• Mute of incoming audio
• Dial pulse detection
• Voltage surge protection

Applications
LINE INTERFACE for:
• PABX
• Intercoms
• Key Systems

Part Name(s) : MH88500 ZARLINK
Zarlink Semiconductor Inc
Description : HYBRID SUBSCRIBER LINE INTERFACE CIRCUIT (SLIC) View

Description
The Zarlink MH88500 SUBSCRIBER LINE INTERFACE CIRCUIT provides a complete INTERFACE between the telephone LINE and a speech switch requiring only single bidirectional switch per crosspoint. The functions provided by the MH88500 include bidirectional differential to single ended conversion in the speech path, LINE battery feed, ringing feed and loop and dial pulse detection. The device is fabricated as a thick film HYBRID in a 20-pin ‘single-inLINE’ package allowing optimum CIRCUIT board packing density.

Features
• Differential to single ended conversion
• No transformers required
• Minimum installation space
• Off-Hook detection and LED indicator drive
• Relay drive output
• Battery and ringing feed to LINE
• Logic INTERFACE: MUTE, OFHK, RC
• Mute of incoming audio
• Dial pulse detection
• Voltage surge protection

Applications
LINE INTERFACE for:
• PABX
• Intercoms
• Key Systems

Part Name(s) : MH88500IN ZARLINK
Zarlink Semiconductor Inc
Description : HYBRID SUBSCRIBER LINE INTERFACE CIRCUIT (SLIC) View

Description
The Zarlink MH88500IN SUBSCRIBER LINE INTERFACE CIRCUIT provides a complete INTERFACE between the telephone LINE and a speech switch requiring only single bidirectional switch per crosspoint. The functions provided by the MH88500IN include bidirectional differential to single ended conversion in the speech path, LINE battery feed, ringing feed and loop and dial pulse detection. The device is fabricated as a thick film HYBRID in a 20-pin ‘single-inLINE’ package allowing optimum CIRCUIT board packing density.

Features
• Differential to single ended conversion
• No transformers required
• Minimum installation space
• Off-Hook detection and LED indicator drive
• Relay drive output
• Battery and ringing feed to LINE
• Logic INTERFACE: MUTE, OFHK, RC
• Mute of incoming audio
• Dial pulse detection
• Voltage surge protection

Applications
LINE INTERFACE for:
• PABX
• Intercoms
• Key Systems


Part Name(s) : MH88612BV-4K MH88612BV-K Mitel
Mitel Networks
Description : SUBSCRIBER LINE INTERFACE CIRCUIT (SLIC) View

Description
The SLIC provides a complete INTERFACE between a switching system and a SUBSCRIBER loop. Functions provided include battery feed and ringing feed to the SUBSCRIBER LINE, 2-Wire to 4-Wire HYBRID interfacing, constant current feed with constant voltage foldback, and dial pulse detection. The device is fabricated using thick film HYBRID technology in a 20-pin single in-LINE package.

Features
• Transformerless 2-wire to 4-wire conversion
• Battery and ringing feed to LINE.
• Off-hook and dial pulse detection.
• Ring ground over-current protection.
• Constant current feed with constant voltage foldover.
• Relay driver.
• Power Denial.
• Wide Operating Range.
• Pin for pin compatible 600R and 900R variants.

Applications
LINE INTERFACE for:
 • PABX
 • Intercoms
 • Key Telephone Systems
 • Control Systems
 

 

Part Name(s) : HC-5502B1 HC3-5502B1-5 HC4P5502B1-5 HC9P5502B1-5 Intersil
Intersil
Description : SLIC SUBSCRIBER LINE INTERFACE CIRCUIT View

The Intersil SLIC incorporates many of the BORSHT function on a single IC chip. This includes DC battery feed, a ring relay driver, supervisory and HYBRID functions. This device is designed to maintain transmission performance in the presence of externally induced longitudinal currents. Using the unique Intersil dielectric isolation process, the SLIC can operate directly with a wide range of station battery voltages.

Features
• Low Cost Version of HC-5502B
• Capable of 12V or 5V (VB+) Operation
• Monolithic Integrated Device
• DI High Voltage Process
• Compatible With Worldwide PBX Performance Requirements
• Controlled Supply of Battery Feed Current for Short Loops (30mA)
• Internal Ring Relay Driver
• Low Power Consumption During Standby
• Switch Hook, Ground Key and Ring Trip Detection Functions
• Selective Denial of Power to SUBSCRIBER Loops

Applications
• Solid State LINE INTERFACE CIRCUIT for Analog and Digital PBX Systems
• Direct Inward Dial (DID) Trunks
• Voice Messaging PBXs
• Related Literature
    - AN549, The HC-5502S/4X Telephone SUBSCRIBER LINE INTERFACE CIRCUITs (SLIC)
    - AN571, Using Ring Sync with HC-5502A and HC-5504 SLICs

Part Name(s) : MH88612C Mitel
Mitel Networks
Description : SUBSCRIBER LINE INTERFACE CIRCUIT View

Description
The SLIC provides a complete INTERFACE between a switching system and SUBSCRIBER loop. Functions provided include battery feed and ringing feed to the SUBSCRIBER LINE, 2-Wire to 4-Wire HYBRID interfacing, constant current feed and dial pulse detection. The device is fabricated using thick film HYBRID technology in a 20-pin single in-LINE package.

Features
• Input impedance 200Ω + 560Ω // 0.1µF
• Transformerless 2-wire to 4-wire conversion
• Battery and ringing feed to LINE
• Off-hook and dial pulse detection
• Ring ground over-current protection
• Adjustable constant current feed
• Relay drive output
• Power VBat Denial
• Wide Operating Range
• Programmable Receive Gain

Applications
LINE INTERFACE for:
• PABX
• Intercoms
• Key Telephone Systems
• Control Systems

Part Name(s) : PBL38772 PBL38772/1 PBL38772/1SOD PBL38772/1SOA Ericsson
Ericsson
Description : SUBSCRIBER LINE INTERFACE CIRCUIT (SLIC) View

Description
The ringing FlexiSLIC™ PBL 387 72/1 SUBSCRIBER LINE INTERFACE CIRCUIT (SLIC) is a 90 V bipolar integrated cir cuit for use in short loop applications. The PBL 387 72/1 SLIC has been optimized for low power consumption, low total LINE INTERFACE cost and for a high degree of flexibility in various applications.
The PBL 387 72/1 SLIC supplies a balanced, sinewave or trapezoidal ringing signal of up to 81 VPeak (85 V DC supply) to the SUBSCRIBER LINE across a load of up to 5REN. The PBL 387 72/1 supplies programmable constant current to the SUBSCRIBER loop, sourced from the talk battery. The On-Hook LINE voltage of 43 V to 56 V is derived from the battery. All battery switching is internal to the device and is automatic. To further reduce power consumption the automatic gain control for the ring signal (AGC-R) keeps the level always adjusted to the maximum, that can be sourced from the available battery.
The SLIC incorporates loop current, ground key and ring-trip detection functions. The PBL 387 72/1 is compatible with loop start and ground start signalling. Two- to four-wire and four- to two-wire voice frequency (vf) signal conversion is accomplished by the SLIC in conjunction with a standard codec. The LINE terminating impedance and balance impedance is programmable and may be complex or real for worldwide compliance.
Longitudinal balance specifcations and other device characteristics are in compliance with Telcordia (Bell-core) and ITU-T requirements.
Tip and ring voltages are UL-1950 compliant; i.e. no two-wire LINE voltage exceeds 56 V. The PBL 387 72/1 SLIC is packaged in a surface mount 28-pin SOIC package.

Key Features
• On-chip ringing generation
   - Balanced, up to 81 VPeak
   - Any waveform
   - 5REN ringing load
   - Automatic gain control of ring signal (AGC-R)
   - Short CIRCUIT safe
• Low on-hook power consumption in Active
   State (65 mW @ VBat = -80 V)
• Automatic current controlled battery
   switching between on-hook battery (VBat) and
   talk battery (VTBat)
• Pulse metering and on-hook transmission
• UL-1950 and MTU compliant on-hook LINE
   voltage
• 3.3 V compatible logic INTERFACE
• Silent or fast polarity reversal
• Programmable Ring-Trip current

Part Name(s) : HC-5509B3999-003 HC9P5509B3999-003 Intersil
Intersil
Description : SLIC SUBSCRIBER LINE INTERFACE CIRCUIT View

Description
The HC-5509B3999-003 telephone SUBSCRIBER LINE INTERFACE CIRCUIT integrates most of the BORSCHT functions on a monolithic IC. The device is manufactured in a Dielectric Isolation (DI) process and is designed for use as a high voltage INTERFACE between the traditional telephone SUBSCRIBER pair (Tip and Ring) and the low voltage filtering and coding/decoding functions of the LINE card. Together with a secondary protection diode bridge and “feed” resistors, the device will withstand 1000V lightning induced surges, in plastic packages.

Features
• DI Monolithic High Voltage Process
• Compatible with Worldwide PBX and CO Performance Requirements
• Controlled Supply of Battery Feed Current with Programmable Current Limit
• Operates with 5V Positive Supply (VB+)
• Internal Ring Relay Driver and a Utility Relay Driver
• High Impedance Mode for SUBSCRIBER Loop
• High Temperature Alarm Output
• Low Power Consumption During Standby Functions
• Switch Hook, Ground Key, and Ring Trip Detection
• Selective Power Denial to SUBSCRIBER
• Voice Path Active During Power Denial
• On-Chip Op Amp for 2-Wire Impedance Matching

Applications
• Solid State LINE INTERFACE CIRCUIT for PBX or Central Office Systems, Digital Loop Carrier Systems
• Hotel/Motel Switching Systems
• Direct Inward Dialing (DID) Trunks
• Voice Messaging PBXs
• High Voltage 2-Wire/4-Wire, 4-Wire/2-Wire HYBRID

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