Allicdata Part #: | LE89156PQCT-ND |
Manufacturer Part#: |
LE89156PQCT |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Microsemi Corporation |
Short Description: | IC FXS 1CH 100V BORSCHT 48QFN |
More Detail: | Telecom IC Telecom Circuit 48-QFN (7x7) |
DataSheet: | LE89156PQCT Datasheet/PDF |
Quantity: | 1000 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Function: | Telecom Circuit |
Interface: | PCM |
Number of Circuits: | 1 |
Voltage - Supply: | 3.135 V ~ 3.465 V |
Current - Supply: | -- |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 48-VQFN Exposed Pad |
Supplier Device Package: | 48-QFN (7x7) |
Includes: | -- |
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LE89156PQCT Application Field and Working Principle
The LE89156PQCT is an advanced Telephone Line Interface Circuits (TLIC) for xDSL applications. It\'s used for various PCM signal processing of various xDSL technologies, such as ADSL, HDSL and VDSL, etc. It is specifically intended for PCM Analog Front End (AFE) to interface with standard analog telephone lines.
The LE89156PQCT features an increased integration of functions such as high-speed switching, Digital-to-Analog conversion, Clock Recovery and digital Equalizer, which is designed to achieve higher data throughput rates. This device consists of a filter and a Viterbi detector which perform signal conditioning, error control and data stream adaptation. In addition, it supports the Internal POTS (IPOTS) and the Remote POTS (RPOTS) for dual line applications.
The LE89156PQCT is highly integrated with low power consumption and excellent noise immunity. It works within a wide operation temperature range from 0°C to 70°C and is available in two package sizes, the 14-pin VSSOP and the 20-pin plastic TSSOP.
Application Field
The LE89156PQCT is widely used in applications such as FTTP (Fiber-to-the-Premises), xDSL, remote access systems and private branch exchange (PBX) systems. As a high performance Integrated Circuit (IC) for multimedia applications, the LE89156PQCT can be used to process various audio and video signals efficiently with excellent quality. It can also be used to enable special features such as echo cancelling, voice or music streaming, or telephone over IP.
In communication networks, the LE89156PQCT can be used for POTS applications, such as VoIP (Voice over IP) or PSTN (Public Switched Telephone Network) over IP, which require the extraction and detection of information from the digital stream transmitted from one end to another.
The application field of the LE89156PQCT is further extended to automotive systems, home appliances, and industrial applications. It can be used for remote control, data logging and data transmission through a wireless connection, or a TCP/IP network.
Working Principle
The working principle of the LE89156PQCT is based on the principle of error control coding. It utilizes a standard 8-bit code, the Viterbi algorithm, to detect data errors and correct them, thereby improving the performance of the transmission. This device has an advanced Time Division Multiplexing (TDM) architecture to perform a wide range of functions such as signal equalization, pulse shaping, clock recovery, coding and channel emulation. Additionally, it supports both analog and digital data transmission protocols.
The LE89156PQCT features an integrated clock oscillator (oscillator frequency range from 5MHz to 75MHz) that provides a reference clock for the AFE, and a digital equalizer to optimize the signal performance in both the low and high frequency range. It supports the POTS and RPOTS modes for xDSL applications, with extra features such as Digital Signal Processing (DSP) for echo cancellation and noise reduction, and an internal filter for anti-alias and anti-ringing.
The device also has a Power Management Interface (PMI), which is used to control the different power states of the device in order to support power management functions in power-sensitive applications. This is used to reduce the power consumption when there is no data traffic, and to enable proper power sequencing.
Conclusion
The LE89156PQCT is an advanced Telephone Line Interface Circuits (TLIC) designed to enable the implementation of high speed xDSL applications. It supports various low power digital signal processing algorithms and provides an integrated clock oscillator and digital equalizer to ensure excellent signal quality. This device is ideally suited for applications such as FTTP, xDSL, remote access systems, VoIP, PSTN over IP and PBX systems.
The specific data is subject to PDF, and the above content is for reference
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