PM4358中文资料COMET OCTAL 8-Ch E1/T1/J1 Transceiver/Framer数据手册Microchip规格书

描述 Description

The PM4358 COMET-OCTAL device is an Eight-channel T1/E1/J1 framer with integrated analog Line Interface Unit (LIU). The COMET-OCTAL provides a common Framer and LIU solution platform for all major worldwide formats. In a compact 17mm by 17mm package, the device provides complete line side integration, software-selectable redundancy for 1:1 protection, software-selectable framing for three global primary rate framing formats (T1/E1/J1) and support for short-haul and long-haul analog line interfaces.

The COMET-OCTAL enhances system reliability by enabling customers to implement software selectable 1:1 protection for redundant applications with no additional board components. In a redundant application, a standby T1/E1/J1 interface is used to protect an active link, allowing a quick recovery in case of line failures. The device also autonomously generates periodic performance reports, which reduce the software overhead associated with meeting T1 Standards in high-density designs.

Applications
• Wireless Base Transceiver Station and Digital Loop Carrier (DLCs)
• Enterprise Router
• DSLAM
• PON Optical Network Unit (ONU)
• Integrated Access Device (IAD)
• Voice Gateway
• Channel and Data Service Units (CSU/DSU)
• Digital Private Branch Exchanges (PBX)
• Test Equipment

特性 Features

Programmable integrated termination: T1 100O, J1 110O, E1 120O, E1 75O
Internal support for redundancy (Y-cable) applications
Small footprint 256-pin fine pitch CABGA (17 mm by 17 mm) package
Low power dissipation of 165 mW per channel
100% pin and software compatible with PM4359 COMET TETRA , software compatible with PM4351 COMET and PM4354 COMET QUAD
Software selectable between T1/J1 and E1 operation on a per device basis
Provides digitally programmable longhaul and shorthaul pulse templates and line build out
Meets or exceeds T1/J1 and E1 shorthaul and longhaul network access specifications including ANSI T1.102, T1.403, T1.408, AT&T TR 62411, ITU-T G.703, G.704 as well as ETSI 300-011, CTR-4, CTR-12 and CTR-13
Provides an 8-bit microprocessor bus interface or SPI compatible hardware only interface for configuration, control, and status monitoring
Provides transmit and receive jitter attenuation
Provides eight full-featured HDLC controllers, each with 128-byte transmit and receive FIFO buffers
Provides a two-frame payload slip buffer to allow independent backplane and line timing
Automatically generates and transmits DS-1 performance report messages to ANSI T1.231 and ANSI T1.408 specifications
Provides PRBS generators and detectors on each tributary for error testing at DS1, E1 and N x 64 Kbit/s rates as recommended in ITU-T O.151 and O.152
Provides encoding and decoding of B8ZS, HDB3 and AMI line codes
Provides receive equalization, clock recovery and line performance monitoring
Uses line rate system clock
Provides an IEEE P1149.1 (JTAG) compliant test access port (TAP) and controller for boundary scan test
Implemented in a low power 1.8/3.3 V CMOS technology
Provides a -40 ºC to +85 ºC industrial temperature operating range

简介

PM4358属于集成电路（IC）的电信。由制造生产的PM4358电信电信接口集成电路 (IC) 为通信网络接口提供特定功能和控制，例如以太网切换、线路驱动器、ISDN、放大器、通道扩展器、数字锁相环、DTMF、音频发生器和解码器、回声消除、检测器和发生器、DDA、电话线路监控器和主叫号码标识。