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N681387

更新时间： 2024-09-25 01:02:55
品牌 Logo 应用领域
新唐 - NUVOTON /
页数 文件大小 规格书
164页 1959K
描述
Single Programmable Extended Codec/SLCC

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N681387 数据手册

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N681386/87  
Single Programmable Extended Codec/SLCC  
1. DESCRIPTION  
The N681386/87, implements a single channel FXS telephone line interface optimized for short loop applications. It  
integrates SLCC (Subscriber Line Control Circuit) functionality with a programmable CODEC and a DC/DC controller.  
The SLCC supports internal ringing up to 90 VPK (5 REN at 4k ft) ideal for Customer Premise Equipment (CPE). The  
CODEC can be configured for μ-law, A-law or 16-bit linear PCM encoding. It also supports a comprehensive set of  
signaling capabilities required to supervise and control the telephone lines. These include tone generation, ring  
tones, DTMF detection/ generation as well as FSK generation. An on-chip Pulse Width Modulation (PWM) driver  
allows control of an inductor based DC/DC converter. Programmable impedance and trans-hybrid balancing allow for  
worldwide deployment.  
2. FEATURES  
¡
¡
¡
Narrowband Codec (N681386)  
Wideband and Narrowband codec (N681387)  
¡
¡
Complete BORSCHT functions  
Internal balanced and unbalanced ringing up to 90  
PK (5 REN up to 4k ft)  
Integrated Power Management Options  
Optional integrated (N681622) or discrete  
Subscriber Line Feed Circuit  
V
¡
¡
APPLICATIONS  
ƒ
Integrated DC/DC controller regulates battery  
voltage to minimize power dissipation in all  
operating modes  
¡
¡
¡
¡
¡
¡
¡
¡
Residential VoIP Gateways / Routers/ IP-PBX  
Fiber to the Premise/Home (FTTP/H)  
Wireless Local Loop  
ƒ
Programmable external battery switching  
Programmable linefeed characteristics  
Optical Network Terminals (ONT)  
Analog Telephone Adapter (ATA)  
Voice enabled DSL/Cable Modems  
Integrated Access Devices  
Set Top Boxes  
ƒ
ƒ
ƒ
Ringing Frequency, Amplitude, and Cadence  
Trapezoidal and Sinusoidal waveforms  
Two wire AC impedance, and trans-hybrid  
balance  
ƒ
ƒ
ƒ
Constant Current feed (20 to 41) mA  
Ring Trip and Loop Closure Thresholds  
Ground Key Detection  
Ordering Information  
¡
¡
Programmable signal generation and detection  
Temp  
Package  
Material  
Part Number  
Package  
48-LQFP  
Range (oC)  
ƒ
DTMF generation/ detection and Tone  
generation  
N681386DG  
N681387DG  
-40 to 85  
Pb-Free  
ƒ
Frequency Shift Keying (FSK) Enhanced Caller  
ID generation (Type I and Type II)  
N681386YG  
N681387YG  
Loop test and diagnostics support  
-40 to 85  
-40 to 85  
48-QFN  
20-QFN  
Pb-Free  
Pb-Free  
ƒ
ƒ
ƒ
ƒ
Integrated loopback modes  
Real-time linefeed monitoring  
On-chip temperature sensor  
Line Card Diagnostics Support  
N681622YG  
! WARNING !  
¡
Digital interfaces  
ƒ
ƒ
ƒ
PCM: G.711 μ-Law, A-Law and 16-bit linear  
GCI and SPI bus  
HIGH VOLTAGE WARNING  
USE EXTREME CAUTION  
Programmable audio path gains  
High voltage sources could cause serious injury or  
death if not used in accordance with design and/or user  
specifications, if they are used by untrained or  
unqualified personnel. Before testing Nuvoton’s products  
read and understand all instructions, and safety  
procedures as in industry standard safe practices.  
¡
¡
Both PCM Master and Slave modes supported  
On-chip PLL for flexible clocking options including  
1.0 MHz and 2.0 MHz BCLK operation  
¡
Operating voltage: 3.3V  
Preliminary Datasheet Rev1.0  
Page 1 of 164  
January 2010  
1234567...164

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