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MH89790BN PDF预览

MH89790BN

更新时间: 2024-01-08 06:29:30
品牌 Logo 应用领域
MITEL 电信集成电路光电二极管PC
页数 文件大小 规格书
32页 491K
描述
ST-BUS⑩ FAMILY CEPT PCM 30/CRC-4 Framer & Interface Preliminary Information

MH89790BN 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:SOP, GWDIP40,.9Reach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.92
Is Samacsys:NJESD-30 代码:R-PDSO-G40
JESD-609代码:e0长度:50.8 mm
功能数量:1端子数量:40
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:GWDIP40,.9封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:5 V认证状态:Not Qualified
子类别:Analog Transmission Interfaces最大压摆率:0.045 mA
标称供电电压:5 V表面贴装:YES
技术:HYBRID电信集成电路类型:FRAMER
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

MH89790BN 数据手册

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MH89790B  
ST-BUS FAMILY  
CEPT PCM 30/CRC-4 Framer & Interface  
Preliminary Information  
ISSUE 5  
May 1995  
Features  
Complete primary rate 2048 kbit/s CEPT  
transceiver with CRC-4 option  
Ordering Information  
MH89790B  
MH89790BN  
MH89790BS  
40 Pin DIL Hybrid 1.3” row pitch  
40 Pin DIL Hybrid 0.8“ row pitch  
40 Pin Surface Mount Hybrid  
0°C to 70°C  
Selectable HDB3 or AMI line code  
Two frame elastic buffer with 32µs jitter buffer  
Tx and Rx frame and multiframe  
synchroniza-tion signals  
Frame alignment and CRC error counters  
Description  
Insertion and detection of A, B, C, D signalling  
bits with optional debounce  
The MH89790B is Mitel’s CEPT PCM 30 interface  
solution, designed to meet the latest CCITT  
standards PCM 30 format with CRC-4.  
MH89790B provides a complete interface between a  
2.048 Mbit/sec digital trunk and Mitel’s  
Telecom Bus, the ST-BUS.  
Line driver and receiver  
Per channel, overall, and remote loop around  
The  
Digital phase detector between E1 line and  
ST-BUS  
Serial  
ST-BUS compatible  
Pin compatible with the MH89790  
Inductorless clock recovery  
Loss of Signal (LOS) indication  
The MH89790B is a pin-compatible enhancement of  
the MH89790, permitting the removal of the tuneable  
inductor and inclusion of the external NAND gate  
used for generating RxD.  
Available in standard, narrow and surface  
mount formats  
Supports single supply rail operation  
Applications  
Primary rate ISDN network nodes  
Multiplexing equipment  
Private network: PBX to PBX links  
TxMF  
PADi  
TxG  
ST-BUS  
Timing  
Cicuitry  
2 Frame  
Elastic  
Buffer  
with Slip  
Control  
C2i  
F0i  
PADo  
OUTA  
Digital  
Attenu-  
ator  
RxMF  
CEPT  
Link  
Transmitter  
Receiver  
OUTB  
RxA  
DSTo  
DSTi  
Data  
Interface  
Interface  
ROM  
RxT  
LOS  
RxR  
RxB  
CSTi0  
CSTi1  
Serial  
Control  
Interface  
CSTo  
E2o  
Clock  
Extractor  
ABCD  
Signalling RAM  
VDD  
ADl  
CEPT  
Counter  
E8Ko  
VSS  
Phase  
Detector  
Control  
Logic  
XCtl  
XSt  
Figure 1 - Functional Block Diagram  
4-187  

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