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VSC8132 PDF预览

VSC8132

更新时间: 2024-02-08 15:16:40
品牌 Logo 应用领域
VITESSE 电信集成电路异步传输模式ATM
页数 文件大小 规格书
14页 124K
描述
2.488Gb/s 1:32 SONET/SDH Demux

VSC8132 技术参数

生命周期:Transferred零件包装代码:QFP
包装说明:HFQFP,针数:128
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.82JESD-30 代码:R-PQFP-G128
长度:20 mm功能数量:1
端子数量:128最高工作温度:85 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:HFQFP封装形状:RECTANGULAR
封装形式:FLATPACK, HEAT SINK/SLUG, FINE PITCH认证状态:Not Qualified
座面最大高度:2.35 mm标称供电电压:3.3 V
表面贴装:YES电信集成电路类型:ATM/SONET/SDH MUX/DEMUX
温度等级:OTHER端子形式:GULL WING
端子节距:0.5 mm端子位置:QUAD
宽度:14 mmBase Number Matches:1

VSC8132 数据手册

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VITESSE  
SEMICONDUCTOR CORPORATION  
Preliminary Data Sheet  
2.488Gb/s 1:32 SONET/SDH Demux  
VSC8132  
Features  
• 77.76, 51.84, and 38.88MHz TTL Clock Outputs  
• Single 3.3V supply  
• 2.488Gb/s 1:32 Demultiplexer  
• SONET STS-48/SDH STM-16  
• Loss of Clock Alarm  
• HSPECL Differential Serial Data and Clock  
Inputs  
• Loss of Data Alarm  
• 32-Bit TTL Parallel Data Outputs with Odd/  
Even Parity Check  
• 2.05W Max Power Dissipation  
• 128-Pin PQFP Package  
• Frame Detect Synchronization  
General Description  
The VSC8132 demultiplexes a 2.488Gb/s HSPECL serial input datastream (DI+) to 32-bit wide, TTL  
77.76Mb/s parallel data outputs D[31:0] for SONET/SDH applications. A 2.488GHz HSPECL input clock  
(CLKI+) is used to time the incoming data and 3 TTL clock outputs, at frequencies of 77.76MHz, 51.84MHz,  
and 38.88MHz, are generated for upstream devices (DATACLK78, CLK51, CLK38). Odd or even parity is per-  
formed on the incoming high-speed data via the TTL Parity Select input (PARSEL), and a TTL Parity output  
(PARITY) is provided to indicate parity of the input data. Frame Detect on the incoming data is controlled via  
the Frame Detect Inhibit (OOFN) and Reset (RESET) TTL inputs. A frame detect monitors the incoming data  
steam and screens for 2 bits in A1 byte out of the 8 bits and 2 bits of A2 byte out of the 8 bits. When a Frame  
Detect occurs, a synchronization TTL output (SYNC) will be set. Alarm indicators are used to monitor the  
activity of the clock and data with TTL compatible control inputs (ALMRESET) and outputs (DTALARM,  
CKALARM).  
Only a single 3.3V power supply is required for device operation. The VSC8132 is packaged in a ther-  
mally-enhanced 128-pin, 14x20x2mm PQFP package.  
VSC8132 Block DIagram  
OOFN  
DATA[3:0]  
Framing  
RESET  
PARSEL  
and  
SYNC  
Parity  
PARITY  
DI+  
DI–  
DATACLK78  
CLK51  
Clock  
Generation  
1:32  
Demux  
CLKI+  
CLKI–  
CLK38  
DTALARM  
CKALARM  
Alarms  
ALMRESET  
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012  
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com  
Internet: www.vitesse.com  
G52250-0, Rev 3.1  
12/7/00  
Page 1  

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