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參數(shù)資料
| 型號： | VSC834UB |
| 英文描述： | Interface IC |
| 中文描述： | 接口IC |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 161K |
| 代理商： | VSC834UB |
VITESSE
Data Sheet
VSC834
2.5Gb/s 17x17 Crosspoint Switch
with Input Signal Activity (ISA) Monitoring
G52247-0, Rev 4.3
06/01/01
Page 1
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano Camarillo, CA 93012
Tel: (800) VITESSE FAX: (805) 987-5896 Email: prodinfo@vitesse.com
Internet: www.vitesse.com
Features
17 Input by 17 Output Crosspoint Switch
General Description
The VSC834 is a monolithic 17x17 asynchronous crosspoint switch designed to carry broadband data
streams at up to 2.5Gb/s. The non-blocking switch core is programmed through a parallel microprocessor inter-
face that allows random access programming of each output port. A high degree of signal integrity is main-
tained through the chip through fully differential signal paths.
The crosspoint function is based on a multiplexer tree architecture. Each data output is driven by a 17:1
multiplexer tree that can be programmed to one and only one of its 17 inputs, and each data input can be pro-
grammed to multiple outputs. The signal path is unregistered, so no clock is required for the data inputs. The
signal path is asynchronous, so there are no restrictions on the phase, frequency, or signal pattern at each input.
Each input channel has an activity monitor function that can be used to identify loss of activity (LOA). An inter-
rupt pin is provided to signal LOA, after which an external controller can query the chip to determine the chan-
nel(s) on which the fault occurred.
Each output driver is a fully differential switched current driver with on-die back-terminations for maxi-
mum signal integrity. Data inputs are terminated on die through 50
resistors connected to V
TERM
.
The parallel interface uses TTL levels, and provides address, data, and control pins that are compatible with
a microprocessor-style interface. The control port provides access to all chip functions, including LOA, and
programming. Program buffering is provided to allow multiple program assignments to be queued and issued
simultaneously via a single configure command.
VSC834 Block Diagram
2.5Gb/s NRZ Data Bandwidth
42 Gb/s Aggregate Bandwidth
TTL Compatible
μ
P Interface
Differential PECL Data Inputs
On-Chip 50
Input Terminations
50
Source Terminated PECL Output Drivers
Single 3.3V Supply
9W Maximum Power Dissipation
High Performance 256-Pin BGA Package
A0
A16
μ
P Interface
Y0
Y16
Control Logic
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VSC835 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:34x34 Crosspoint Switch with Signal Detection |
| VSC837 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:3.2Gb/s 68x68 Crosspoint Switch |
| VSC837UG | 制造商:Vitesse Semiconductor Corporation 功能描述: |
| VSC838 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:3.2Gb/s 36x37 Crosspoint Switch |
| VSC838UG | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:3.2Gb/s 36x37 Crosspoint Switch |
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