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參數(shù)資料
| 型號： | VSC835 |
| 廠商： | Vitesse Semiconductor Corporation. |
| 英文描述： | 34x34 Crosspoint Switch with Signal Detection |
| 中文描述： | 34x34交叉點(diǎn)開關(guān)信號檢測 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 174K |
| 代理商： | VSC835 |
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 805/388-3700 FAX: 805/987-5896
Page 1
7/24/00
VITESSE
Datasheet
VSC835
2.5 Gbits/sec
34x34 Crosspoint Switch with Signal Detection
G52270-0, Rev. 4.1
Features
34 Input by 34 Output Crosspoint Switch
2.5 Gbits/sec. NRZ Data Bandwidth
TTL Compatible
μ
P Interface
Differential PECL Data Inputs
On-chip 50
Input Terminations
General Description
The VSC835 is a monolithic 34x34 asynchronous crosspoint switch, designed to carry broadband data
streams at up to 2.5 Gbit/s. The non-blocking switch core is programmed through a parallel port interface that
allows random access programming of each output port. A high degree of signal integrity is maintained 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 34:1
multiplexer tree that can be programmed to one and only one of its 34 inputs, and each data input can be routed
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 and each output channel has an signal monitor function that can be used to identify loss of activity
(LOA). An interrupt pin is provided to signal LOA, after which an external controller can query the chip to
determine the channel(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 ohm resistors terminated 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.
VSC835 Block Diagram
50
Source Terminated PECL Output Drivers
Single 3.3V Supply
14W Maximum Power Dissipation
High Performance 256 BGA Package
Control Logic
μ
P interface
A0
Y0
A33
Y33
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| VSC8476 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:XAUI to XFI 10GE & 10GFC Transceiver |
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