PDF VSC834 Data sheet ( Hoja de datos )

Número de pieza	VSC834
Descripción	2.5Gb/s 17 x 17 Crosspoint Switch
Fabricantes	Vitesse Semiconductor
Logotipo
Hay una vista previa y un enlace de descarga de VSC834 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas
No Preview Available ! www.DataSheet4U.com VITESSE SEMICONDUCTOR CORPORATION Datasheet VSC834 2.5Gb/s 17x17 Crosspoint Switch with Input Signal Activity (ISA) Monitoring Features • 17 Input by 17 Output Crosspoint Switch • 2.5Gb/s NRZ Data Bandwidth • 42 Gb/s Aggregate Bandwidth • TTL Compatible µP Interface • Differential PECL Data Inputs • On-chip 50Ω Input Terminations • 50Ω Source Terminated PECL Output Drivers • Single 3.3V Supply • 9W Maximum Power Dissipation • High Performance 256 Pin BGA Package 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 50Ω resistors connected to VTERM. 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 A0 Y0 A16 Control Logic µP Interface Y16 G52247-0, Rev 4.2 02/09/01 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected] Internet: www.vitesse.com Page 1 1 page VITESSE SEMICONDUCTOR CORPORATION Datasheet VSC834 2.5Gb/s 17x17 Crosspoint Switch with Input Signal Activity (ISA) Monitoring AC Characteristics Table 3: Data Path Parameter Description FRATE TISKW TOSKW tR, tF tR, tF tjP Data rate Input channel delay skew (1) Output channel delay skew (2) High-speed input rise/fall times, 20% to 80% (3) High-speed output rise/fall times, 20% to 80% Output data eye jitter, peak-peak, 223 PRBS (4) Min Typ Max Units - - 2.5 Gb/s - 300 - ps - 300 - ps - - 150 ps - - 150 ps - - 100 ps Note: Unless otherwise stated, all specifications are guaranteed but not tested. Note 1: Skew between any two input channels to a given output. Note 2: Skew between any two output channels from the same input channel. Note 3: Required for high-speed output rise/fall spec at FRATE=2.5 Gbits/s. For lower rate signals, use 0.375/FRATE Note 4: Broadband jitter added to a jitter-free signal; jitter is primarily in the form of ISI for random data Figure 2: Interrupt Timing (Change in Monitor State Registers) MONCLK Monitor State Monitor State Reg INTB CSB RDB ADDR[5:0] DATA[4:0] TsRDB ThRDB TtsDATA Figure 3: Interrupt Timing (No Change in Monitor State Registers) MONCLK Monitor State Monitor State Reg INTB G52247-0, Rev 4.2 02/09/01 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected] Internet: www.vitesse.com Page 5 5 Page Datasheet VSC834 VITESSE SEMICONDUCTOR CORPORATION 2.5Gb/s 17x17 Crosspoint Switch with Input Signal Activity (ISA) Monitoring Figure 6: Pinout Diagram 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 A0 A6 A12 ALE MONCLK ADR0 ADR3 ADR2 ADR4 A2 A4 A8 A10 A14 A16 ADR1 ADR5 Y0 Y2 Y4 Y6 Y8 Y10 Y12 Y14 Y16 VCC VEE VTERM BOTTOM VIEW Y3 Y5 Y9 Y11 Y15 VCOML A3 A5 A9 A11 A15 D2 INTB D1 D0 VHYS VCOMR D3 RDB CONFIG D5 D4 WRB CSB A1 A7 A13 BALL 2 1 GRID INDEX A B C D E F G Y1 H J Y7 K L M N Y13 P R T U V W Y G52247-0, Rev 4.2 02/09/01 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected] Internet: www.vitesse.com Page 11 11 Page

Páginas	Total 16 Páginas
PDF Descargar	[ Datasheet VSC834.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
VSC830	2.7Gb/s Asynchronous Dual 2x2 Crosspoint Switch	Vitesse Semiconductor
VSC834	2.5Gb/s 17 x 17 Crosspoint Switch	Vitesse Semiconductor
VSC835	34x34 Crosspoint Switch	Vitesse Semiconductor
VSC837	3.2Gb/s 68x68 Crosspoint Switch	Vitesse Semiconductor

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar