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PDF VSC830 Data sheet ( Hoja de datos )
| Número de pieza | VSC830 | |
| Descripción | 2.7Gb/s Asynchronous Dual 2x2 Crosspoint Switch | |
| Fabricantes | Vitesse Semiconductor | |
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Hay una vista previa y un enlace de descarga de VSC830 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
VSC830
2.7Gb/s Asynchronous
Dual 2x2 Crosspoint Switch
Features
• Dual 2x2 Crosspoint Switch
• 2.7Gb/s NRZ Data Bandwidth, 2.7GHz Signal
Bandwidth
• 50Ω Source Terminated Output Driver and
Programmable Input Terminations
• Single 3.3V Supply, 1W Typical Dissipation
• PECL/TTL-Compatible Control Inputs
• Power-Down Capability for Unused Outputs
• PECL-Compatible High-Speed I/O
• Compact 44-Pin PQFP, 10x10mm Package
General Description
The VSC830 is a monolithic dual 2x2 asynchronous crosspoint switch, designed for critical signal path
control and buffering applications, such as loop-back, protection switching, and multi-channel backplane
driver/receivers. Signal path delay is tightly matched between each output channel to eliminate the need for
delay path compensation when switching between signal sources.
The crosspoint function is based on a multiplexer tree architecture. Each 2x2 switch can be considered as a
pair of 2:1 multiplexers that share the same inputs. The signal path through each switch is fully differential and
delay matched. The signal path is unregistered, so there are no restrictions on the phase, frequency, or signal
pattern at each input. Unused outputs can be independently powered off, thereby eliminating power on unused
sections (see Design Guide section in this data sheet). The switch control inputs can be configured to be com-
patible with PECL or TTL levels. The high-speed input and output levels are nominally PECL compatible and
capable of interfacing with a wide range of termination schemes.
VSC830 Symbol Diagram
S1,S2
A1
A2
Y1
Y2
S1,S2
A1
A2
Y1
Y2
G52192-0, Rev 4.0
05/23/01
© 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
Data Sheet
VSC830
2.7Gb/s Asynchronous
Dual 2x2 Crosspoint Switch
AC Characteristics
Table 3: AC Timing
Symbol
Parameter
Min Typ Max Units
FRATE
Signal path data rate
2.7 Gb/s
FBW Signal path bandwidth (-3dB)
2.7 GHz
TSKW
TCON
tR, tF
tjP
Channel to channel delay skew
Switch configuration setup time(1)
High-speed output rise/fall times, 20% to 80%(2)
Signal path added jitter, peak-peak(1)
50
1
150
40
ps
ns
ps
ps
NOTES: (1) Tested on a sample basis only, with 223-1 PRBS data, input signal rise/fall time < 150ps. Value stated in table is added
to measurement system jitter. (2) Input signal rise/fall time < 150ps, measured using an alternating 1, 0 pattern.
DC Characteristics (All characteristics are over the specified operating conditions)
Table 4: Power Supply
Symbol
Parameter
Min Typ Max
ICC Total VCC(P) supply current
PD
Power dissipation per output
(Y1A±, Y2A±, Y1B±, Y2B±)
350
300
PT Total chip power (all outputs powered on)
1.2
NOTE: Specified with outputs terminated, 100Ω between true and complement, VCC = 3.45V.
Table 5: Select Input Levels—TTL Mode
Units
mA
mW
W
Conditions
Symbol
VIH
VIL
IIH
IIL
Parameter
Input HIGH voltage (TTL)
Input LOW voltage (TTL)
Input HIGH current (TTL)
Input LOW current (TTL)
Min Typ Max Units
Conditions
2.0 V
0.8 V
500 µA VIN = 2.4V
-500 µA VIN = 0.5V
Table 6: Select Input Levels—PECL Mode
Symbol
VIH
VIL
IIH
IIL
Parameter
Input HIGH voltage (PECL)
Input LOW voltage (PECL)
Input HIGH current (PECL)
Input LOW current (PECL)
Min Typ Max Units
Conditions
VCC-
1.0
VCC-
1.6
500
-500
V
V
µA VIN = 2.5V
µA VIN = 1.5V
Table 7: Control Inputs
Symbol
RPEMODE
Parameter
PEMODE pin impedance
Min Typ Max Units
3100
Ω
Conditions
G52192-0, Rev 4.0
05/23/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Internet: www.vitesse.com
Page 5
5 Page 
VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
VSC830
2.7Gb/s Asynchronous
Dual 2x2 Crosspoint Switch
Ordering Information
The order number for this product is formed by a combination of the device number, and package type.
VSC830
XX
Device Type
2.7Gb/s Asynchronous
Dual 2x2 Crosspint Switch
Package
QZ: 44-Pin PQFP, 10 x 10mm Body
Evaluation Boards
An evaluation board for the VSC830 is available. Please contact your local sales representative.
Notice
Vitesse Semiconductor Corporation (“Vitesse”) provides this document for informational purposes only. All information in this document, includ-
ing descriptions of features, functions, performance, technical specifications and availability, is subject to change without notice at any time. Noth-
ing contained in this document shall be construed as extending any warranty or promise, express or implied, that any Vitesse product will be
available as described or will be suitable for or will accomplish any particular task.
Vitesse products are not intended for use in life support appliances, devices or systems. Use of a Vitesse product in such applications without written
consent is prohibited.
G52192-0, Rev 4.0
05/23/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Internet: www.vitesse.com
Page 11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet VSC830.PDF ] | |
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