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VSC830 の電気的特性と機能

VSC830のメーカーはVitesse Semiconductorです、この部品の機能は「2.7Gb/s Asynchronous Dual 2x2 Crosspoint Switch」です。


製品の詳細 ( Datasheet PDF )

部品番号 VSC830
部品説明 2.7Gb/s Asynchronous Dual 2x2 Crosspoint Switch
メーカ Vitesse Semiconductor
ロゴ Vitesse Semiconductor ロゴ 




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VSC830 Datasheet, VSC830 PDF,ピン配置, 機能
www.DataSheet4U.com
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
• 50Source 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





VSC830 pdf, ピン配列
Data Sheet
VSC830
VITESSE
SEMICONDUCTOR CORPORATION
2.7Gb/s Asynchronous
Dual 2x2 Crosspoint Switch
Functional Description
Select
As shown in Figure 1, each output can be treated as a 2:1 multiplexer, with the A1 and A2 inputs common
to both multiplexers. The select input S1 independently controls the state of the multiplexer that drives output
Y1, and select input S2 independently controls the output of Y2.
Figure 1: Select Functional Block Diagram
S1
S2
A1 Y1
Y2
A2
Table 1 specifies the function of the select inputs.
Table 1: Select Function
S1 S2 Y1
0 0 A1
1 0 A2
0 1 A1
1 1 A2
Y2
A1
A1
A2
A2
MODE
The interface level of the select pins, S1 and S2, can be programmed to either TTL or PECL levels by short-
ing the MODE pin to either VCC or VEE. Note that the MODE pin must be tied to either VCC or VEE. The func-
tion of MODE is specified in Table 2.
Table 2: MODE Function
MODE
VEE
VCC
S1, S2
TTL
PECL
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 3


3Pages


VSC830 電子部品, 半導体
VITESSE
SEMICONDUCTOR CORPORATION
2.7Gb/s Asynchronous
Dual 2x2 Crosspoint Switch
Data Sheet
VSC830
Table 8: AInput Levels (Differential PECL)
Symbol
Parameter
Min Typ Max Units
Conditions
VID
VICM
Input differential voltage
Input common-mode voltage
200
VCC-
1.7
1000
VCC-
0.9
mV See Note 1
V
NOTE: (1) Peak-to-peak swing of each side of the differential input.
Table 9: YOutput Levels (Differential PECL)
Symbol
Parameter
Min Typ Max Units
Conditions
VOD1
VOD2
VOCM
Output differential voltage (Data)
Output differential voltage (Clock)
Output common-mode voltage
400 700 1000 mV
400 550 850 mV
VCC-
1.6
VCC-
1.0
V
See Note 1
See Note 2
NOTES: (1) Peak-peak swing of each side of the differential output. 223-1 PRBS data. (2) Peak-to-peak swing of each side of the
differential output. Alternating 1, 0 pattern.
Absolute Maximum Ratings
Power Supply Voltage (VCC) Potential to GND ..............................................................................-0.5V to +4.0V
TTL Input Voltage Applied ................................................................................................... -0.5V to VCC +0.5V
ECL Input Voltage Applied .................................................................................................... -0.5V to VCC +0.5V
Output Current (IOUT) .................................................................................................................................... 50mA
Case Temperature Under Bias (TC) .............................................................................................-55oC to + 125oC
Storage Temperature (TSTG)........................................................................................................-65oC to + 150oC
NOTE: (1) Caution: Stresses listed under “Absolute Maximum Ratings” may be applied to devices one at a time without causing
permanent damage. Functionality at or exceeding the values listed is not implied. Exposure to these values for extended
periods may affect device reliability.
Operating Conditions
Supply voltage (VEE) .......................................................................................................................................... 0V
Supply voltage (VCC) ............................................................................................................................ +3.3V ±5%
Supply voltage (VCCP) .......................................................................................................................... +3.3V ±5%
Operating Range(1) (T) ..................................................................................................................... 0oC to +85oC
NOTE: (1) Lower limit of specification is ambient temperature and upper limit is case temperature.
ESD Ratings
Proper ESD procedures should be used when handling this product. The VSC830 is rated to the following
ESD voltages based on the human body model:
1. All pins are rated at or above 1500V.
Page 6
© VITESSE SEMICONDUCTOR CORPORATION 741 Calle Plano Camarillo, CA 93012
Tel: (800) VITESSE FAX: (805) 987-5896 Email: [email protected]
Internet: www.vitesse.com
G52192-0, Rev 4.0
05/23/01

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共有リンク

Link :


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