vsc834 Vitesse Semiconductor Corp, vsc834 Datasheet

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vsc834

Manufacturer Part Number
vsc834
Description
2.5gb/s 17 X 17 Crosspoint Switch With Input Signal Activity Isa Monitoring
Manufacturer
Vitesse Semiconductor Corp
Datasheet
Datasheet
VSC834
G52247-0, Rev 4.2
02/09/01
Features
General Description
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.
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.
mum signal integrity. Data inputs are terminated on die through 50 resistors connected to V
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
The VSC834 is a monolithic 17x17 asynchronous crosspoint switch designed to carry broadband data
The crosspoint function is based on a multiplexer tree architecture. Each data output is driven by a 17:1
Each output driver is a fully differential switched current driver with on-die back-terminations for maxi-
The parallel interface uses TTL levels, and provides address, data, and control pins that are compatible with
• 17 Input by 17 Output Crosspoint Switch
• 2.5Gb/s NRZ Data Bandwidth
• 42 Gb/s Aggregate Bandwidth
• TTL Compatible P Interface
• Differential PECL Data Inputs
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
VITESSE
SEMICONDUCTOR CORPORATION
A16
A0
P Interface
Internet: www.vitesse.com
Control Logic
• 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
with Input Signal Activity (ISA) Monitoring
Y0
Y16
2.5Gb/s 17x17 Crosspoint Switch
TERM
.
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vsc834 Summary of contents

Page 1

... Differential PECL Data Inputs General Description The VSC834 is a monolithic 17x17 asynchronous crosspoint switch designed to carry broadband data streams 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 ...

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... Figure 1: Detailed Block Diagram: 17x17 Switch Core 17 Program Memory Control Interface DATA[4:0], ADDR[5:0] ALE, CSB, WRB, RDB INTB, MONCLK, CONFIG , the output pairs will pull Internet: www.vitesse.com Datasheet VSC834 Y, YN[16:0] . TERM or 1.3V, but the volt- CC and chip power will be CC G52247-0, Rev 4.2 02/09/01 ...

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... Datasheet VSC834 Programming Interface The switch core is programmed through a parallel interface circuit that allows random reads or writes to the program memory array. The program memory array is buffered to allow multiple programming instructions to be loaded simultaneously with the CONFIG pin. Parallel programing can be clocked 50MHz rate. ...

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... Rx Activity monitor for input A16 Page 4 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION Description ( Logic ‘1’=No activity) Internet: www.vitesse.com Datasheet VSC834 G52247-0, Rev 4.2 02/09/01 ...

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... Datasheet VSC834 AC Characteristics Table 3: Data Path Parameter F Data rate RATE T Input channel delay skew (1) ISKW T Output channel delay skew (2) OSKW High-speed input rise/fall times, 20% to 80% ( High-speed output rise/fall times, 20 Output data eye jitter, peak-peak Note: Unless otherwise stated, all specifications are guaranteed but not tested ...

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... VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION Figure 4: Program Timing T T sWRB hWRB T sCONFIG Description Internet: www.vitesse.com Datasheet VSC834 Min Max Units - ...

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... Datasheet VSC834 DC Characteristics (All Characteristics Are Over The Specified Operating Conditions) Table 5: Power Parameter Description I V supply current CC CC Total chip power ( case supply current with V TERM-V TERM I V supply current with V TERM-E TERM Note: I Specified with outputs terminated with 50 to +2.0V and Chip V ...

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... TERM Case Temperature Operating Range (T).............................................................................................. 0 Junction Temperature Operating Range (T ESD Ratings Proper ESD procedures should be used when handling this product. The VSC834 is rated to the following ESD voltages based on the human body model: 1. All pins are rated at or above 1000V. Page 8 © ...

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... Datasheet VSC834 I/O Equivalent Circuits TERM 50 Pad PECL Input Equivalent Circuit 1.3k Pad Input COM Equivalent Circuit G52247-0, Rev 4.2 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 02/09/01 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com ...

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... Input Signal Activity (ISA) Monitoring Package Pin Descriptions The VSC834 is packaged in a 27x27mm 256 pin ball grid array package. The 256 BGA package is ther- mally enhanced and carries the high-speed signals over controlled impedance lines from the solder ball to the circuit die ...

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... Datasheet VSC834 Y10 Y12 Y14 Y16 VCOML G52247-0, Rev 4.2 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 02/09/01 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION with Input Signal Activity (ISA) Monitoring ...

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... Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION Pin High Speed Data Inputs High Speed Data Outputs J3, J4 J1, K1 P4, P3 Internet: www.vitesse.com Datasheet VSC834 Function Level Data Input PECL Data Input PECL Data Input PECL Data Input PECL ...

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... Datasheet VSC834 Table 9: Pin Identification Signal Name Y16, YN16 P17, P18 ADR0 ADR1 ADR2 ADR3 ADR4 ADR5 ALE INTB RDB WRB CONFIG CSB MONCLK A1, A2, A3, A4, A5, A16, A17, A18, A19, A20, B1, B2, B3, B4, B5, B15, B16, B17, B18, B19, B20, C1, C2, C3, C4, C5, ...

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... Power for output channels 13, 15 R19 Power for output channel 16 Termination power Miscellaneous U15 Slicing level for Y0 - YN16 (even) V5 Slicing level for Y1 - YN15 (odd) V6 Loss of activity hysterisis threshold Internet: www.vitesse.com Datasheet VSC834 Function Level Power GND GND GND GND GND GND GND GND GND GND +2 ...

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... Datasheet VSC834 Package Information BOTTOM VIEW DETAIL DIMENSIONAL REFERENCES REF. MIN. NOM. 1.65 1. 0.65 0.60 26.80 27.00 D 24.13 (BSC 26.80 27.00 24.13 (BSC.) E1 0.65 0. 1.05 1. 256 N aaa ccc e 1.27 TYP. P 0.15 g 0.40 F G52247-0, Rev 4.2 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 02/09/01 Tel: (800) VITESSE • ...

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... Vitesse products are not intended for use in life support appliances, devices or systems. Use of a Vitesse product in such applications without writ- ten consent is prohibited. Page 16 © VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012 Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com VITESSE SEMICONDUCTOR CORPORATION VSC834 UB Package Style UB: 256-pin BGA package Internet: www.vitesse.com Datasheet VSC834 G52247-0, Rev 4.2 02/09/01 ...

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