DataSheet26.com

S2090 PDF даташит

Спецификация S2090 изготовлена ​​​​«AMCC» и имеет функцию, называемую «Differential Crosspoint Switch».

Детали детали

Номер произв S2090
Описание Differential Crosspoint Switch
Производители AMCC
логотип AMCC логотип 

30 Pages
scroll

No Preview Available !

S2090 Даташит, Описание, Даташиты
®
mDEVICE
.coS6P8ECXIF6I9CA3T.2IOGNBPS DIFFERENTIAL CROSSPOINT SWITCH
68 X 69 3.2 GBPS DIFFERENTIAL CROSSPOINT SWITCH
S2090
S2090
et4UFEATURES
he• SiGe BiCMOS Technology
S• 68 x 69 differential crosspoint switch
ta• Broadcast and multicast switching capability
a• Differential 200 mV to 1600 mV input data
.D• Differential 400 mV to 1400 mV
wprogrammable output swing
w• Up to 3.2 Gbps NRZ data rate
w • Power down of individual output drivers
m• Parallel read back function
o• LVTTL configuration controls
.c• Internal 100 line to line terminations on
high-speed differential inputs
• Reconfigurable without disturbing operation
U• Single +3.3 V supply or +2.5 V supply
t4• 9.5 W typical power dissipation with
800 mV output swing
e• Compact 32.5 mm x 32.5 mm 624 pin
CBGA package
e• Complies with Bellcore and ITU-T standards
hAPPLICATIONS
S• Dense Wavelength Division Multiplexing
(DWDM) systems
ta• Internet switches
• Digital video
• Digital demultiplexing
• Microwave or fiber-optic data distribution
• High-speed automatic test equipment
• Datacom or telecom switching
GENERAL DESCRIPTION
The S2090 is a high-speed 68 x 69 differential
crosspoint switch with both full broadcast and
multicast capability. Any of its 68 differential
LVPECL input signal pairs can be connected to any
or all of its 69 differential CML output signal pairs.
The differential logic data path makes the part ideal for
high-speed applications. The differential nature of the
data path is retained throughout the crosspoint struc-
ture to minimize data distortion and to handle NRZ
data rates up to 3.2 Gbps. The high-speed serial in-
puts to the S2090 are internally biased and have inter-
nal 100 line-to-line terminations.
LVTTL configuration controls simplify interfacing to
slower speed circuitry. Once a new configuration has
been entered into the configuration register file, the
S2090 can be completely reconfigured by pulsing
the CONFIGN input.
Figure 1 shows a system block diagram incorporat-
ing the S2090 with other AMCC devices. Figure 2
shows the basic operation of the switch.
aFigure 1. System Block Diagram
w.DS3056
Port Card
S3057
S3057
wS3056
S3052
S3057
S3057
w .comS3052
et4US3056
S3057
S3057
taSheS3056
S3052
S3057
S3057
.DaS3052
wwwPort Card
S2092
S2092
S2092
S2092
Switch Card
00
S2090
Crosspoint
Switch
67 68
S2092
S2092
S2092
S2092
S3056
Port Card
S3057
S3057
S3056
S3052
S3057
S3057
S3052
S3056
S3057
S3057
S3056
S3052
S3057
S3057
S3052
Port Card
May 31, 2001 / Revision NC
1









No Preview Available !

S2090 Даташит, Описание, Даташиты
S2090
68 X 69 3.2 GBPS DIFFERENTIAL CROSSPOINT SWITCH
Figure 2. Functional Block Diagram
DIN0P
DIN0N
DIN67P
DIN67N
RDACTN
CONFIGN
RDCFGN
OADDR[6:0]
LOADN
CSN
Diff.
LVPECL
Input
Buffers
136
68 x 69
Differential
Crosspoint
138 Diff.
CML
Output
Buffers
552
7 7:69
Decode
EN
69
Active Configuration Latch
552
69 x 8
Configuration
Register File
7
DOUT0P
DOUT0N
DOUT68P
DOUT68N
VADJUST6
VADJUST5
VADJUST4
VCSHIGH2
VADJUST3
VADJUST2
VADJUST1
VCSHIGH1
RDATA[7:0]
RESETN
IADDR[6:0]
OE
2 May 31, 2001 / Revision NC









No Preview Available !

S2090 Даташит, Описание, Даташиты
68 X 69 3.2 GBPS DIFFERENTIAL CROSSPOINT SWITCH
S2090
DATA TRANSFER
For each configured connection between a differen-
tial input pair and an enabled output pair, any data
appearing at the input pair will be passed immedi-
ately through to the output pair.
CONFIGURATION
The S2090 can be selectively configured, either one
output pair at a time, or any number of output pairs
simultaneously. Configuration data is stored in 69
registers, one register for each output pair. The data
in these 69 registers make up the configuration reg-
ister file. As shown in Figure 2, the configuration
data is passed in parallel from all 69 registers to a
latch, which holds the active switch configuration.
This two-stage arrangement allows one or more out-
put pairs to be reconfigured simultaneously. A Chip
Select pin (CSN) is provided to simplify interfacing
this switch to the system microprocessor. When
CSN is inactive, the LOADN, CONFIGN, RDCFGN,
and RDACTN signals will be ignored. Therefore, no
new addresses, configurations, or parallel read-
backs will occur at the configuration register file or
the active matrix. When CSN is active, the
crosspoint will operate as specified.
The S2090 minimizes the configuration time through
the use of the active configuration latch. While the
switch is operational, and prior to the time at which it
must be reconfigured, a new configuration is loaded
into the configuration register file. Once the configu-
ration register file contains the desired connection
information and output pair driver enable informa-
tion, the contents of the registers are transferred in
parallel to the active configuration latch by the
CONFIGN strobe.
To connect an output to a given input, the output to
be configured is selected using the OADDR[6:0]
(OADDR6 = MSB) inputs. See Table 1. With the out-
put configuration register selected, the desired input
selection must be provided in the IADDR[6:0]
(IADDR6 = MSB) inputs. The IADDR[6:0] information
is stored into the selected output configuration regis-
ter by the LOADN strobe. The configuration process
is described by the flow chart in Figure 5.
The active configuration latch can be made transpar-
ent by activating the CONFIGN input. When this is
done, changes strobed into the output pair configu-
ration registers by the LOADN input pair will be
passed immediately to the switch.
The S2090 supports broadcast and multicast opera-
tions: any of the 68 differential inputs can be con-
nected to any or all of the 69 differential outputs.
OUTPUT SWING ADJUST
The S2090 output swing can be adjusted by con-
necting one or more of the VADJUSTx pins to the
VCSHIGHx pins. VADJUST1,2,3 controls the ampli-
tude of outputs [0:31, 67, 68] and should be tied
(when necessary) to VCSHIGH1. See Tables 2 and
2A. VADJUST4,5,6 controls the amplitude of outputs
[32:66] and should be tied (when necessary) to
VCSHIGH2. See Tables 3 and 3A. This type of setup
allows the two sets of outputs specified to run at
different output swings. The user can reduce power
dissipation if one set of outputs is running at a lower
output swing than the other set. Depending on the
system application in which the crosspoint(s) is
used, this implementation can assist if half the out-
puts are required to drive long backplane traces
while the other half of the outputs need to only drive
much shorter backplane traces or optical interfaces.
This allows the user to have multiple transmission
media options available for various system architec-
tures. Note that as the output swing is increased, the
power dissipated by the part is proportionally
increased (see Tables 17 and 18). The typical output
swing range for +3.3 V power supply is from
400 mVpp differential up to 1200 mVpp differential
per Tables 2 and 2A. The typical output swing range
for +2.5 V power supply is from 300 mVpp differen-
tial up to 900 mVpp differential per Tables 3 and 3A.
May 31, 2001 / Revision NC
3










Скачать PDF:

[ S2090.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
S2090Differential Crosspoint SwitchAMCC
AMCC

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск