DataSheet26.com

SY55858U PDF даташит

Спецификация SY55858U изготовлена ​​​​«Micrel Semiconductor» и имеет функцию, называемую «DUAL 2 x 2 CML CROSSPOINT SWITCH W/INTERNAL TERMINATION».

Детали детали

Номер произв SY55858U
Описание DUAL 2 x 2 CML CROSSPOINT SWITCH W/INTERNAL TERMINATION
Производители Micrel Semiconductor
логотип Micrel Semiconductor логотип 

8 Pages
scroll

No Preview Available !

SY55858U Даташит, Описание, Даташиты
www.DataSheet4U.com
Micrel
2.5V/3.3V 3.0GHZ DUAL 2 x 2 CML
CROSSPOINT SWITCH
W/INTERNAL TERMINATION
SuperLite™
SuperSLYit5e5858U
SY55858U
FEATURES
s Guaranteed AC parameters over temperature:
• fMAX > 3.0GHz (3Gbps)
• tr/ tf < 120ps
• Within-device skew < 25ps
s Non-blocking “switch architecture”
s Configurable as dual 2:1 mux, dual 1:2 fanout buffer,
1:4 fanout buffer, quad buffer, or dual 2 x 2 switch
s 50compatible outputs
s Unique input termination and VT pin for DC-coupled
and AC-coupled input signals–CML or PECL
s Fully differential inputs/outputs
s TTL/CMOS compatible control logic
s Wide supply voltage range: 2.3V to 3.6V
s Wide operating temperature range: –40°C to +85°C
s Available in 32-pin EPAD-TQFP package
DESCRIPTION
SuperLite
The SY55858U is a low-voltage, high-speed dual 2 x 2
crosspoint switch with a flexible input that accepts CML
or PECL, and a 50compatible differential CML (current-
mode logic) output. The non-blocking design allows any
input to connect to any output. Varying the state of the
select inputs allows SY55858U to be used in backup,
fault tolerant, protection and backplane distribution
applications.
The signal inputs (DA0–1 and DB0–1) have a unique
internal termination design that allows access to the
termination network through VT pins. This feature allows
the device to easily interface to other logic standards
such as AC-coupled or DC-coupled PECL/LVPECL
signals. For applications that require a single-channel
2 x 2 crosspoint, consider the SY55854.
PIN CONFIGURATION
DB1
VTB1
/DB1
SELB0
DB0
VTB0
/DB0
SELB1
32 31 30 29 28 27 26 25
1 24
2 23
3 22
4
Top View
21
EPAD-TQFP
5
H32-1
20
6 19
7 18
8 17
9 10 11 12 13 14 15 16
GND
VCC
QA0
/QA0
VCC
QA1
/QA1
VCC
APPLICATIONS
s SONET/SDH optical transport
s Backplane redundancy
s Add-drop Multiplexers
SuperLite is a trademark of Micrel, Inc.
1
Rev.: C Amendment: /1
Issue Date: September2003









No Preview Available !

SY55858U Даташит, Описание, Даташиты
Micrel
FUNCTIONAL BLOCK DIAGRAM
DA0
VTA0
/DA0
SELA0
50
50
DA1
VTA1
/DA1
50
50
SELA1
DB0
VTB0
/DB0
SELB0
50
50
DB1
VTB1
/DB1
50
50
SELB1
0
A0
1
0
A1
1
0
B0
1
0
B1
1
INPUT AND OUTPUT STAGE
VCC
D0
50
1.2mA
VT*
50
/D0
1.2mA
SY55858U
Figure 1. Input Stage
Note 1. See Input Interface Applicationssection for proper input
connection.
2
SuperLite
SY55858U
CML
QA0
/QA0
CML
QA1
/QA1
CML
QB0
/QB0
CML
QB1
/QB1
vcc
5050
Q
/Q
16mA
SY55858U
Figure 2. Output Stage









No Preview Available !

SY55858U Даташит, Описание, Даташиты
Micrel
PIN DESCRIPTION
Pin Number
1
2
Pin Name
DB1
VTB1
3 /DB1
4 SELB0
5 DB0
6 VTB0
7
8
9, 24
10, 13, 16, 17, 20, 23
/DB0
SELB1
GND
VCC
11 /QB0
12 QB0
14 /QB1
15 QB1
18 /QA1
19 QA1
21 /QA0
22 QA0
25 DA0
26 VTA0
27 /DA0
28 SELA1
29 DA1
30 VTA1
31 /DA1
32 SELA0
SuperLite
SY55858U
Pin Function
Channel B1 posititve signal input.
Channel B1 termination center-tap. For CML inputs, leave this pin floating.
Otherwise, see Figures 5a5d in Input Interface Applicationsection.
Channel B1 negative signal input.
Channel B0 output select. TTL/CMOS input.
Channel B0 positive signal input.
Channel B0 termination center-tap. For CML inputs, leave this pin floating.
Otherwise, see Figures 5a5d in Input Interface Applicationsection.
Channel B0 negative signal input.
Channel B1 output select. TTL/CMOS input.
Supply Ground.
Positive supply normally connect to 2.5V, 3.3V, or 5V nominal supply, and
bypass each pin with 0.1µF//0.01µF low ESR capacitors.
Channel B0 negative signal output. 50CML.
Channel B0 positive signal output. 50CML.
Channel B1 negative signal output. 50CML.
Channel B1 positive signal output. 50CML.
Channel A1 negative signal output. 50CML.
Channel A1 positive signal output. 50CML.
Channel A0 negative signal output. 50CML.
Channel A0 positive signal output. 50CML.
Channel A0 positive signal input.
Channel A0 termination center-tap. For CML inputs, leave this pin floating.
Otherwise, see Figures 5a5d in Input Interface Applicationsection.
Channel A0 negative signal input.
Channel A1 output select. TTL/CMOS input.
Channel A1 positive signal input.
Channel A1 termination center-tap. For CML inputs, leave this pin floating.
Otherwise, see Figures 5a5d in Input Interface Applicationsection.
Channel A1 negative signal input.
Channel A1 output select. TTL/CMOS input.
3










Скачать PDF:

[ SY55858U.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
SY55858UDUAL 2 x 2 CML CROSSPOINT SWITCH W/INTERNAL TERMINATIONMicrel Semiconductor
Micrel Semiconductor

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