参数资料
型号: SY55858UHG TR
厂商: Micrel Inc
文件页数: 1/8页
文件大小: 0K
描述: IC CROSSPOINT SWITCH DUAL 32TQFP
标准包装: 1,000
系列: SuperLite®
功能: 交叉点开关
电路: 2 x 2:2
电压电源: 单电源
电压 - 电源,单路/双路(±): 2.3 V ~ 3.6 V
电流 - 电源: 150mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-TQFP 裸露焊盘
供应商设备封装: 32-EPAD-TQFP
包装: 带卷 (TR)
其它名称: SY55858UHGTR
SY55858UHGTR-ND
1
SuperLite
SY55858U
Micrel, Inc.
M9999-110705
hbwhelp@micrel.com or (408) 955-1690
DESCRIPTION
s Guaranteed AC parameters over temperature:
f
MAX > 3.0GHz (3Gbps)
t
r/ 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 50
compatible outputs
s Unique input termination and V
T 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
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 50
compatible 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 (DA
0–1 and DB0–1) have a unique
internal termination design that allows access to the
termination network through V
T 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.
FEATURES
2.5V/3.3V 3.0GHZ DUAL 2 x 2 CML
CROSSPOINT SWITCH
W
/INTERNAL TERMINATION
SuperLite
SY55858U
APPLICATIONS
s SONET/SDH optical transport
s Backplane redundancy
s Add-drop Multiplexers
Rev.: D
Amendment: /0
Issue Date:
November 2005
SuperLite is a trademark of Micrel, Inc.
SuperLite
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