SY55858UHGTR MICREL [Micrel Semiconductor], SY55858UHGTR Datasheet

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SY55858UHGTR

Manufacturer Part Number
SY55858UHGTR
Description
2.5V/3.3V 3.0GHZ DUAL 2 x 2 CML CROSSPOINT SWITCH W/INTERNAL TERMINATION
Manufacturer
MICREL [Micrel Semiconductor]
Datasheet
Micrel, Inc.
SuperLite is a trademark of Micrel, Inc.
M9999-110705
hbwhelp@micrel.com or (408) 955-1690
FEATURES
Guaranteed AC parameters over temperature:
• f
• t
• Within-device skew < 25ps
Non-blocking “switch architecture”
Configurable as dual 2:1 mux, dual 1:2 fanout buffer,
1:4 fanout buffer, quad buffer, or dual 2 x 2 switch
50 compatible outputs
Unique input termination and V
and AC-coupled input signals–CML or PECL
Fully differential inputs/outputs
TTL/CMOS compatible control logic
Wide supply voltage range: 2.3V to 3.6V
Wide operating temperature range: –40 C to +85 C
Available in 32-pin EPAD-TQFP package
MAX
r
/ t
f
< 120ps
> 3.0GHz (3Gbps)
T
pin for DC-coupled
2.5V/3.3V 3.0GH
CROSSPOINT SWITCH
W
/INTERNAL TERMINATION
1
crosspoint switch with a flexible input that accepts CML
or PECL, and a 50
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.
internal termination design that allows access to the
termination network through V
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.
DESCRIPTION
APPLICATIONS
The SY55858U is a low-voltage, high-speed dual 2 x 2
The signal inputs (DA
SONET/SDH optical transport
Backplane redundancy
Add-drop Multiplexers
Z
DUAL 2 x 2 CML
compatible differential CML (current-
0–1
and DB
T
pins. This feature allows
0–1
Rev.: D
Issue Date: November 2005
SuperLite™
) have a unique
SY55858U
SuperLite™
SuperLite™
Amendment: /0
SY55858U

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SY55858UHGTR Summary of contents

Page 1

Micrel, Inc. FEATURES Guaranteed AC parameters over temperature: • f > 3.0GHz (3Gbps) MAX • < 120ps r f • Within-device skew < 25ps Non-blocking “switch architecture” Configurable as dual 2:1 mux, dual 1:2 fanout buffer, 1:4 ...

Page 2

... Ordering Information Package Operating Part Number Type SY55858UHI H32-1 (2) SY55858UHITR H32-1 (3) SY55858UHG H32-1 (2, 3) SY55858UHGTR H32-1 Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. 3. Pb-Free package recommended for new designs. QA0 QA1 DA0 DA0 DA0 DA1 DA1 ...

Page 3

Micrel, Inc. PIN DESCRIPTION Pin Number Pin Name 1 DB1 2 VTB1 3 /DB1 4 SELB0 5 DB0 6 VTB0 7 /DB0 8 SELB1 9, 24 GND 10, 13, 16, 17, 20, 23 VCC 11 /QB0 12 QB0 14 /QB1 ...

Page 4

Micrel, Inc. FUNCTIONAL BLOCK DIAGRAM DA0 V TA0 /DA0 SELA0 DA1 V TA1 /DA1 SELA1 DB0 V TB0 /DB0 SELB0 DB1 V TB1 /DB1 SELB1 INPUT AND OUTPUT STAGE 1.2mA /D0 1.2mA SY55858U ...

Page 5

Micrel ABSOLUTE MAXIMUM RATINGS Symbol V Power Supply Voltage CC V Input Voltage IN V CML Output Voltage OUT T Operating Temperature Range A T Lead Temperature (soldering, 20sec.) LEAD T Storage Temperature Range store Package Thermal Resistance JA (Junction-to-Ambient) ...

Page 6

Micrel, Inc. CML DC ELECTRICAL CHARACTERISTICS V = 2.3V to 3.6V; GND = 0V Symbol Parameter V Differential Input Voltage ID R Differential Input Resistance IN D-to-/D V Input HIGH Voltage IH V Input LOW Voltage IL ...

Page 7

Micrel, Inc. CML OUTPUT TERMINATION APPLICATION All CML inputs accept a CML output from any other member of this family. All CML outputs are source terminated 16mA SY55858U Figure 3. 50 Output Termination INPUT INTERFACE APPLICATIONS ...

Page 8

Micrel, Inc. 32 -PIN EPAD-TQFP (DIE UP) (H32-1) MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no ...

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