SY55857LKGTR MICREL [Micrel Semiconductor], SY55857LKGTR Datasheet

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SY55857LKGTR

Manufacturer Part Number
SY55857LKGTR
Description
3.3V, 2.5Gbps ANY INPUT-to-LVPECL DUAL TRANSLATOR
Manufacturer
MICREL [Micrel Semiconductor]
Datasheet
Micrel, Inc.
SuperLite is a trademark of Micrel, Inc.
M9999-082306
hbwhelp@micrel.com or (408) 955-1690
FEATURES
APPLICATIONS
Input accepts virtually all logic standards:
• Single-ended: SSTL, TTL, CMOS
• Differential: LVDS, HSTL, CML
Guaranteed AC parameters over temperature:
• f
• t
• Within-device skew < 50ps
• Propagation delay < 400ps
Low power: 46mW/channel (typ)
3.0V to 3.6V power supply
100K LVPECL outputs
Flow-through pinout and fully differential design
Two channels in a 10-pin (3mm 3mm) MSOP
package
High-speed logic
Data communications systems
Wireless communications systems
Telecom systems
MAX
r
/ t
f
< 200ps
> 2.5Gbps (2.5GHz toggle)
3.3V, 2.5Gbps
ANY INPUT-to-LVPECL
DUAL TRANSLATOR
1
translator optimized to accept any logic standard from
single-ended TTL/CMOS to differential LVDS, HSTL, or
CML and translate it to LVPECL. Translation is
guaranteed for speeds up to 2.5Gbps (2.5GHz toggle
frequency). The SY55857L does not internally terminate
its inputs, as different interfacing standards have different
termination requirements.
site at www.micrel.com.
DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
The SY55857L is a fully differential, high-speed dual
All support documentation can be found on Micrel’s web
Any IN
Any IN
/D0
/D1
D0
D1
CH0
CH1
/Q0
/Q1
Q0
Q1
LVPECL OUT
LVPECL OUT
Rev.: E
Issue Date: August 2006
SuperLite™
SuperLite™
SY55857L
SuperLite™
Amendment: /0
SY55857L

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SY55857LKGTR Summary of contents

Page 1

Micrel, Inc. FEATURES Input accepts virtually all logic standards: • Single-ended: SSTL, TTL, CMOS • Differential: LVDS, HSTL, CML Guaranteed AC parameters over temperature: • f > 2.5Gbps (2.5GHz toggle) MAX • < 200ps r f • ...

Page 2

... K10-1 (2) SY55857LKITR K10-1 (3) SY55857LKG K10-1 (2, 3) SY55857LKGTR K10-1 Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. 3. Pb-Free package recommended for new designs. Description Channel 0 Differential Inputs (clock or data). See Figure 2 for input structure. See “Input Interface” section for typical interface recommendations. ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Power Supply Voltage (V ) ...................... –0.5V to +6.0V CC Input Voltage (V ) ............................... –0. Output Current (I ) OUT Continuous ............................................................. 50mA Surge .................................................................... 100mA Lead Temperature (soldering, 20 sec.) ...

Page 4

Micrel, Inc. AC ELECTRICAL CHARACTERISTICS V = 3.3V 10 – + Symbol Parameter f Maximum Operating Frequency MAX Note 6 t Propagation Delay PD t Within-Device-Skew (Differential) SKEW Part-to-Part Skew (Differential) t ...

Page 5

Micrel, Inc. FUNCTIONAL DESCRIPTION Establishing Static Logic Inputs Do not leave unused inputs floating. Tie either the true or complement inputs to ground, but not both. A logic zero is achieved by connecting the complement input to ground with the ...

Page 6

Micrel, Inc. INPUT INTERFACE CC(DRIVER) CC(857) CC(DRIVER) TTL D LVTTL /D SY55857L 2.5k 1% Figure 3. 3.3V “TTL” CC(DRIVER) CC(857) CC(DRIVER) D PECL /D SY55857L —2V CC Figure 6. ...

Page 7

Micrel, Inc. LVPECL OUTPUT TERMINATION LVPECL output have very low output impedance (open emitter), and small signal swing which results in low EMI. LVPECL is ideal for driving 50 impedance transmission lines. There are several techniques in terminating the LVPECL ...

Page 8

Micrel, Inc. 10-PIN MSOP (K10-1) MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is ...

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