sy55857l Micrel Semiconductor, sy55857l Datasheet

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sy55857l

Manufacturer Part Number
sy55857l
Description
Sy55857l 3.3v, 2.5gbps Any Input-to-lvpecl Dual Translator
Manufacturer
Micrel Semiconductor
Datasheet

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Micrel Inc
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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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sy55857l Summary of contents

Page 1

... ANY INPUT-to-LVPECL DUAL TRANSLATOR DESCRIPTION The SY55857L is a fully differential, high-speed dual 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) ...

Page 2

... Supply Voltage. Typically connect to +3.3V 10% supply. Bypass with 0.01 F 0.1 F low ESR capacitors. 2 (1) Operating Package Range Marking Industrial 857L Industrial 857L Industrial 857L with Pb-Free bar line indicator Pb-Free Industrial 857L with Pb-Free bar line indicator Pb-Free = Electricals only. A SuperLite™ SY55857L Lead Finish Sn-Pb Sn-Pb NiPdAu NiPdAu ...

Page 3

... Min Typ Max 100 200 V CC –0.3 Min Typ Max V –1.945 V –1.820 V –1.695 –1.145 V –1.020 V –0.895 550 800 1100 1600 SuperLite™ SY55857L Units 3 Units Units uses JB ...

Page 4

... OUT 4 Min Typ NRZ Data 2.5 Clock 2.5 NRZ Data 1.25 Clock 1. output edges will deviate DIFF_IN V 1600mV (Typ.) DIFF_OUT Figure 1b. Differential Voltage Swing SuperLite™ SY55857L Max Units Gbps GHz Gbps GHz 400 200 RMS 200 ...

Page 5

... See “Input Interface” section. Input Levels LVDS, CML and HSTL differential signals may be connected directly to the D inputs. Depending on the actual worst case voltage seen, performance of SY55857L varies as per the following table: Input Voltage Minimum Range Voltage Swing ...

Page 6

... CC D HSTL SY55857L / Figure 7. HSTL 102 LVDS 1% SY55857L /D Figure 10. LVDS 6 SuperLite™ SY55857L 2. 2.5V D LVTTL /D SY55857L 2.5k 1% Figure 5. 2.5V “TTL” CC(DRIVER) D 102 CML 1% /D SY55857L 3.92k 3.92k 1% 1% Figure 8. CML-AC Coupled Short Lines V DDQ V CC 105 105 1% 1% ...

Page 7

... For +2.5V systems 250 , 1.25k , R4 = 1.2k . For +3.3V systems 130 , 1. Unused output pairs (Q and /Q) may be left floating. +3.3V “destination” (optional 0. +3.3V 130 130 62.5 Figure 15. Terminating Unused I/O SuperLite™ SY55857L +3.3V – ...

Page 8

... Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify M9999-082306 hbwhelp@micrel.com or (408) 955-1690 + 1 (408) 474-1000 FAX WEB Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated. 8 Rev. 00 http://www.micrel.com SuperLite™ SY55857L ...

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