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SY89544UMG

Description
Clock Multiplexer 1-OUT 4-IN 1:1 32-Pin QFN EP Tube
File Size866KB,22 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
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SY89544UMG Overview

Clock Multiplexer 1-OUT 4-IN 1:1 32-Pin QFN EP Tube

SY89544UMG Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeClock Multiplexer
Fanout1:1
Number of Outputs per Chip1
Maximum Propagation Delay Time @ Maximum CL (ns)0.51@2.375V to 2.625V
Absolute Propagation Delay Time (ns)0.7
Input Logic LevelCML|LVDS|LVPECL
Output Logic LevelLVDS
Minimum Operating Supply Voltage (V)2.375
Typical Operating Supply Voltage (V)2.5
Maximum Operating Supply Voltage (V)2.675
Maximum Quiescent Current (mA)70
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
PackagingTube
Pin Count32
Standard Package NameQFN
Supplier PackageQFN EP
MountingSurface Mount
Package Height0.85(Max)
Package Length5
Package Width5
PCB changed32
Lead ShapeNo Lead
SY89544U
2.5V, 3.2 Gbps, Differential 4:1 LVDS Multiplexer
with Internal Input Termination
Features
• Selects Among Four Differential Inputs
• Guaranteed AC Performance over Temperature
and Voltage:
- DC-to >3.2 Gbps Data Rate Throughput
- <510 ps In-to-Q t
PD
- <150 ps t
r
/t
f
• Ultra Low-Jitter Design:
- <1 ps
RMS
Random Jitter
- <10 ps
PP
Deterministic Jitter
- <10 ps
PP
Total Jitter (Clock)
- <0.7 ps
RMS
Crosstalk-Induced Jitter
• Unique Input Isolation Design Minimizes
Crosstalk
• Internal Input Termination
• Unique Input Termination and VT Pin Accepts
DC-Coupled and AC-Coupled Inputs (LVDS,
LVPECL, CML)
• 350 mV LVDS Output Swing
• CMOS/TTL-Compatible MUX Select
• Power Supply 2.5V ±5%
• –40°C to +85°C Temperature Range
• Available in 32-Lead (5 mm x 5 mm) QFN
Package
General Description
The SY89544U is a fast, low-jitter, 4:1 differential MUX
with an LVDS-compatible (350 mV) output with
guaranteed data rate throughput of 3.2 Gbps over
temperature and voltage.
The SY89544U differential inputs include a unique,
3-pin internal termination that allows access to the
termination network through a VT pin. This feature
allows the device to easily interface to different logic
standards, both AC- and DC-coupled without external
resistor-bias and termination networks. The result is a
clean, stub-free, low-jitter interface solution.
The SY89544U operates from a single 2.5V supply and
is guaranteed over the full industrial temperature range
(–40°C to +85°C). For applications that require a 3.3V
supply, consider the SY89545L. For applications that
require two differential outputs, consider the
SY89546U or SY89547L. The SY89544U is part of
Microchip’s Precision Edge
®
product family.
Package Type
SY89544U
32-Lead 5x5 QFN (M)
Applications
• SONET/SDH Channel Select
• Fibre Channel Multi-Channel Select
• Gigabit Ethernet Multi-Channel Select
32 31 30 29 28 27 26 25
IN1
VT1
/IN1
VCC
VCC
IN2
VT2
/IN2
VCC
/IN0
VT0
IN0
VCC
SEL0
GND
VCC
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
24
23
22
21
20
19
18
17
VCC
IN3
VT3
/IN3
VCC
SEL1
GND
VCC
United States Patent No. RE44,134
2019 Microchip Technology Inc.
GND
Q
/Q
GND
GND
NC
NC
GND
DS20006174A-page 1

SY89544UMG Related Products

SY89544UMG SY89544UMG-TR
Description Clock Multiplexer 1-OUT 4-IN 1:1 32-Pin QFN EP Tube Clock Multiplexer 1-OUT 4-IN 1:1 32-Pin QFN EP T/R
EU restricts the use of certain hazardous substances Compliant Compliant
ECCN (US) EAR99 5A991.b
Part Status Active Active
HTS 8542.39.00.01 8542.39.00.01
Type Clock Multiplexer Clock Multiplexer
Fanout 1:1 1:1
Number of Outputs per Chip 1 1
Maximum Propagation Delay Time @ Maximum CL (ns) 0.51@2.375V to 2.625V 0.51@2.375V to 2.625V
Absolute Propagation Delay Time (ns) 0.7 0.7
Input Logic Level CML|LVDS|LVPECL CML|LVDS|LVPECL
Output Logic Level LVDS LVDS
Minimum Operating Supply Voltage (V) 2.375 2.375
Typical Operating Supply Voltage (V) 2.5 2.5
Maximum Operating Supply Voltage (V) 2.675 2.675
Maximum Quiescent Current (mA) 70 70
Minimum Operating Temperature (°C) -40 -40
Maximum Operating Temperature (°C) 85 85
Supplier Temperature Grade Industrial Industrial
Packaging Tube Tape and Reel
Pin Count 32 32
Standard Package Name QFN QFN
Supplier Package QFN EP QFN EP
Mounting Surface Mount Surface Mount
Package Height 0.85(Max) 0.85(Max)
Package Length 5 5
Package Width 5 5
PCB changed 32 32
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