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PDF SY58019U Data sheet ( Hoja de datos )
| Número de pieza | SY58019U | |
| Descripción | ULTRA-PRECISION DIFFERENTIAL 400mV LVPECL 2:1 MUX | |
| Fabricantes | Micrel Semiconductor | |
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www.DataSheet4U.com
Micrel, Inc.
ULTRA-PRECISION
DIFFERENTIAL 400mV LVPECL 2:1
MUX with INTERNAL TERMINATION
Precision Edge®
Precision ESdY5g8e0®19U
SY58019U
FEATURES
s Guaranteed AC performance over temperature and
voltage:
• DC to 10.7Gbps data throughput
• DC to > 7GHz fMAX (clock)
• < 240ps propagation delay
• < 70ps tr / tf times
s Ultra-low crosstalk-induced jitter: 0.7psRMS
s Ultra-low jitter design:
• < 1psRMS random jitter
• < 10psPP deterministic jitter
• < 10psPP total jitter (clock)
s Unique input termination and VT pin accepts DC-
coupled and AC-coupled inputs (CML, PECL, LVDS)
s 400mV (100k) LVPECL output swing
s Power supply 2.5V ±5% or 3.3V ±10%
s –40°C to +85°C temperature range
s Available in 16-pin (3mm × 3mm) MLF™ package
APPLICATIONS
s Redundant clock distribution
s OC-3 to OC-192 SONET/SDH clock/data distribution
s Loopback
s Fibre Channel distribution
Precision Edge®
DESCRIPTION
The SY58019U is a 2.5V/3.3V precision, high-speed, 2:1
differential MUX capable of handling clocks up to 7GHz
and data up to 10.7Gbps.
The differential input includes Micrel’s unique, 3-pin input
termination architecture that allows customers to interface
to any differential signal (AC- or DC-coupled) as small as
100mV without any level shifting or termination resistor
networks in the signal path. The outputs are 400mV, 100k
compatible, LVPECL, with extremely fast rise/fall times
guaranteed to be less than 70ps.
The SY58019U operates from a 2.5V ±5% supply or a
3.3V ±10% supply and is guaranteed over the full industrial
temperature range of –40°C to +85°C. For applications that
require CML outputs, consider the SY58017U or for 800mV
LVPECL outputs the SY58018U. The SY58019U is part of
Micrel’s high-speed, Precision Edge® product line.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
FUNCTIONAL BLOCK DIAGRAM
TYPICAL PERFORMANCE
IN0
50Ω
VT0
50Ω
/IN0
IN1
50Ω
VT1
50Ω
/IN1
SEL
(TTL/CMOS)
0
MUX
1S
Q0
/Q0
Precision Edge is a registered trademark of Micrel, Inc.
AnyGate is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
M9999-051105
[email protected] or (408) 955-1690
1
10.7Gbps Output
TIME (20ps/div.)
(223Ð1PRBS)
Rev.: B Amendment: /0
Issue Date: May 2005
1 page  
Micrel, Inc.
Precision Edge®
SY58019U
AC ELECTRICAL CHARACTERISTICS(8)
VCC = 2.5V ±5% or 3.3V ±10%; TA= –40°C to +85°C, RL = 50Ω to VCC–2V, unless otherwise stated.
Symbol
Parameter
Condition
Min Typ Max Units
fMAX
tpd
Maximum Operating Frequency
Differential Propagation Delay
VOUT ≥ 200mV
NRZ Data 10.7
Gbps
Clock
7
GHz
IN-to-Q 90
160 240
ps
SEL-to-Q 50
160 350
ps
tpd Tempco Differential Propagation Delay
Temperature Coefficient
75 fs/°C
tSKEW
Input-to-Input Skew Note 9
Part-to-Part Skew Note 10
3 15 ps
100 ps
tJITTER
tr, tf
Data
Random Jitter
Deterministic Jitter
Clock
Cycle-to-Cycle Jitter
Total Jitter
Crosstalk-Induced Jitter
Output Rise/Fall Time
Note 11
Note 12
Note 13
Note 14
Note 15
20% to 80%, at full swing
1 psRMS
10 psPP
1 psRMS
10 psPP
0.7 psRMS
20 40 70 ps
Notes:
8. High frequency AC parameters are guaranteed by design and characterization.
9. Input-to-input skew is the difference in time from an input-to-output in comparison to any other input-to-output. In addition, the input-to-input skew
does not include the output skew.
10. Part-to-part skew is defined for two parts with identical power supply voltages at the same temperature and with no skew of the edges at the
respective inputs.
11. RJ is measured with a K28.7 comma detect character pattern, measured at 2.5Gbps/3.2Gbps.
12. DJ is measured at 2.5Gbps/3.2Gbps, with both K28.5 and 223–1 PRBS pattern.
13. Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, Tn–Tn–1 where T is the time between rising edges of the output
signal.
14. Total jitter definition: with an ideal clock input of frequency ≤ fMAX, no more than one output edge in 1012 output edges will deviate by more than the
specified peak-to-peak jitter value.
15. Crosstalk is measured at the output while applying two similar frequencies that are asynchronous with respect to each other at the inputs.
M9999-051105
[email protected] or (408) 955-1690
5
5 Page 
Micrel, Inc.
Precision Edge®
SY58019U
OUTPUT INTERFACE APPLICATIONS
+3.3V
+3.3V
R1
ZO = 50Ω 130Ω
ZO = 50Ω
For 3.3V, R1 = 250Ω, R2 = 62.5Ω
For 2.5V, R1 = 130Ω, R2 = 82Ω
R2
82Ω
R1
130Ω +3.3V
R2
82Ω
+3.3V
Z = 50Ω
Z = 50Ω
+3.3V
“Source”
50Ω
For 3.3V, Rb = 50Ω
For 2.5V, Rb = 19Ω
Rb
50Ω
“Destination”
VCC
0.01µF
(optional)
Figure 4a. Parallel Thevenin-Equivalent
Termination
+3.3V
Figure 4b. Three-Resistor “Y” Termination
+3.3V
R1
130Ω
ZO = 50Ω
R2
82Ω
Figure 4c. Terminating Unused I/O
RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION
Part Number Function
SY58016L
3.3V 10Gbps Differential CML Line Driver/Receiver
with Internal I/O Termination
SY58017U
Ultra Precision Differential CML 2:1 Mux with
Internal I/O Termination
SY58018U
Ultra Precision Differential LVPECL 2:1 Mux with
Internal Termination
SY58025U
10.7Gbps Dual 2:1 CML Mux with
Internal I/O Termination
SY58026U
5Gbps Dual 2:1 Mux with Internal Termination
SY58027U
SY58051U
10.7Gbps Dual 2:1 400mV LVPECL Mux with
Internal Termination
10.7Gbps AnyGate® with Internal Input and Output
Termination
SY58052U
10Gbps Clock/Data Retimer with 50Ω Input Termination
MLF™ Application Note
HBW Solutions New Products and Applications
Data Sheet Link
http://www.micrel.com/product-info/products/sy58016l.shtml
http://www.micrel.com/product-info/products/sy58017u.shtml
http://www.micrel.com/product-info/products/sy58018u.shtml
http://www.micrel.com/product-info/products/sy58025u.shtml
http://www.micrel.com/product-info/products/sy58026u.shtml
http://www.micrel.com/product-info/products/sy58027u.shtml
http://www.micrel.com/product-info/products/sy58051u.shtml
http://www.micrel.com/product-info/products/sy58052u.shtml
www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf
www.micrel.com/product-info/products/solutions.shtml
M9999-051105
[email protected] or (408) 955-1690
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet SY58019U.PDF ] | |
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