Használati útmutató Microchip SY58012U
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2020 Microchip Technology Inc.DS20006319B-page 1
SY58012U
Features
•Precision 1:2, 800 mV LVPECL Fanout Buffer
•Guaranteed AC Performance over Temperature
and Voltage:
->5 GHz fMAX (Clock)
-<110 ps Rise/Fall Time
-<260 ps Propagation Delay
-<15 ps Max Skew
•Low Jitter Design:
-60 fsRMS Phase Jitter
•Accepts an Input Signal as Low as 100 mV
•Unique Input Termination and VT Pin Accepts DC-
and AC-Coupled Differential Inputs (LVPECL,
LVDS and CML)
•800 mV (100k) LVPECL Output Swing
•2.5V ±5% or 3.3V ±10% Power Supply Operation
•Industrial Temperature Range: –40°C to +85°C
•Available in a 16-Lead 3 mm x 3 mm QFN
Package
Applications
•All SONET and GigE Clock Distribution
•Fibre Channel Clock and Data Distribution
•Backplane Distribution
•High-End, Low Skew, Multiprocessor
Synchronous Clock Distribution
General Description
The SY58012U is a 2.5V/3.3V precision, high-speed,
fully differential 1:2 LVPECL fanout buffer. Optimized to
provide two identical output copies with less than 15 ps
of skew, the SY58012U can process clock signals as
fast as 5 GHz or 5 Gbps data.
The differential input includes Microchip’s unique, 3-pin
input termination architecture that interfaces to
LVPECL, LVDS or CML differential signals,
(AC-coupled or DC-coupled) as small as 100 mV
without any level-shifting or termination resistor
networks in the signal path. For AC-coupled input
interface applications, an on-board output reference
voltage (VREF-AC) is provided to bias the VT pin. The
outputs are 100k LVPECL compatible, with extremely
fast rise/fall times guaranteed to be less than 110 ps.
The SY58012U operates from a 2.5V ±5% supply or
3.3V ±10% supply and is guaranteed over the full
industrial temperature range (–40°C to +85°C). For
applications that require faster rise/fall times, or greater
bandwidth, consider the SY58013U 1:2 fanout buffer
with 400 mV output swing, or the SY58011U 1:2 CML
(400 mV) fanout buffer. The SY58012U is part of
Microchip’s high-speed, Precision Edge®product line.
Package Type
SY58012U
3 mm x 3 mm QFN-16 (M)
(Top View)
13141516
12
11
10
9
1
2
3
4
8765
IN
VT
VREF-AC
/IN
Q0
/Q0
/Q1
Q1
VCC
GND
GND
VCC
VCC
GND
GND
VCC
5 GHz 1:2 LVPECL Fanout Buffer/Translator
with Internal Input Termination
Termékspecifikációk
| Márka: | Microchip |
| Kategória: | nincs kategorizálva |
| Modell: | SY58012U |
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