Microchip SY58020U Bruksanvisning
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SY58020U
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2024 Microchip Technology Inc. and its subsidiaries DS20006872A-page 1
SY58020U
Features
• Precision 1:4, 400 mV CML Fanout Buffer
• Guaranteed AC Performance Over
Temperature/Voltage:
• > 6 GHz f
MAX
Clock
• < 60 ps t
r
/ t
f
Times
• < 250 ps t
pd
• < 15 ps Max. Skew
• Low-jitter Performance:
• 27 fs
RMS
Typical Additive Phase Jitter
• Accepts an Input Signal as low as 100 mV
• Unique Patented Input Termination and VT Pin
Accepts DC-coupled and AC-coupled Differential
Inputs: LVPECL, LVDS, and CML
• 50Ω Source Terminated CML Outputs
• Power Supply 2.5V ±5% and 3.3V ±10%
• Industrial Temperature Range: –40°C to +85°C
• Available in 3 mm × 3 mm 16-lead VQFN
Package
Applications
• All SONET and All GigE Clock Distribution
• Fibre Channel Clock and Data Distribution
• Backplane Distribution
• Data Distribution: OC-48, OC-48+FEC, XAUI
• High-end, Low Skew, Multiprocessor
Synchronous Clock Distribution
General Description
The SY58020U is a 2.5V/3.3V precision, high-speed,
fully differential 1:4 CML fanout buffer. Optimized to
provide four identical output copies with less than 15 ps
of skew and 27 fs
RMS
of typical additive phase jitter, the
SY58020U can process clock signals as fast as 6 GHz.
The differential input includes Microchip’s unique, 3-pin
input termination architecture that interfaces to
differential LVPECL, LVDS, and CML signals (AC- 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 (V
REF-AC
) is
provided to bias the VT pin. The outputs are optimized
to drive 400 mV typical swing into 50Ω loads, with
extremely fast rise/fall times guaranteed to be less than
60 ps.
The SY58020U 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 LVPECL outputs, consider the
SY58021U or SY58022U 1:4 fanout buffer with 800 mV
and 400 mV output swing, respectively. The SY58020U
is part of Microchip’s high-speed, Precision Edge
®
product line.
Package Type
SY58020U
16-Lead VQFN
6 GHz, 1:4 CML Fanout Buffer/Translator with Internal I/O Termination
SY58020U
DS20006872A-page 2 2024 Microchip Technology Inc. and its subsidiaries
Functional Block Diagram
Typical Application (2 GHz)
Produkspesifikasjoner
| Merke: | Microchip |
| Kategori: | Ikke kategorisert |
| Modell: | SY58020U |
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