Instrukcja obsługi Microchip SY89537L


Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Microchip SY89537L (6 stron) w kategorii Niesklasyfikowane. Ta instrukcja była pomocna dla 5 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek

Strona 1/6
3.3V, Precision LVPECL and LVDS
Programmable Multiple Output Bank
Clock Synthesizer and Fanout Buffer
SY89537L Evaluation Board
March 2005
M9999-032205
hbwhelp@micrel.com or (408) 955-1690
General Description
The SY89537L integrated, programmable clock
synthesizer and fanout buffer evaluation board is
designed for convenient setup and quick evaluation of
the device. The evaluation board has AC-coupled
outputs and is optimized to interface directly to 50
test equipment. For increased flexibility, the
SY89537L evaluation board has both an on-board
16.6MHz series resonant crystal, and provisions to
accept an external reference input.
Data sheets and support documentation can be found
on Micrel's web site at: www.micrel.com .
Features
Evaluation board for the 3.3V, precision LVPECL
and LVDS programmable multiple output bank
clock synthesizer and fanout buffer
+3.3V ±10% power supply (+2.5V output capable)
Loop filter configured for lowest total jitter and best
reference spur attenuation
Loop filter reconfigurable for best stability and
ultra-low, cycle-to-cycle jitter
AC-coupled output configuration for direct
interface to 50 equipment
On board dip switches for ease of use
Related Documentation
SY89537L 3.3V, Precision LVPECL and LVDS
Programmable Multiple Output Bank Clock
Synthesizer and Fanout Buffer Data Sheet
____________________________________________________________________________________
Evaluation Board
Micrel, Inc.
SY89537L Evaluation Board
March 2005
M9999-032205
hbwhelp@micrel.com or (408) 955-1690
2
Evaluation Board Description
Crystal and DC-Coupled Reference Inputs
The SY89537L evaluation board is designed to
accept either a reference DC-coupled input or a
crystal, which is mounted on the evaluation board.
The DC-coupled reference input accepts any input
logic standard including single-ended and differential
TTL/CMOS, LVPECL, LVDS, HSTL, and SSTL.
External Loop Filter
The SY89537L features a user configurable external
loop filter. The evaluation board has been configured
for ultra-low total jitter and best reference spur
reduction. The evaluation board can be reconfigured
for best stability and ultra-low, cycle-to-cycle jitter by
substituting the pole capacitor C5 with a 100pF
capacitor.
AC-Coupled Output
The SY89537L is packaged in a 44-pin MLF™. The
SY89537L evaluation board is designed to operate
from a +3.3V or +2.5V source to power the output
buffers and from a +3.3V source to power the chip
core. The LVPECL and LVDS outputs are configured
in AC-coupled configuration designed to drive 50
equipment.
Micrel, Inc.
SY89537L Evaluation Board
March 2005
M9999-032205
hbwhelp@micrel.com or (408) 955-1690
3
Evaluation Board
Power Supply V
CCA
,
V
CCD
V
CCO
GND
3.3V Core, 2.5V Output +3.3V +2.5V 0V
3.3V Core, 3.3V Output +3.3V +3.3V 0V
Table 1. AC-Coupled Evaluation Board Power Supply Connection
C5 (pF) Configuration
1000 Ultra-low total jitter and best spur reduction (default)
100 Ultra-low cycle-to-cycle jitter
Table 2. Loop Filter Configuration


Specyfikacje produktu

Marka: Microchip
Kategoria: Niesklasyfikowane
Model: SY89537L

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