Microchip SY88083L Bedienungsanleitung
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SY88083L
1G to 12.5G Limiting Post Amplifier with
Digital Offset Correction
Revision1.0
.
Micrel Inc. • 2180 Fortune Drive • SanJose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
November
8, 2013
Revision 1.0
HBWhelp@micrel.comor (408) 955-1690
General Description
The SY88083Llimiting post amplifier is designed for use in
fiber-optic receivers for continuous mode, multi-rate
applications from 1Gbps to 12.5Gbps.
The SY88083Lcontains a high-bandwidth, high-sensitivity
input stage with user-programmable,wide-range SD
assert/LOS de-assert threshold levels, which enables
optimized system reach. Typically, 4dB of electrical
hysteresis is provided to minimize LOS or SD chattering
caused bynoisy input signals. A logic level control pin is
provided to enableuser selection of an open-collector,
TTL-compatible LOS or SD status indication signal with an
external 5kΩto 10kΩpull-up resistor.
The SY88083Lprovides fasterSD assert and LOS de-
assert times than typical continuous mode devices over
the entire differential input voltage range of 10mV
PP
to
1800mV
PP
.
The SY88083Linput stage also provides a user-selectable
digital offset correction (DOC) function to automatically
compensate for internal device offsets in the high-speed
data path.
The SY88083Lprovides integrated 50Ωinput and output
impedances to optimize the high-speed signal paths and
reduce component count. A TTL-compatible JAM input is
provided to enable a SQUELCH functionby feeding back
the LOS or SD signal. The JAM input disables only the
post amplifier output.
The SY88083Loperates from a single +3.3V power
supply, over temperatures ranging from –40°C to +85°C.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com
.
Features
•Multi-rate operation from 1.0625Gbps to 12.5Gbps
•Selectable digital offset correction for internal offset
compensation in the high-speed data path
•Wide differential input range (10mV
PP
to 1800mV
PP
)
•Wide SD de-assert or LOS assert threshold range
−4.5mV
PP
to 30mV
PP
−4dB typical electrical hysteresis
•Fast SD assert and LOS de-assert times
−1µs typical; 2µs maximum
•Selectable LOS or SD status signal indicator
•TTL-compatible JAM input with internal pull-up
•Low-noise CML data inputs with integrated 50Ω
termination impedance to internal reference V
REF
•Low-noise CML data outputs with integrated 50Ω
termination impedance
−30ps typical rise/fall times
•Wide range power supply: 3.3V ±10%
•Industrial temperature range: −40°C to +85°C
•Available in a tiny 3mm × 3mm QFN package
Applications
•10G/8G Fibre Channel
•10Gigabit Ethernet
•OTN equipment
•SONET OC192; SDH STM64
•WDM/DWDM systems
Markets
•Fibre Channel storage area networks
•Datacom/Enterprise
•High-performance computing
•Telecom
•Wireless base stations
Produktspezifikationen
| Marke: | Microchip |
| Kategorie: | Nicht kategorisiert |
| Modell: | SY88083L |
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