Instrukcja obsługi Microchip SY88403BL

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Microchip SY88403BL (12 stron) w kategorii nieskategoryzowany. Ta instrukcja była pomocna dla 18 osób i została oceniona przez 2 użytkowników na średnio 4.0 gwiazdek

SY88403BL

3.3V 4.25Gbps CML Low-Power Limiting

Post Amplifier with TTL LOS

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 9440800 • fax + 1 (408) 41000 • http://www.micrel.com-74-

8November 200

M9999111808--F

hbwhelp@micrel.com or (408) 955-1690

General Description

The SY88403BL is a lowpower limiting post amplifier -

optimized for copper applications. The device

connects to typical transimpedance amplifiers (TIAs).

The linear signal output from TIAs can contain

significant amounts of noise and may vary in

amplitude over time. The SY88403BL quantizes these

signals and outputs typically 800mVPP -voltagelimited

waveforms.

The SY88403BL operates from a single +3.3V ±10%

power supply, over an industrial temperature range of

– 40°C to +85°C. With itswide bandwidth and high

gain, signals with data rates up to 4.25Gbps and as

small as 5mVPP can be amplified to drive devices with

CML inputs or ACcoupled PECL inputs. -

The SY88403BL incorporates a losssignal (LOS) -of-

openpullup -collector TTL output with internal 4.75kΩ -

resistor. A programmable losssignal level set pin -of-

(LOSLVL) sets the sensitivity of the input amplitude

detection. LOS asserts high if the input amplitude falls

below the threshold set by LOSLVL and de-asserts

low otherwise. LOS can be fed back to the enable bar

(/EN) input to maintain output stability under a loss of

signal condition. /EN deasserts the true output signal -

without removing the input signal. Typically, 3.5dB

LOS hysteresis is provided to prevent chattering.

All support documentation can be found on Micrel’s

web site at: www.micrel.com.

Typical Performance

Features

•- Multirate up to 4.25Gbps operation

•5mVPP input sensitivity

• Low noise 50Ω CML data outputs

– 800mVpp output swing

– 60ps edge rates

– 1psRMS typ. random jitter

– 10psPP typ. deterministic jitter

•--- Chatterfree LossofSignal (LOS) output

– 3.5dB electrical hysteresis

– -OCTTL output with internal 4.75kΩ pull-up

resistor

•Programmable LOS sensitivity using single

external resistor

• Internal 50Ω data input termination

• TTL /EN input allows feedback from LOS

• Wide operating range:

– Single 3.3V ±10% power supply

– – Industrial temperature range: 40°C to +85°C

•--- Available in a 10pin EPADMSOP and 16pin QFN

package

Applications

•1.062Gbps, 2.125Gbps and 4.25Gbps Fibre

Channel

• Cable driver

•Small form factor (SFF) and small form factor

pluggable (SFP) transceivers

•- Highgain line driver and line receiver

Markets

• Copper interconnect

• Datacom and telecom

• Storage area network (SAN)

Specyfikacje produktu