sy84403bl Micrel Semiconductor, sy84403bl Datasheet

sy84403bl

Manufacturer Part Number

sy84403bl

Description

Ultra Small 3.3v 4.25gbps Cml Low-power Limiting Post Amplifier With Ttl Los

Manufacturer

Micrel Semiconductor

Datasheet

1.SY84403BL.pdf (10 pages)

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General Description

The SY84403BL is the industry’s smallest limiting post

amplifier ideal for compact copper and fiber optic

module 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

SY84403BL quantizes these signals and outputs

typically 800mV

The SY84403BL comes in a tiny 10-pin 2x2 MLF

package, which is unparalleled in the industry. It offers

space savings of 55% or more over typical post amps.

It operates from a single +3.3V ±10% power supply,

over an industrial temperature range of –40°C to

+85°C. With its wide bandwidth and high gain, signals

with data rates up to 4.25Gbps and as small as

10mV

inputs or AC-coupled PECL inputs.

The SY84403BL incorporates a loss-of-signal (LOS)

open-collector TTL output with internal 4.75kΩ pull-up

resistor. A programmable loss-of-signal level set pin

(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 de-asserts the true output signal

without removing the input signal.

All support documentation can be found on Micrel’s

web site at: www.micrel.com.

Typical Performance

May 2009

MLF and MicroLeadFrame are registered trademarks of Amkor Technology.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

can be amplified to drive devices with CML

voltage-limited waveforms.

Ultra Small 3.3V 4.25Gbps CML Low-Power

Features

∑ Available in an ultra small 10-pin (2mm x 2mm)

∑ Multi-rate up to 4.25Gbps operation

∑ 10mV

∑ Low noise 50Ω CML data outputs

∑ Chatter-free Loss-of-Signal (LOS) output

∑ Programmable LOS sensitivity using single

∑ Internal 50Ω data input termination

∑ TTL /EN input allows feedback from LOS

∑ Wide operating range:

∑ Part of Micrel’s new ultra small FOM IC family. For

Applications

∑ 1.062Gbps, 2.125Gbps and 4.25Gbps Fibre

∑ Cable driver

∑ SFF and SFP transceivers

∑ High-gain line driver and line receiver

Markets

∑ Copper interconnect

∑ Datacom and telecom

∑ Storage area network (SAN)

Limiting Post Amplifier with TTL LOS

MLF

– 800mV

– 60ps edge rates

– 1ps

– 10ps

– 3.5dB electrical hysteresis

– OC-TTL output with internal 4.75kΩ pull-up

external resistor

– Single 3.3V ±10% power supply

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

Laser Diode Drivers, see SY84202L or SY84402L

Channel

resistor

package

RMS

input sensitivity

typ. random jitter

typ. deterministic jitter

SY84403BL

differential output swing

hbwhelp@micrel.com

M9999-051509-A

or (408) 955-1690

Related parts for sy84403bl

sy84403bl Summary of contents

Page 1

... SY84403BL quantizes these signals and outputs typically 800mV voltage-limited waveforms. PP The SY84403BL comes in a tiny 10-pin 2x2 MLF package, which is unparalleled in the industry. It offers space savings of 55% or more over typical post amps. It operates from a single +3.3V ±10% power supply, over an industrial temperature range of –40°C to +85° ...

Page 2

Typical Application Functional Block Diagram May 2009 2 hbwhelp@micrel.com M9999-051509-A or (408) 955-1690 ...

Page 3

... Ordering Information Part Number SY84403BLMGTR Notes: 1. Contact factory for die availability. Dice are guaranteed at T Pin Configuration Pin Description Pin Number Pin Name 1, 2 DIN, /DIN 3 VREF 4 LOSLVL 5 GND Exposed Pad 6 LOS 8, 7 DOUT, /DOUT 9 VCC 10 /EN May 2009 Package Operating ...

Page 4

Absolute Maximum Ratings Supply Voltage (V ) ....................................... 0V to 4.0V CC /EN, LOSLVL Voltage.......................................... REF Current.............................................................±1mA LOS Current.............................................................±5mA DOUT, /DOUT Current ..........................................±25mA DIN, /DIN Current ..................................................±10mA Lead Temperature (soldering, 20sec.) .................. 260°C Storage Temperature (T ) ...

Page 5

AC Electrical Characteristics V = +3.0V to +3.6V –40°C to +85° Symbol Parameter t t Output Rise/Fall Time r, f (20% to 80%) t Deterministic JITTER Random V Differential Input Voltage Swing ...

Page 6

Typical Operating Characteristics R (kΩ) LOSLVL May 2009 R (kΩ) LOSLVL 6 hbwhelp@micrel.com M9999-051509-A or (408) 955-1690 ...

Page 7

... The input amplifier allows input signals as large as 1800mV . Input signals are linearly amplified PP with a typically 38dB differential voltage gain. Since limiting amplifier, the SY84403BL outputs typically 800mV voltage-limited waveforms for input signals PP that are greater than 20mV . Applications requiring ...

Page 8

Figure 2. Input Structure May 2009 Figure 1. V and V Definition IS ID Figure 3. Output Structure 8 M9999-051509-A hbwhelp@micrel.com or (408) 955-1690 ...

Page 9

Figure 4. Power Supply Current Measurement Related Product and Support Documentation Part Number Function Application Notes Notes on Sensitivity and Hysteresis in Micrel Post Amplifier May 2009 Figure 5. LOS Output Structure Figure 6. LOSLVL Setting Circuit Datasheet Link www.micrel.com/product-info/app_hints+notes.shtml ...

Page 10

Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...

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