SY88843VKI Micrel Inc, SY88843VKI Datasheet

SY88843VKI

Manufacturer Part Number

SY88843VKI

Description

IC AMP LIMIT CML TTL SD 10MSOP

Manufacturer

Micrel Inc

Type

Limiting Postamplifierr

Datasheet

1.SY88843VMG.pdf (11 pages)

Specifications of SY88843VKI

Applications

Optical Networks

Mounting Type

Surface Mount

Package / Case

10-MSOP Exposed Pad, 10-HMSOP, 10-eMSOP

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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Download datasheet (122Kb)

Micrel, Inc.

Micro LeadFrame and MLF are trademarks of Amkor Technology

M9999-110905

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

FEATURES

APPLICATIONS

Low noise 50 CML data outputs

Multi-rate up to 3.2Gbps operation

Wide gain-bandwidth product

• 38dB differential gain

• 2GHz 3dB bandwidth

• 800mV

• 60ps edge rates

• 5ps

• 15ps

Chatter-free, Signal-Detect (SD) output

• 4.6dB electrical hysteresis

• OC-TTL output with internal 4.75k pull-up

Programmable SD sensitivity using single external

resistor

Internal 50 data input termination

TTL EN input allows feedback from SD

Wide operating range

• Single 3.3V 10% or 5V 10% power supply

• –40 C to +85 C industrial temperature range

Available in tiny 10-pin EPAD-MSOP and

16-pin MLF™ packages

1.25Gbps and 2.5Gbps Gigabit Ethernet

1.062Gbps and 2.125Gbps Fibre Channel

155Mbps, 622Mbps, 1.25Gbps, and 2.5Gbps SONET/

SDH

Gigabit interface converter (GBIC)

Small form factor (SFF) and small form factor

pluggable (SFP) transceivers

Parallel 10G Ethernet

High-gain line driver and line receiver

resistor

RMS

typ. deterministic jitter

typ. random jitter

output swing

3.3V/5V 3.2Gbps CML LOW-POWER

LIMITING POST AMPLIFIER w/TTL SD

designed for use in fiber-optic receivers. 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 SY88843V

quantizes these signals and outputs typically 800mV

voltage-limited waveforms.

+5V 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 3.2Gbps and as small as

10mVp-p can be amplified to drive devices with CML inputs

or AC-coupled PECL inputs.

collector TTL output with internal 4.75k

programmable, loss-of-signal level set pin (SDLVL) sets the

sensitivity of the input amplitude detection. SD asserts high

if the input amplitude rises above the threshold set by SDLVL

and de-asserts low otherwise. SD can be fed back to the

enable (EN) input to maintain output stability under a loss

of signal condition. EN asserts the true output signal without

removing the input signal. Typically 4.6dB SD hysteresis is

provided to prevent chattering.

complete selection of optical module ICs. The following table

summarizes the differences between devices in Micrel’s

latest family of Limiting Amplifiers.

site at www.micrel.com.

Part Number Input Termination

SY88773V

SY88823V

SY88843V

SY88973V

DESCRIPTION

TYPICAL PERFORMANCE

The SY88843V low-power limiting post amplifier is

The SY88843V operates from a single +3.3V 10% or

The SY88843V incorporates a signal detect (SD), open-

Please see Micrel’s website at www.micrel.com for a

All support documentation can be found on Micrel’s web

Table 1. Limiting Amplifiers Selection Guide

@3.2Gbps 2

Integrated 50

Yes

3.3V, 25°C, 10mV

TIME (50ps/div.)

–1 PRBS, R

LOS

or SD

LOS

LOAD

Input

= 50 to V

Rev.: C

Issue Date: November 2005

pull-up resistor. A

Active LOW

or HIGH Enable

LOW

HIGH

LOW

SY88843V

Amendment: /0

SY88843V

Related parts for SY88843VKI

SY88843VKI Summary of contents

Page 1

Micrel, Inc. FEATURES Multi-rate up to 3.2Gbps operation Wide gain-bandwidth product • 38dB differential gain • 2GHz 3dB bandwidth Low noise 50 CML data outputs • 800mV output swing PP • 60ps edge rates • 5ps typ. random jitter RMS ...

Page 2

Micrel, Inc. FUNCTIONAL BLOCK DIAGRAM 50 /DIN REF SDLVL M9999-110905 hbwhelp@micrel.com or (408) 955-1690 VCC DIN CML Limiting Buffer Amplifer TTL Buffer REF Generator Level Detect 2.8k OC-TTL Buffer GND 2 DOUT /DOUT VCC 25k EN VCC 4.75k SD SY88843V ...

Page 3

... Exposed Pad Exposed Pad DOUT, /DOUT 13, 16 VCC M9999-110905 hbwhelp@micrel.com or (408) 955-1690 (1) Ordering Information Package Part Number Type SY88843VKI K10-2 (2) SY88843VKITR K10-2 SY88843VMI MLF-16 (2) SY88843VMITR MLF-16 (3) SY88843VEY K10-2 (2, 3) SY88843VEYTR K10-2 (3) SY88843VMG MLF-16 (2, 3) SY88843VMGTR MLF-16 Notes: 1. Contact factory for die availability. Dice are guaranteed ...

Page 4

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ....................................... 0V to +7.0V CC EN, SDLVL Voltage ................................................ REF Current ............................................................... 1mA SD Current ................................................................. 5mA DOUT, /DOUT Current ............................................. 25mA DIN, /DIN Current ..................................................... 10mA Storage Temperature ...

Page 5

Micrel, Inc. AC ELECTRICAL CHARACTERISTICS V = 3.0V to 3.6V or 4.5V to 5.5V Symbol Parameter PSRR Power Supply Rejection Ratio t ,t Output Rise/Fall Time r f (20% to 80%) t Deterministic JITTER Random V Differential ...

Page 6

Micrel, Inc. TYPICAL OPERATING CHARACTERISTICS V = 3.3V LOAD 10mV Input @3.2Gbps 2 pp TIME (50ps/div Assert/De-assert SD ID vs. V SDLVL 100 0.2 ...

Page 7

Micrel, Inc. DETAILED DESCRIPTION The SY88843V low-power, limiting post amplifier operates from a single +3.3V 10% or +5V 10% power supply, over an industrial temperature range of – +85 C. Signals with data rates up to 3.2Gbps and ...

Page 8

Micrel, Inc. DATA+ DATA– (DATA+) – (DATA–) VCC 0.1 F REF 50 50 0.1 F DIN 0.1 F /DIN AC-Coupling Capacitors ESD STRUCTURE Figure 2. Input Structure VCC ESD STRUCTURE 16mA GND Figure 4. Power Supply ...

Page 9

Micrel, Inc. TYPICAL APPLICATIONS CIRCUIT From Transimpedance Amp. RELATED PRODUCT AND SUPPORT DOCUMENTATION Part Number Function SY88773V 3.3V/5V 3.2Gbps CML Low-Power, Limiting Post Amplifier w/ TTL LOS SY88823V 3.3V/5V 3.2Gbps CML Low-Power, Limiting Post Amplifier w/ TTL SD SY88843V 3.3V/5V ...

Page 10

Micrel, Inc. 10 LEAD EPAD-MSOP (K10-2) +0.10 -0.10 +0.004 -0.004 M9999-110905 hbwhelp@micrel.com or (408) 955-1690 +0.08 -0.08 +0.003 -0.003 +0.05 -0.05 +0.002 -0.002 +0.15 -0.15 +0.004 -0.004 +0.008 +0.07 -0.008 -0.08 +0.003 +0.003 -0.003 -0.003 +0.15 -0.15 +0.006 -0.006 10 ...

Page 11

Micrel, Inc. 16-PIN Micro LEADFRAME™ (MLF-16) Package Notes: 1. Package meets Level 2 qualification. 2. All parts are dry-packaged before shipment. 3. Exposed pads must be soldered to a ground for proper thermal management. MICREL, INC. 2180 FORTUNE DRIVE SAN ...

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