SY88053ALMG

SY88053ALMG Datasheet

SY88053AL

Part	Datasheet
SY88053ALMG	SY88053ALMG (pdf)

Related Parts	Information
SY88053ALMG TR	SY88053ALMG TR

PDF Datasheet Preview
SY88053AL 3.3V, 12.5Gbps Limiting Post Amplifier with Programmable Decision Threshold The SY88053AL, limiting post amplifier is designed for use in fiber-optic receivers for applications up to 12.5Gbps. It features a decision threshold control that can be used for offset compensation or to optimize the Bit Error Rate BER in noisy applications as WDM where optical amplifiers such as EDFAs and Raman amplifier are used. This device connects to typical transimpedance amplifiers TIAs . The signal from TIAs can contain significant amounts of noise unevenly distributed between its top and bottom rails due to the Amplified Spontaneous Emission ASE noise generated by the optical amplifiers. In order to optimize the BER in such noisy conditions, the decision threshold between bit 1 and bit 0 needs to be moved to the rail that contains less noise. An external voltage applied at the VTHP pin on the SY88053AL will move the crossing point up and down, from 20% to 80%, to achieve the best BER. The SY88053AL operates from a single +3.3V power supply, over temperatures ranging from to +85oC, and can detect and amplify signals up to 12.5Gbps and amplitude as low as 15mVPP. The SY88053AL generates a Loss-of-Signal LOS open-collector TTL output. A programmable Loss-ofSignal 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. The enable input /EN deasserts the true output signal without removing the input signal. The LOS output can be fed back to the /EN input to implement the squelch function that maintains output stability under a loss-of-signal condition. All support documentation can be found on Micrel’s web site at: • Single 3.3V power supply • Up to 12.5Gbps operation • Programmable Decision Threshold • Low-noise CML data outputs • TTL /EN input • Programmable LOS level LOSLVL • Available in a tiny 3mm x 3mm package • WDM Systems • 10xGigabit Ethernet, 8xFibre Channel • SONET/SDH:OC192 STM64 • Low-gain TIA interface Markets • Datacom/telecom • Optical transceiver 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 • May 2010 M9999-052610-A or 408 955-1690 Micrel, Inc. Typical Application Circuit SY88053AL Fixed Decision Threshold Ordering Information SY88053ALMG SY88053ALMGTR 1 Note Tape and Reel. Package Type MLF-16 MLF16 Operating Range Industrial Industrial Programmable Decision Threshold Package Marking 053A with Pb-Free bar line indicator 053A with Pb-Free bar line indicator Lead Finish NiPdAu Pb-Free NiPdAu Pb-Free Pin Configuration May 2010 16-Pin 3mm x 3mm MLF-16 M9999-052610-A or 408 955-1690 Micrel, Inc. SY88053AL Pin Description Pin Number Pin Name DIN, /DIN VTHN 6 7 8 10, 11 13, 14 15 VTHREF LOS LOSLVL /DOUT, DOUT NC, NC /EN 16 1,4 9, 12 VTHP GND VCC Type Data Input DC Input DC Output Open-collector TTL output DC Input CML Output No Connection TTL Input DC Input Ground Power Supply Pin Function Differential data inputs. Each input is internally terminated to approximately VCC 1.3V by a resistor. AC-Couple input signals. Tie this pin to pin 6 VTHREF and apply a DC voltage on pin 16 VTHP for signal crossing adjustment. Connect to ground if no crossing adjustment is needed.

PDF Datasheet Preview

SY88053AL
3.3V, 12.5Gbps Limiting Post Amplifier with Programmable Decision Threshold

The SY88053AL, limiting post amplifier is designed for use in fiber-optic receivers for applications up to 12.5Gbps. It features a decision threshold control that can be used for offset compensation or to optimize the Bit Error Rate BER in noisy applications as WDM where optical amplifiers such as EDFAs and Raman amplifier are used. This device connects to typical transimpedance amplifiers TIAs . The signal from TIAs can contain significant amounts of noise unevenly distributed between its top and bottom rails due to the Amplified Spontaneous Emission ASE noise generated by the optical amplifiers. In order to optimize the BER in such noisy conditions, the decision threshold between bit 1 and bit 0 needs to be moved to the rail that contains less noise. An external voltage applied at the VTHP pin on the SY88053AL will move the crossing point up and down, from 20% to 80%, to achieve the best BER.

The SY88053AL operates from a single +3.3V power supply, over temperatures ranging from to +85oC, and can detect and amplify signals up to 12.5Gbps and amplitude as low as 15mVPP.

The SY88053AL generates a Loss-of-Signal LOS open-collector TTL output. A programmable Loss-ofSignal 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. The enable input /EN deasserts the true output signal without removing the input signal. The LOS output can be fed back to the /EN input to implement the squelch function that maintains output stability under a loss-of-signal condition.

All support documentation can be found on Micrel’s web site at:
• Single 3.3V power supply
• Up to 12.5Gbps operation
• Programmable Decision Threshold
• Low-noise CML data outputs
• TTL /EN input
• Programmable LOS level LOSLVL
• Available in a tiny 3mm x 3mm package
• WDM Systems
• 10xGigabit Ethernet, 8xFibre Channel
• SONET/SDH:OC192 STM64
• Low-gain TIA interface

Markets
• Datacom/telecom
• Optical transceiver

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
•

May 2010

M9999-052610-A or 408 955-1690

Micrel, Inc.

Typical Application Circuit

SY88053AL

Fixed Decision Threshold
Ordering Information

SY88053ALMG SY88053ALMGTR 1

Note Tape and Reel.

Package Type

MLF-16

MLF16

Operating Range

Industrial

Industrial

Programmable Decision Threshold

Package Marking
053A with Pb-Free bar line indicator 053A with Pb-Free bar line indicator

Lead Finish

NiPdAu Pb-Free NiPdAu Pb-Free

Pin Configuration

May 2010
16-Pin 3mm x 3mm MLF-16

M9999-052610-A
or 408 955-1690

Micrel, Inc.

SY88053AL

Pin Description

Pin Number

Pin Name

DIN, /DIN

VTHN
6 7 8 10, 11 13, 14 15

VTHREF LOS

LOSLVL /DOUT, DOUT

NC, NC /EN
16 1,4 9, 12

VTHP GND VCC

Type Data Input

DC Input

DC Output Open-collector

TTL output DC Input CML Output No Connection TTL Input

DC Input

Ground Power Supply

Pin Function

Differential data inputs. Each input is internally terminated to approximately VCC 1.3V by a resistor. AC-Couple input signals.

Tie this pin to pin 6 VTHREF and apply a DC voltage on pin 16 VTHP for signal crossing adjustment. Connect to ground if no crossing adjustment is needed.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived SY88053ALMG Datasheet file may be downloaded here without warranties.

Datasheet ID: SY88053ALMG 647949