SY88149NDLMG More Semiconductors - ICs by Microchip Technology

Status: Active
Series: SY88149ND
RoHS: Compliant
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The SY88149NDL is a high-sensitivity, burst-mode capable limiting post amplifier designed for Optical Line Terminal (OLT) receiver applications. The SY88149NDL satisfies the strict timing restrictions of the GPON standards by providing ultra-fast Loss-of-Signal (LOS) or Signal-Detect (SD) output. Auto Reset and Manual Reset options are provided to control LOS/SD output timing. For increased flexibility, this device also includes an option to select between LOS or SD output. The device can be connected to burst-mode capable transimpedance amplifiers (TIAs) using AC or DC coupling. The SY88149NDL generates a high-gain LOS or SD LVTTL output. A programmable LOS/SD level set pin (LOS/SDLVL) sets the sensitivity of the input amplitude detection. When LOS/SD SEL pin is left open or tied to Vcc, JAM is active high, SD is selected and asserts high if the input amplitude rises above the threshold sets by LOS/SDLVL and de-asserts low otherwise. When LOS/SD SEL pin is set low or tied to GND, JAM is active low, LOS is selected and asserts low if the input mplitude rises above the threshold sets by LOS/SDLVL and de-asserts high otherwise. The LOS/SD output can be fed back to the JAM input to maintain output stability under an invalid signal conditions. Typically, 4–5 dB SD hysteresis is provided to prevent chattering. The SY88149NDL also features a selectable proprietary Noise Discriminator that aids by filtering out input signals that do not qualify as a 1.25Gbps GPON preamble signal in the initial startup phase. This feature minimizes false SD Asserts that can be triggered by random noise. The SY88149NDL operates from a single +3.3V power supply, over temperatures ranging from –40°C to +85°C. With its wide bandwidth and high gain, signals up to 1.25Gbps and as small as 5mVpp can be amplified to drive devices with LVPECL inputs.

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Prices starting from US$4.37

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Features

<5ns SD Assert (LOS Deassert) time
Option to AUTO RESET or manual RESET LOS/SD output
Selectable LOS/SD output option
High-sensitivity LOS/SD signal detect
Low-noise LVPECL data outputs
Squelching function to maintain output stability
Programmable LOS/SD level set (LOS/SDLVL)
5mVPP input sensitivity
1.25Gbps operation
Single 3.3V power supply
Available in a 16-pin (3mm x 3mm) QFN package

Specifications

Part Type Fiber Optic Burst Mode Post Amplifiers
Data Rate Capability 1.25
Power Supply (V) 3.3
Data Input Type CML/PECL
Data Output Type PECL
LOS/SD SD & LOS (TTL)
LOS/SD Gain 1x
RC Time Constant 7ns
Hysteresis Typ (dB) 4
Pins | Packaging 16 | VQFN
Temp Range -40C to +85C
Packing Media Tube (100)

Environmental Information

JEDEC Indicator e4
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.0213
Shipping Weight (kg) 0.05
Lead Count 16
Package Type VQFN
Package Width or Size 3x3x1.00mm
Soldering Composition NiPdAu

Alternative Descriptions

1.25Gbps GPON Burst Mode Limiting Amplifier | Microchip Technology
Ic, Limiting Amp, 1.25Gbps, 16Qfn |Microchip SY88149NDLMG | Newark Electronics
SY88149 Series 3.6 V 1.25 Gbps SMT Burst Mode Limiting Amplifier - QFN-16 | Future Electronics
SP Amp Limiting Amp Single 3.6V 16-Pin QFN Tube | Avnet America
IC, LIMITING AMP, 1.25GBPS, 16QFN | element14


Frequently Asked Questions

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Additional datasheets, footprints and schematics for SY88149NDLMG are listed on our Part Details page. You can also find images and similar parts to SY88149NDLMG on this page.

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What category does SY88149NDLMG fall under?

The SY88149NDLMG is listed under Semiconductors - ICs > More Semiconductors - ICs.

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Is the SY88149NDLMG RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

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Authorised distributors including Microchip Technology, Newark Electronics, Future Electronics, Avnet America and element14 have stock available or on a lead time for SY88149NDLMG.

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