MAX14986

PRODUCTION

Dual 6GT/s SAS/SATA Redriver with Equalization and Extended Temperature Operation

Ruggedized and Robust Redriver with Double the Performance

Data Sheet (Rev. 0) Product Selection Table

Part Models: 1
1ku List Price: Starting From $5.20

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Overview

High-Performance Solution Designed to Overcome Lossy Channels
- 3dB of Independent (per Channel) Selectable Input EQ and Output Preemphasis
- Compensates Up to 30in of Channel Losses with Deterministic Jitter: 23ps_P-P (max); Random Jitter: 1.5ps_RMS (max)
- 8dB (typ) of Return Loss Up to 3.0GHz
Designed to Reliably Operate in Harsh Environments
- Industrial Temperature Rated: -40°C to +85°C
- ±2.5kV Human Body Model (HBM) ESD Protection on All Pins
- Housed in a Flow-Through (3.5mm x 5.5mm, 28-Pin) TQFN Package for Resistance to Vibration/Shocks
Ease of Design and Layout
- Single 3.3V Operation
- Internal Input/Output 50Ω Termination Resistors on All Pins
- Flow-Through Pinout

The MAX14986 dual-channel redriver is designed to redrive one full lane of SAS or SATA signals up to 6.0GT/s (gigatransfers per second) and operates from a single +3.3V supply.

The MAX14986 features independent input equalization and output preemphasis. It enhances signal integrity at the receiver by equalizing the signal at the input and establishing preemphasis at the output of the device. SAS and SATA OOB (out-of-band) signaling is supported using high-speed amplitude detection on the inputs and squelch on the corresponding outputs. Inputs and outputs are all internally 50Ω terminated and must be AC-coupled to the SAS/SATA controller IC and SAS/SATA device.

The MAX14986 is available in a small 28-pin, 3.5mm x 5.5mm TQFN package with flow-through traces for ease of layout. This device is specified over the -40°C to +85°C extended operating temperature range.

Applications

Carrier Boards
Computer on Modules
Industrial/Embedded PCs
Medical Equipment
Rack Server Industrial PCs
Test Equipment

Part Models: 1
1ku List Price: Starting From $5.20

Documentation

Data Sheet 1

MAX14986: Dual 6GT/s SAS/SATA Redriver with Equalization and Extended Temperature Operation Data Sheet (Rev.0) 07/01/2013

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX14986ETI+	28-LFCSP-3.5X5.5X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

SPICE Model 1

max14986.tar SPICE Macro Model

Evaluation Kits

Evaluation Kit for the MAX14986

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Features and Benefits

Application Circuit with SAS and SATA Input/Output
Eye Diagram Test Circuit with SMA Inputs/Outputs
Calibration Traces (50Ω Single-Ended Load Trace and 50Ω Single-Ended Through Trace)
Lead(Pb)-Free and RoHS Compliant
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX14986 evaluation kit (EV kit) provides a proven design to evaluate the MAX14986 dual-channel buffer. The EV kit contains four sections: an application circuit, characterization circuit, and two calibration traces.

The application circuit (Figure 1a in the full data sheet) is designed to demonstrate the IC’s use in redriving Serial-Attached SCSI (SAS) and Serial ATA (SATA) signals. This section of the EV kit operates from an external +5V supply that is regulated by an on-board LDO to +3.3V, which powers the MAX14986 (U1) device. All traces in the application circuit are 100Ω differential controlled-impedance traces.

The characterization circuit (Figure 1b in the full data sheet) is provided for eye diagram evaluation using SMA connectors and 50Ω single-ended controlled-impedance traces. This section is powered by an external +3.3V supply.