MAX4952B

PRODUCTION

Dual 1.5/3.0/6.0Gbps SAS/SATA Redriver

Low-Cost MAX4952B Routes and Redrives the Signal Through Connectors

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $4.01

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Overview

Single +3.3V Supply Operation
Low Power-Down Current (350µA typ) for Power-Sensitive Applications
Supports SAS I/II/III ≤ 6.0Gbps
Excellent Return Loss
- Exceeds SAS/SATA Return Loss Mask (Better Than 8dB Up to 3GHz)
Supports SAS/SATA OOB-Level Signaling Very Fast Entry and Exit Time of 5ns (Max) Programmable SAS/SATA Threshold
Independent Output-Boost Selection Two Levels: 0dB, 6dB
On-Chip 50Ω Input/Output Terminations
In-Line Signal Traces for Flow-Through Layout
Space-Saving, 4.0mm × 4.0mm TQFN Package
ESD Protection on All Pins: ±5.5kV (Human Body Model)

The MAX4952B dual-channel redriver is designed to redrive one full lane of SAS or SATA signals up to 6.0Gbps and operates from a single +3.3V supply. The MAX4952B is designed for commercial SAS or SAS/SATA applications, such as servers.

The MAX4952B features independent output boost and enhances signal integrity at the receiver by re-establishing full output levels. SAS/SATA out-of-band (OOB) signaling is supported using high-speed amplitude detection on the inputs and squelch on the corresponding outputs.

Inputs and outputs are all terminated in 50Ω internally and exhibit excellent return loss.

The MAX4952B is available in a small, 20-pin, 4.0mm × 4.0mm TQFN package with flow-through traces for ease of layout. This device is specified over the 0°C to +70°C operating temperature range.

Applications

Data Storage
Servers

Part Models: 2
1ku List Price: Starting From $4.01

Documentation

Data Sheet 1

MAX4952B: Dual 1.5/3.0/6.0Gbps SAS/SATA Redriver Data Sheet (Rev.0) 02/09/2010

Reliability Data 1

MAX4952B Reliability Data 01/12/2023

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
MAX4952BCTP+	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX4952BCTP+T	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

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

Evaluation Kits

Evaluation Kit for the MAX4952B

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Features and Benefits

Application Circuit with SATA Input/Output
Characterization Circuit with SMA Inputs/Outputs
Calibration Traces (50Ω Load Trace and Through Trace)
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX4952B evaluation kit (EV kit) provides a proven design to evaluate the MAX4952B dual-channel redriver. The EV kit contains four sections: application circuit, characterization circuit, and two sets of calibration traces.

The application circuit is designed to demonstrate the MAX4952B IC's use in redriving SATA and SAS 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 MAX4952B (U1) device. All traces in the application circuit are 100Ω differential controlled-impedance traces.

The characterization circuit is provided for eye diagram evaluation using SMA connectors and 50Ω controlled-impedance traces. This section is powered by an external +3.3V power supply.