MAX14970

PRODUCTION

Ruggedized 6Gbps SATA Redriver with High ESD and Extended Temperature Operation

Drive SATA Gen III Signals in a Low-Power Robust Design

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $4.91

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Overview

Robust Solution for Harsh Environments
- Extended Temp Rating: -40°C to +85°C
- High ESD Protection on All Pins: ±8kV (HBM)
- Package for Resistance to Vibration/Shocks
Unique Power Saving Design
- Standby State: < 1mW (typ)
- Dynamic Power-Down State: Reduced
- Idle State: 52.8mW (typ)
- Active State: 231mW (typ)
Design Flexibility
- Input Equalization and Selectable Output Preemphasis
- Single 3.3V Supply Operation
- SATA 3i (6.0Gbps), SATA 2i/2m (3.0Gbps), and SATA 1i/1m(1.5Gbps) Compatible

The MAX14970 dual-channel buffer with input equalization and preemphasis is ideal to redrive internal serial-ATA (SATA) 1i, 2i, and 3i signals as well as eSATA 1m and 2m signals. The device features high electrostatic discharge (ESD) ±8kV Human Body Model (HBM) protection. The device can be placed near a SATA connector on the motherboard to overcome board losses and guarantee SATA compliance. The device is SATA specification version 3.0 (gold standard) compliant and can also be pin-configured for SATA specification version 2.6 (gold standard) compliance.

The device features hardware SATA-drive cable detection that automatically places the device into a standby mode that consumes less than 20μA (typ) standby current when no drive is connected. In addition, the device features an independent channel dynamic power-down mode where power consumption is reduced when no input signal is present. The device maintains output common-mode levels to meet internal SATA version 3.0 standards and prevent delays when coming out of low-power mode. The device preserves signal integrity at the receiver by reestablishing full output levels and reducing the total system jitter (T_J) by providing equalization. The device features channel-independent digital preemphasis controls to drive SATA outputs over longer trace lengths to meet internal SATA specifications. SATA out-of-band (OOB) signaling is supported using high-speed out-of-band signal 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 SATA controller IC and SATA device.

The device operates from a single +3.3V (typ) supply, is available in a small, 4mm x 4mm TQFN package with flow-through traces for ease of layout, and is specified over the extended -40°C to +85°C operating temperature range.

Applications

Industrial Server
Industrial/Embedded PC
Medical
Portable IPC/HMI
SATA SSDs or HDDs

Part Models: 2
1ku List Price: Starting From $4.91

Documentation

Data Sheet 1

MAX14970: Ruggedized 6Gbps SATA Redriver with High ESD and Extended Temperature Operation Data Sheet (Rev.0) 04/01/2013

Reliability Data 1

MAX14970 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
MAX14970ETP+	20-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX14970ETP+T	20-LFCSP-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Aug 14, 2023 - 2275A WAFER FAB
		pcn_2275a
MAX14970ETP+	PRODUCTION
MAX14970ETP+T	PRODUCTION

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

Tools & Simulations

SPICE Model 1

max14970.tar SPICE Macro Model

Evaluation Kits

Evaluation Kit for the MAX14970

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Features and Benefits

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

Product Details

The MAX14970 evaluation kit (EV kit) provides a proven design to evaluate the MAX14970 dual-channel buffer. The EV kit contains four sections: an application circuit, characterization circuit, and two sets of calibration traces.

The application circuit is designed to demonstrate the device’s use in redriving serial-ATA (SATA) signals and SATA cable detection. This section of the EV kit operates from an external +5V supply that is regulated by an onboard LDO to +3.3V, which powers the 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.

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