MAX4951C
PRODUCTION6Gbps SATA Bidirectional Redriver with Input Equalization, Preemphasis, and Advanced Power Management
Maintains Output Common-Mode Levels to Meet the Internal SATA 3.0 Standard
- Part Models
- 2
- 1ku List Price
- Starting From $3.82
Overview
- Unique Design Saves Power
- Low-Power, 20µA (typ) SATA Cable/Drive Detect
- Dynamic Power Reduction
- Reduced Power Consumption When Idle
- Maintains Common-Mode Output Level
- No Loss of Data When Coming Out of Low-Power Mode
- Allows Design Flexibility
- Single +3.3V Supply Operation
- SATA 3i (6.0Gbps) and SATA 2i/2m (3.0Gbps) Compliant
- SATA 1i/1m (1.5Gbps) Compatible
- Permits Longer Trace Lengths
- Input Equalization
- Selectable Output Preemphasis
- High Level of Integration for Performance
- Excellent Input/Output Return Loss Up to 6Gbps
- Supports SATA 2i and 3i Output Levels
- Supports SATA OOB Signaling
- OOB Detection: 3ns (typ)
- High ESD Protection on All Pins: ±8kV (HBM)
- Saves Board Space
- On-Chip 50Ω Input/Output Termination Resistors
- Inline Signal Traces for Flow-Through Layout
- Space-Saving, 4mm × 4mm TQFN Package with Exposed Pad
- Pin Compatible with the MAX4951BE
The MAX4951C 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 (TJ) 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 MAX4951C 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 commercial 0°C to +70°C operating temperature range. The MAX4951C is also pin compatible with the MAX4951BE SATA 6.0Gbps redriver.
Applications
- Data Storage/Workstations
- Desktop Computers
- Docking Stations
- Laptop Computers
- Servers
Documentation
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 |
|---|---|---|---|
| MAX4951CCTP+ | LFCSP | ||
| MAX4951CCTP+T | LFCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 14, 2023 - 2275A WAFER FAB |
||
| MAX4951CCTP+ | ||
| MAX4951CCTP+T | ||
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Evaluation Kit for the MAX4951C