MAX14970
Ruggedized 6Gbps SATA Redriver with High
ESD and Extended Temperature Operation
General Description
Benefits and Features
The MAX14970 dual-channel buffer with input equaliza-
tion 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 moth-
erboard 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.
● Robust Solution for Harsh Environments
• Extended Temp Rating: -40°C to +85°C
• High ESD Protection on All Pins: ±8kV (HBM)
• TQFN (4mm x 4mm) Package for Resistance to
Vibration/Shocks
● Unique Power-Saving Design
• Standby State: <1mW (typ)
• Dynamic Power-Down State
Idle State: 52.8mW (typ)
Active State: 231mW (typ)
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.
● 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
Applications
● Industrial/Embedded PC
● Portable IPC/HMI
● Industrial Server
● Medical
The device preserves signal integrity at the receiver by
reestablishing full output levels and reducing the total sys-
tem jitter (T ) by providing equalization. The device fea-
J
tures 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 cor-
responding outputs. Inputs and outputs are all internally
50Ω terminated and must be AC-coupled to the SATA
controller IC and SATA device.
● SATA SSDs or HDDs
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part, refer
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 -40ºC to +85ºC operating temperature range.
to: www.maximintegrated.com/MAX14970.related
19-6479; Rev 0; 3/13