ISL37231 Datasheet, PDF (1/9 Pages) Intersil Corporation – 10.3125 Gb/s Retiming Dual-Channel Transceiver

10.3125 Gb/s Retiming Dual-Channel Transceiver
ISL37231
The ISL37231 is an advanced dual-channel, dual-simplex
retimer for active copper cable applications. Endowed with
sophisticated functions, such as media optimized (PCB or
Cable) and adaptive equalization, de-emphasis, and signal
retiming, this IC fortifies sensitive links that break with lesser
retiming solutions. The device contains high performance
mixed signal processing technology to provide a maximally
robust signal integrity solution for datacenter and consumer
applications. Such processing includes up to 25dB of
media-optimized equalization and versatile retiming
capabilities to reset link jitter budgets.
The ISL37231 provides this high level of performance while
significantly reducing power consumption relative to other
active cable solutions. At well below 500mW, the operating
power is the lowest in class, and a sleep mode function can be
invoked to reduce the power to a miniscule 3mW.
To facilitate ease of system integration, the ISL37231 provides
advanced diagnostic capabilities in the form of loopback and
high-resolution on-chip eye monitor functions, both accessed
via a UART interface.
The ISL37231 is optimized to work in conjunction with the
ISL80083 power management IC, however, it will also operate
with appropriate discrete components (voltage regulators and
a 33Mhz crystal oscillator).
Features
• Industry’s lowest power and highest performance
10.3125Gbps active cable solution for STP and twin-axial
cables
• Supports 64b/66b encoding
• Fully retimed low jitter outputs
• Up to 16.5dB of adjustable (or adaptive) receiver-side
equalization
• 9dB output de-emphasis
• Supports independent SSC on each channel
• On-chip microcontroller and eye monitor
• Multiple loopback modes
• Low power (<420mW) operation with 3mW sleep mode
• Ultra-small 5mmx5mm aQFN package
Applications
• Thunderbolt™ active cables
• Proprietary high-speed active cable assemblies
Benefits
• Thinner gauge cable
• Extends cable reach
• Improved BER
TX1
RX1
TX2
RX2
GND
CABLE CONNECTOR
ISL37231
AI1 EQ CDR DE
AO1
BO1 DE CDR EQ BI1
AI2 EQ CDR DE AO2
BO2 DE CDR EQ BI2
µC
ACTIVE CABLE
CABLE MEDIA
CABLE CONNECTOR
ISL37231
BI1 EQ CDR DE BO1
AO1 DE CDR EQ AI1
BI2 EQ CDR DE BO2
AO2 DE CDR EQ AI2
µC
RX1
TX1
RX2
TX2
GND
PWR
ISL80083
EEPROM
EEPROM
ISL80083
PWR
FIGURE 1. TYPICAL APPLICATION
January 25, 2013
1
FN8266.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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