SNLS459 – APRIL 2011
DS125RT410 Low Power Multi-Rate Quad Channel Retimer
Check for Samples:
1
FEATURES
APPLICATIONS
2
•
Each channel independently locks to data
•
Front port SFF 8431 (SFP+) optical and direct •
rates from 9.8 to 12.5 Gbps and submultiples
Input signal detection, CDR lock attach copper
•
Fast lock operation based on protocol-select
•
Backplane reach extension, data retimer
mode
•
Ethernet: 10GbE, 1GbE
•
Low latency (~300ps)
•
CPRI: Line bit rate options 3–7
•
Adaptive equalization up to 34 dB boost at 5
•
Interlaken: All lane bit rates
GHz
For other data rates and data transmission
•
Adjustable transmit V
OD
: 600 to 1300 mVp-p
protocols, other pin-compatible devices in the
•
Adjustable transmit de-emphasis to -15 dB
retimer family can be used.
•
Typical Power Dissipation (EQ+CDR+DE): 150
DESCRIPTION
mW / channel
The DS125RT410 is four channel retimers with
•
Programmable output polarity inversion
integrated signal conditioning. The devices include a
•
Input signal detection, CDR lock
fully
adaptive
Continuous-Time
Linear
Equalizer
detection/indicator
(CTLE), Clock and Data Recovery (CDR) and
transmit De-Emphasis (DE) driver to enable data
•
On-chip Eye Monitor (EOM), PRBS generator
transmission over long, lossy and crosstalk-impaired
•
Single 2.5 V ±5% power supply
highspeed serial links to achieve BER < 1×10
-15
.
•
SMBus/EEPROM configuration modes
Each channel can independently lock to data rate
•
Operating temperature range of -40 to 85°C
from 9.8 to 12.5 Gbps, and associated sub rates (div
•
RHS 48-pin 7 mm x 7 mm package
by 2, 4 and 8) to support a variety communication
protocols. A 25 MHz reference clock is required,
•
Easy pin compatible upgrade between
which need not be synchronous with the serial data.
repeater and retimers
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DS100RT410 (EQ+CDR+DE): 10.3125 Gbps
The programmable settings can be applied using the
SMBus (I2C) interface, or they can be loaded via an
–
DS100DF410 (EQ+DFE+CDR+DE): 10.3125
external EEPROM. An on-chip eye monitor and a
Gbps
PRBS generator allow real-time measurement of
–
DS110RT410 (EQ+CDR+DE): 8.5 - 11.3 Gbps
high-speed serial data for system bring-up or field
–
DS110DF410 (EQ+DFE+CDR+DE): 8.5 - 11.3
tuning. Flow-through pinout and single power supply
Gbps
make the DS125RT410 easy to use.
–
DS125RT410 (EQ+CDR+DE): 9.8 - 12.5 Gbps
The device is offered in a RHS 48-pin, 7 mm x 7 mm
package with flow-through pinout for the high speed
–
DS125DF410 (EQ+DFE+CDR+DE): 9.8 - 12.5
signals.
Gbps
–
DS100BR410 (EQ+DE): Up to 10.3125 Gbps
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
