25-Gbps enhanced multi-rate 2-channel retimer
Product details
Parameters
Package | Pins | Size
Features
- Dual-channel multi-rate retimer with integrated signal conditioning
- All channels lock independently from 19.6 to 25.8 Gbps (including sub-rates, such as 12.16512 Gbps, 9.8304 Gbps, 6.144 Gbps, and more)
- Ultra-low latency: <500 ps Typical for 25.78125-Gbps data rate
- Adaptive continuous time linear equalizer (CTLE)
- Continuous adaptive decision feedback equalizer (DFE), capable of compensating large channel loss variation over temperature
- Combined equalization supporting 35-dB channel loss at 12.9 GHz
- On-chip eye-opening monitor (EOM), PRBS pattern checker and generator
- Low-jitter transmitter with 3-Tap FIR filter
- Integrated 2×2 cross-point
- Recovered clock available for system clock synchronization applications on channel 0
- Single power supply, no low-jitter reference clock required
- Wide stay-in-lock temperature range
All trademarks are the property of their respective owners.
Description
The DS250DF230 is a dual-channel multi-rate retimer with integrated signal conditioning. The device is used to extend the reach and robustness of long, lossy, crosstalk-impaired high-speed serial links and while achieving a bit error rate (BER) of 10–15 or less.
Each channel of the DS250DF230 independently locks to serial data rates in a continuous range from 19.6 Gbps to 25.8 Gbps or to any supported sub-rate (÷2 and ÷4), including key data rates such as 12.16512 Gbps, 9.8304 Gbps, 6.144 Gbps.
The DS250DF230 has a single power supply and minimal need for external components. These features reduce PCB routing complexity and BOM cost.
The advanced equalization features of the DS250DF230 include a low-jitter 3-tap transmit finite impulse response (FIR) filter, an adaptive continuous-time linear equalizer (CTLE), and an adaptive decision feedback equalizer (DFE). This enables reach extension for lossy interconnect and backplanes with multiple connectors and crosstalk. The integrated CDR function is available for front-port optical module applications to reset the jitter budget and retime the high-speed serial data. The DS250DF230 supplies 2x2 cross-point that gives the host lane crossing, fanout, and multiplexing options.
The DS250DF230 can be configured either through the SMBus or through an external EEPROM. Up to 16 devices can share an EEPROM using common-channel configuration. A non-disruptive on-chip eye monitor and a PRBS generator and checker is available for in-system diagnostics.
More information
Full IBIS AMI models and other information are available. Request now
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | DS250DF230 25-Gbps Multi-Rate 2-Channel Retimer datasheet (Rev. B) | Oct. 02, 2019 |
Application note | Optimal Implementation of 25G-28G Ethernet Retimers versus Redrivers (Rev. A) | Jan. 07, 2020 | |
User guide | DS250DF230EVM User Guide (Rev. A) | Sep. 03, 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The DS250DF230EVM allows for easy evaluation of the 25 Gbps retimer DS250DF230. Users are required to supply power and high speed traffic to the EVM via Huber+Suhner 1x8 MXP connectors. Huber+Suhner cables are not included.
Through the onboard USB2ANY connection and EVM software, users can evaluate (...)
Features
- Programmable via on board USB2ANY and EVM software
- Supports data rates up to 25.8 Gbps
- EVM supports single supply (2.5 V or 3.3 V)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
NFBGA (ZLS) | 36 | View options |
WQFN (RTV) | 32 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.