DS125BR820
- Low 70 mW/Channel (Typ) Power Consumption,
with Option to Power Down Unused Channels - Seamless Link Training Support
- Enables Host ASIC to Meet Front-Port Eye Mask
Requirements over Longer Reach - Advanced Configurable Signal Conditioning I/O
- Receive CTLE up to 10 dB at 6 GHz
- Linear Output Driver
- Variable Output Voltage Range up to 1200
mVp-p
- Programmable via Pin Selection, EEPROM, or
SMBus Interface - Single Supply Voltage: 2.5 V or 3.3 V
- −40°C to 85°C Operating Temperature Range
- Flow-Thru Layout in 10 mm × 5.5 mm 54-Pin
Leadless WQFN Package
The DS125BR820 is an extremely low-power high-performance repeater/redriver designed to support eight channels carrying high speed interface up to 12.5 Gbps, such as 40G-CR4, 40G-KR4, SAS/SATA, and PCIe. The receivers continuous time linear equalizer (CTLE) provides high frequency boost that is programmable from 3 to 10 dB at 6 GHz (12 Gbps) followed by a linear output driver. The CTLE receiver is capable of opening an input eye that is completely closed due to inter symbol interference (ISI) induced by interconnect medium such as board traces or twin axial-copper cables. The programmable equalization maximizes the flexibility of physical placement within the interconnect channel and improves overall channel performance.
When operating in 40G-CR4/KR4, SAS/SATA, and PCIe applications, the DS125BR820 preserves transmit signal characteristics, thereby allowing the host controller and the end point to negotiate transmit equalizer coefficients. This transparency in the link training protocol facilitates system level interoperability and minimizes latency.
The programmable settings can be applied easily via pin control, software (SMBus or I2C), or direct loading from an external EEPROM. In EEPROM mode, the configuration information is automatically loaded on power up, thereby eliminating the need for an external microprocessor or software driver.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
DS125BR820EVM — DS125BR820EVM: 12.5 Gbps 8-Channel Repeater with Equalization Evaluation Module
The DS125BR820EVM – SMA evaluation kit provides a complete high bandwidth platform to evaluate the 40GbE, PCIe, and SAS/SATA signal conditioning features of the Texas Instruments DS125BR820 repeater/redriver. The DS125BR820EVM can be used for standard compliance testing, performance evaluation, and (...)
SIGCONARCHITECT-WRTE — SigCon Architect With RTE v2.0.0.8
Supported products & hardware
Products
PCIe, SAS & SATA ICs
Ethernet retimers, redrivers & mux-buffers
Serial digital interface (SDI) ICs
Hardware development
GUI for evaluation module (EVM)
Evaluation board
Interface adapter
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
TIDA-00417 — 2-port 40GbE/10GbE QSFP+ Signal Conditioner Reference Design
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
WQFN (NJY) | 54 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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