Overview
The DS125BR401A, produced by Texas Instruments, is an extremely low-power, high-performance repeater/redriver designed to support four lanes carrying high-speed interfaces up to 12 Gbps. This device is optimized for use in various high-speed applications, including PCIe and SAS, and is particularly effective in mitigating inter-symbol interference (ISI) induced by interconnect mediums such as backplane traces or twinaxial copper cables. The DS125BR401A features advanced signal conditioning capabilities, including continuous time linear equalizers (CTLE) and transmit de-emphasis, ensuring reliable and high-quality signal transmission.
Key Specifications
| Specification | Value |
|---|---|
| Package | 54-Terminal Leadless WQFN (NJY) |
| Pins | 54 |
| Operating Temperature Range (°C) | -40 to 85 |
| Supply Voltage | 2.5 V or 3.3 V |
| Number of Channels | 4 |
| Data Rate (Max) | 12 Gbps |
| Receive CTLE (B-Side) | Up to 24 dB at 6 GHz |
| Receive CTLE (A-Side) | Up to 10 dB at 6 GHz |
| Transmit De-Emphasis (Tx DE) | > 10 dB |
| Tx Output Voltage | 700 mV to 1400 mV |
| ESD Rating | 4 kV HBM |
| Package Size | 10mm x 5.5mm |
Key Features
- Low 65-mW/Channel (Typ) Power Consumption, with option to power down unused channels
- Linear Equalization allows for Link Training in PCIe and SAS
- Supports Out-of-Band (OOB) Signaling
- Advanced Signal Conditioning on both B-Side and A-Side I/O
- Programmable via Terminal Selection, EEPROM, or SMBus Interface
- Linear output drive with output voltage range over 1200mV
- Flow-Thru Layout for easy PCB design
Applications
The DS125BR401A is suitable for a variety of high-speed interface applications, including:
- PCIe Gen-3 and SAS-3 systems
- Backplane and twinaxial copper cable interconnects
- Data centers and high-performance computing systems
- Storage systems and networking equipment
Q & A
- Q: What is the maximum data rate supported by the DS125BR401A?
A: The DS125BR401A supports a maximum data rate of 12 Gbps. - Q: What is the operating temperature range of the DS125BR401A?
A: The operating temperature range is -40°C to 85°C. - Q: How many channels does the DS125BR401A support?
A: The DS125BR401A supports four channels. - Q: What are the supply voltage options for the DS125BR401A?
A: The supply voltage options are 2.5 V or 3.3 V. - Q: How can the DS125BR401A be programmed?
A: The DS125BR401A can be programmed via Terminal Selection, EEPROM, or SMBus Interface. - Q: What is the ESD rating of the DS125BR401A?
A: The ESD rating is 4 kV HBM. - Q: What type of package does the DS125BR401A come in?
A: The DS125BR401A comes in a 54-Terminal Leadless WQFN (NJY) package. - Q: Does the DS125BR401A support out-of-band signaling?
A: Yes, the DS125BR401A supports out-of-band (OOB) signaling. - Q: How does the DS125BR401A handle inter-symbol interference (ISI)?
A: The DS125BR401A uses continuous time linear equalizers (CTLE) to mitigate ISI induced by interconnect mediums. - Q: Is the DS125BR401A RoHS compliant?
A: Yes, the DS125BR401A is RoHS compliant.
