Overview
The DS125BR800ANJYR is a high-performance, low-power multi-protocol repeater/redriver designed by Texas Instruments. This device is optimized to support eight channels of high-speed interface serial protocols, including PCIe, SAS, and other proprietary interfaces up to 12.5 Gbps. It is particularly useful in applications requiring reliable transmission of high-speed signals over long distances while maintaining signal integrity. The DS125BR800ANJYR features advanced signal conditioning capabilities, including continuous time linear equalization (CTLE) and transmit de-emphasis, which help compensate for signal degradation due to interconnect medium losses.
Key Specifications
| Parameter | Value |
|---|---|
| Package | WQFN (NJY) - 54 pins |
| Operating Temperature Range | -40°C to 85°C |
| Data Rate (Max) | 12.5 Gbps |
| Number of Channels | 8 |
| Input/Output Type | CML (Current Mode Logic) |
| Signal Conditioning | Input Equalization, Output De-Emphasis |
| Supply Voltage | 2.5 V or 3.3 V |
| Power Consumption (Typical per Channel) | 65 mW |
| ESD Rating | 3 kV HBM |
Key Features
- Proven system interoperability with comprehensive multi-protocol repeater family
- Low power consumption of 65 mW/channel (typical) with the option to power down unused channels
- Advanced signal conditioning features including Rx CTLE up to 30 dB and Tx De-Emphasis up to 12 dB
- Transparent management of link training protocol for PCIe and SAS
- Device configuration interface via pins, EEPROM, or SMBus
- Single supply voltage of 2.5 V or 3.3 V
- Flow-thru pinout in a 54-pin WQFN package
- Support for SAS/SATA, PCIe, and other proprietary interfaces up to 12.5 Gbps
Applications
- Data center interconnects
- Video distribution systems
- High-speed digital communication links
- Telecommunication infrastructure
- Broadcasting applications
- Test and measurement equipment
Q & A
- What is the maximum data rate supported by the DS125BR800ANJYR?
The device supports data rates of up to 12.5 Gbps per channel.
- What is the operating temperature range for the DS125BR800ANJYR?
The operating temperature range is from -40°C to 85°C.
- Does the DS125BR800ANJYR require external components for operation?
Minimal external components are necessary; basic bypass capacitors are recommended for power supply pins.
- Can the DS125BR800ANJYR work with both single-ended and differential signals?
No, it specifically supports CML (Current Mode Logic) inputs and outputs.
- What power supply voltage does the DS125BR800ANJYR require?
The device operates with a supply voltage of 2.5 V or 3.3 V.
- How does the DS125BR800ANJYR manage link training protocols?
The device transparently allows the host controller and the endpoint to optimize the full link and negotiate transmit equalizer coefficients for PCIe and SAS.
- What is the typical power consumption per channel of the DS125BR800ANJYR?
The typical power consumption is 65 mW per channel.
- Can unused channels be powered down in the DS125BR800ANJYR?
- What is the ESD rating of the DS125BR800ANJYR?
The ESD rating is 3 kV HBM.
- How can the configuration settings be applied to the DS125BR800ANJYR?
The configuration settings can be applied via pins, software (SMBus or I2C), or loaded via an external EEPROM.
