Overview
The DS125BR800ANJYT is a high-performance, low-power, multi-protocol repeater/redriver designed by Texas Instruments. This device supports eight channels of high-speed interface serial protocols, including PCIe Gen-3/2/1, SAS, and other proprietary interfaces up to 12.5 Gbps. It is particularly useful for extending the reach of high-speed signals over long interconnect channels such as backplane traces or copper cables, ensuring error-free end-to-end links.
Key Specifications
| Parameter | Value |
|---|---|
| Package | WQFN (NJY) - 54 pins |
| Operating Temperature Range | -40°C to 85°C |
| Data Rate | Up to 12.5 Gbps |
| Receive Equalization | Up to 30 dB at 6.25 GHz |
| Transmit De-Emphasis | Up to -12 dB |
| Transmit Output Voltage Control | 700 mV to 1300 mV |
| Power Consumption per Channel | 65 mW (typical) |
| Supply Voltage | 2.5 V or 3.3 V |
| ESD Rating | 3 kV HBM |
| Package Dimensions | 10 mm x 5.5 mm, 0.5 mm pitch |
Key Features
- Proven system interoperability with comprehensive multi-protocol repeater family
- Low power consumption of 65 mW per channel with the option to power down unused channels
- Transparent management of link training protocol for PCIe, SAS, and 10G-KR
- Advanced signal conditioning features including Rx CTLE up to 30 dB and Tx de-emphasis up to -12 dB
- Transmit output voltage control: 700 mV to 1300 mV
- Programmable via pin selection, EEPROM, or SMBus interface
- Single supply voltage operation: 2.5 V or 3.3 V
- Operating temperature range: -40°C to 85°C
- 3 kV HBM ESD rating
- Flow-thru pinout in a 54-pin WQFN package
Applications
- FR-4 backplane traces
- High-speed cable applications
- PCIe Gen-3/2/1 systems
- SAS/SATA systems
- 10G-KR and other high-speed interface systems
- Proprietary interfaces up to 12.5 Gbps
Q & A
- What is the maximum data rate supported by the DS125BR800ANJYT?
The DS125BR800ANJYT supports data rates up to 12.5 Gbps.
- What types of protocols does the DS125BR800ANJYT support?
The device supports PCIe Gen-3/2/1, SAS, 10G-KR, and other proprietary interfaces.
- How does the DS125BR800ANJYT manage link training protocols?
The device transparently allows the host controller and the endpoint to optimize the full link and negotiate transmit equalizer coefficients, ensuring system-level interoperability with minimum latency.
- What is the power consumption per channel of the DS125BR800ANJYT?
The typical power consumption per channel is 65 mW, with the option to power down unused channels.
- How can the settings of the DS125BR800ANJYT be programmed?
The settings can be programmed via pin selection, EEPROM, or SMBus interface.
- What is the operating temperature range of the DS125BR800ANJYT?
The operating temperature range is -40°C to 85°C.
- What is the ESD rating of the DS125BR800ANJYT?
The device has a 3 kV HBM ESD rating.
- What package type and dimensions does the DS125BR800ANJYT come in?
The device comes in a 54-pin WQFN package with dimensions of 10 mm x 5.5 mm and a 0.5 mm pitch.
- How does the DS125BR800ANJYT handle signal equalization?
The device features a continuous time linear equalizer (CTLE) that provides a boost of up to 30 dB at 6.25 GHz and transmit de-emphasis up to -12 dB.
- What is the significance of the flow-thru pinout in the DS125BR800ANJYT?
The flow-thru pinout facilitates high-speed signal flow, making it easier to integrate into high-speed systems.
