Overview
The DS280DF810ABVR, produced by Texas Instruments, is an octal-channel multi-rate Retimer with integrated signal conditioning. This device is designed to extend the reach and robustness of long, lossy, crosstalk-impaired high-speed serial links, achieving a bit error rate (BER) of 10^-15 or less. It supports a wide range of data rates from 20.2 Gbps to 28.4 Gbps, including key sub-rates such as 10.1376 Gbps, 10.3125 Gbps, and 12.5 Gbps. The DS280DF810ABVR features ultra-low latency, a single power supply, and integrated AC coupling capacitors, which simplify board design and reduce component costs.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Data Rate | 20.2 Gbps | - | 28.4 Gbps | Gbps |
| Latency | - | <500 ps | - | ps |
| Supply Voltage (VDD) | -0.5 V | 2.5 V | 2.75 V | V |
| Operating Temperature | -40 °C | - | 85 °C | °C |
| Package Size | - | 8 mm × 13 mm | - | mm |
| Power Consumption (Total Idle) | 658 mW | - | 1050 mW | mW |
| Active Mode Supply Current | 1036 mA | - | 1330 mA | mA |
Key Features
- Octal-channel multi-rate Retimer with integrated signal conditioning
- All channels lock independently from 20.2 Gbps to 28.4 Gbps, including sub-rates
- Ultra-low latency: <500 ps typical for 28.4 Gbps data rate
- Single power supply, no low-jitter reference clock required
- Integrated AC coupling capacitors to reduce board routing complexity and BOM cost
- Adaptive continuous-time linear equalizer (CTLE) and adaptive decision feedback equalizer (DFE)
- Low-jitter transmitter with 3-tap FIR filter
- Combined equalization supporting 35+ dB channel loss at 12.9 GHz; 30+ dB channel loss at 14 GHz
- Adjustable transmit amplitude: 205 mVppd to 1225 mVppd (typical)
- On-chip eye opening monitor (EOM), PRBS pattern checker/generator
- Integrated 2×2 cross point for lane crossing and fanout options
- Configuration via SMBus or external EEPROM
- Extended temperature range: -40 °C to 85 °C
Applications
- Backplane/mid-plane reach extension
- Jitter cleaning for front-port optical modules
- IEEE802.3bj 100GbE, Infiniband EDR, and OIF-CEI-25G-LR/MR/SR/VSR electrical interfaces
- SFP28, QSFP28, CFP2/CFP4, CDFP
Q & A
- What is the data rate range supported by the DS280DF810ABVR?
The DS280DF810ABVR supports data rates from 20.2 Gbps to 28.4 Gbps, including key sub-rates such as 10.1376 Gbps, 10.3125 Gbps, and 12.5 Gbps.
- What is the typical latency of the DS280DF810ABVR at 28.4 Gbps?
The typical latency is less than 500 ps at 28.4 Gbps.
- Does the DS280DF810ABVR require an external low-jitter reference clock?
No, the DS280DF810ABVR does not require an external low-jitter reference clock.
- How does the DS280DF810ABVR simplify board design?
The device integrates AC coupling capacitors, reducing the need for external components and simplifying board routing complexity and BOM cost.
- What equalization features does the DS280DF810ABVR offer?
The DS280DF810ABVR features an adaptive continuous-time linear equalizer (CTLE), an adaptive decision feedback equalizer (DFE), and a low-jitter 3-tap transmit finite impulse response (FIR) filter.
- What is the package size of the DS280DF810ABVR?
The package size is 8 mm × 13 mm.
- What are the primary applications of the DS280DF810ABVR?
The primary applications include backplane/mid-plane reach extension, jitter cleaning for front-port optical modules, and support for various high-speed electrical interfaces such as IEEE802.3bj 100GbE and Infiniband EDR.
- How can the DS280DF810ABVR be configured?
The device can be configured via the SMBus or through an external EEPROM. Up to 16 devices can share a single EEPROM.
- What diagnostic tools are integrated into the DS280DF810ABVR?
The device includes a non-disruptive on-chip eye opening monitor (EOM) and a PRBS pattern checker/generator for in-system diagnostics.
- What is the operating temperature range of the DS280DF810ABVR?
The operating temperature range is from -40 °C to 85 °C.
- What is the total idle power consumption of the DS280DF810ABVR?
The total idle power consumption ranges from 658 mW to 1050 mW.
