Overview
The DS125DF1610FBE/NOPB is a 16-channel multi-rate retimer produced by Texas Instruments. This device is designed to enhance the reach and robustness of high-speed serial links by integrating advanced signal conditioning features. It includes a fully adaptive Continuous Time Linear Equalizer (CTLE), Decision Feedback Equalizer (DFE), clock and data recovery (CDR), and a transmit FIR filter. Each channel can independently lock to serial data rates ranging from 9.8 to 12.5 Gbps and their sub-multiples (divide by 2, 4, and 8). The device supports various applications requiring high-speed data transmission over long, lossy, and crosstalk-impaired links, achieving a bit error rate (BER) of less than 1×10^-15.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Data Rate (Full Rate) | 9.8 | - | 12.5 | Gbps |
| Input Data Rate (Half Rate) | 4.9 | - | 6.25 | Gbps |
| Input Data Rate (Quarter Rate) | 2.45 | - | 3.125 | Gbps |
| Input Data Rate (Eighth Rate) | 1.225 | - | 1.5625 | Gbps |
| Supply Voltage (VDD) | -0.5 | - | 2.75 | V |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | - | FCBGA (196 pins) | - |
| Package Size | - | - | 15 mm x 15 mm | - |
| Power Consumption per Active Channel (CTLE only) | 175 | - | - | mW |
| Power Consumption per Active Channel (CTLE and DFE) | 200 | - | 323 | mW |
Key Features
- PIN-compatible family with DS150DF1610 and DS110DF1610 for different data rate ranges.
- 4x4 analog cross-point switch for each quad, allowing full non-blocking routing or broadcasting.
- Fully adaptive Continuous Time Linear Equalizer (CTLE) and Decision Feedback Equalizer (DFE) for signal conditioning.
- Self-tuning DFE with optional continuous adaptation.
- Configurable VGA and adjustable transmit VOD.
- Adjustable 3-tap transmit FIR filter for transmit equalization.
- On-chip AC coupling on receive inputs.
- Locks to half, quarter, and eighth data rates for legacy support.
- On-chip eye monitor (EOM), PRBS checker, and pattern generator for diagnostic purposes.
- Supports JTAG boundary scan for manufacturing tests.
- Programmable output polarity inversion and input signal detection.
- SMBus-based register configuration with optional EEPROM configuration.
Applications
- SFF-8431 compliant applications.
- CPRI (Common Public Radio Interface) systems.
- 10G/40G Ethernet systems.
- Backplane applications requiring high-speed data transmission.
Q & A
- What is the data rate range supported by the DS125DF1610?
The DS125DF1610 supports data rates ranging from 9.8 to 12.5 Gbps and their sub-multiples (divide by 2, 4, and 8).
- What type of equalization does the DS125DF1610 provide?
The device includes a fully adaptive Continuous Time Linear Equalizer (CTLE) and Decision Feedback Equalizer (DFE).
- What is the package type and size of the DS125DF1610?
The DS125DF1610 comes in a 196-pin FCBGA package with a size of 15 mm x 15 mm.
- What is the operating temperature range of the DS125DF1610?
The operating temperature range is from -40°C to +85°C.
- Does the DS125DF1610 support JTAG boundary scan?
Yes, the device supports JTAG boundary scan for manufacturing tests.
- What are the power consumption characteristics of the DS125DF1610?
The power consumption per active channel varies depending on the configuration, with CTLE only consuming around 175 mW and CTLE with DFE consuming between 200 to 323 mW.
- What diagnostic features are built into the DS125DF1610?
The device includes an on-chip eye monitor (EOM), PRBS checker, and pattern generator.
- Can the DS125DF1610 be configured via SMBus or EEPROM?
Yes, the device supports SMBus-based register configuration with optional EEPROM configuration.
- What are some common applications of the DS125DF1610?
Common applications include SFF-8431 compliant systems, CPRI systems, 10G/40G Ethernet systems, and backplane applications.
- Does the DS125DF1610 support adjustable transmit equalization?
Yes, the device features an adjustable 3-tap transmit FIR filter for transmit equalization.
