Overview
The DS125DF1610FB/NOPB is a 16-channel multi-rate retimer designed by Texas Instruments. This device is part of a pin-compatible family that includes the DS110DF1610 (8.5 to 11.3 Gbps) and the DS150DF1610 (12.5 to 15 Gbps). The DS125DF1610 operates at data rates ranging from 9.8 to 12.5 Gbps and supports sub-multiples of these rates (half, quarter, and eighth rates). It is equipped with integrated signal conditioning features, including a fully adaptive Continuous Time Linear Equalizer (CTLE), Decision Feedback Equalizer (DFE), clock and data recovery (CDR), and a transmit FIR filter. These features enhance the reach and robustness of high-speed serial 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 |
| Power Consumption per Active Channel (CTLE only) | - | 175 | - | mW |
| Power Consumption per Active Channel (CTLE and DFE) | 200 | 323 | - | mW |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | - | - | 196-pin FCBGA |
| Package Size | - | - | - | 15 mm x 15 mm |
Key Features
- Fully adaptive Continuous Time Linear Equalizer (CTLE) and Decision Feedback Equalizer (DFE)
- Clock and data recovery (CDR) and transmit FIR filter
- 4x4 analog cross point switches for each quad, allowing full non-blocking routing or broadcasting
- Programmable transmit FIR filter with control over pre-cursor, main tap, and post-cursor for transmit equalization
- On-chip AC coupling on receive inputs
- Support for half, quarter, and eighth data rates for legacy support
- On-chip eye monitor (EOM), PRBS checker, and pattern generator
- Supports JTAG boundary scan
- Programmable output polarity inversion
- Input signal detection and CDR lock detection
- Single 2.5 V ±5% power supply
- SMBus based register configuration with optional EEPROM configuration
Applications
- SFF-8431
- CPRI (Common Public Radio Interface)
- 10G/40G Ethernet
- Backplanes
Q & A
- What is the data rate range of the DS125DF1610?
The DS125DF1610 operates at data rates ranging from 9.8 to 12.5 Gbps.
- What signal conditioning features are integrated into the DS125DF1610?
The device includes a fully adaptive CTLE, DFE, CDR, and a transmit FIR filter.
- What is the package type and size of the DS125DF1610?
The device is packaged in a 196-pin FCBGA 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 legacy data rates?
Yes, it supports half, quarter, and eighth data rates for legacy support.
- What diagnostic features are available in the DS125DF1610?
The device includes an on-chip eye monitor (EOM), PRBS checker, and pattern generator.
- How is the device configured?
The device uses SMBus based register configuration with optional EEPROM configuration.
- What is the power supply requirement for the DS125DF1610?
The device requires a single 2.5 V ±5% power supply.
- Does the DS125DF1610 support JTAG boundary scan?
Yes, it supports JTAG boundary scan for manufacturing tests.
- What are some common applications of the DS125DF1610?
Common applications include SFF-8431, CPRI, 10G/40G Ethernet, and backplanes.
