Overview
The DS80PCI402SQE/NOPB, produced by Texas Instruments, is a 2.5-Gbps, 5.0-Gbps, and 8.0-Gbps 4-lane PCI Express repeater designed to enhance the reach of PCI Express serial links in various interconnect scenarios. This device is part of a comprehensive family of PCI Express repeaters, offering proven system interoperability and automatic rate detection and adaptation to Gen-1, Gen-2, and Gen-3 data rates. It is ideal for x4 (or lower) PCI Express configurations and supports longer distance transmission in lossy copper cables and backplanes.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Data Rate | - | - | 8 Gbps | - |
| Supply Voltage (2.5 V mode) | 2.375 | 2.5 | 2.625 | V |
| Supply Voltage (3.3 V mode) | 3.0 | 3.3 | 3.6 | V |
| Ambient Temperature Range | -40 | - | 85 | °C |
| Max Junction Temperature (Tj) | - | - | 125 | °C |
| ESD Rating | - | - | ±5 kV HBM | - |
| Package Type | - | - | 54-Pin WQFN | - |
| Package Size | - | - | 10 mm × 5.5 mm | - |
Key Features
- Automatic rate detection and adaptation to Gen-1, Gen-2, and Gen-3 speeds
- Seamless support for Gen-3 transmit FIR handshake
- Receiver equalization (up to 36 dB) and transmit de-emphasis (up to 12 dB)
- Adjustable transmit VOD: 0.8 to 1.3 Vp-p (pin mode)
- Low power dissipation with ability to turn off unused channels: 65 mW/channel
- Automatic receiver detect (hot-plug)
- Multiple configuration modes: Pins/SMBus/Direct-EEPROM load
- Flow-thru pinout for easy board layout
- Single supply voltage: 2.5 or 3.3 V (selectable)
- ±5 kV HBM ESD rating
- Operating temperature range: -40°C to 85°C
Applications
The DS80PCI402 is designed for use in various PCI Express applications, including:
- PCI Express Gen-1, Gen-2, and Gen-3 configurations
- Board-to-board interconnects
- Cable interconnects (up to 10 meters or more)
- Backplanes (up to 40 inches or more) with multiple connectors
- Root Complex and Add-in Card designs
Q & A
- What is the maximum data rate supported by the DS80PCI402?
The DS80PCI402 supports data rates up to 8 Gbps.
- What are the available supply voltage options for the DS80PCI402?
The device can operate with either 2.5 V or 3.3 V supply voltage.
- What is the operating temperature range of the DS80PCI402?
The operating temperature range is -40°C to 85°C.
- How does the DS80PCI402 handle ESD protection?
The device has a ±5 kV HBM ESD rating.
- What are the configuration modes available for the DS80PCI402?
The device supports configuration through pins, SMBus, and direct-EEPROM load.
- How does the DS80PCI402 manage power consumption?
The device has low power dissipation, with the ability to turn off unused channels, consuming 65 mW per channel.
- What is the package type and size of the DS80PCI402?
The device comes in a 54-Pin WQFN package, measuring 10 mm × 5.5 mm.
- Does the DS80PCI402 support hot-plug detection?
Yes, the device features automatic receiver detect (hot-plug) functionality.
- How does the DS80PCI402 enhance signal integrity?
The device includes receiver equalization (up to 36 dB) and transmit de-emphasis (up to 12 dB) to enhance signal integrity.
- What are the typical applications of the DS80PCI402?
The device is used in PCI Express Gen-1, Gen-2, and Gen-3 configurations, board-to-board interconnects, cable interconnects, and backplanes.
