DS80PCI402是TI公司的一款PCIe转接驱动器/中继器产品，DS80PCI402是具有均衡化和去加重功能的 2.5 Gbps/5.0 Gbps/8.0 Gbps 4 通道 PCI Express 中继器，本页介绍了DS80PCI402的产品说明、应用、特性等，并给出了与DS80PCI402相关的TI元器件型号供参考。
DS80PCI402 - 具有均衡化和去加重功能的 2.5 Gbps/5.0 Gbps/8.0 Gbps 4 通道 PCI Express 中继器 - PCIe转接驱动器/中继器 - PCIExpress - TI公司（Texas Instruments，德州仪器）
- Comprehensive Family, Proven System Interoperability
- DS80PCI102 : x1 PCIe Gen-1, Gen-2, and Gen-3
- DS80PCI402 : x4 PCIe Gen-1, Gen-2, and Gen-3
- DS80PCI800 : x8/x16 PCIe Gen-1, Gen-2, and Gen-3
- Automatic Rate-Detect and Adaptation to Gen-1, Gen-2, and Gen-3 Speeds
- Seamless Support for Gen-3 Transmit FIR Handshake
- Receiver EQ (up to 36 dB), Transmit De-Emphasis (up to 12 dB)
- Adjustable Transmit VOD: 0.8 to 1.3 Vp-p (Pin Mode)
- 0.2 UI of Residual Deterministic Jitter at 8 Gbps After 40 Inches of FR4 or 10 m 30-awg PCIe Cable
- 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: 54-Pin WQFN (10 mm-× 5.5-mm, 0.5-mm Pitch)
- Single Supply Voltage: 2.5 or 3.3 V (Selectable)
- ±5 kV HBM ESD Rating
- −40°C to 85°C Operating Temperature Range
PCI Express Gen-1, Gen-2, and Gen-3
The DS80PCI402 is a low-power, 4-lane repeater with 4-stage input equalization, and an output de-emphasis driver to enhance the reach of PCI-Express serial links in board-to-board or cable interconnects. This device is ideal for x4 (or lower) PCI-Express configuration, and it automatically detects and adapts to Gen-1, Gen-2, and Gen-3 data rates for easy system upgrade.
DS80PCI402 offers programmable transmit de-emphasis (up to 12 dB), transmit VOD (up to 1300 mVp-p), and receive equalization (up to 36 dB) to enable longer distance transmission in lossy copper cables (10 meters or more), or backplanes (40 inches or more) with multiple connectors. The receiver can open an input eye that is completely closed due to inter-symbol interference (ISI) introduced by the interconnect medium.
The programmable settings can be applied easily through pins or software (SMBus/I2C), or can be loaded through an external EEPROM. When operating in the EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| DS80PCI402 | WQFN (54) | 10.00 mm × 5.50 mm |
