MAX4950 四通道PCI Express均衡器/转接驱动

MAX4950 四通道PCI Express均衡器/转接驱动器

The MAX4950 PCI Express (PCIe®) quad equalizer/redriver operates from a single +3.3V supply. This device improves signal integrity at the receiver through programmable input equalization and programmable redrive circuitry. The output circuitry reestablishes deemphasis lost on the board, compensating for circuit board loss. This device permits optimal placement of key PCIe components and longer runs of stripline, microstrip, or cable.

The MAX4950 contains four identical buffers capable of equalizing differential signals at data rates up to 5GT/s, and features electrical idle and receiver detection on each channel. The MAX4950 is ideal for use with PCIe Gen I (2.5GT/s) and Gen II (5.0GT/s) data rates and features a power-saving mode.

The MAX4950 is available in a small, lead-free, 42-pin (3.5mm x 9.0mm) TQFN package for optimal layout and minimal space requirements. The board traces are flow-through for ease of layout. The MAX4950 is specified over the 0°C to +70°C operating temperature range.

关键特性

Single +3.3V Supply Operation

Generation I (2.5GT/s) and Generation II (5.0GT/s) Capable

Return Loss: = 10dB (f ≤ 1.25GHz)

• ≥ 8dB (f ≤ 2.5GHz)

Very Low Latency

• 280ps Propagation Delay

Individual Lane Detection

Low Lane-to-Lane Skew: ±50ps

Total Jitter ≤ 35psP-P at BER = 10^-12

Three-Level-Programmable Input Equalization

Three-Level-Programmable Output Deemphasis

On-Chip 50Ω Input/Output Terminations

±2kV Human Body Model (HBM) Protection on All Pins

Space-Saving, 3.5mm x 9.0mm, TQFN Packaging

应用/使用

 通信交换机
 台式计算机
 工业PC
 笔记本电脑(外置视频卡)
 服务器
 存储局域网
 测试设备