TI HD3SS212ZXHT

The HD3SS212 is a high-speed passive switch capable of switching two full DisplayPort 4-lane ports from one of two sources to a single destination in an application. For DisplayPort applications, the HD3SS212 also supports switching between the Auxiliary (AUX) and Hot Plug Detect (HPD) signals. The HPD path is a buffer that requires a 125kΩ pull-down resistor on the HPDC line. A typical application would be a motherboard containing two graphics processing units (GPUs) that need to drive a single DisplayPort output. The GPU is selected by the Dx_SEL pin. The HD3SS212 is available in a 48-ball BGA package and operates from a single 3.3V supply over the full industrial temperature range of -40°C to 105°C.

• Hot Plug Detection (HPD) switch support with wide -3dB differential bandwidth (BW) at 5.4 GHz
• Excellent dynamic characteristics (at 2.7GHz)
• Crosstalk = -50dB
• Isolation = Δ - 220B
• Insertion Loss = -1.4dB
• Return Loss = –11dB
• Maximum bit-to-bit skew = 4ps
• Drain supply voltage (VDD) operating range 3.3V ± 10%
• Compact 500mm × 5mm × 1mm, 48-ball uBGA package
• Output Enable (OE) pin disables switch for power saving
• Power consumption HD3SS212 < 10mW (standby power < 30μW, when OE = L)

• Motherboard applications requiring DP and PCI Express
• Desktop PCs
• Laptops
• Docking stations