PRL-454T, 1:4 TTL to LVDS Translator and Fanout Buffer

SKU: PRL-454T-SMA

$ 1,311.00

Applications:

  • Converting TTL Input to LVDS Outputs
  • Conversion of Single-Ended TTL Signals to Differential Signals for Driving Long Lines
  • Distributing Clock/Data Signals
    • High Speed Digital Communications Systems Testing
    • Satellite Telemetry/Ground Station System Integration

      Features:

      • fmax > 400 MHz for 50 Ω input and > 250 MHz for 1 k Ω input
      • 1 kΩ or 50 Ω TTL Input, selectable by a switch
      • 500 ps Typical Output Rise & Fall Times
      • 4 LVDS Outputs for Driving 50 Ohm Cables into 100 Ω Floating Loads
      • 300 ps Channel to Channel skew, typical
      • SMA I/O Connectors
      • Operates from single +8 to +12 VDC power supply with only 150 mA max.
      • Self-contained 1.3 x 2.9 x 2.9-in. unit includes ±8.5 V/1.8 A AC/DC Adapter

      Description

      The PRL-454T-SMA is a 1:4 digital signal fanout buffer and level translator with one TTL input and four LVDS outputs.

      The TTL input has a 1 kΩ or 50 Ω input impedance, selectable by a toggle switch. The 1 kΩ input setting is used most often for receiving signals from digital I/O boards. These DIO boards are generally not designed for driving 50 Ω loads. For this type of application, it is recommended that the interconnecting cable length be limited to no more than 18 inches. For applications exceeding this length, pre-buffering the TTL signal with a PRL-444, High Input Impedance Line Driver, may be required.

      When switched to the 50 Ω input position, fmax can be increased beyond 400 MHz. Since very few affordable TTL clock generators can run beyond 250 MHz, we recommend that the PRL-177A-500 be used for testing the PRL-454T-SMA. The PRL-454T-SMA has a 5 V tolerant input and can be driven by the PRL-177A-500 directly.

      The PRL-454T-SMA is supplied with a PRL-760E ±9.0 V/1.8 A AC/DC adapter and housed in a 1.3 x 2.9 x 2.9-in. extruded aluminum enclosure. The PRL-454T-SMA may also be ordered without the power supply as part number PRL-454T-SMA-OEM. A maximum of four units can share the included PRL-760E AC/DC adapter using additional units of cable #88000102-4. If mounting is desired, a pair of the #35001420 mounting brackets can accommodate any two PRL modules of the same length.