Diodes Incorporated
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1:4 Selectable Differential Buffer

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Product Description

The PI6C49S1504 is a high performance fanout buffer devicewhich supports up to 1.5GHz frequency. The device also uses Diodes' proprietary input detection technique to make sure illegal input conditions will be detected and reflected by output states. This device is ideal for systems that need to distribute low jitter clock signals to multiple destinations.


  • 4 differential outputs with 2 banks
  • User configurable output signaling standard for each bank: LVDS or LVPECL or HCSL
  • LVCMOS reference output up to 200MHz
  • Up to 1.5GHz output frequency for differential outputs
  • Ultra low additive phase jitter: < 0.03 ps (typ) (differential 156.25MHz, 12KHz to 20MHz integration range)
  • Selectable reference inputs support either single-ended or differential or Xtal
  • Low skew between outputs within banks (<40ps)
  • Low delay from input to output (Tpd typ. < 1.5ns)
  • Separate Input output supply voltage for level shifting
  • 2.5V / 3.3V power supply
  • Industrial temperature support
  • TSSOP-28 package


  • Networking systems including switches and Routers
  • High frequency backplane based computing and telecom platforms

Product Specifications

Product Parameters

Compliance (Only Automotive(Q) supports PPAP) Standard
Function Buffer
Number of Outputs 4
Output Type(s) Selectable Differential
Maximum Output Frequency (MHz) 1500
Additive Jitter (ps) 0.03
Supply Voltage (V) 2.5, 3.3
Input Type(s) Crystal, LVTTL, LVCMOS, Differential
Skew (ps) 40
Ambient or Junction Temperature (°C) -40 to 85

Technical Documents

Recommended Soldering Techniques