TCXO Clock Buffers

The TCXO (SL188xx) family is a high performance 3-output LVCMOS TCXO clock buffer with low additive phase noise and low power dissipation. Each output clock can be controlled independently by separate output enable pins. The SL188xx clock buffers can be used in baseband mobile RF applications including WLAN, Bluetooth, and DVB-H as an input clock reference. The device operates from single power supply from 1.70 V to 3.65 V and supports operating temperature from -40 °C to 85 °C.


  • Low current consumption : 2.7mA-typical (VDD=1.8 V and CL=0)
  • 1.70 V to 3.65 V power supply operation
  • 10 MHz to 52 MHz CLKIN range
  • Supports LVCMOS and clipped sine wave inputs
  • Supports 3 single-ended LVCMOS square wave outputs
  • OE1/2/3 functions for each CLKOUT1/2/3 outputs
  • OE_OSC control pin to enable external TCXO/XO
  • Ultra-low phase noise
  • Ultra-low standby current
  • 10-pin TDFN package (1.4 x 2.0 x 0.75 mm)
  • Operating temperature range:
    •  Industrial -40 ºC to 85 ºC

Product Matrix

Part Number Data Sheet Clock Inputs Clock Outputs Frequency Min Frequency Max Output Format(s) VDD (V) VDDO (V) Package Type Universal Buffers Differential Buffers LVCMOS Buffers PCI Express Buffers Zero Delay Buffers
1 3 10 52 LVCMOS 1.8; 2.5; 3.3 TDFN10 No No Yes No No
1 3 10 52 LVCMOS 1.8; 2.5; 3.3 TDFN10 No No Yes No No
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