CTS100EL16VOTG

Overview

The CTS100EL16VOTG is an LVPECL oscillator gain stage and buffer with enable, housed in an MSOP8 package. It provides differential outputs (Q/Q¯) and high-gain outputs (QHG/Q¯HG). The device operates on a single supply voltage ranging from +3.0 V to +5.5 V or dual supplies of -3.0 V to -5.5 V. Key electrical parameters include a typical propagation delay of 250 ps, a power supply current of 40 mA, and a bandwidth exceeding 1 GHz. The component supports ECL/PECL input signals and features an internal 75 kΩ pull-down resistor on the enable pin.

Feature Summary

• Features a dedicated enable input that selectively disables the high-gain output buffer while maintaining continuous operation of the standard outputs.
• Provides two distinct output configurations: standard differential PECL outputs and high-voltage gain outputs for enhanced signal integrity.
• Includes an integrated VBB reference voltage output capable of sourcing or sinking 1.5 mA to support external biasing requirements.

Applications

• High-speed clock distribution networks requiring low jitter buffering
• Oscillator gain stages in telecommunications infrastructure
• Test and measurement equipment utilizing LVPECL signaling

Procurement Notes

Verify the specific ordering suffix to confirm the package type, as the base part number covers multiple variants including MLP8 and MSOP10. Ensure the selected variant matches the required footprint and pinout configuration for the target PCB layout. Cross-reference the datasheet revision date to confirm the accuracy of the electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when a high-bandwidth buffer with independent control over high-gain outputs is required. Verify that the system logic levels are compatible with the specified ECL or CMOS input ranges. Confirm that the thermal environment remains within the -40 °C to +85 °C operating range to maintain the guaranteed propagation delay and noise floor specifications.

Part Context

This component belongs to the CTS100EL16 family of LVPECL buffers manufactured by CTS Corporation. The family includes variants such as the CTS100EL16VONG in an MLP8 package and the CTS100EL16VOUG in an MSOP10 package. All variants share identical core functionality but differ in physical dimensions and pin assignments.

Replacement Considerations

Direct substitutes are not explicitly listed in the official documentation. Designers should evaluate other LVPECL buffers from CTS or competitors based on matching propagation delay, supply voltage compatibility, and package footprint constraints.

FAQ

How does the enable pin affect the QHG/Q¯HG outputs?

When the EN¯¯ pin is driven HIGH, the QHG/Q¯HG outputs are forced to LOW/HIGH states respectively. When EN¯¯ is LOW or floating, the input data is passed through to these outputs normally.

What is the recommended termination for the outputs?

Outputs should be terminated via 50 Ω resistors to VCC - 2 V or using a Thevenin equivalent network. Unused outputs may be left floating.

Can the device accept CMOS inputs directly?

Yes, the EN¯¯ input can be driven by CMOS logic signals. For the D/D¯ inputs, AC coupling with appropriate series resistors (e.g., 430 Ω for 3.3 V CMOS) is recommended to achieve the correct input swing.