LTC1164-7CN#PBF

Overview

The LTC1164-7CN#PBF is a low-power, clock-tunable monolithic 8th-order lowpass filter featuring linear passband phase and flat group delay. It operates on a single 5V supply with a typical supply current of 2.5mA. The cutoff frequency is determined by an external TTL or CMOS clock signal, utilizing either a 50:1 or 100:1 clock-to-cutoff ratio. The device provides better than Bessel roll-off characteristics, achieving 34dB attenuation at twice the cutoff frequency. It supports power supply ranges from ±2.375V to ±8V and includes pin-compatible alternatives within the LTC1064-X series.

Feature Summary

• Monolithic 8th-order lowpass filter architecture with linear phase response
• Clock-tunable cutoff frequency via external digital signals
• Low power consumption optimized for dynamic range preservation
• Pin-compatible design allowing direct substitution in existing layouts

Applications

• Data communication filters
• Time delay networks
• Phase matched filters

Procurement Notes

Verify the specific ordering suffix #PBF confirms lead-free compliance before procurement. Confirm package type CN corresponds to the 14-lead plastic DIP format required for the target assembly. Ensure the component status remains active as specifications may shift over time.

Selection Notes

Select this component when linear phase response and flat group delay are critical requirements. Evaluate the available clock frequencies against the desired cutoff range to ensure proper aliasing suppression. Consider the single-supply operation capability if dual rails are unavailable.

Part Context

This part belongs to the LTC1164 family of universal filter building blocks. It shares architectural similarities with the LTC1064 series but offers distinct linear phase characteristics. The CN designation identifies the specific plastic DIP packaging variant within the broader product line.

Replacement Considerations

The LTC1064-7 serves as a pin-compatible alternative offering similar filtering capabilities. Verify that the substitute meets the specific phase linearity requirements of the original design.