MK2703BSLFTR

Overview

The MK2703BSLFTR is a PLL audio clock synthesizer manufactured by Renesas Electronics (formerly ICS/IDT). It utilizes a 27 MHz crystal or clock input to generate buffered reference and selectable audio clocks. The device operates at 3.3 V or 5 V with zero ppm synthesis error. Key electrical parameters include an operating voltage range of 3.13–5.50 V, supply current of 10 mA typ, and maximum absolute jitter of ±150 ps. It features frequency-locked outputs for 8.192, 11.2896, 12.288, and 24.576 MHz via S1/S0 inputs.

Feature Summary

• Patented analog PLL technique providing zero ppm synthesis error across all generated clocks
• Selectable audio clock frequencies: 8.192, 11.2896, 12.288, and 24.576 MHz determined by S1/S0 pins
• RoHS compliant Pb-free packaging in an 8-pin SOIC (150 mil) package
• Operates on 3.3 V or 5 V supply with advanced sub-micron CMOS process

Applications

• Set-top box systems requiring low-jitter clock generation
• Multimedia systems replacing discrete oscillators and VCXOs
• Audio processing circuits needing precise frequency-locked references

Procurement Notes

Verify the 'LF' suffix confirms RoHS compliance and Pb-free status. Confirm the 'TR' suffix indicates Tape and Reel shipping format. Ensure the base part number matches the commercial temperature grade (0 to +70 °C) rather than the industrial variant (-40 to +85 °C), which uses an 'I' suffix. Cross-reference the manufacturer history from ICS to IDT to Renesas for accurate sourcing documentation.

Selection Notes

Select this component when replacing crystals or VCXOs in set-top boxes. Use S1 and S0 pin logic to choose between 8.192, 11.2896, 12.288, or 24.576 MHz audio clocks. Connect a fundamental mode AT cut 27 MHz crystal to X1/X2 pins. Add decoupling capacitors near VDD/GND pins. Use series termination resistors for trace lengths exceeding one inch.

Part Context

This part belongs to the MK2703B family of PLL audio clock synthesizers. The specific suffix 'SLFTR' denotes the commercial temperature range (S), Lead-Free/RoHS compliant (LF), and Tape and Reel packaging (TR). Other variants include industrial temperature versions (MK2703BSILFTR) and tube-packaged options.

Replacement Considerations

Direct substitutes within the same family include MK2703BSLFTR (commercial, tube vs reel difference only if TR is not strictly required) or MK2703BSILFTR for industrial temperature requirements. Verify that the replacement maintains the 8-pin SOIC package and 27 MHz input requirement.