MK2703STR

Overview

The MK2703STR is a PLL audio clock synthesizer manufactured by Renesas Electronics Corporation, originally designed by IDT. It utilizes patented analog Phase Locked Loop techniques to generate buffered reference and selectable audio clocks from a 27 MHz crystal or clock input. The device supports MPEG sampling rates of 32 kHz, 44.1 kHz, 48 kHz, and 96 kHz with zero ppm synthesis error. Operating on a single supply voltage of 3.3 V or 5 V, it features low jitter performance with a maximum absolute short-term jitter of ±190 ps. Packaged in an 8-pin SOIC, it is intended for set-top box and multimedia systems.

Feature Summary

• Patented zero ppm synthesis error ensures all output frequencies are frequency locked.
• Supports standard MPEG sampling rates: 32 kHz, 44.1 kHz, 48 kHz, and 96 kHz via pin selection.
• Low jitter performance with maximum absolute short-term jitter of ±190 ps.
• Operates at 3.3 V or 5 V with typical operating supply current of 25 mA.

Applications

• Set-top box systems
• Multimedia systems
• DVD applications requiring exact audio clock sampling

Procurement Notes

Verify component authenticity as the original manufacturer IDT was acquired by Renesas Electronics. Confirm package type is 8-pin SOIC and shipping format is Tape and Reel. Check RoHS compliance status if lead-free variants are required for specific manufacturing processes.

Selection Notes

Select based on required audio sampling frequency (32k, 44.1k, 48k, or 96k) determined by S0/S1 pin configuration. Ensure system operates within 3.13 V to 5.5 V supply range. For industrial environments, consider the MK2703SI variant rated for -40°C to +85°C instead of the commercial MK2703S.

Part Context

The MK2703 belongs to the IDT/Renesas family of PLL audio clock synthesizers designed to replace discrete oscillators and VCXOs. The 'STR' suffix indicates the part is supplied in a Tape and Reel packaging format, suitable for automated surface-mount assembly.

Replacement Considerations

The datasheet recommends the MK2703B for new designs. Verify compatibility with existing PCB layouts and crystal load capacitance requirements when substituting.