AK4137EQ

Overview

The AK4137EQ is a 2-channel digital sample rate converter (SRC) designed for high-end audio systems. It supports input and output sample rates ranging from 8 kHz to 768 kHz with a dynamic range of 186 dB. The device features an internal oscillator, eliminating the need for external master clocks. It operates on power supplies of 3.0 V to 3.6 V and 1.7 V to 1.9 V, functioning within a temperature range of -40°C to 105°C. Packaged in a 48-LQFP (7x7 mm) surface-mount case, it facilitates system configuration simplification.

Feature Summary

• Internal oscillator removes requirement for external master clocks
• Supports PCM-DSD data conversion for various audio formats
• Wide sample rate range: 8 kHz to 768 kHz
• High dynamic range of 186 dB

Applications

• Network Audio systems
• SACD players
• USB-DACs
• High-end Audio Systems

Procurement Notes

Verify component status as NRND (Not Recommended for New Designs). Confirm packaging details match Tape & Reel or Cut Tape requirements. Ensure voltage supply specifications align with 3V-3.6V and 1.7V-1.9V rails. Check operating temperature limits for -40°C to 105°C compliance.

Selection Notes

Select this component when interfacing different sample rates is required without external clocking. Suitable for applications demanding high dynamic range and DSD support. Verify package compatibility with 48-LQFP footprint and ensure power supply constraints are met.

Part Context

This part belongs to the Asahi Kasei Microdevices/AKM audio special purpose category. It serves as a digital interface solution for converting audio sample rates in professional and consumer audio equipment.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.