AK4114VQ

Overview

The AK4114VQ is a digital audio transceiver supporting 192kHz sampling rates and 24-bit resolution. It features an 8-channel receiver input selector and 2-channel transmission output capability, accommodating both through-output and DIT modes. The device includes a low jitter analog PLL with a lock range of 32kHz to 192kHz and supports AES3, IEC60958, S/PDIF, and EIAJ CP1201 standards. Operating voltage ranges from 2.7V to 3.6V for analog and digital supplies, with the input buffer tolerant up to 5.5V. It utilizes a 48-pin LQFP package and operates within a temperature range of -10°C to 70°C.

Feature Summary

• Supports automatic detection of Non-PCM bit streams including AC-3 and MPEG formats alongside DTS-CD detection capabilities.
• Integrates a low jitter analog PLL for clock recovery across a wide frequency range from 32kHz to 192kHz.
• Provides dedicated buffers for Q-subcode data retrieval in CD applications and channel status decoding for consumer and professional modes.
• Offers flexible control interfaces via serial µP I/F or parallel hardware pins for mode configuration.

Applications

• Digital audio equipment requiring high-resolution interface transceivers
• AC-3 application systems when combined with multi-channel codecs
• CD players utilizing Q-subcode buffer functions

Procurement Notes

Verify the specific ordering suffix VQ corresponds to the 48-pin LQFP package variant. Confirm that the component meets the required RoHS compliance standards as indicated by the manufacturer's documentation. Ensure the operating environment stays within the specified -10°C to 70°C temperature range for optimal performance.

Selection Notes

Select this component for designs requiring simultaneous reception of multiple digital audio sources and transmission flexibility. Consider the master clock output options (64fs/128fs/256fs/512fs) when interfacing with downstream DACs or ADCs. Verify power supply requirements align with the 2.7V to 3.6V operational limits.

Part Context

The AK4114VQ belongs to the AK4114 series of high-feature digital audio interface transceivers manufactured by Asahi Kasei Microdevices. It is designed to handle complex digital audio protocols and provides system-level solutions for multi-channel audio processing environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential cross-references or updated model designations.

FAQ

How does the AK4114VQ detect Non-PCM bit streams?

The device automatically detects Non-PCM bit streams by identifying specific sync patterns, such as the 96-bit sync code for AC-3, which sets the AUTO bit to '1' upon detection.

What are the master clock output frequencies available?

The AK4114VQ provides two master clock outputs (MCKO1 and MCKO2) that can be configured to generate frequencies of 64fs, 128fs, 256fs, or 512fs depending on the selected operation mode.

Can the AK4114VQ handle Q-subcode data from CDs?

Yes, the AK4114VQ includes a Q-subcode buffer that captures Q-subcode data into registers when specific sync word conditions are met, facilitating CD application integration.