PCM1690DCA

ADCs/DACs - Special Purpose Overview

The PCM1690DCA is an eight-channel audio digital-to-analog converter (DAC) manufactured by Texas Instruments. It features a 24-bit resolution and supports sampling rates up to 192 kHz. The device operates on a single 5V supply voltage, with a specified range of 4.5 V to 5.5 V. It utilizes I2C and SPI serial interfaces for control. Key performance metrics include a signal-to-noise ratio (SNR) of 113 dB and a dynamic range of 113 dB. The gain error is specified at +/- 6% of the full-scale range. The component is housed in a 48-pin HTSSOP package and is rated for operation within a temperature range of -40°C to +85°C.

ADCs/DACs - Special Purpose Feature Summary

• Eight-channel architecture with 24-bit resolution and 192 kHz maximum sampling rate
• High-fidelity audio performance with 113 dB SNR and dynamic range
• Dual serial interface support via I2C and SPI protocols
• Automotive qualification compliant with AEC-Q100 standards

ADCs/DACs - Special Purpose Applications

• Multi-zone automotive audio systems requiring synchronized channel output
• Home theater receivers and surround sound processors
• Professional audio mixing consoles and digital signal processing units
• High-end consumer audio amplifiers and integrated stereo systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'DCA' corresponds to the tube packaging format, distinct from the 'DCAR' tape-and-reel variant. Confirm that the AEC-Q100 qualification status meets the specific reliability requirements for the target application environment. Ensure compatibility with the 5V analog power supply domain before integration into the system design.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an eight-channel DAC solution is required for high-resolution audio applications. The 113 dB SNR makes it suitable for premium audio segments. Verify that the host controller can support the necessary I2C or SPI communication speeds. Consider the thermal dissipation characteristics, as the power consumption reaches approximately 621 mW under typical operating conditions.

ADCs/DACs - Special Purpose Part Context

The PCM1690 belongs to the PCM1690 series of audio DACs from Texas Instruments. It serves as a multi-channel alternative to stereo counterparts like the PCM1793 or PCM1796. The device is designed to replace older multi-channel solutions by offering higher resolution and integrated digital filtering capabilities within a compact 48-pin HTSSOP footprint.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-compatible replacements are not explicitly confirmed in the provided data. Evaluate the PCM1691 for potential upgrades, noting its similar 24-bit/192kHz specifications but verifying interface and pinout compatibility.