Mixed Signal/Analog

DACs deliver up to 2 VRMS output

26th April 2019
Mick Elliott

The CS43131 and CS43198 high-performance MasterHIFI digital-to-analogue converters (DACs) from Cirrus Logic are now being shipped by Mouser Electronics. Supporting sampling frequencies up to 384kHz, the 32-bit stereo audio DACs deliver exceptional audio quality in a broad range of applications including smartphones, tablets, laptops, powered speakers, digital headphones, portable media players, and home theatre systems.

The DACs deliver exceptional reproduction of high-bandwidth, high-resolution digital audio sources without draining battery life.

Built on an enhanced delta-sigma oversampling DAC architecture that includes auto mute detection and low clock jitter sensitivity, the CS43131 and CS43198 help to filter out unwanted noise for ultra-high-quality music playback

The CS43198 is a next-generation, low-power audio DAC with pseudo-differential stereo analogue output, while the CS43131 combines the DAC with a high-fidelity headphone amplifier and integrated high performance, ground-centred stereo headphone outputs.

Both DACs deliver up to 2 VRMS output and feature headphone detection, mono mode support, integrated PLL, and Direct Stream Digital (DSD) path support. The devices’ integrated PLL enables maximum clocking flexibility, while Popguard technology eliminates output transients in power-down or power-up events.

They are supported by the CDB43131K and CDB43198K evaluation kits.

Both evaluation kits include a USB cable, evaluation board, and High Dynamic Range (HDR) measurement board. The boards connect to a host adapter via I2C interface, supporting communication with a smart codec.

The evaluation kits feature configurable serial audio headers, USB audio module capability, and WISCE I2C-based software control. The CDB43198K evaluation kit also offers headphone and line audio outputs.

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