About the TS4657

AN3001

2/12

Doc ID 15911 Rev 1

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About the TS4657

The TS4657 is a stereo digital-to analog-converter (DAC) that integrates a high-

performance audio line driver capable of generating a 2.2 Vrms output level from a single

3.0 to 5.5 V supply.

One single supply is sufficient for the digital and analog parts of the circuit, thus eliminating

the need for external regulators.

The TS4657 is a low-power consumption device. It features only 22 mW power dissipation

at a 3.0 V power supply in full operation.

A 16-bit multi-bit sigma delta DAC is used, operating at 256xFs with oversampling digital

interpolation filters. The digital audio data can be 16- to 24-bit long and sample rates from

32 to 48 kHz are supported.

The output stage signal is ground-referenced by using an internal self-generated negative

power supply, and as such external bulky output coupling capacitors are not necessary.

The TS4657 features the following.

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Power supply range: 3.0 V to 5.5 V.

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16- to 24-bit audio data format stereo DAC, 32 to 48 kHz sample rate.

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I²S, right- or left-justified compatible digital audio interface.

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Internal negative power supply to ensure ground-referenced, capless outputs.

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No necessity for an external capacitor for negative power supply generation.

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Integrated structure to suppress pop and click noise

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Standby mode active low.

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QFN20 package, 4mmx4mm,500µm pitch.

Refer to the datasheet entitled "Single supply stereo digital audio line driver with 2.2 Vrms

capless outputs" for complete information on the TS4657.