Data brief

For further information contact your local STMicroelectronics sales office.

October 2009

Doc ID 16593 Rev 1

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STEVAL-CCA018V1

Single-supply stereo

digital audio line driver based on the TS4657

Features

range

to 48 kHz sample rate

audio interface

operation

ground-referenced, cap-less outputs

power supply generation

noise

Description

The STEVAL-CCA018V1 demonstration board is

designed provide a platform for evaluating the

performance of the TS4657 stereo digital-to

analog-converter (DAC). The TS4657 integrates a

high-performance audio line driver capable of

3.0 to 5.5 V supply.

A single supply is sufficient for the digital and

analog parts of the circuit, eliminating the need for

external regulators.

The TS4657 is a low consumption device, with

only 22 mW of power dissipation at 3.0 V power

supply during full operation.

A 16-bit multi-bit sigma-delta DAC is used,

operating at 256xFs with over sampling digital

interpolation filters.

The digital audio data can be 16 to 24-bits 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, so bulky external output coupling

capacitors are not necessary.

STEVAL-CCA018V1

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