TS4657 Single-supply digital audio line driver with 2.2 Vrms capacitor-less outputs

The TS4657 is a stereo 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 is packaged in a small 4 x 4 mm QFN20 package, ideal for portable applications.

技术特性

Single 3.0 to 5.5 V supply for DAC and line driver
Audio line output: 2.2 Vrms for all VCC range
16- to 24-bit audio data format stereo DAC, 32 to 48 kHz sample rate
I²S, right- or left-justified compatible digital audio interface
95 dB SNR A-weighted at 48 kHz, VCC =5 V
7.4 mA current consumption at VCC = 3.0 V, full operation
Internal negative power supply to ensure ground-referenced, capless outputs
No external capacitor needed for the negative power supply generation
Integrated structure to suppress pop and click noise
Available in thin QFN20 4 mm x 4 mm package

功能框图

TS4657 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
TS4657IQT	Active		1000	VFQFPN 20 4x4x1.0	Tape And Reel	-40 °C-85 °C	TS4657IQT

DATASHEET

下载	描述	版本	大小
TS4657	DS6087: Single supply stereo digital audio line driver with 2.2 Vrms capless outputs	1	1409KB

APPLICATION NOTES

下载	描述	版本	大小
AN3001	AN3001: Demonstration board user guidelines for the TS4657 single supply stereo digital audio line driver	1	449KB

USER MANUALS

下载	描述	版本	大小
UM0722	UM0722: Getting started with STEVAL-CCA021V1, STM32 performance line USB demonstration kit	1	1926KB

BOARDS AND TOOLS

下载	描述
STEVAL-CCA018V1	Single-supply stereo digital audio line driver based on the TS4657
STEVAL-CCA021V1	USB audio demonstration board based on the STM32F103RE and TS4657