STA321 4-channel digital audio system with FFX driver

The STA321 is a single chip solution for digital audio processing applications of up to 4.0 channels.

The STA321 is part of the Sound Terminal™ family that together with the digital power stage provides full digital audio streaming to the speaker, offering cost effectiveness, low energy dissipation and sound enrichment.

The STA321 input section consists of two multiplexed stereo analog inputs, a 16-bit ADC and two independent digital input interfaces. The serial audio data input interface accepts all possible formats, including the popular I2S format. There is also a digital output interface fed by the ADC or by the digitally processed signals.

技术特性

High efficiency FFX™ class-D modulator
100-dB dynamic range
Two stereo channels with I2S input/output data interface
16-bit stereo ADC input with PGA and microphone biasing
Analog and digital muxing/mixing capability
4-channel input sample rate converter (8 kHz to 192 kHz)
Four channels of 24-bit audio processing
Flexible channel mapping and routing
Output configurations:
- 2.0
- 2.1
- 4.0
- Mono
Embedded CMOS bridge: up to 0.5 W/channel
pfStart™ for pop-free single-ended operations
Play and record simultaneous operation
Pre and post mix stages
Individual channel and master gain/attenuation
Digital gain/attenuation -105 dB to +36 dB in 0.5-dB steps
Soft volume update and muting
DC-blocking selectable high-pass filter
Selectable de-emphasis filter
Up to 13 28-bit user programmable biquads (EQ) per channel
Bass/treble tone control
Ternary, binary or phase shift modulation
PWM output
Headphone output with jack detector
I²C control

功能框图

STA321 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
STA321TR	Active	1.9	1000	TQFP 64 10x10x1.4	Tape And Reel		STA321TR
STA321	Active	1.9	1000	TQFP 64 10x10x1.4	Tube		STA321

DATASHEET

下载	描述	版本	大小
STA321	4-channel digital audio system with FFX™ driver	3	2149KB