TAS5709 具有片上音频处理（软件控制）的 20W 立体声数字音频功率放大器

The TAS5709 is a 20-W, efficient, digital audio-power amplifier for driving stereo bridge-tied speakers. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital-audio processors and MPEG decoders. The device accepts a wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers.

The TAS5709 is a slave-only device receiving all clocks from external sources. The TAS5709 operates with a PWM carrier between a 384-kHz switching rate and a 352-KHz switching rate, depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz

	TAS5709
Max. Power to Bridge Tied Load	20
Min. Supported Bridge Tied Load	6
Closed/Open Loop	Open
Max. Number of Speaker Outputs	2
Input Type	Digital
Control Type	Hardware,Software
Analog Supply Min [V]	3
Analog Supply Max [V]	3.6
Digital Supply Min [V]	3
Power Stage Supply Min (V)	8
Power Stage Supply Max (V)	24
Volume Control	Yes
Dynamic Range Control (DRC)	2-Band

TAS5709 特性

Audio Input/Output
- 20-W Into an 8- Load From an 18-V Supply
- Wide PVDD Range, From 8 V to 24 V
- Efficient Class-D Operation Eliminates Need for Heatsinks
- Requires Only 3.3 V and PVDD
- One Serial Audio Input (Two Audio Channels)
- Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
Audio/PWM Processing
- Independent Channel Volume Controls With 24 dB to Mute
- Soft Mute (50% Duty Cycle)
- Programmable 2-Band Dynamic Range Control
- 22 Programmable Biquads for Speaker EQ and Other Audio-Processing Features
- Programmable Coefficients for DRC Filters
- Programmable Input and Output Mixers
- DC Blocking Filters
- Support for 3D Effects
- Pseudo Bass Support
General Features
- Serial Control Interface Operational Without MCLK
- Factory-Trimmed Internal Oscillator for Automatic Rate Detection

TAS5709 芯片订购指南

器件	状态	温度	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
TAS5709GPHP	PREVIEW	0 to 85		HTQFP (PHP) \| 48
TAS5709GPHPR	PREVIEW	0 to 85		HTQFP (PHP) \| 48
TAS5709PHP	ACTIVE	0 to 85	2.90 \| 1ku	HTQFP (PHP) \| 48	250 \| JEDEC TRAY (5+1)
TAS5709PHPR	ACTIVE	0 to 85	2.40 \| 1ku	HTQFP (PHP) \| 48	1000 \| LARGE T&R

TAS5709 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
	TAS5709GPHP	CU NIPDAU	Level-3-260C-168 HR	TAS5709GPHP	TAS5709GPHP
	TAS5709GPHPR	CU NIPDAU	Level-3-260C-168 HR	TAS5709GPHPR	TAS5709GPHPR
TAS5709PHP	TAS5709PHP	CU NIPDAU	Level-3-260C-168 HR	TAS5709PHP	TAS5709PHP
TAS5709PHPR	TAS5709PHPR	CU NIPDAU	Level-3-260C-168 HR	TAS5709PHPR	TAS5709PHPR

TAS5709 工具与软件

培训内容	型号	软件/工具类型
音频的快速搜索选择工具	AUDIO_SELECTION_TOOL	免费评估工具
TAS5709 评估模块 (EVM)	TAS5709EVM	开发电路板/EVM
TAS5709DKD2 评估模块	TAS5709DKD2EVM	开发电路板/EVM
TAS5709PHP 评估模块	TAS5709PHPEVM	开发电路板/EVM