TAS5704 具有 EQ、DRC 和反馈（硬件控制）的 20W 立体声数字音频功率放大器

The TAS5704 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. Two serial data inputs allow processing of up to four discrete audio channels and seamless integration to most digital audio processors accepting a wide range of input data and clock rates. A hardware configurable data path allows these channels to be routed to the internal speaker drivers or output via the subwoofer PWM outputs.

The TAS5704 is a slave-only device receiving all clocks from external sources. The TAS5704 operates at a 384-kHz switching rate for 32-, 48-, 96-, and 192-kHz data, and at a 352.8 kHz switching rate for 44.1-, 88.2-, and 176.4-kHz data. The 8× oversampling combined with the fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz

	TAS5704	TAS5706A	TAS5706B	TAS5708	TAS5710
Max. Power to Single-Ended Load	20		10
Max. Power to Bridge Tied Load	40	20	20	20	20
Max. Power to Parallel Bridge Tied Load	60
Min. Supported Single-Ended Load	4	4	4
Min. Supported Bridge Tied Load	6	8	8	6	6
Min. Supported Parallel Bridge Tied Load	3.2
Closed/Open Loop	Closed	Closed	Closed	Closed	Closed
Max. Number of Speaker Outputs	4	2	4	2	2
Input Type	Digital	Digital	Digital	Digital	Digital
Control Type	Hardware	Hardware,Software	Hardware,Software	Hardware,Software	Software
Analog Supply Min [V]	3	3	3	3	3
Analog Supply Max [V]	3.6	3.6	3.6	3.6	3.6
Digital Supply Min [V]	3	3	3	3	3
Power Stage Supply Min (V)	10	10	10	8	8
Power Stage Supply Max (V)	26	26	26	26	26
Volume Control		Yes	Yes	Yes	Yes
Dynamic Range Control (DRC)		2-Band	2-Band	Single-Band	2-Band

TAS5704 特性

Audio Input/Output
- 20-W into an 8- Load From an 18-V Supply
- Two Serial Audio Inputs (Four Audio Channels)
- Supports Multiple Output Configurations:
  - 2-Ch Bridged Outputs (20 W × 2)
  - 4-Ch Single-Ended Outputs (10 W × 4)
  - 2-Ch Single-Ended + 1-Ch Bridged (2.1) (10 W × 2 + 20 W)
Closed Loop Power Stage Architecture
- Improved PSRR Reduces Power Supply Performance Requirements
- Higher Damping Factor Provides for Tighter, More Accurate Sound With Improved Bass Response
- Lower EMC Emissions
- Output Power is Independent of Supply Voltage Variation
Wide PVCC Range From (10 V to 26 V)
Supports 32-kHz–192-kHz (DVD-Audio) Sample Rates (LJ/RJ/I2S)
Line-Level Subwoofer PWM Outputs
Audio/PWM Processing (Hardware Controlled)
- 4-Step Gain Control (-3dB, 3dB, 9dB, 12dB)
- Soft Mute Control (50% Output Duty Cycle)
Factory-Trimmed Internal Oscillator Enables Automatic Detection of Incoming Sample Rates
Thermal and Short-Circuit Protection

TAS5704 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
TAS5704PAP	ACTIVE	0 to 85	3.60 \| 1ku	HTQFP (PAP) \| 64	160 \| JEDEC TRAY (5+1)
TAS5704PAPG4	ACTIVE	0 to 85	3.60 \| 1ku	HTQFP (PAP) \| 64	160 \| JEDEC TRAY (5+1)
TAS5704PAPR	ACTIVE	0 to 85	3.00 \| 1ku	HTQFP (PAP) \| 64	1000 \| LARGE T&R
TAS5704PAPRG4	ACTIVE	0 to 85	3.00 \| 1ku	HTQFP (PAP) \| 64	1000 \| LARGE T&R

TAS5704 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
TAS5704PAP	Green (RoHS & no Sb/Br)	NIPDAU	TAS5704PAP	TAS5704PAP	TAS5704DKD
TAS5704PAPG4	Green (RoHS & no Sb/Br)	NIPDAU	TAS5704PAPG4	TAS5704PAPG4	TAS5704DKDR
TAS5704PAPR	Green (RoHS & no Sb/Br)	CU NIPDAU	TAS5704PAPR	TAS5704PAPR	TAS5704PHD
TAS5704PAPRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	TAS5704PAPRG4	TAS5704PAPRG4	TAS5704PHDR

TAS5704 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
TAS5704DKD2 评估模块	TAS5704DKD2EVM	开发电路板/EVM
TAS5704PHD 评估模块	TAS5704PHD2EVM	开发电路板/EVM