TAS5705 具有 EQ 和 DRC（s/w 控制）的 20W 立体声数字音频功率放大器

The TAS5705 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 and MPEG decoders. The device accepts a wide range of input data and clock rates. A fully programmable data path allows these channels to be routed to the internal speaker drivers or output via the line-level subwoofer or headphone PWM outputs.

The TAS5705 is a slave-only device receiving clocks from external sources. The TAS5705 operates at a 384-kHz switching rate for 32-, 48-, 96-,and 192-kHz data and 352.8-kHz switching rate for 44.1-, 88.2- and 176.4-kHz data

	TAS5705
Max. Power to Single-Ended Load	10
Max. Power to Bridge Tied Load	20
Min. Supported Single-Ended Load	4
Min. Supported Bridge Tied Load	8
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)	23
Volume Control	Yes
Dynamic Range Control (DRC)	2-Band

TAS5705 特性

Audio Input/Output
- 20-W Into an 8- Load From an 18-V Supply
- Wide Power-Supply Range From (8 V to 23 V)
- Efficient Class-D Operation Eliminates Need for Heat Sinks
- Requires Only Two Power-Supply Rails
- Two Serial Audio Inputs (Four Audio Channels)
- Supports 32-kHz–192-kHz Sample Rates (LJ/RJ/I2S)
- Headphone PWM Outputs
- Subwoofer PWM Outputs
Audio/PWM Processing
- Independent Channel Volume Controls With 24-dB to –100-dB Range
- Soft Mute (50% Duty Cycle)
- Programmable Dynamic Range Control
- 16 Adaptable Biquads for Speaker EQ
  - Seven Biquads for Left and Right Channels
  - Two Biquads for Subwoofer Channel
- Adaptive Coefficients for DRC Filters
- Programmable Input and Output Mixers
- DC Blocking Filters
- Loudness Compensation for Subwoofer

TAS5705 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
TAS5705PAP	ACTIVE	0 to 85	2.95 \| 1ku	HTQFP (PAP) \| 64	160 \| JEDEC TRAY (5+1)
TAS5705PAPG4	ACTIVE	0 to 85	2.95 \| 1ku	HTQFP (PAP) \| 64	160 \| JEDEC TRAY (5+1)
TAS5705PAPR	ACTIVE	0 to 85	2.45 \| 1ku	HTQFP (PAP) \| 64	1000 \| LARGE T&R
TAS5705PAPRG4	ACTIVE	0 to 85	2.45 \| 1ku	HTQFP (PAP) \| 64	1000 \| LARGE T&R

TAS5705 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
TAS5705PAP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TAS5705PAP	TAS5705DKD
TAS5705PAPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TAS5705PAPG4	TAS5705DKDR
TAS5705PAPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TAS5705PAPR	TAS5705PHD
TAS5705PAPRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	TAS5705PAPRG4	TAS5705PHDR

TAS5705 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
TAS5705 评估模块 (EVM)	TAS5705EVM2	开发电路板/EVM
TAS5705DKD2 评估模块	TAS5705DKD2EVM	开发电路板/EVM
TAS5705PHD 评估模块	TAS5705PHD2EVM	开发电路板/EVM