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高品质的软硬件解决方案,大幅提升终端用户播放体验并有效保护扬声器

概述

汇顶科提供高效的D类音频放大器系列产品,其片上DSP搭载先进的SpeakerBoost声学增强和保护算法,实现温度和振幅保护功能;内部的自适应DC-DC转换器可提高电源电压,满足大幅提升音质的苛刻需求。得益于可编程智能放大器由外部主机处理器来管理适配扬声器升压固件,汇顶科技的非DSP智能放大器能以更紧凑的芯片尺寸,提供比肩片上DSP智能放大器的硬件性能。汇顶科技为客户提供领先的一站式智能音频放大器解决方案,实现微型扬声器最大程度的性能释放。

产品总览

智能音频放大器选型表

Product Info

Features

TFA9882

TFA9896

TFA9892

TFA9874

TFA9894

TFA9878

TFA9873

TFA9875

General

Embedded DSP

No

Yes

Yes

No

Yes

No

No

No

Package Size

1.9 mm2

5.6 mm2

11.36 mm2

6.6 mm2

8.9 mm2

7.1 mm2

5.4 mm2

7.34 mm2

1.27 * 1.49 * 0.6

2.72 * 2.06 * 0.5

3.63 * 3.13 * 0.5

2.62 * 2.51 * 0.4

3.55 * 2.51 * 0.4

2.8 * 2.52 * 4

2.44 * 2.2 * 0.4

2.74 * 2.68 * 0.3

Package Type

WLCSP-9

WLCSP-30

WLCSP-49

WLCSP-36

WLCSP-48

WLSCP36

WLCSP-30

WLCSP-36

Customer Sample

Available

Available

Available

Available

Available

Available

Available

Available

Mass Production

Available

Available

Available

Available

Available

Available

Available

Available

Interfaces

Audio Input Interface

I2S

TDM-I2S

TDM-I2S
or 1 * PDM

TDM-I2S

TDM-I2S

TDM-I2S

TDM-I2S

TDM-I2S

AEC Feedback

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Performance

Boost Voltage

No

6.1 V

12 V

10 V

10 V

10 V

8 V

12 V

RMS Output Power (8Ω~1%THD)

1.45 W

2.1 W

6.6 W

5.6 W

5.6 W

5.6 W

3.5 W

7.7 W

RMS Output Power (6Ω~1%THD)

-

-

6.6 W

6.1 W

6.1 W

6.1 W

4.5 W

7.8 W

RMS Output Power (4Ω~1%THD)

2.7 W

3.2 W

6.7 W

6.5 W

6.5 W

6.2 W

4.7 W

-

Speaker Channels

Mono

Mono

Mono

Mono

Mono

Mono

Mono

Mono

Typical Speaker Load (Ω)

4-8

4-8-32

4-8-32

4-8-32

4-8-32

4-8-32

4-8-32

6-8-38

PSRR (dB)

85

90

75

80

80

80

85

80

DR (dB)

103

100

100

110

110

120

109

116

MB-DRC

None

(On Host)

Yes (3-band)

Yes (On Host)

Yes (3-band)

Yes (On Host)

Yes (On Host)

Yes (On Host)

TDH+N

0.02%

0.03%

0.04%

0.04%

0.04%

0.05%

0.05%

0.05%

Noise (uV) / Receiver Mode

24

30 / 18

16

14

14

7

9

10

Speaker Boost (SB)算法版本

Product Info

Features

SB 1.0

SB 1.5

SB 2.0

SB 3.0

SB 3.5

SB 4.0

Speaker Reliability

Adaptive Speaker Excursion Protection

v1

v1

v1

v2

v2

v3

Adaptive Speaker Temperature Protection

v1

v1

v1

v1

v1

v2 (low pilot-tone)

Speaker Diagnostics (Based on f0 and Rdc)

Yes

Yes

Yes

Yes

Yes

Yes

Amplifier Clipping Prevention

Yes

Yes

Yes

Yes

Yes

Yes

Adaptive Speaker Resonance Compensation

Yes

Yes

Yes

Yes

Yes

Yes

Audio Quality

Speaker Equalizer

10

10

10

15

15

15

Phase Correction

No

No

Yes

Yes

Yes

Yes

Multi-band Compression and Noise Gating

No

v1 (3-band)

v2 (6-band)

v3 (6-band)

v3 (6-band)

v3 (6-band)

Bass Enhancement

No

v1 (3-band)

v1

v2

v3 (Virtual)

v3 (powerbass)

Channel Configurations

Mono

Mono

Stereo

Stereo

Stereo

Stereo

Ultrasound Mixer (96khz with Audio Protection)

No

No

No

Yes

Yes

Yes

Stereo Widening

No

No

No

No

Yes

Yes

Distorsion Control

No

No

No

Yes

Yes

Yes

Power Management

Peak Current Management

No

No

No

Yes

Yes

Yes

Battery Power Saver

No

No

No

Yes

Yes

Yes

为什么选择汇顶?

更优异的音频性能
  • 小扬声器实现最大音量;相较传统系统,再现更低沉的音频

更长的扬声器寿命
  • 通过自适应振幅控制和实时温度保护以防止扬声器损坏

更好的音质
  • 提供无与伦比的声音清晰度,减少了放大器的削峰和扬声器失真

更低的功耗
  • 高效的DC-DC升压器实现低功耗

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