欢迎了解这款多传感便携式音频和显示解决方案，它支持高保真度声音、多点触摸以及触觉反馈和可编程高亮度背光驱动器，能用小型化解决方案满足丰富的用户体验。

解决方案主要特性:

3.2W D 类音频功率放大器

o快速启动时间（4ms），无启动声

低功耗 4 触点触摸屏控制器

o多功能触摸导航

具有集成型升压控制器的压电式触觉驱动器

o支持超薄外观

高亮度 LED 背光驱动器

o能始终在各种不同照明环境下提供清晰锐利的影像

特色产品： 

TPA2011D1 – 3.2W 单声道 D 类音频功率放大器，支持短路自动恢复保护功能

TLV320AIC3256 - 极低功耗的立体声编码解码器支持 miniDSP 和 DirectPath™ 放大器

DRV8662 - 具有集成型升压转换器的压电式触觉驱动器

LP8552 - 具有集成型升压转换器的高效率白光 LED 背光驱动器

TSC2004 - 具有 I2C 串行接口的毫微功率触摸屏控制器

TPA2011D1参数

1.2W mono class-d with auto-recovering short-circuit protection

描述

The TPA2011D1 is a 3.2-W high efficiency filter-free class-D audio power amplifier (class-D amp) in a 1.21 mm × 1.16 mm wafer chip scale package (DSBGA) that requires only three external components.Features like 95% efficiency, 86-dB PSRR, 1.5 mA quiescent current and improved RF immunity make the TPA2011D1 class-D amp ideal for cellular handsets. A fast start-up time of 4 ms with no audible turn-on pop makes the TPA2011D1 ideal for PDA and smart-phone applications. The TPA2011D1 allows independent gain while summing signals from separate sources, and has a low 20 µV noise floor.

特性

Powerful Mono Class-D Amplifier

3.24 W (4 Ω, 5 V, 10% THDN)

2.57 W (4 Ω, 5 V, 1% THDN)

1.80 W (8 Ω, 5 V, 10% THDN)

1.46 W (8 Ω, 5 V, 1% THDN)

Integrated Feedback Resistor of 300 kΩ

Integrated Image Reject Filter for DAC Noise 

Reduction

Low Output Noise of 20 µV

Low Quiescent Current of 1.5 mA

Auto Recovering Short-Circuit Protection

Thermal Overload Protection

9-Ball, 1.21mm × 1.16 mm 0.4 mm Pitch DSBGA

APPLICATIONS

Wireless or Cellular Handsets and PDAs

Portable Navigation Devices

General Portable Audio Devices

TLV320AIC3256参数

具有 miniDSP 和 DirectPath(TM) 耳机放大器的超低功耗立体声编解码器

描述

The TLV320AIC3256 (also called the AIC3256) is a flexible, low-power, low-voltage stereo audio codec with programmable inputs and outputs, PowerTune capabilities, fully-programmable miniDSP, fixed predefined and parameterizable signal processing blocks, integrated PLL, and flexible digital interfaces.

特性

Stereo Audio DAC with 100dB SNR

5.0mW Stereo 48ksps DAC-to-Ground- 

Centered Headphone Playback

Stereo Audio ADC with 93dB SNR

5.2mW Stereo 48ksps ADC Record

PowerTune™

Extensive Signal Processing Options

Embedded miniDSP

Six Single-Ended or 3 Fully-Differential 

Analog Inputs

Stereo Analog and Digital Microphone 

Inputs

Ground-Centered Stereo Headphone Outputs

Very Low-Noise PGA

Low Power Analog Bypass Mode

Programmable Microphone Bias

Programmable PLL

5mm × 5mm 40-pin QFN Package or 

3.5mm × 3.3mm 42-ball WCSP

DRV8662参数

具有集成升压转换器的压电式触觉驱动器

描述

DRV8662 是一款单芯片压电式触觉驱动器，此驱动器具有集成的 105V 升压开关、集成型功率二极管、和集成的完全差分放大器。 这个多用途器件能够驱动高压和低压压电式触觉制动器。 输入信号可为差分或者单端。 DRV8662 支持四种通用输入输出 (GPIO) 接口控制的增益：28.8dB，34.8dB，38.4 dB，和 40.7dB。

使用两个外部电阻来设定升压电压，并且升压电流限制可通过 REXT 电阻进行编程。 此升压转化器架构将不允许对电源电流的要求超过 REXT 电阻所设定的限值；因此，DRV8662 非常适合于便携式应用。 这个特性还允许用户针对基于所需性能要求的给定电感器来优化 DRV8662。

1.5ms 的典型启动时间使得 DRV8862 成为用于快速触觉响应的理想压电式驱动器。 该器件具有热过载保护，可在过驱动时免遭损坏。

特性

高电压压电式触觉驱动器

在 200VPP和 300Hz 上驱动高达 100nF 的负载

在 150VPP和 300Hz 上驱动高达 150nF 的负载

在 100VPP和 300Hz 上驱动高达 330nF 的负载

在 50VPP和 300Hz 上驱动高达 680nF 的负载

差分输出

集成升压转换器

可调升压电压

可调节限流

集成功率场效应晶体管 (FET) 和二极管

无需变压器

1.5ms 的快速启动时间

3.0V 至 5.5V 的宽电源电压范围

1.8V 兼容数字引脚

过热保护

采用 4mm x 4mm x 0.9mm 四方扁平无引线 (QFN) 封装 (RGP)

应用范围

移动电话

平板电脑

便携式计算机

键盘和鼠标

支持触控的器件

LP8552参数

High-Efficiency LED Backlight Driver for Notebooks

描述

The LP8552 is a white LED driver with integrated boost converter. It has six adjustable current sinks which can be controlled by PWM input or with I2C-compatible serial interface. The boost converter has adaptive output voltage control based on the LED driver voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions.

LED outputs have 8-bit current resolution and up to 13-bit PWM resolution with additional 1-3 bit dithering to achieve smooth and precise brightness control. Proprietary Phase Shift PWM control is used for LED outputs to reduce peak current from the boost converter, thus making the boost capacitors smaller. The Phase Shifting scheme also eliminates audible noise.

Automatic PWM dimming at lower brightness values and current dimming at higher brightness values can be used to improve the optical efficiency. Internal EEPROM is used for storing the configuration data. This makes it possible to have minimum external component count and make the solution very small.

The LP8552 has safety features which make it possible to detect LED outputs with open or short fault. As well low input voltage and boost overcurrent conditions are monitored and chip is turned off in case of these events. Thermal de-rating function prevents overheating of the device by reducing backlight brightness when set temperature has been reached.

特性

High-Voltage DC/DC Boost Converter with Integrated FET 

with Four Switching Frequency Options: 156/312/625/1250 kHz

2.7-V to 22-V Input Voltage Range to Support 1x…5x 

cell Li-Ion Batteries

Programmable PWM Resolution

8 to 13 True Bit (Steady State)

Additional 1 to 3 Bits Using Dithering During Brightness 

Changes

I2C-Compatible and PWM Brightness Control

Automatic PWM & Current Dimming for Improved Efficiency

PWM Output Frequency and LED Current set through Resistors

Optional Synchronization to Display VSYNC Signal

6 LED Outputs with LED Fault (Short/Open) Detection

Low Input Voltage, Over-temperature, Overcurrent Detection, 

and Shutdown

Minimum Number of External Components

TSC2004参数

具有 SPI 串行接口的毫微瓦功耗触摸屏控制器

描述

The TSC2004 is a very low-power touch screen controller designed to work with power-sensitive, handheld applications that are based on advanced low-voltage processors. It works with a supply voltage as low as 1.2V, which can be supplied by a single-cell battery. It contains a complete, ultralow-power, 12-bit, analog-to-digital (A/D) resistive touch screen converter, including drivers and the control logic to measure touch pressure.

In addition to these standard features, the TSC2004 offers preprocessing of the touch screen measurements to reduce bus loading, thus reducing the consumption of host processor resources that can then be redirected to more critical functions.

The TSC2004 supports an I2C serial bus and data transmission protocol in all three defined modes: standard, fast, and high-speed. It offers programmable resolution of 10 or 12 bits to accommodate different screen sizes and performance needs.

The TSC2004 is available in a miniature, 18-lead, 5 x 5 array, (2.554 ±0.54)mm x (2.554 ±0.54)mm wafer chip-scale package (WCSP), and a 20-pin, 4 x 4 QFN package. Both packages are characterized for the -40°C to +85°C industrial temperature range.

特性

4-Wire Touch Screen Interface

Ratiometric Conversion

Single 1.2V to 3.6V Supply

Preprocessing to Reduce Bus Activity

High-Speed I2C-Compatible Interface

Internal Detection of Screen Touch

Register-Based Programmable:

10-Bit or 12-Bit Resolution

Sampling Rates

System Timing

On-Chip Temperature Measurement

Touch Pressure Measurement

Auto Power-Down Control

Low Power:

760µW at 1.8V, 50SSPS

580µW at 1.6V, 50SSPS

285µW at 1.2V, 50SSPS

74µW at 1.6V, 8.2kSPS Eq. Rate

47µW at 1.2V, 8.2kSPS Eq. Rate

Enhanced ESD Protection:

±8kV HBM

±1kV CDM

±25kV Air Gap Discharge

±12kV Contact Discharge

2.5 x 2.5 WCSP-18 and 4 x 4 QFN-20 Package

APPLICATIONS

Cellular Phones

Portable Instruments

MP3 Players, Pagers

Multiscreen Touch Control

U.S. Patent No. 6,246,394; other patents pending.

I2C is a trademark of NXP Semiconductors.

All other trademarks are the property of their respective owners