| 产品特性：电平转换 | 品牌：力芯微 | 型号：ET2104 |
| 类型：编码器、解码器 | 针脚数：12 | 用途：音响 |
| 封装：CSP12 | 系列： 4路电平转换 | 批号：2018+ |
| 特色服务：技术支持 | 产品说明：开漏输入/输出 | 货号：2020 |
产品型号主要功能说明封装形式
ET5014 高速4路电平转换IC，强快速驱动 UQFN12
ET2104 4路电平转换IC,适用通讯电平转换, 开漏输入/输出. TSSOP10/CSP12
ET2102 2路电平转换IC,适用通讯电平转换, 开漏输入/输出. uDFN8
音频多媒体电路
功放电路产品型号主要功能说明封装形式
ETK4800 立体声耳机功放 ，输出190mW/16Ω/5V DIP/SOP8
ETK4812 立体声耳机功放，带关断模式，输出105mW/16Ω/5V MSOP/DFN8
ETK4871 单通道AB类音频功放，输出功率3W/3Ω/5V SOP8
ETK4863 带关断和耳机切换功能的立体声功放，输出 DIP/SOP16
ETK8303 单通道D类音频功放电路, 输出2.3W/4Ω/5V MSOP8
DAC
产品型号主要功能说明封装形式
ET8211 16bit数字音频信号解调D/A 转换电路 SOP8
ET4334 24bit 96KHz数字音频信号解调D/A 转换电路 SOP8
ET4345 24bit 192KH数字音频信号解调D/A 转换电路 TSSOP10
ET4344 24bit 192KHz数字音频信号解调D/A 转换电路 TSSOP10
General Description
The ET2104 is a high-performance configurable dual-voltage-supply translator for bi-directional voltage
translation over a wide range of input and output voltages levels. The ET2104 also works in a push-pull
environment. It is intended for use as a voltage translator between I2C-Bus compliant masters and slaves. Internal 10KΩ pull-up resistors are provided.
The device is designed so the A port tracks the VCCA level and the B port tracks the VCCB level. This allows for bi-directional A/B-port voltage translation between any two levels from 1.65V to 5.5V. VCCA can equal VCCB from1.65V to 5.5V. Either VCC can be powered-up first. Internal power-down control circuits place the device in 3-state if either VCC is removed.
The four ports of the device have automatic direction-sense capability. Either port may sense an input signal and transfer it as an output signal to the other port.
Features
Bi-Directional Interface between Any Two Levels:1.65V to 5.5V
No Direction Control Needed
Internal 10K Pull-Up Resistors System GPIO Resources Not Required when OE tied to VCCA
I2C-Bus ***lation
A/B Port VOL = 175mV (Typical), VIL = 150mV, IOL = 6mA
Open-Drain Inputs / Outputs
Works in Push Pull Environment Accommodates Standard-Mode and Fast-Mode I2C-Bus Devices
Supports I2C Clock Stretching & Multi-Master
Fully Configurable: Inputs and Outputs Track VCC
Non-Preferential Power-Up; Either VCC Can Power-Up First Outputs Switch to 3-State if Either VCC is at GND
Tolerant Output Enable: 5V
ETK4800是一颗采用CMOS技术的二声道AB类耳机放大器，是利用AB推挽（push-pull）方式来设计的。输出功率为290mW。ETK4800主要应用于便携式音响领域。
功能特点
· 工作电压
单电源供电：2V～6V
双电源供电：±1.0V～±3.5V
· 高信噪比：100dB
· 高转换比：5V/?s
· 低失真度：-65dB
· 电源抗纹波能力强
· 在10％的失真情况下输出功率
290mW
190mW
· 低功耗
· 极宽的工作温度范围
· 无转换开/关声
· SOP8或DIP8封装
