LED数码管驱动

SM1628C 是一种带键盘扫描接口的 LED 驱动控制专用芯片。 •采用 CMOS 工艺\n•VDD 供电为 3.3V-5.0V\n•超强的输入端口干扰能力\n•输入端口内置上拉电阻\n•显示模式：4 位× 13 段—7 位× 10 段\n•按键扫描：10× 2 位\n•辉度调节电路（占空比 8 级可调）\n•串行接口（CLK，STB，DI/O)\n•振荡方式：内置 RC 振荡\n•内置上电复位电路\n•ESD HBM：8KV\n•封装形式：SOP28;

LED drive control chip

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单/双色驱动

适用于LED单、双色LED屏的驱动芯片，应用简单、可靠稳定。

内置 SRAM 的 PWM 恒流驱动 IC

3-Cell, High-Efficiency, Step-Up DC/DC Converter

FEATURES 4V to 24V Input Voltage Operation. Adjustable Output Voltage. Low Quiescent Current at 100µA. Pulse-Skipping and Pulse-Frequency Modulation Maintain High Efficiency (max. 95). 90KHz to 250KHz Oscillator Frequency. Power-Saving Shutdown Mode (8µA Typical). Push-Pull

Clarification to the Serial I/O Control Register Description for the DSP1620/27/28/29 Devices

Active Clock Frequency The purpose of this advisory is to clarify the function of the serial I/O control registers in the DSP1620/27/28/29 devices. Specifically, it clarifies the function of the control register field that specifies the active clock frequency. The device data sheets state that th

LG1628AXA SONET/SDH 2.488 Gbits/s Transimpedance Amplifier

Functional Description The Lucent Technologies Microelectronics Group LG1628AXA is a hybrid integrated circuit that combines the Lucent LG1628A gallium arsenide (GaAs) transimpedance amplifier chip with an external Si dual operational amplifier and necessary filtering to achieve an ultrawide dyna

HIGH-EFFICIENCY STEP-UP DC-DC CONVERTER

DESCRIPTION The SC1628 is a high performance step-up DC-DC converter, designed to drive an external power switch to generate programmable positive voltages. In the particularly suitable LCD contrast bias and flash memory programming power supply applications, typical full load efficiencies are

HIGH-EFFICIENCY STEP-UP DC-DC CONVERTER

DESCRIPTION The SC1628 is a high performance step-up DC-DC converter, designed to drive an external power switch to generate programmable positive voltages. In the particularly suitable LCD contrast bias and flash memory programming power supply applications, typical full load efficiencies are