丝印：68；Package：WDFN-8SL；500mA, 5.5V, Low Noise Low Dropout Regulator

General Description The RTQ2531A is a low-noise, high accuracy, lowdropout linear regulator (LDO), and is capable of sourcing 500mA. The device supports single input supply voltage as low to 1.7V, which makes it easy to use. The RTQ2531A is designed with high PSRR and low noise, which can m

文件：845.01 Kbytes 页数：17 Pages

RichTek

立锜科技

VERSATILE SINGLE CHIP TELEPHONE WITH 14 NUMBER REPERTORY DIALLER

GENERAL DESCRIPTION The SA2531 is a CMOS integrated circuit that contains all the functions needed to form a high performance electronic telephone. The device incorporates LD/MF repertory dialling, melody generation, ring frequency discrimination and a high quality speech circuit. A RAM i

文件：392.11 Kbytes 页数：24 Pages

SAMES

SINGLE CHIP TELEPHONE INTERFACE FOR KEYBOARD ENTRY VIA uC

Scope This application note describes a simple interface for keyboard entry to the SA253x family via a Microcontroller. It also includes hardware description , flowchart and a software example based on the 80Cxx - family of Microcontrollers. Key Features • only 5 outputs and 1 input required fr

文件：71.55 Kbytes 页数：13 Pages

SAMES

SINGLE CHIP TELEPHONE POWER EXTRACTION FOR EXTERNAL LOADS

Scope This application note describes a simple add-on circuit for extracting current to supply external loads. It also includes hardware description ,schematic and Vout/Iout curves. Key Features • Only few additional low-cost components necessary • Can drive line currents up to ILine-5mA (=15

文件：36.48 Kbytes 页数：4 Pages

SAMES