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TS4871IDT 데이터시트(PDF) 1 Page - STMicroelectronics |
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TS4871IDT 데이터시트(HTML) 1 Page - STMicroelectronics |
1 / 28 page 1/28 s OPERATING FROM V CC = 2.5V to 5.5V s 1W RAIL TO RAIL OUTPUT POWER @ Vcc=5V, THD=1%, f=1kHz, with 8 Ω Load s ULTRA LOW CONSUMPTION IN STANDBY MODE (10nA) s 75dB PSRR @ 217Hz from 5V to 2.6V s ULTRA LOW POP & CLICK s ULTRA LOW DISTORTION (0.1%) s UNITY GAIN STABLE s AVAILABLE IN SO8, MiniSO8 & DFN8 3x3mm DESCRIPTION The TS4871 is an Audio Power Amplifier capable of delivering 1W of continuous RMS Ouput Power into 8 Ω load @ 5V. This Audio Amplifier is exhibiting 0.1% distortion level (THD) from a 5V supply for a Pout = 250mW RMS. An external standby mode control reduces the supply current to less than 10nA. An internal thermal shutdown protection is also provided. The TS4871 has been designed for high quality audio applications such as mobile phones and to minimize the number of external components. The unity-gain stable amplifier can be configured by external gain setting resistors. APPLICATIONS s Mobile Phones (Cellular / Cordless) s Laptop / Notebook Computers s PDAs s Portable Audio Devices ORDER CODE MiniSO & DFN only available in Tape & Reel with T suffix(IST & IQT) D = Small Outline Package (SO) - also available in Tape & Reel (DT) PIN CONNECTIONS (Top View) Part Number Temperature Range: I Package Marking DS Q TS4871 -40, +85°C • 4871I •• 4871 Standby Bypass V+ IN VIN- V2 OUT GND VCC VOUT1 1 2 3 4 8 7 6 5 Rin Cin Rstb Cb Rfeed 4 3 2 1 5 8 Vin- Vin+ - + - + Bypass Standby Bias 6 Vout1 Vout2 Av=-1 TS4871 RL 8 Ohms Audio Input Vcc Vcc Cfeed Cs 7 TYPICAL APPLICATION SCHEMATIC TS4871IST - MiniSO8 TS4871ID-TS4871IDT - SO8 Standby Bypass V+ IN VIN- V2 OUT GND VCC VOUT1 1 2 3 4 8 7 6 5 1 2 3 4 5 8 7 6 STANDBY BYPASS V OUT 2 V IN- V IN+ Vcc V OUT 1 GND 1 2 3 4 5 8 7 6 STANDBY BYPASS V OUT 2 V IN- V IN+ Vcc V OUT 1 GND TS4871IQT - DFN8 TS4871 OUTPUT RAIL TO RAIL 1W AUDIO POWER AMPLIFIER WITH STANDBY MODE June 2003 |
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