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TS4909数据手册ST中文资料规格书

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厂商型号

TS4909

功能描述

超低功耗立体声耳机放大器,具有无电容输出

制造商

ST STMicroelectronics

中文名称

意法半导体 意法半导体集团

数据手册

下载地址下载地址二

更新时间

2025-8-8 19:13:00

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TS4909规格书详情

描述 Description

The TS4909 is a stereo audio amplifier designed to drive headphones in portable applications. The integrated phantom ground is a circuit topology that eliminates the heavy output coupling capacitors. This is of primary importance in portable applications where space constraints are very high. A single-ended configuration is also available, offering even lower power consumption because the phantom ground can be switched off. Pop-and-click noise during switch-on and switch-off phases is eliminated by integrated circuitry.

Specially designed for applications requiring low power supplies, the TS4909 is capable of delivering 31 mW of continuous average power into a 32 Ω load with less than 1% THD+N from a 3 V power supply. Featuring an active low standby mode, the TS4909 reduces the supply current to only 10 nA (typ.). The TS4909 is unity gain stable and can be configured by external gain-setting resistors.

特性 Features

• No output coupling capacitors necessary
• Pop-and-click noise reduction circuitry
• Operating from VCC = 2.2 V to 5.5 V
• Standby mode active low
• Output power:
•158 mW at 5 V, into 16 Ω with 1% THD+N max (1 kHz)
•52 mW at 3.0 V into 16 Ω with 1% THD+N max (1 kHz)
• Ultra-low current consumption: 2.0 mA typ. at 3 V
• Ultra-low standby consumption: 10 nA typ.
• High signal-to-noise ratio: 105 dB typ. at 5 V
• High crosstalk immunity: 110 dB (F = 1 kHz) for single-ended outputs
• PSRR: 72 dB (F = 1 kHz), inputs grounded, for phantom ground outputs
• Low tWU: 50 ms in PG mode, 100 ms in SE mode
• Available in lead-free DFN10 3 x 3 mm

技术参数

  • 制造商编号

    :TS4909

  • 生产厂家

    :ST

  • Marketing Status

    :Active

  • Package

    :VDFPN 10 3x3x1.0

  • Supply Voltage_min(V)

    :2.2

  • Supply Voltage_max(V)

    :5.5

  • Load_typ(Ω)

    :32

  • THD (%)_typ

    :0.1

  • Standby Current_typ(mA)

    :1.0E-5

供应商 型号 品牌 批号 封装 库存 备注 价格
ST
23+
VDFPN 10 3x3x1.0
12500
ST系列在售,可接长单
询价
ST/意法
24+
DFN10
14280
强势渠道订货 7-10天
询价
STMicroelectronics
25+
25000
原厂原包 深圳现货 主打品牌 假一赔百 可开票!
询价
ST/意法
22+
N
28000
原装现货只有原装.假一罚十
询价
ST/意法
2450+
BGA
8850
只做原装正品假一赔十为客户做到零风险!!
询价
ST/意法
24+
BGA
28347
只做全新原装进口现货
询价
ST/意法
23+
QFN
11200
原厂授权一级代理、全球订货优势渠道、可提供一站式BO
询价
ST/意法半导体
25+
原厂封装
10280
原厂授权代理,专注军工、汽车、医疗、工业、新能源!
询价
STMicroelectronics
24+
10-VFDFN 裸露焊盘
65200
一级代理/放心采购
询价
ST
24+
10-DFN
7500
询价