TS4909

批量生产
Design Win

超低功耗立体声耳机放大器,具有无电容输出

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概述
样片和购买
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CAD资源
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质量与可靠性
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产品概述

描述

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.
  • 所有功能

    • 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

电路原理图

EDA符号、封装和3D模型

STMicroelectronics - TS4909

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符号

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3D model

3D模型

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
TS4909IQT
批量生产
VDFPN 10 3x3x1.0 工业 Ecopack1

TS4909IQT

Package:

VDFPN 10 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

VDFPN 10 3x3x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

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产品型号
Order from distributors
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
TS4909IQT 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape and Reel VDFPN 10 3x3x1.0 -40 85 MALAYSIA

TS4909IQT 批量生产

封装:
VDFPN 10 3x3x1.0
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

TS4909IQT

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Country of Origin:

MALAYSIA

无法联系到经销商,请联系我们的销售办事处
Swipe or click the button to explore more details Don't show this again

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商