概要
ツール & ソフトウェア
リソース
ソリューション
品質 & 信頼性
Sales Briefcase
eDesignSuite
Get Started
サンプル & 購入
Partner products
  • 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.

    主な特徴

    • 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

回路ダイアグラム

ダウンロード ダウンロード

サンプル & 購入

製品型番
パッケージ
Packing Type
Temperature (°C) Marketing Status
Budgetary Price (US$)*
数量
ECCN (US)
More info
Order from Distributors
Order from ST
最小値
max
TS4909IQT VDFPN 10 3x3x1.0 Tape And Reel -40 85
Active
0.454 1000 EAR99
MORE INFO

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office

TS4909IQT

パッケージ

VDFPN 10 3x3x1.0

Packing Type

Tape And Reel

Unit Price (US$)

0.454*

Operating Temperature (°C)

(最小値)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

0.454

数量

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Recommended for you

00 Files selected for download

技術文書

    • Description バージョン サイズ アクション
      DS4580
      Dual mode low power 150 mW stereo headphone amplifier with capacitor-less and single-ended outputs
      9.0
      581.28 KB
      PDF
      DS4580

      Dual mode low power 150 mW stereo headphone amplifier with capacitor-less and single-ended outputs

    • Description バージョン サイズ アクション
      AN2622
      TS4909 low power stereo headphone amplifier evaluation board user guidelines
      1.2
      105.14 KB
      PDF
      AN2622

      TS4909 low power stereo headphone amplifier evaluation board user guidelines

Publications and Collaterals

    • Description バージョン サイズ アクション
      ST’s solutions for mobile devices 3.2
      2.35 MB
      PDF

      ST’s solutions for mobile devices

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
TS4909IQT
Active
VDFPN 10 3x3x1.0 インダストリアル Ecopack1

TS4909IQT

Package:

VDFPN 10 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VDFPN 10 3x3x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.