ホーム オーディオ オーディオ・アンプ スピーカ・アンプ
ホーム
オーディオ
オーディオ・アンプ
スピーカ・アンプ

LM49101

アクティブ

1540mW、モノラル、44mW ステレオ、アナログ入力 Class-AB オーディオ・アンプ

ご注文はこちら
データシート

LM49101

アクティブ
データシート ご注文はこちら

製品詳細

Rating Catalog Operating temperature range (°C) -40 to 85
Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFQ) 25 4.84 mm² 2.2 x 2.2
  • Differential Mono Input and Stereo Single-Ended Input
  • Separate Earpiece (Receiver) Differential Input
  • Analog Switch for a Separate Earpiece Path
  • 32-Step Digital Volume Control (-80 to +18dB)
  • Three Independent Volume Channels (Left, Right, Mono)
  • Separate Headphone Volume Control
  • Flexible Output for Speaker and Headphone Output
  • True Ground Headphone Amplifier Eliminates Large DC Blocking Capacitors Reducing PCB Space and Cost
  • Hardware Reset Function
  • RF Immunity Topology
  • “Click and Pop” Suppression Circuitry
  • Thermal Shutdown Protection
  • Micro-Power Shutdown
  • I2C Control Interface
  • Available in Space-Saving DSBGA Package

Key Specifications

  • Supply Voltage (VDDLS): 2.7V ≤ VDDLS ≤ 5.5V
  • Supply Voltage (VDDHP): 1.8V ≤ VDDHP ≤ 2.9V
  • I2C Supply Voltage: 1.7V ≤ I2CVDD ≤ 5.5V
  • Output Power, VDDLS = 5V, VDDHP = 2.75V, 1% THD+N
    • RL = 8Ω Speaker 1.3W (Typ)
    • RL = 32Ω Headphone 45mW (Typ)
  • Output Power VDDLS = 3.3V, VDDHP = 2.75V, 1% THD+N
    • RL = 8Ω Speaker 540W (Typ)
    • RL = 32Ω Headphone 40mW (Typ)
  • PSRR: VDD = 3.3V, 217Hz Ripple, Mono In: 90dB (Typ)
  • Shutdown Power Supply Current: 0.01μA (Typ)

All trademarks are the property of their respective owners.

  • Differential Mono Input and Stereo Single-Ended Input
  • Separate Earpiece (Receiver) Differential Input
  • Analog Switch for a Separate Earpiece Path
  • 32-Step Digital Volume Control (-80 to +18dB)
  • Three Independent Volume Channels (Left, Right, Mono)
  • Separate Headphone Volume Control
  • Flexible Output for Speaker and Headphone Output
  • True Ground Headphone Amplifier Eliminates Large DC Blocking Capacitors Reducing PCB Space and Cost
  • Hardware Reset Function
  • RF Immunity Topology
  • “Click and Pop” Suppression Circuitry
  • Thermal Shutdown Protection
  • Micro-Power Shutdown
  • I2C Control Interface
  • Available in Space-Saving DSBGA Package

Key Specifications

  • Supply Voltage (VDDLS): 2.7V ≤ VDDLS ≤ 5.5V
  • Supply Voltage (VDDHP): 1.8V ≤ VDDHP ≤ 2.9V
  • I2C Supply Voltage: 1.7V ≤ I2CVDD ≤ 5.5V
  • Output Power, VDDLS = 5V, VDDHP = 2.75V, 1% THD+N
    • RL = 8Ω Speaker 1.3W (Typ)
    • RL = 32Ω Headphone 45mW (Typ)
  • Output Power VDDLS = 3.3V, VDDHP = 2.75V, 1% THD+N
    • RL = 8Ω Speaker 540W (Typ)
    • RL = 32Ω Headphone 40mW (Typ)
  • PSRR: VDD = 3.3V, 217Hz Ripple, Mono In: 90dB (Typ)
  • Shutdown Power Supply Current: 0.01μA (Typ)

All trademarks are the property of their respective owners.

The LM49101 is a fully integrated audio subsystem with a mono power amplifier capable of delivering 540mW of continuous average power into an 8Ω BTL speaker load with 1% THD+N using a 3.3V supply. The LM49101 includes a separate stereo headphone amplifier that can deliver 44mW per channel into 32Ω loads using a 2.75V supply.

The LM49101 has four input channels. A pair of single-ended inputs and a fully differential input channel with volume control and amplification stages. Additionally, a bypass differential input is available that connects directly to the mono speaker outputs through an analog switch without any amplification or volume control stages. The LM49101 features a 32–step digital volume control on the input stage and an 8–step digital volume control on the headphone output stage.

The digital volume control and output modes, programmed through a two-wire I2C compatible interface, allows flexibility in routing and mixing audio channels.

The LM49101 is designed for cellular phones, PDAs, and other portable handheld applications. The high level of integration minimizes external components. The True Ground headphone amplifier eliminates the physically large DC blocking output capacitors reducing required board space and reducing cost.

The LM49101 is a fully integrated audio subsystem with a mono power amplifier capable of delivering 540mW of continuous average power into an 8Ω BTL speaker load with 1% THD+N using a 3.3V supply. The LM49101 includes a separate stereo headphone amplifier that can deliver 44mW per channel into 32Ω loads using a 2.75V supply.

The LM49101 has four input channels. A pair of single-ended inputs and a fully differential input channel with volume control and amplification stages. Additionally, a bypass differential input is available that connects directly to the mono speaker outputs through an analog switch without any amplification or volume control stages. The LM49101 features a 32–step digital volume control on the input stage and an 8–step digital volume control on the headphone output stage.

The digital volume control and output modes, programmed through a two-wire I2C compatible interface, allows flexibility in routing and mixing audio channels.

The LM49101 is designed for cellular phones, PDAs, and other portable handheld applications. The high level of integration minimizes external components. The True Ground headphone amplifier eliminates the physically large DC blocking output capacitors reducing required board space and reducing cost.

filter その他の スピーカ・アンプ を検索
ダウンロード

技術資料

star =TI が選定したこの製品の主要ドキュメント
結果が見つかりませんでした。検索条件をクリアしてから、再度検索を試してください。
1 をすべて表示
種類 タイトル 最新の英語版をダウンロード 日付
* データシート LM49101 Mono Class AB Audio Subsys w/True Gnd Headphone Amp & Earpiece Switch データシート (Rev. A) 2013年 4月 8日

購入と品質

記載されている情報：
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報：
  • ファブの拠点
  • 組み立てを実施した拠点

サポートとトレーニング

TI E2E™ フォーラムでは、TI のエンジニアからの技術サポートを提供

投稿されたすべてのフォーラムトピック (英語) を表示

コンテンツは、TI 投稿者やコミュニティ投稿者によって「現状のまま」提供されるもので、TI による仕様の追加を意図するものではありません。使用条件をご確認ください。

TI 製品の品質、パッケージ、ご注文に関するお問い合わせは、TI サポートをご覧ください。​​​​​​​​​​​​​​