ホーム オーディオ、ハプティクス、およびピエゾ オーディオ アンプ 汎用オーディオ アンプ
ホーム
オーディオ、ハプティクス、およびピエゾ
オーディオ アンプ
汎用オーディオ アンプ

LM4879

アクティブ

超低電流シャットダウン モード搭載、1.1W、モノラル、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

LM4879

アクティブ
データシート ご注文はこちら

製品詳細

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 1.2 THD + N at 1 kHz (%) 0.1 Load (min) (Ω) 8 Analog supply voltage (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 1.2 THD + N at 1 kHz (%) 0.1 Load (min) (Ω) 8 Analog supply voltage (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
WSON (NGT) 8 16 mm² (4 mm × 4 mm) VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity Gain Stable
  • Ultra Low Current Shutdown Mode
  • Fast Turn On: 80ms (typ), 110ms (max) with 1.0µF Capacitor
  • BTL Output Can Drive Capacitive Loads up to 100pF
  • Advanced Pop and Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions
  • 2.2V - 5.0V Operation
  • Available in Space-Saving DSBGA, WSON, and VSSOP Packages

Key Specifications

  • PSRR: 5V, 3V at 217Hz: 62dB (typ)
  • Power Output at 5V, 1%THD+N: 1.1W (typ)
  • Power Output at 3V, 1%THD+N: 350mW (typ)
  • Shutdown Current: 0.1µA (typ)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity Gain Stable
  • Ultra Low Current Shutdown Mode
  • Fast Turn On: 80ms (typ), 110ms (max) with 1.0µF Capacitor
  • BTL Output Can Drive Capacitive Loads up to 100pF
  • Advanced Pop and Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions
  • 2.2V - 5.0V Operation
  • Available in Space-Saving DSBGA, WSON, and VSSOP Packages

Key Specifications

  • PSRR: 5V, 3V at 217Hz: 62dB (typ)
  • Power Output at 5V, 1%THD+N: 1.1W (typ)
  • Power Output at 3V, 1%THD+N: 350mW (typ)
  • Shutdown Current: 0.1µA (typ)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

The LM4879 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4879 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for lower-power portable applications where minimal space and power consumption are primary requirements.

The LM4879 features a low-power consumption global shutdown mode, which is achieved by driving the shutdown pin with logic low. Additionally, the LM4879 features an internal thermal shutdown protection mechanism.

The LM4879 contains advanced pop and click circuitry which eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4879 is unity-gain stable and can be configured by external gain-setting resistors.

The LM4879 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4879 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for lower-power portable applications where minimal space and power consumption are primary requirements.

The LM4879 features a low-power consumption global shutdown mode, which is achieved by driving the shutdown pin with logic low. Additionally, the LM4879 features an internal thermal shutdown protection mechanism.

The LM4879 contains advanced pop and click circuitry which eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4879 is unity-gain stable and can be configured by external gain-setting resistors.

filter その他の 汎用オーディオ アンプ を検索
ダウンロード

技術資料

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
上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート LM4879 1.1 Watt Audio Power Amplifier データシート (Rev. G) 2013/05/02

購入と品質

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。​​​​​​​​​​​​​​