首頁 音訊 音訊放大器 喇叭放大器
首頁
音訊
音訊放大器
喇叭放大器

LM4901

現行

1.6-W、單聲道、類比輸入 AB 類音訊放大器

立即訂購
產品規格表

LM4901

現行
產品規格表 立即訂購

產品詳細資料

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Load (min) (Ω) 4 Output power (W) 1.6 THD + N at 1 kHz (%) 0.2 Iq (typ) (mA) 4 Control interface Hardware Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 PSRR (dB) 64 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Load (min) (Ω) 4 Output power (W) 1.6 THD + N at 1 kHz (%) 0.2 Iq (typ) (mA) 4 Control interface Hardware Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 PSRR (dB) 64 Operating temperature range (°C) -40 to 85
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Available in Space-Saving Packages: WSON and VSSOP
  • Ultra Low Current Shutdown Mode
  • BTL Output can Drive Capacitive Loads
  • Improved Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
  • 2.0 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity-Gain Stable
  • External Gain Configuration Capability
  • User Selectable Shutdown High or Low logic Level
  • Available in Space-Saving Packages: WSON and VSSOP
  • Ultra Low Current Shutdown Mode
  • BTL Output can Drive Capacitive Loads
  • Improved Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
  • 2.0 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity-Gain Stable
  • External Gain Configuration Capability
  • User Selectable Shutdown High or Low logic Level

The LM4901 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 watt of continuous average power to an 8Ω BTL load and 1.6 watts of continuous avearge power to a 4Ω 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 LM4901 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4901 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by either logic high or low depending on mode selection. Driving the shutdown mode pin either high or low enables the shutdown pin to be driven in a likewise manner to enable shutdown.

The LM4901 contains advanced pop and click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions.

The LM4901 is unity-gain stable and can be configured by external gain-setting resistors.

The LM4901 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 watt of continuous average power to an 8Ω BTL load and 1.6 watts of continuous avearge power to a 4Ω 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 LM4901 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4901 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by either logic high or low depending on mode selection. Driving the shutdown mode pin either high or low enables the shutdown pin to be driven in a likewise manner to enable shutdown.

The LM4901 contains advanced pop and click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions.

The LM4901 is unity-gain stable and can be configured by external gain-setting resistors.

open-in-new 尋找其它 喇叭放大器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
具備升級功能，可直接投入使用替代所比較的產品
TPA6211A1 現行 3.1-W、單聲道、類比輸入 AB 類音訊放大器 3.1W Mono Class-AB amp, lower shutdown current: 0.01uA, higher PSRR
功能相似於所比較的產品
TPA2013D1 現行 具整合式升壓轉換器的 2.7-W、單聲道類比輸入 D 類音訊放大器 This product is a higher output power (2.7 W) audio amplifier with differential input, and gain selection, as well as an integrated boost converter

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 1
類型 標題 日期
* Data sheet LM4901  1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic Level datasheet (Rev. F) 2013年 5月 3日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
要求
封裝 引腳 下載
VSSOP (DGS) 10 檢視選項
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片