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

LM49153

現行

具無夾式雜訊閘極的 1.35-W、立體聲道類比輸入 AB 類音訊放大器

立即訂購
產品規格表

LM49153

現行
產品規格表 立即訂購

產品詳細資料

Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 8 Output power (W) 1.35 SNR (dB) 98 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 1.2 Control interface I2C Closed/open loop Open Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 94 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 8 Output power (W) 1.35 SNR (dB) 98 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 1.2 Control interface I2C Closed/open loop Open Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 94 Operating temperature range (°C) -40 to 85
DSBGA (YFQ) 25 4.84 mm² 2.2 x 2.2
  • Class G Ground Referenced Headphone Outputs
  • High Efficiency Class D Amplifier with Spread Spectrum
  • No Clip
  • Speaker Protection
  • Noise Gate
  • I2C Volume and Mode Control
  • Advanced Click-and-Pop Suppression
  • Micro-Power Shutdown

Key Specifications

  • Class G Headphone Amplifier,
    HPVDD = 1.8V, RL = 32Ω
    • IDDQHP, 1.2mA (Typ)
    • POUT, THD+N ≤ 1%, 25mW (Typ)
    • HP VOS, 0.5mV (Typ)
  • Mono Class D Speaker Amplifier,
    RL = 8Ω, THD+N < 1%
    • POUT, LSVDD = 5.0V, 1.35W (Typ)
    • POUT, LSVDD = 3.6V, 680mW (Typ)
    • Efficiency 88% (Typ)

All trademarks are the property of their respective owners.

  • Class G Ground Referenced Headphone Outputs
  • High Efficiency Class D Amplifier with Spread Spectrum
  • No Clip
  • Speaker Protection
  • Noise Gate
  • I2C Volume and Mode Control
  • Advanced Click-and-Pop Suppression
  • Micro-Power Shutdown

Key Specifications

  • Class G Headphone Amplifier,
    HPVDD = 1.8V, RL = 32Ω
    • IDDQHP, 1.2mA (Typ)
    • POUT, THD+N ≤ 1%, 25mW (Typ)
    • HP VOS, 0.5mV (Typ)
  • Mono Class D Speaker Amplifier,
    RL = 8Ω, THD+N < 1%
    • POUT, LSVDD = 5.0V, 1.35W (Typ)
    • POUT, LSVDD = 3.6V, 680mW (Typ)
    • Efficiency 88% (Typ)

All trademarks are the property of their respective owners.

The LM49153 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. Part of Texas Instruments' PowerWise family of products, the LM49153 combines an earpiece switch, a high efficiency 25mW class G headphone amplifier, and a high efficiency 1.35W class D loudspeaker into a single device.

The headphone amplifiers feature Texas Instruments' class G ground referenced architecture that creates a ground-referenced output with dynamic supply rails for optimum efficiency. The class D amplifier features an ALC (Automatic Level Control) with a noise gate that provides both no-clip and speaker protection.

Mode selection, shutdown control, and volume are controlled through an I2C compatible interface.

Click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM49153 is available in an ultra-small 25-bump 0.4mm pitch DSBGA package (2.30mm x 2.42mm).

The LM49153 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. Part of Texas Instruments' PowerWise family of products, the LM49153 combines an earpiece switch, a high efficiency 25mW class G headphone amplifier, and a high efficiency 1.35W class D loudspeaker into a single device.

The headphone amplifiers feature Texas Instruments' class G ground referenced architecture that creates a ground-referenced output with dynamic supply rails for optimum efficiency. The class D amplifier features an ALC (Automatic Level Control) with a noise gate that provides both no-clip and speaker protection.

Mode selection, shutdown control, and volume are controlled through an I2C compatible interface.

Click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM49153 is available in an ultra-small 25-bump 0.4mm pitch DSBGA package (2.30mm x 2.42mm).
filter 尋找其它 喇叭放大器
下載 觀看有字幕稿的影片 影片

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 Mono Audio w/Class G Headphone Amp, Class D Spkr Amp, Noise Gate & Spkr Protect datasheet (Rev. C) 2013年 5月 1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 針腳 CAD 符號、佔位空間與 3D 模型
DSBGA (YFQ) 25 Ultra Librarian
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
  • 認證摘要
  • 進行中持續性的可靠性監測
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