TPA2054D4A
- Stereo Class-D Amp:
- 1.4 W into 8
from 5.0 V (10% THD + N)
- 1.25 W into 8
from 5.0 V (1% THD + N)
- 1.4 W into 8
- DirectPath™ Stereo Headphone Amplifier
- No Output Capacitors Required
- Independent Gain Select for Headphone Amplifier
- Eight Programmable Maximum Headphone Voltage Limits
- Two Single-Ended or One Differential Stereo Input
- 3:1 Input MUX with Mode Control
- 32-Step Volume Control for Both Input Channels
- Independent Shutdown for Headphone and Class-D Amplifiers
- Short-Circuit and Thermal-Overload Protection
- ±8 kV HBM ESD Protection on Headphone Outputs
- I2C™ Interface
- 25-Ball 2,61 mm × 2,61 mm WCSP
- APPLICATIONS
- Smart Phones / Cellular Phones
- Laptop Computers
- Portable Gaming
- Portable Media Players
DirectPath is a trademark of Texas Instruments.
I2C is a trademark of NXP Semiconductors.
The TPA2054D4A features a stereo Class-D power amplifier along with a stereo DirectPath™ headphone amplifier. The TPA2054D4A has a mono differential input and two stereo single-ended (SE) inputs that can be configured as one stereo differential input. Both input channels have a 32-step volume control and the DirectPath headphone amplifier has a 4-level gain control for coarse volume adjustment. All amplifiers have output short-circuit and thermal- overload protection.
The Class-D amplifiers deliver 1.25 W into 8 at 1% THD from a 5.0 V supply, and 700 mW from 3.6 V. The DirectPath headphone amplifier features an output voltage limiter to reduce the maximum output power to one of seven possible limits. The voltage limiter is programmed through the I2C interface.
DirectPath eliminates the need for external DC- blocking output capacitors to the headphones. The built-in charge pump creates a negative supply voltage for the headphone amplifier, allowing a 0 V DC bias at the output.
The DirectPath headphone amplifier gains are +6 dB (default), 0 dB, –6 dB, and –14 dB, selected through the I2C interface. This allows the headphone volume to be different from the loudspeaker volume if both are used simultaneously.
The TPA2054D4A has a 3:1 input MUX for audio source selection. Mode and gain controls operate from a 1.7 V to 3.6 V compatible I2C interface.
The voltage supply range for both the Class-D amplifiers and the headphone charge pump is 2.5 V to 5.5 V. The Class-D amplifiers use a combined 7 mA and the headphone amplifier uses 10 mA of typical quiescent current.
Total supply current in shutdown reduces to less than 4 µA. Undervoltage lockout keeps supply current to less than 4 µA when the supply voltage is less than 2.1 V.
The TPA2054D4AYZK is available in a 25-ball 2,61 mm × 2,61 mm WCSP package.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | 1.4 W/CH Stereo Class-D Audio Subsystem with DirectPath™ Headphone Amp datasheet | 2010年 5月 26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)。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
DSBGA (YZK) | 25 | Ultra Librarian |
訂購與品質
- 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
- 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。