|
|
|
|
See Also
Customers Who Evaluated This Product Also Evaluated
Product InformationFeatures
Description
The TPA2050D4 features a stereo Class-D poweramplifier along with a stereo DirectPath headphone amplifier. The TPA2050D4 has 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 Ω 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 0 dB (default), -6 dB, -12 dB, and -20 dB, selected through the I2C interface. This allows the headphone volume to be different from the loudspeaker volume if both are used simultaneously. The TPA2050D4 has a 2:1 input MUX for audio source selection. The MUX has mode control which directs the input-to-output signal path. Mode and gain controls operate from a 1.8 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 reduces to less than 2µA. The TPA2050D4YZK is available in a 25-ball 2.61 mm × 2.61 mm WCSP package. |
| Price | Packaging | Samples | ||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Package QTY | Package Carrier | Samples |
| TPA2050D4YZKR | ACTIVE | -40 to 85 | 1.25 | 1ku | DSBGA (YZK) | 25 | 3000 | LARGE T&R | |
| TPA2050D4YZKT | ACTIVE | -40 to 85 | 1.40 | 1ku | DSBGA (YZK) | 25 | 250 | SMALL T&R | Purchase Samples |
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
| Reported Distributor Inventory as of 10:15 AM GMT, 08 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 4 WeeksTPA2050D4YZKR | |||
| Americas | Newark | >1k | |
| Asia | Farnell Asia | 20 | |
| Europe | Farnell | 20 | |
| Worldwide | DigiKey | >1k | |
| TI Lead Time*: 4 WeeksTPA2050D4YZKT | |||
| Americas | Arrow | 250 | |
| Avnet | 250 | ||
| Asia | Farnell Asia | 250 | |
| WPI | 150 | ||
| Europe | Avnet-SILICA | 250 | |
| EBV Elektronik | 125 | ||
| Farnell | 250 | ||
| Spoerle | 250 | ||
| Worldwide | DigiKey | Available | |
| Mouser Electronics | 250 | ||
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
| TPA2050D4YZKR | Green (RoHS & no Sb/Br) | SNAGCU | Level-1-260C-UNLIM | View | View |
| TPA2050D4YZKT | Green (RoHS & no Sb/Br) | SNAGCU | Level-1-260C-UNLIM | View | View |
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.
If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.
Most useful technical documents for TPA2050D4 
| Name | Part # | Company | Tool / Software Type |
| TPA2050D4 Evaluation Module (EVM) | TPA2050D4EVM | Texas Instruments | Development Boards/EVMs |
| Quick Search Selection Tool for Audio | AUDIO_SELECTION_TOOL | Texas Instruments | Free Evaluation Tools |
| Part # | Name | Product Family | Comments |
| TPA2012D2 | 2.1-W Stereo Class-D Audio Amplifier with Gain Select (TPA2012) | DIGITAL AMPLIFIER SOLUTIONS - ANALOG-INPUT CLASS-D SPEAKER AMPLIFIERS | Stereo Class-D Amplifier Only |
| TPA6130A2 | 138-mW DirectPath™ Stereo Headphone Amplifier with I2C Volume Control (TPA6130) | AUDIO AMPLIFIERS - HEADPHONE AMPLIFIERS | Stereo DirectPath Headphone Amplifier with I2C Volume Control Only |
| TPA6132A2 | 25-mW DirectPath™ Stereo Headphone Amplifier with Pop Suppression (TPA6132) | AUDIO AMPLIFIERS - HEADPHONE AMPLIFIERS | Stereo DirectPath Headphone Amplifier Only |
| Customers Who Evaluated This Product Also Evaluated... | |||
| TPA2051D3 | 2.9-W 3-Input Audio Subsystem with SmartGain™ Mono Class-D and DirectPath Headphone Amplifier | AUDIO SUBSYSTEMS-ANALOG-INPUT | TI customers also evaluated this product. |
| TPA2054D4 | 2.4 W/Ch 3-Input Audio Subsystem with Stereo Class-D and DirectPath™ Headphone Amplifier | AUDIO SUBSYSTEMS-ANALOG-INPUT | TI customers also evaluated this product. |
| MSP430F148 | 16-Bit Ultra-Low-Power Microcontroller, 48 kB Flash, 2KB RAM, 12 bit ADC, 2 USARTs, HW multiplier | MSP43016-BIT ULTRA-LOW POWER MCUS-1XX 8MHZ SERIES | TI customers also evaluated this product. |

No Tags are Available for this Part Number