TPA2050D4YZKR
Active1.4-W, STEREO, ANALOG INPUT CLASS-D AUDIO AMPLIFIER WITH 145-MW HEADPHONE AMP & 2:1 MUX
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TPA2050D4YZKR
Active1.4-W, STEREO, ANALOG INPUT CLASS-D AUDIO AMPLIFIER WITH 145-MW HEADPHONE AMP & 2:1 MUX
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Technical Specifications
Parameters and characteristics for this part
| Specification | TPA2050D4YZKR |
|---|---|
| Features | Short-Circuit and Thermal Protection, I2C, Differential Inputs, Shutdown, Depop, Volume Control, Mute |
| Max Output Power x Channels @ Load | 1.4 W |
| Max Output Power x Channels @ Load [x] | 2 |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | 2-Channel (Stereo) with Stereo Headphones |
| Package / Case | DSBGA, 25-UFBGA |
| Supplier Device Package | 25-DSBGA |
| Type | Class D |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 2.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.83 | |
| Digi-Reel® | 1 | $ 2.83 | ||
| Tape & Reel (TR) | 3000 | $ 1.42 | ||
| 6000 | $ 1.37 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.35 | |
| 100 | $ 2.06 | |||
| 250 | $ 1.45 | |||
| 1000 | $ 1.17 | |||
Description
General part information
TPA2050D4 Series
The TPA2050D4 features a stereo Class-D power amplifier 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.
Documents
Technical documentation and resources