Specifications
| Type | Description |
|---|---|
| Part Number | TAS2770 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | 26-pin QFN 4 mm x 3.5 mm; DSBGA 2 mm x 2.52 mm |
| Output Power | 20 W; 4 ohm load, VBAT = 16 V, THD+N = 1% |
| Output Power | 15.4 W; 4 ohm load, VBAT = 12.6 V, THD+N = 1% |
| Output Power | 15 W; 8 ohm load, VBAT = 16 V, THD = 1% |
| THD+N | 0.03%; 1 W output, 4 ohm load, VBAT = 12.6 V |
| Idle Channel Noise | 32 uVrms; A-weighted |
| PSRR | 90 dB; 200 mVpp ripple, 20 Hz to 20 kHz |
| Efficiency | 82.5%; 1 W output, 4 ohm load, VBAT = 12.6 V |
| Hardware Shutdown VBAT Current | < 1 uA; HW shutdown mode |
| Idle Dissipation | 42 mW / 63 mW; VBAT = 8.4 V / 12.6 V |
| Sample Rate Range | 44.1 kHz to 192 kHz; digital audio interface |
| TDM Interface Channel Capacity | 8 channels; 32-bit / 96 kHz I2S/TDM operation |
| I2C Address Count | 8 selectable addresses; I2C control interface |
| VBAT Supply Voltage | 4.5 V to 16 V; recommended operating condition |
| AVDD Supply Voltage | 1.65 V min, 1.8 V nom, 1.95 V max; recommended operating condition |
| IOVDD Supply Voltage | 1.65 V min, 1.8 V nom, 1.95 V max; recommended operating condition |
| Minimum Speaker Impedance | 3.2 ohm; recommended operating condition |
| Minimum Speaker Inductance | 10 uH; recommended operating condition |
| AVDD Absolute Maximum Supply Voltage | -0.3 V to 2 V; absolute maximum rating |
| IOVDD Absolute Maximum Supply Voltage | -0.3 V to 2 V; absolute maximum rating |
| VBAT Absolute Maximum Supply Voltage | -0.3 V to 18 V; absolute maximum rating |
| Digital IO Input Voltage | -0.3 V to 2.3 V; referenced to IOVDD supply; absolute maximum rating |
| Operating Free-Air Temperature | -40 C to 85 C; device functional and reliable; some performance characteristics may be degraded |
| Performance Free-Air Temperature | -20 C to 70 C; all performance characteristics are met |
| Operating Junction Temperature | -40 C to 150 C; absolute maximum rating |
| Storage Temperature | -65 C to 150 C; absolute maximum rating |
| ESD Rating HBM | +/-2500 V; Human-body model per ANSI/ESDA/JEDEC JS-001 |
| ESD Rating CDM | +/-1500 V; Charged-device model per JEDEC JESD22-C101 |
| Junction-to-Ambient Thermal Resistance | 57.0 C/W; QFN RJQ, 26 pins |
| Junction-to-Case Top Thermal Resistance | 0.3 C/W; QFN RJQ, 26 pins |
| Junction-to-Board Thermal Resistance | 8.5 C/W; QFN RJQ, 26 pins |
| High-Level Digital Input Threshold | 0.65 x IOVDD; all digital pins except SDA and SCL; IOVDD = 1.8 V |
| Low-Level Digital Input Threshold | 0.35 x IOVDD; all digital pins except SDA and SCL; IOVDD = 1.8 V |
| High-Level I2C Input Threshold | 0.7 x IOVDD; SDA and SCL; IOVDD = 1.8 V |
| Low-Level I2C Input Threshold | 0.3 x IOVDD; SDA and SCL; IOVDD = 1.8 V |
| Digital Input Leakage High | -5 uA min, 0.1 uA typ, 5 uA max; all digital pins; input = IOVDD |
| Digital Input Leakage Low | -5 uA min, 0.1 uA typ, 5 uA max; all digital pins; input = GND |
| Datasheet Status | request_only |
Product Overview
The TAS2770 is a Texas Instruments digital input Class-D audio amplifier in the Signal_Chain category. It is specified for VBAT operation from 4.5 V to 16 V, with AVDD and IOVDD recommended at 1.65 V minimum, 1.8 V nominal, and 1.95 V maximum. Package options are a 26-pin QFN measuring 4 mm x 3.5 mm and a DSBGA measuring 2 mm x 2.52 mm.
Power and audio performance figures include 20 W into a 4 ohm load at VBAT = 16 V and THD+N = 1%, 15.4 W into 4 ohm at VBAT = 12.6 V and THD+N = 1%, and 15 W into 8 ohm at VBAT = 16 V and THD = 1%. At 1 W output into 4 ohm with VBAT = 12.6 V, THD+N is listed as 0.03% and efficiency as 82.5%.
The digital interface supports 44.1 kHz to 192 kHz sample rates, 8-channel 32-bit/96 kHz I2S/TDM operation, and eight selectable I2C addresses. Assembly and operating limits include a 3.2 ohm minimum speaker impedance, 10 uH minimum speaker inductance, -40 C to 85 C operating free-air temperature, and -20 C to 70 C performance free-air temperature.
Key Features
- 20 W output into 4 ohm at 16 V VBAT
- 15.4 W output into 4 ohm at 12.6 V VBAT
- 15 W output into 8 ohm at 16 V VBAT
- 0.03% THD+N at 1 W into 4 ohm
- 32 uVrms A-weighted idle channel noise
- 90 dB PSRR from 20 Hz to 20 kHz
- 82.5% efficiency at 1 W into 4 ohm
- 44.1 kHz to 192 kHz digital audio sample rates
- 8-channel 32-bit/96 kHz I2S/TDM operation
- Eight selectable I2C control addresses
- 4.5 V to 16 V recommended VBAT range
- Less than 1 uA VBAT current in hardware shutdown
Typical Applications
- Digital input audio amplification
- Class-D speaker drive stages
- I2S/TDM audio interface designs
- Multi-channel digital audio systems
- I2C-controlled amplifier designs
- 4 ohm speaker output designs
- 8 ohm speaker output designs
Procurement Notes
When requesting a quote for TAS2770, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What output power does the TAS2770 support?
The TAS2770 is specified for 20 W into a 4 ohm load at VBAT = 16 V and THD+N = 1%. It is also specified for 15.4 W into 4 ohm at 12.6 V and 15 W into 8 ohm at 16 V.
What supply voltage range is recommended for TAS2770 VBAT?
The recommended VBAT operating range for the TAS2770 is 4.5 V to 16 V. AVDD and IOVDD are each specified with 1.65 V minimum, 1.8 V nominal, and 1.95 V maximum recommended operating values.
Which digital audio interface rates are listed for TAS2770?
The TAS2770 digital audio interface supports sample rates from 44.1 kHz to 192 kHz. The extracted facts also list 8-channel capacity for 32-bit / 96 kHz I2S/TDM operation.
What package options are provided for the TAS2770?
The listed package options are a 26-pin QFN measuring 4 mm x 3.5 mm and a DSBGA measuring 2 mm x 2.52 mm. Thermal resistance data is provided for the QFN RJQ 26-pin package.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 7, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.