Model No: TAS6422QDKQRQ1
Texas Instruments TAS6422QDKQRQ1
Manufacturer: Texas Instruments
SEMICON NO.: TAS6422QDKQRQ1
Package: 56-HSSOP
Stock: In stock
Description: Audio Amplifier IC 2-Channel (Stereo) Class D
SEMICON NO.: TAS6422QDKQRQ1
Package: 56-HSSOP
Stock: In stock
Description: Audio Amplifier IC 2-Channel (Stereo) Class D
Quantity :
| Mfr | Texas Instruments |
| Device Type | 2-Channel Digital-Input Class-D Audio Amplifier |
| Amplifier Core Architecture | Class-D |
| Number of Channels | 2 (Stereo) |
| Output Configuration | BTL, with option of PBTL |
| Input Type | Digital (I²S, TDM) |
| Input Sample Rates | 44.1 kHz, 48 kHz, 96 kHz |
| Input Formats | 16-bit to 32-bit I²S and TDM (2-ch I²S or 4/8-ch TDM) |
| Switching Frequency (Max) | 2.1 MHz |
| Supply Voltage | 4.5 V to 26.4 V |
| Control Interface | I²C |
| Operating Temperature | –40°C to +125°C |
| Package | 56-HSSOP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The TAS6422QDKQRQ1 is a two-channel automotive Class-D digital audio amplifier from Texas Instruments, built to AEC-Q100 Grade 1 standards and packaged in a 56-pin HSSOP PowerPAD package. Supporting a wide supply range of 4.5 V to 26.4 V, this device delivers up to 75 W per channel into a 4-ohm load at 25 V input, accepts I2S/TDM digital audio inputs, and features configurable switching frequency, I2C control, integrated load diagnostics and robust protection circuits to handle automotive start-stop and load dump conditions with high audio fidelity and low thermal dissipation.
Key Features & Applications
● Two Class-D amplifier channels, 27 W at 14.4 V / 4 Ω, peak 75 W at 25 V / 4 Ω
● Digital audio interface supporting I2S, TDM, 16-bit to 32-bit audio up to 96 kHz sampling rate
● I2C interface for gain adjustment, fault monitoring and load diagnostic configuration
● Configurable switching frequency up to 2.1 MHz to avoid AM radio interference
● Comprehensive protection: load dump, short-circuit, over-temperature, undervoltage and overvoltage protection
● Built-in speaker load diagnostics to detect open load, short and AC-coupled tweeters for production testing
● Two Class-D amplifier channels, 27 W at 14.4 V / 4 Ω, peak 75 W at 25 V / 4 Ω
● Digital audio interface supporting I2S, TDM, 16-bit to 32-bit audio up to 96 kHz sampling rate
● I2C interface for gain adjustment, fault monitoring and load diagnostic configuration
● Configurable switching frequency up to 2.1 MHz to avoid AM radio interference
● Comprehensive protection: load dump, short-circuit, over-temperature, undervoltage and overvoltage protection
● Built-in speaker load diagnostics to detect open load, short and AC-coupled tweeters for production testing
This automotive Class-D amplifier is mainly used for car audio head units, external vehicle amplifier modules, in-vehicle infotainment systems, automotive speaker drive subsystems and premium automotive sound systems that require high power efficiency, reliable fault detection and compliance with strict automotive electronic standards.
FAQ
Q: What is the advantage of adjustable switching frequency?
A: It can be set above AM band to reduce radio interference and simplify filter design.
Q: What does the integrated load diagnostic function do?
A: It automatically detects speaker wiring faults to accelerate manufacturing inspection and prevent device damage.
Alternative Models
1. TAS6424QDKQRQ1: TI four-channel automotive Class-D amplifier with identical automotive qualification and diagnostic features for multi-speaker audio systems.
2. TAS6422EQDKQRQ1: Enhanced version of TAS6422-Q1 with improved load dump protection and optimized EMC performance for harsh vehicle environments.
3. TAS3251DKQR: High-power stereo Class-D amplifier with higher output power for non-automotive high-fidelity audio equipment.
2. TAS6422EQDKQRQ1: Enhanced version of TAS6422-Q1 with improved load dump protection and optimized EMC performance for harsh vehicle environments.
3. TAS3251DKQR: High-power stereo Class-D amplifier with higher output power for non-automotive high-fidelity audio equipment.
