Packaging information
| Package | Pins HSSOP (DKQ) | 56 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 1,000 | LARGE T&R |
Features for the TAS6422E-Q1
- AEC-Q100 Qualified for automotive applications
- Temperature grade 1: –40°C to +125°C TA
- Advanced load diagnostics
- DC Diagnostics run without input clocks
- AC Diagnostic for tweeter detection with impedance and phase response
- Easily meets CISPR25-L5 EMC specifications
- Audio inputs
- 2 Channel I2S or 4/8-channel TDM input
- Input sample rates: 44.1 kHz, 48 kHz, 96 kHz
- Input formats: 16-bit to 32-bit I2S, and TDM
- Audio Outputs
- Two-channel bridge-tied load (BTL)
- Single-channel parallel BTL (PBTL)
- Up to 2.1 MHz output switching frequency
- 45 W, 10% THD+N Into 2 Ω at 14.4 V BTL
- 75 W, 10% THD+N Into 4 Ω at 25 V BTL
- 150W, 10% THD+N Into 2 Ω at 25V PBTL
- Audio performance into 4 Ω at 14.4 V BTL
- THD+N < 0.02% at 1 W
- 42 µVRMS output noise
- –90 dB crosstalk
- Load diagnostics
- Output open and shorted load
- Output-to-battery or ground shorts
- Line output detection up to 6 kΩ
- Host-independent operation
- Protection
- Output current limiting and short protection
- 40 V Load dump
- Open ground and power tolerant
- DC offset
- Over-temperature
- Undervoltage and overvoltage
- General Operation
- 4.5 V to 18 V supply voltage
- I2C Control with 4 address options
- Latched & Non-Latched Clip Detect
- Enhanced EMI Management
Description for the TAS6422E-Q1
The TAS6422E-Q1 device is a two-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency enabling a cost-optimized solution in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth.
The devices adds EMI management features including spread-spectrum to assist in system level EMI challenges.
The output switching frequency can be set either above the AM band, which eliminates AM-band interferences and reduces output filtering and cost, or below the AM band to optimize efficiency.
The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection of AC-coupled tweeters to help to reduce test time during the manufacturing process.
The TAS6422E-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. For pin compatible one, two and four-channel devices see the the Device Options table.